======================================
| [  203.548113][ T2436] br0: port 1(vx0) entered forwarding state
| [  203.552702][ T2436] ------------[ cut here ]------------
| [ 203.553050][ T2436] WARNING: CPU: 1 PID: 2436 at ./include/net/netdev_lock.h:17 netif_set_mtu_ext (./include/net/netdev_lock.h:17 ./include/net/netdev_lock.h:15 ./include/net/netdev_lock.h:25 net/core/dev.c:9610) 
| [  203.553690][ T2436] Modules linked in: sctp act_gact cls_flower sch_ingress vxlan ip6_gre gre [last unloaded: test_bpf]
[  203.554937][ T2436] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 203.555334][ T2436] RIP: 0010:netif_set_mtu_ext (./include/net/netdev_lock.h:17 ./include/net/netdev_lock.h:15 ./include/net/netdev_lock.h:25 net/core/dev.c:9610) 
[ 203.555658][ T2436] Code: 00 00 8b 05 77 04 bc 02 85 c0 0f 84 52 fe ff ff 48 8d bb c0 0c 00 00 be ff ff ff ff e8 da fc 9b 00 85 c0 0f 85 39 fe ff ff 90 <0f> 0b 90 e9 30 fe ff ff 48 b8 00 00 00 00 00 fc ff df 4c 89 fa 48
All code
========
   0:	00 00                	add    %al,(%rax)
   2:	8b 05 77 04 bc 02    	mov    0x2bc0477(%rip),%eax        # 0x2bc047f
   8:	85 c0                	test   %eax,%eax
   a:	0f 84 52 fe ff ff    	je     0xfffffffffffffe62
  10:	48 8d bb c0 0c 00 00 	lea    0xcc0(%rbx),%rdi
  17:	be ff ff ff ff       	mov    $0xffffffff,%esi
  1c:	e8 da fc 9b 00       	call   0x9bfcfb
  21:	85 c0                	test   %eax,%eax
  23:	0f 85 39 fe ff ff    	jne    0xfffffffffffffe62
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	e9 30 fe ff ff       	jmp    0xfffffffffffffe62
  32:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
  39:	fc ff df 
  3c:	4c 89 fa             	mov    %r15,%rdx
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	e9 30 fe ff ff       	jmp    0xfffffffffffffe38
   8:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
   f:	fc ff df 
  12:	4c 89 fa             	mov    %r15,%rdx
  15:	48                   	rex.W
[  203.556754][ T2436] RSP: 0018:ffffc90003c0f080 EFLAGS: 00010246
[  203.557164][ T2436] RAX: 0000000000000000 RBX: ffff888011aca000 RCX: 0000000000000001
[  203.557633][ T2436] RDX: 0000000000000000 RSI: ffffffff93510751 RDI: ffffffff92c58280
[  203.558188][ T2436] RBP: ffffc90003c0f168 R08: 0000000000000000 R09: 0000000000000000
[  203.558648][ T2436] R10: ffffc90003c0f198 R11: ffffffff93f8d1e0 R12: 1ffff92000781e14
[  203.559113][ T2436] R13: 00000000000005dc R14: ffffc90003c0f198 R15: ffff888011acaf48
[  203.559577][ T2436] FS:  00007fb3a28f4800(0000) GS:ffff8880d7419000(0000) knlGS:0000000000000000
[  203.560240][ T2436] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  203.560631][ T2436] CR2: 00007fb3a2b4fb78 CR3: 00000000052e2001 CR4: 0000000000772ef0
[  203.561116][ T2436] PKRU: 55555554
[  203.561358][ T2436] Call Trace:
[  203.561589][ T2436]  <TASK>
[ 203.561751][ T2436] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 203.562082][ T2436] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 203.562405][ T2436] netif_set_mtu (net/core/dev.c:9652) 
[ 203.562712][ T2436] ? __pfx_netif_set_mtu (net/core/dev.c:9647) 
[ 203.563041][ T2436] dev_set_mtu (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:47 net/core/dev_api.c:249) 
[ 203.563277][ T2436] br_mtu_auto_adjust (net/bridge/br_if.c:525) 
[ 203.563590][ T2436] br_add_if (net/bridge/br_if.c:697) 
[ 203.563832][ T2436] do_set_master (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:41 net/core/rtnetlink.c:2949) 
[ 203.564153][ T2436] ? rtnl_configure_link (net/core/rtnetlink.c:3592) 
[ 203.564461][ T2436] rtnl_newlink_create (net/core/rtnetlink.c:3840) 
[ 203.564769][ T2436] ? __pfx_rtnl_newlink_create (net/core/rtnetlink.c:3791) 
[ 203.565093][ T2436] ? __dev_get_by_name (net/core/dev.c:865) 
[ 203.565406][ T2436] ? rtnl_dev_get (net/core/rtnetlink.c:3404) 
[ 203.565709][ T2436] ? __pfx_rtnl_dev_get (net/core/rtnetlink.c:3404) 
[ 203.566025][ T2436] ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4056) 
[ 203.566331][ T2436] ? reacquire_held_locks (kernel/locking/lockdep.c:5388) 
[ 203.566644][ T2436] __rtnl_newlink (net/core/rtnetlink.c:3942) 
[ 203.566976][ T2436] rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4058) 
[ 203.567291][ T2436] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 203.567608][ T2436] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/rtnetlink.c:6944) 
[ 203.567911][ T2436] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 203.568226][ T2436] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 203.568534][ T2436] rtnetlink_rcv_msg (net/core/rtnetlink.c:6946) 
[ 203.568846][ T2436] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 203.569173][ T2436] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 203.569486][ T2436] netlink_rcv_skb (net/netlink/af_netlink.c:2551) 
[ 203.569793][ T2436] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 203.570109][ T2436] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2528) 
[ 203.570426][ T2436] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/netlink/af_netlink.c:340) 
[ 203.570730][ T2436] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 ./include/net/netns/generic.h:48 net/netlink/af_netlink.c:333) 
[ 203.571051][ T2436] netlink_unicast (net/netlink/af_netlink.c:1321 net/netlink/af_netlink.c:1346) 
[ 203.571367][ T2436] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1331) 
[ 203.571672][ T2436] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 203.571988][ T2436] netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 203.572299][ T2436] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1815) 
[ 203.572605][ T2436] ? __import_iovec (lib/iov_iter.c:1441 lib/iov_iter.c:1456) 
[ 203.572918][ T2436] ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 203.573247][ T2436] ? __pfx_____sys_sendmsg (net/socket.c:2560) 
[ 203.573565][ T2436] ? __pfx_copy_msghdr_from_user (net/socket.c:2540) 
[ 203.573968][ T2436] ___sys_sendmsg (net/socket.c:2670) 
[ 203.574278][ T2436] ? __pfx____sys_sendmsg (net/socket.c:2657) 
[ 203.574585][ T2436] ? __pfx_handle_pte_fault (mm/memory.c:6026) 
[ 203.574899][ T2436] ? reacquire_held_locks (kernel/locking/lockdep.c:5388) 
[ 203.575214][ T2436] ? do_user_addr_fault (arch/x86/mm/fault.c:1327) 
[ 203.575545][ T2436] ? __handle_mm_fault (mm/memory.c:6212) 
[ 203.575849][ T2436] ? __pfx___handle_mm_fault (mm/memory.c:6121) 
[ 203.576162][ T2436] ? lock_vma_under_rcu (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 mm/mmap_lock.c:171) 
[ 203.576496][ T2436] __sys_sendmsg (net/socket.c:2700) 
[ 203.576804][ T2436] ? __pfx___sys_sendmsg (net/socket.c:2685) 
[ 203.577128][ T2436] ? exc_page_fault (./arch/x86/include/asm/irqflags.h:26 ./arch/x86/include/asm/irqflags.h:109 ./arch/x86/include/asm/irqflags.h:151 arch/x86/mm/fault.c:1484 arch/x86/mm/fault.c:1532) 
[ 203.577450][ T2436] ? do_user_addr_fault (./arch/x86/include/asm/atomic.h:93 ./include/linux/atomic/atomic-arch-fallback.h:949 ./include/linux/atomic/atomic-instrumented.h:401 ./include/linux/refcount.h:389 ./include/linux/refcount.h:432 ./include/linux/mmap_lock.h:142 ./include/linux/mmap_lock.h:237 arch/x86/mm/fault.c:1338) 
[ 203.577760][ T2436] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 203.578080][ T2436] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 203.578388][ T2436] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[  203.578770][ T2436] RIP: 0033:0x7fb3a2ac11e7
[ 203.579097][ T2436] Code: 0e 00 f7 d8 64 89 02 48 c7 c0 ff ff ff ff eb b9 0f 1f 00 f3 0f 1e fa 64 8b 04 25 18 00 00 00 85 c0 75 10 b8 2e 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 51 c3 48 83 ec 28 89 54 24 1c 48 89 74 24 10
All code
========
   0:	0e                   	(bad)
   1:	00 f7                	add    %dh,%bh
   3:	d8 64 89 02          	fsubs  0x2(%rcx,%rcx,4)
   7:	48 c7 c0 ff ff ff ff 	mov    $0xffffffffffffffff,%rax
   e:	eb b9                	jmp    0xffffffffffffffc9
  10:	0f 1f 00             	nopl   (%rax)
  13:	f3 0f 1e fa          	endbr64
  17:	64 8b 04 25 18 00 00 	mov    %fs:0x18,%eax
  1e:	00 
  1f:	85 c0                	test   %eax,%eax
  21:	75 10                	jne    0x33
  23:	b8 2e 00 00 00       	mov    $0x2e,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 00 f0 ff ff    	cmp    $0xfffffffffffff000,%rax		<-- trapping instruction
  30:	77 51                	ja     0x83
  32:	c3                   	ret
  33:	48 83 ec 28          	sub    $0x28,%rsp
  37:	89 54 24 1c          	mov    %edx,0x1c(%rsp)
  3b:	48 89 74 24 10       	mov    %rsi,0x10(%rsp)

Code starting with the faulting instruction
===========================================
   0:	48 3d 00 f0 ff ff    	cmp    $0xfffffffffffff000,%rax
   6:	77 51                	ja     0x59
   8:	c3                   	ret
   9:	48 83 ec 28          	sub    $0x28,%rsp
   d:	89 54 24 1c          	mov    %edx,0x1c(%rsp)
  11:	48 89 74 24 10       	mov    %rsi,0x10(%rsp)
[  203.580205][ T2436] RSP: 002b:00007ffd3743d4a8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[  203.580671][ T2436] RAX: ffffffffffffffda RBX: 00007ffd3743dbe0 RCX: 00007fb3a2ac11e7
[  203.581152][ T2436] RDX: 0000000000000000 RSI: 00007ffd3743d510 RDI: 0000000000000005
[  203.581623][ T2436] RBP: 0000000000000006 R08: 000000000000006c R09: 0000000000000000
[  203.582101][ T2436] R10: 00007fb3a2b4fac0 R11: 0000000000000246 R12: 00007ffd3743dc18
[  203.582566][ T2436] R13: 00000000686e791c R14: 0000000000499600 R15: 00007ffd3743d600
| [  207.658355][ T2466] ------------[ cut here ]------------
| [ 207.658673][ T2466] WARNING: CPU: 0 PID: 2466 at ./include/net/netdev_lock.h:17 netif_set_mtu_ext (./include/net/netdev_lock.h:17 ./include/net/netdev_lock.h:15 ./include/net/netdev_lock.h:25 net/core/dev.c:9610) 
| [  207.659312][ T2466] Modules linked in: sctp act_gact cls_flower sch_ingress vxlan ip6_gre gre [last unloaded: test_bpf]
| [  207.660636][ T2466] Tainted: [W]=WARN
[  207.660881][ T2466] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 207.661299][ T2466] RIP: 0010:netif_set_mtu_ext (./include/net/netdev_lock.h:17 ./include/net/netdev_lock.h:15 ./include/net/netdev_lock.h:25 net/core/dev.c:9610) 
[ 207.661634][ T2466] Code: 00 00 8b 05 77 04 bc 02 85 c0 0f 84 52 fe ff ff 48 8d bb c0 0c 00 00 be ff ff ff ff e8 da fc 9b 00 85 c0 0f 85 39 fe ff ff 90 <0f> 0b 90 e9 30 fe ff ff 48 b8 00 00 00 00 00 fc ff df 4c 89 fa 48
All code
========
   0:	00 00                	add    %al,(%rax)
   2:	8b 05 77 04 bc 02    	mov    0x2bc0477(%rip),%eax        # 0x2bc047f
   8:	85 c0                	test   %eax,%eax
   a:	0f 84 52 fe ff ff    	je     0xfffffffffffffe62
  10:	48 8d bb c0 0c 00 00 	lea    0xcc0(%rbx),%rdi
  17:	be ff ff ff ff       	mov    $0xffffffff,%esi
  1c:	e8 da fc 9b 00       	call   0x9bfcfb
  21:	85 c0                	test   %eax,%eax
  23:	0f 85 39 fe ff ff    	jne    0xfffffffffffffe62
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	e9 30 fe ff ff       	jmp    0xfffffffffffffe62
  32:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
  39:	fc ff df 
  3c:	4c 89 fa             	mov    %r15,%rdx
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	e9 30 fe ff ff       	jmp    0xfffffffffffffe38
   8:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
   f:	fc ff df 
  12:	4c 89 fa             	mov    %r15,%rdx
  15:	48                   	rex.W
[  207.662766][ T2466] RSP: 0018:ffffc9000404f080 EFLAGS: 00010246
[  207.663173][ T2466] RAX: 0000000000000000 RBX: ffff8880026a2000 RCX: 0000000000000001
[  207.663650][ T2466] RDX: 0000000000000000 RSI: ffffffff93510751 RDI: ffffffff92c58280
[  207.664128][ T2466] RBP: ffffc9000404f168 R08: 0000000000000000 R09: 0000000000000000
[  207.664603][ T2466] R10: ffffc9000404f198 R11: ffffffff93f8d1e0 R12: 1ffff92000809e14
[  207.665228][ T2466] R13: 00000000000005dc R14: ffffc9000404f198 R15: ffff8880026a2f48
[  207.665706][ T2466] FS:  00007f368116e800(0000) GS:ffff8880d7399000(0000) knlGS:0000000000000000
[  207.666403][ T2466] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  207.666803][ T2466] CR2: 000000000043d940 CR3: 0000000009a5e005 CR4: 0000000000772ef0
[  207.667420][ T2466] PKRU: 55555554
[  207.667658][ T2466] Call Trace:
[  207.667891][ T2466]  <TASK>
[ 207.668215][ T2466] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 207.668538][ T2466] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 207.668865][ T2466] netif_set_mtu (net/core/dev.c:9652) 
[ 207.669326][ T2466] ? __pfx_netif_set_mtu (net/core/dev.c:9647) 
[ 207.669658][ T2466] dev_set_mtu (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:47 net/core/dev_api.c:249) 
[ 207.669898][ T2466] br_mtu_auto_adjust (net/bridge/br_if.c:525) 
[ 207.670360][ T2466] br_add_if (net/bridge/br_if.c:697) 
[ 207.670610][ T2466] do_set_master (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:41 net/core/rtnetlink.c:2949) 
[ 207.670923][ T2466] ? rtnl_configure_link (net/core/rtnetlink.c:3592) 
[ 207.671302][ T2466] rtnl_newlink_create (net/core/rtnetlink.c:3840) 
[ 207.671622][ T2466] ? __pfx_rtnl_newlink_create (net/core/rtnetlink.c:3791) 
[ 207.671934][ T2466] ? __dev_get_by_name (net/core/dev.c:865) 
[ 207.672262][ T2466] ? rtnl_dev_get (net/core/rtnetlink.c:3404) 
[ 207.672573][ T2466] ? __pfx_rtnl_dev_get (net/core/rtnetlink.c:3404) 
[ 207.672895][ T2466] ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4056) 
[ 207.673220][ T2466] ? reacquire_held_locks (kernel/locking/lockdep.c:5388) 
[ 207.673553][ T2466] __rtnl_newlink (net/core/rtnetlink.c:3942) 
[ 207.673877][ T2466] rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4058) 
[ 207.674208][ T2466] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 207.674539][ T2466] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/rtnetlink.c:6944) 
[ 207.674854][ T2466] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 207.675181][ T2466] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 207.675496][ T2466] rtnetlink_rcv_msg (net/core/rtnetlink.c:6946) 
[ 207.675817][ T2466] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 207.676154][ T2466] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 207.676476][ T2466] netlink_rcv_skb (net/netlink/af_netlink.c:2551) 
[ 207.676795][ T2466] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 207.677127][ T2466] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2528) 
[ 207.677454][ T2466] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/netlink/af_netlink.c:340) 
[ 207.677768][ T2466] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 ./include/net/netns/generic.h:48 net/netlink/af_netlink.c:333) 
[ 207.678101][ T2466] netlink_unicast (net/netlink/af_netlink.c:1321 net/netlink/af_netlink.c:1346) 
[ 207.678427][ T2466] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1331) 
[ 207.678744][ T2466] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 207.679076][ T2466] netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 207.679398][ T2466] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1815) 
[ 207.679712][ T2466] ? __import_iovec (lib/iov_iter.c:1441 lib/iov_iter.c:1456) 
[ 207.680041][ T2466] ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 207.680360][ T2466] ? __pfx_____sys_sendmsg (net/socket.c:2560) 
[ 207.680679][ T2466] ? __pfx_copy_msghdr_from_user (net/socket.c:2540) 
[ 207.681098][ T2466] ___sys_sendmsg (net/socket.c:2670) 
[ 207.681427][ T2466] ? __pfx____sys_sendmsg (net/socket.c:2657) 
[ 207.681742][ T2466] ? __pfx_handle_pte_fault (mm/memory.c:6026) 
[ 207.682069][ T2466] ? reacquire_held_locks (kernel/locking/lockdep.c:5388) 
[ 207.682385][ T2466] ? do_user_addr_fault (arch/x86/mm/fault.c:1327) 
[ 207.682711][ T2466] ? __handle_mm_fault (mm/memory.c:6212) 
[ 207.683035][ T2466] ? __pfx___handle_mm_fault (mm/memory.c:6121) 
[ 207.683349][ T2466] ? lock_vma_under_rcu (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 mm/mmap_lock.c:171) 
[ 207.683686][ T2466] __sys_sendmsg (net/socket.c:2700) 
[ 207.684010][ T2466] ? __pfx___sys_sendmsg (net/socket.c:2685) 
[ 207.684328][ T2466] ? exc_page_fault (./arch/x86/include/asm/irqflags.h:26 ./arch/x86/include/asm/irqflags.h:109 ./arch/x86/include/asm/irqflags.h:151 arch/x86/mm/fault.c:1484 arch/x86/mm/fault.c:1532) 
[ 207.684650][ T2466] ? do_user_addr_fault (./arch/x86/include/asm/atomic.h:93 ./include/linux/atomic/atomic-arch-fallback.h:949 ./include/linux/atomic/atomic-instrumented.h:401 ./include/linux/refcount.h:389 ./include/linux/refcount.h:432 ./include/linux/mmap_lock.h:142 ./include/linux/mmap_lock.h:237 arch/x86/mm/fault.c:1338) 
[ 207.684984][ T2466] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 207.685314][ T2466] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 207.685632][ T2466] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[  207.686036][ T2466] RIP: 0033:0x7f368133b1e7
[ 207.686363][ T2466] Code: 0e 00 f7 d8 64 89 02 48 c7 c0 ff ff ff ff eb b9 0f 1f 00 f3 0f 1e fa 64 8b 04 25 18 00 00 00 85 c0 75 10 b8 2e 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 51 c3 48 83 ec 28 89 54 24 1c 48 89 74 24 10
All code
========
   0:	0e                   	(bad)
   1:	00 f7                	add    %dh,%bh
   3:	d8 64 89 02          	fsubs  0x2(%rcx,%rcx,4)
   7:	48 c7 c0 ff ff ff ff 	mov    $0xffffffffffffffff,%rax
   e:	eb b9                	jmp    0xffffffffffffffc9
  10:	0f 1f 00             	nopl   (%rax)
  13:	f3 0f 1e fa          	endbr64
  17:	64 8b 04 25 18 00 00 	mov    %fs:0x18,%eax
  1e:	00 
  1f:	85 c0                	test   %eax,%eax
  21:	75 10                	jne    0x33
  23:	b8 2e 00 00 00       	mov    $0x2e,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 00 f0 ff ff    	cmp    $0xfffffffffffff000,%rax		<-- trapping instruction
  30:	77 51                	ja     0x83
  32:	c3                   	ret
  33:	48 83 ec 28          	sub    $0x28,%rsp
  37:	89 54 24 1c          	mov    %edx,0x1c(%rsp)
  3b:	48 89 74 24 10       	mov    %rsi,0x10(%rsp)

Code starting with the faulting instruction
===========================================
   0:	48 3d 00 f0 ff ff    	cmp    $0xfffffffffffff000,%rax
   6:	77 51                	ja     0x59
   8:	c3                   	ret
   9:	48 83 ec 28          	sub    $0x28,%rsp
   d:	89 54 24 1c          	mov    %edx,0x1c(%rsp)
  11:	48 89 74 24 10       	mov    %rsi,0x10(%rsp)
[  207.687504][ T2466] RSP: 002b:00007ffc6e3a9218 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[  207.687990][ T2466] RAX: ffffffffffffffda RBX: 00007ffc6e3a9950 RCX: 00007f368133b1e7
[  207.688465][ T2466] RDX: 0000000000000000 RSI: 00007ffc6e3a9280 RDI: 0000000000000005
[  207.688957][ T2466] RBP: 0000000000000006 R08: 000000000000006c R09: 0000000000000000
[  207.689442][ T2466] R10: 00007f36813c9ac0 R11: 0000000000000246 R12: 00007ffc6e3a9988
[  207.689915][ T2466] R13: 00000000686e7920 R14: 0000000000499600 R15: 00007ffc6e3a9370
| [  214.048445][ T2524] ------------[ cut here ]------------
| [ 214.048766][ T2524] WARNING: CPU: 3 PID: 2524 at ./include/net/netdev_lock.h:17 netif_set_mtu_ext (./include/net/netdev_lock.h:17 ./include/net/netdev_lock.h:15 ./include/net/netdev_lock.h:25 net/core/dev.c:9610) 
| [  214.049399][ T2524] Modules linked in: sctp act_gact cls_flower sch_ingress vxlan ip6_gre gre [last unloaded: test_bpf]
| [  214.050681][ T2524] Tainted: [W]=WARN
[  214.050907][ T2524] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 214.051316][ T2524] RIP: 0010:netif_set_mtu_ext (./include/net/netdev_lock.h:17 ./include/net/netdev_lock.h:15 ./include/net/netdev_lock.h:25 net/core/dev.c:9610) 
[ 214.051637][ T2524] Code: 00 00 8b 05 77 04 bc 02 85 c0 0f 84 52 fe ff ff 48 8d bb c0 0c 00 00 be ff ff ff ff e8 da fc 9b 00 85 c0 0f 85 39 fe ff ff 90 <0f> 0b 90 e9 30 fe ff ff 48 b8 00 00 00 00 00 fc ff df 4c 89 fa 48
All code
========
   0:	00 00                	add    %al,(%rax)
   2:	8b 05 77 04 bc 02    	mov    0x2bc0477(%rip),%eax        # 0x2bc047f
   8:	85 c0                	test   %eax,%eax
   a:	0f 84 52 fe ff ff    	je     0xfffffffffffffe62
  10:	48 8d bb c0 0c 00 00 	lea    0xcc0(%rbx),%rdi
  17:	be ff ff ff ff       	mov    $0xffffffff,%esi
  1c:	e8 da fc 9b 00       	call   0x9bfcfb
  21:	85 c0                	test   %eax,%eax
  23:	0f 85 39 fe ff ff    	jne    0xfffffffffffffe62
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	e9 30 fe ff ff       	jmp    0xfffffffffffffe62
  32:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
  39:	fc ff df 
  3c:	4c 89 fa             	mov    %r15,%rdx
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	e9 30 fe ff ff       	jmp    0xfffffffffffffe38
   8:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
   f:	fc ff df 
  12:	4c 89 fa             	mov    %r15,%rdx
  15:	48                   	rex.W
[  214.052733][ T2524] RSP: 0018:ffffc9000429f080 EFLAGS: 00010246
[  214.053126][ T2524] RAX: 0000000000000000 RBX: ffff88800a162000 RCX: 0000000000000001
[  214.053580][ T2524] RDX: 0000000000000000 RSI: ffffffff93510751 RDI: ffffffff92c58280
[  214.054045][ T2524] RBP: ffffc9000429f168 R08: 0000000000000000 R09: 0000000000000000
[  214.054503][ T2524] R10: ffffc9000429f198 R11: ffffffff93f8d1e0 R12: 1ffff92000853e14
[  214.054965][ T2524] R13: 00000000000005dc R14: ffffc9000429f198 R15: ffff88800a162f48
[  214.055419][ T2524] FS:  00007fdc49b21800(0000) GS:ffff8880d7519000(0000) knlGS:0000000000000000
[  214.055966][ T2524] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  214.056352][ T2524] CR2: 00007fdc49c21130 CR3: 000000000272d003 CR4: 0000000000772ef0
[  214.056807][ T2524] PKRU: 55555554
[  214.057066][ T2524] Call Trace:
[  214.057294][ T2524]  <TASK>
[ 214.057452][ T2524] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 214.057763][ T2524] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 214.058090][ T2524] netif_set_mtu (net/core/dev.c:9652) 
[ 214.058397][ T2524] ? __pfx_netif_set_mtu (net/core/dev.c:9647) 
[ 214.058713][ T2524] dev_set_mtu (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:47 net/core/dev_api.c:249) 
[ 214.058956][ T2524] br_mtu_auto_adjust (net/bridge/br_if.c:525) 
[ 214.059268][ T2524] br_add_if (net/bridge/br_if.c:697) 
[ 214.059508][ T2524] do_set_master (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:41 net/core/rtnetlink.c:2949) 
[ 214.059811][ T2524] ? rtnl_configure_link (net/core/rtnetlink.c:3592) 
[ 214.060129][ T2524] rtnl_newlink_create (net/core/rtnetlink.c:3840) 
[ 214.060436][ T2524] ? __pfx_rtnl_newlink_create (net/core/rtnetlink.c:3791) 
[ 214.060737][ T2524] ? __dev_get_by_name (net/core/dev.c:865) 
[ 214.061049][ T2524] ? rtnl_dev_get (net/core/rtnetlink.c:3404) 
[ 214.061361][ T2524] ? __pfx_rtnl_dev_get (net/core/rtnetlink.c:3404) 
[ 214.061670][ T2524] ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4056) 
[ 214.061978][ T2524] ? reacquire_held_locks (kernel/locking/lockdep.c:5388) 
[ 214.062292][ T2524] __rtnl_newlink (net/core/rtnetlink.c:3942) 
[ 214.062605][ T2524] rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4058) 
[ 214.062913][ T2524] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 214.063237][ T2524] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/rtnetlink.c:6944) 
[ 214.063538][ T2524] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 214.063843][ T2524] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 214.064172][ T2524] rtnetlink_rcv_msg (net/core/rtnetlink.c:6946) 
[ 214.064482][ T2524] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 214.064795][ T2524] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 214.065116][ T2524] netlink_rcv_skb (net/netlink/af_netlink.c:2551) 
[ 214.065420][ T2524] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 214.065725][ T2524] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2528) 
[ 214.066070][ T2524] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/netlink/af_netlink.c:340) 
[ 214.066373][ T2524] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 ./include/net/netns/generic.h:48 net/netlink/af_netlink.c:333) 
[ 214.066680][ T2524] netlink_unicast (net/netlink/af_netlink.c:1321 net/netlink/af_netlink.c:1346) 
[ 214.067003][ T2524] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1331) 
[ 214.067308][ T2524] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 214.067616][ T2524] netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 214.067922][ T2524] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1815) 
[ 214.068239][ T2524] ? __import_iovec (lib/iov_iter.c:1441 lib/iov_iter.c:1456) 
[ 214.068550][ T2524] ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 214.068859][ T2524] ? __pfx_____sys_sendmsg (net/socket.c:2560) 
[ 214.069175][ T2524] ? __pfx_copy_msghdr_from_user (net/socket.c:2540) 
[ 214.069568][ T2524] ___sys_sendmsg (net/socket.c:2670) 
[ 214.069876][ T2524] ? __pfx____sys_sendmsg (net/socket.c:2657) 
[ 214.070191][ T2524] ? __pfx_handle_pte_fault (mm/memory.c:6026) 
[ 214.070503][ T2524] ? reacquire_held_locks (kernel/locking/lockdep.c:5388) 
[ 214.070806][ T2524] ? do_user_addr_fault (arch/x86/mm/fault.c:1327) 
[ 214.071123][ T2524] ? __handle_mm_fault (mm/memory.c:6212) 
[ 214.071442][ T2524] ? __pfx___handle_mm_fault (mm/memory.c:6121) 
[ 214.071744][ T2524] ? lock_vma_under_rcu (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 mm/mmap_lock.c:171) 
[ 214.072080][ T2524] __sys_sendmsg (net/socket.c:2700) 
[ 214.072389][ T2524] ? __pfx___sys_sendmsg (net/socket.c:2685) 
[ 214.072693][ T2524] ? exc_page_fault (./arch/x86/include/asm/irqflags.h:26 ./arch/x86/include/asm/irqflags.h:109 ./arch/x86/include/asm/irqflags.h:151 arch/x86/mm/fault.c:1484 arch/x86/mm/fault.c:1532) 
[ 214.073016][ T2524] ? do_user_addr_fault (./arch/x86/include/asm/atomic.h:93 ./include/linux/atomic/atomic-arch-fallback.h:949 ./include/linux/atomic/atomic-instrumented.h:401 ./include/linux/refcount.h:389 ./include/linux/refcount.h:432 ./include/linux/mmap_lock.h:142 ./include/linux/mmap_lock.h:237 arch/x86/mm/fault.c:1338) 
[ 214.073324][ T2524] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 214.073635][ T2524] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 214.073957][ T2524] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[  214.074334][ T2524] RIP: 0033:0x7fdc49cee1e7
[ 214.074647][ T2524] Code: 0e 00 f7 d8 64 89 02 48 c7 c0 ff ff ff ff eb b9 0f 1f 00 f3 0f 1e fa 64 8b 04 25 18 00 00 00 85 c0 75 10 b8 2e 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 51 c3 48 83 ec 28 89 54 24 1c 48 89 74 24 10
All code
========
   0:	0e                   	(bad)
   1:	00 f7                	add    %dh,%bh
   3:	d8 64 89 02          	fsubs  0x2(%rcx,%rcx,4)
   7:	48 c7 c0 ff ff ff ff 	mov    $0xffffffffffffffff,%rax
   e:	eb b9                	jmp    0xffffffffffffffc9
  10:	0f 1f 00             	nopl   (%rax)
  13:	f3 0f 1e fa          	endbr64
  17:	64 8b 04 25 18 00 00 	mov    %fs:0x18,%eax
  1e:	00 
  1f:	85 c0                	test   %eax,%eax
  21:	75 10                	jne    0x33
  23:	b8 2e 00 00 00       	mov    $0x2e,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 00 f0 ff ff    	cmp    $0xfffffffffffff000,%rax		<-- trapping instruction
  30:	77 51                	ja     0x83
  32:	c3                   	ret
  33:	48 83 ec 28          	sub    $0x28,%rsp
  37:	89 54 24 1c          	mov    %edx,0x1c(%rsp)
  3b:	48 89 74 24 10       	mov    %rsi,0x10(%rsp)

Code starting with the faulting instruction
===========================================
   0:	48 3d 00 f0 ff ff    	cmp    $0xfffffffffffff000,%rax
   6:	77 51                	ja     0x59
   8:	c3                   	ret
   9:	48 83 ec 28          	sub    $0x28,%rsp
   d:	89 54 24 1c          	mov    %edx,0x1c(%rsp)
  11:	48 89 74 24 10       	mov    %rsi,0x10(%rsp)
[  214.075737][ T2524] RSP: 002b:00007ffde33601b8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[  214.076205][ T2524] RAX: ffffffffffffffda RBX: 00007ffde33608f0 RCX: 00007fdc49cee1e7
[  214.076662][ T2524] RDX: 0000000000000000 RSI: 00007ffde3360220 RDI: 0000000000000005
[  214.077131][ T2524] RBP: 0000000000000006 R08: 0000000000000078 R09: 0000000000000000
[  214.077595][ T2524] R10: 00007fdc49d7cac0 R11: 0000000000000246 R12: 00007ffde3360928
[  214.078057][ T2524] R13: 00000000686e7926 R14: 0000000000499600 R15: 00007ffde3360310
| [  218.048967][ T2554] ------------[ cut here ]------------
| [ 218.049273][ T2554] WARNING: CPU: 3 PID: 2554 at ./include/net/netdev_lock.h:17 netif_set_mtu_ext (./include/net/netdev_lock.h:17 ./include/net/netdev_lock.h:15 ./include/net/netdev_lock.h:25 net/core/dev.c:9610) 
| [  218.049881][ T2554] Modules linked in: sctp act_gact cls_flower sch_ingress vxlan ip6_gre gre [last unloaded: test_bpf]
| [  218.051143][ T2554] Tainted: [W]=WARN
[  218.051384][ T2554] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 218.051760][ T2554] RIP: 0010:netif_set_mtu_ext (./include/net/netdev_lock.h:17 ./include/net/netdev_lock.h:15 ./include/net/netdev_lock.h:25 net/core/dev.c:9610) 
[ 218.052088][ T2554] Code: 00 00 8b 05 77 04 bc 02 85 c0 0f 84 52 fe ff ff 48 8d bb c0 0c 00 00 be ff ff ff ff e8 da fc 9b 00 85 c0 0f 85 39 fe ff ff 90 <0f> 0b 90 e9 30 fe ff ff 48 b8 00 00 00 00 00 fc ff df 4c 89 fa 48
All code
========
   0:	00 00                	add    %al,(%rax)
   2:	8b 05 77 04 bc 02    	mov    0x2bc0477(%rip),%eax        # 0x2bc047f
   8:	85 c0                	test   %eax,%eax
   a:	0f 84 52 fe ff ff    	je     0xfffffffffffffe62
  10:	48 8d bb c0 0c 00 00 	lea    0xcc0(%rbx),%rdi
  17:	be ff ff ff ff       	mov    $0xffffffff,%esi
  1c:	e8 da fc 9b 00       	call   0x9bfcfb
  21:	85 c0                	test   %eax,%eax
  23:	0f 85 39 fe ff ff    	jne    0xfffffffffffffe62
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	e9 30 fe ff ff       	jmp    0xfffffffffffffe62
  32:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
  39:	fc ff df 
  3c:	4c 89 fa             	mov    %r15,%rdx
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	e9 30 fe ff ff       	jmp    0xfffffffffffffe38
   8:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
   f:	fc ff df 
  12:	4c 89 fa             	mov    %r15,%rdx
  15:	48                   	rex.W
[  218.053173][ T2554] RSP: 0018:ffffc9000441f080 EFLAGS: 00010246
[  218.053555][ T2554] RAX: 0000000000000000 RBX: ffff88800e052000 RCX: 0000000000000001
[  218.054022][ T2554] RDX: 0000000000000000 RSI: ffffffff93510751 RDI: ffffffff92c58280
[  218.054474][ T2554] RBP: ffffc9000441f168 R08: 0000000000000000 R09: 0000000000000000
[  218.054922][ T2554] R10: ffffc9000441f198 R11: ffffffff93f8d1e0 R12: 1ffff92000883e14
[  218.055391][ T2554] R13: 00000000000005dc R14: ffffc9000441f198 R15: ffff88800e052f48
[  218.055858][ T2554] FS:  00007f3eabef8800(0000) GS:ffff8880d7519000(0000) knlGS:0000000000000000
[  218.056397][ T2554] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  218.056777][ T2554] CR2: 00007f3eac0e3ba0 CR3: 0000000013886004 CR4: 0000000000772ef0
[  218.057236][ T2554] PKRU: 55555554
[  218.057461][ T2554] Call Trace:
[  218.057684][ T2554]  <TASK>
[ 218.057839][ T2554] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 218.058154][ T2554] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 218.058469][ T2554] netif_set_mtu (net/core/dev.c:9652) 
[ 218.058769][ T2554] ? __pfx_netif_set_mtu (net/core/dev.c:9647) 
[ 218.059101][ T2554] dev_set_mtu (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:47 net/core/dev_api.c:249) 
[ 218.059331][ T2554] br_mtu_auto_adjust (net/bridge/br_if.c:525) 
[ 218.059634][ T2554] br_add_if (net/bridge/br_if.c:697) 
[ 218.059872][ T2554] do_set_master (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:41 net/core/rtnetlink.c:2949) 
[ 218.060178][ T2554] ? rtnl_configure_link (net/core/rtnetlink.c:3592) 
[ 218.060488][ T2554] rtnl_newlink_create (net/core/rtnetlink.c:3840) 
[ 218.060791][ T2554] ? __pfx_rtnl_newlink_create (net/core/rtnetlink.c:3791) 
[ 218.061096][ T2554] ? __dev_get_by_name (net/core/dev.c:865) 
[ 218.061409][ T2554] ? rtnl_dev_get (net/core/rtnetlink.c:3404) 
[ 218.061707][ T2554] ? __pfx_rtnl_dev_get (net/core/rtnetlink.c:3404) 
[ 218.062020][ T2554] ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4056) 
[ 218.062319][ T2554] ? reacquire_held_locks (kernel/locking/lockdep.c:5388) 
[ 218.062629][ T2554] __rtnl_newlink (net/core/rtnetlink.c:3942) 
[ 218.062958][ T2554] rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4058) 
[ 218.063274][ T2554] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 218.063588][ T2554] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/rtnetlink.c:6944) 
[ 218.063885][ T2554] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 218.064194][ T2554] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 218.064494][ T2554] rtnetlink_rcv_msg (net/core/rtnetlink.c:6946) 
[ 218.064795][ T2554] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 218.065115][ T2554] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 218.065421][ T2554] netlink_rcv_skb (net/netlink/af_netlink.c:2551) 
[ 218.065722][ T2554] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 218.066032][ T2554] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2528) 
[ 218.066344][ T2554] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/netlink/af_netlink.c:340) 
[ 218.066644][ T2554] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 ./include/net/netns/generic.h:48 net/netlink/af_netlink.c:333) 
[ 218.066968][ T2554] netlink_unicast (net/netlink/af_netlink.c:1321 net/netlink/af_netlink.c:1346) 
[ 218.067278][ T2554] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1331) 
[ 218.067579][ T2554] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 218.067886][ T2554] netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 218.068204][ T2554] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1815) 
[ 218.068508][ T2554] ? __import_iovec (lib/iov_iter.c:1441 lib/iov_iter.c:1456) 
[ 218.068817][ T2554] ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 218.069127][ T2554] ? __pfx_____sys_sendmsg (net/socket.c:2560) 
[ 218.069432][ T2554] ? __pfx_copy_msghdr_from_user (net/socket.c:2540) 
[ 218.069820][ T2554] ___sys_sendmsg (net/socket.c:2670) 
[ 218.070129][ T2554] ? __pfx____sys_sendmsg (net/socket.c:2657) 
[ 218.070438][ T2554] ? rcu_read_lock_any_held (kernel/rcu/update.c:386 kernel/rcu/update.c:380) 
[ 218.070744][ T2554] ? rcu_read_lock_any_held (kernel/rcu/update.c:386 kernel/rcu/update.c:380) 
[ 218.071058][ T2554] ? validate_chain (kernel/locking/lockdep.c:3804 kernel/locking/lockdep.c:3824 kernel/locking/lockdep.c:3879) 
[ 218.071384][ T2554] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 218.071700][ T2554] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 218.072015][ T2554] __sys_sendmsg (net/socket.c:2700) 
[ 218.072316][ T2554] ? __pfx___sys_sendmsg (net/socket.c:2685) 
[ 218.072630][ T2554] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 218.072934][ T2554] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 218.073249][ T2554] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[  218.073622][ T2554] RIP: 0033:0x7f3eac0c51e7
[ 218.073952][ T2554] Code: 0e 00 f7 d8 64 89 02 48 c7 c0 ff ff ff ff eb b9 0f 1f 00 f3 0f 1e fa 64 8b 04 25 18 00 00 00 85 c0 75 10 b8 2e 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 51 c3 48 83 ec 28 89 54 24 1c 48 89 74 24 10
All code
========
   0:	0e                   	(bad)
   1:	00 f7                	add    %dh,%bh
   3:	d8 64 89 02          	fsubs  0x2(%rcx,%rcx,4)
   7:	48 c7 c0 ff ff ff ff 	mov    $0xffffffffffffffff,%rax
   e:	eb b9                	jmp    0xffffffffffffffc9
  10:	0f 1f 00             	nopl   (%rax)
  13:	f3 0f 1e fa          	endbr64
  17:	64 8b 04 25 18 00 00 	mov    %fs:0x18,%eax
  1e:	00 
  1f:	85 c0                	test   %eax,%eax
  21:	75 10                	jne    0x33
  23:	b8 2e 00 00 00       	mov    $0x2e,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 00 f0 ff ff    	cmp    $0xfffffffffffff000,%rax		<-- trapping instruction
  30:	77 51                	ja     0x83
  32:	c3                   	ret
  33:	48 83 ec 28          	sub    $0x28,%rsp
  37:	89 54 24 1c          	mov    %edx,0x1c(%rsp)
  3b:	48 89 74 24 10       	mov    %rsi,0x10(%rsp)

Code starting with the faulting instruction
===========================================
   0:	48 3d 00 f0 ff ff    	cmp    $0xfffffffffffff000,%rax
   6:	77 51                	ja     0x59
   8:	c3                   	ret
   9:	48 83 ec 28          	sub    $0x28,%rsp
   d:	89 54 24 1c          	mov    %edx,0x1c(%rsp)
  11:	48 89 74 24 10       	mov    %rsi,0x10(%rsp)
[  218.075046][ T2554] RSP: 002b:00007ffde461b6a8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[  218.075506][ T2554] RAX: ffffffffffffffda RBX: 00007ffde461bde0 RCX: 00007f3eac0c51e7
[  218.075972][ T2554] RDX: 0000000000000000 RSI: 00007ffde461b710 RDI: 0000000000000005
[  218.076420][ T2554] RBP: 0000000000000006 R08: 0000000000000078 R09: 0000000000000000
[  218.076867][ T2554] R10: 00007f3eac153ac0 R11: 0000000000000246 R12: 00007ffde461be18
[  218.077326][ T2554] R13: 00000000686e792a R14: 0000000000499600 R15: 00007ffde461b800
| [  236.796001][ T2726] ------------[ cut here ]------------
| [ 236.796310][ T2726] WARNING: CPU: 0 PID: 2726 at ./include/net/netdev_lock.h:17 netif_set_mtu_ext (./include/net/netdev_lock.h:17 ./include/net/netdev_lock.h:15 ./include/net/netdev_lock.h:25 net/core/dev.c:9610) 
| [  236.796903][ T2726] Modules linked in: sctp act_gact cls_flower sch_ingress vxlan ip6_gre gre [last unloaded: test_bpf]
| [  236.798166][ T2726] Tainted: [W]=WARN
[  236.798406][ T2726] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 236.798786][ T2726] RIP: 0010:netif_set_mtu_ext (./include/net/netdev_lock.h:17 ./include/net/netdev_lock.h:15 ./include/net/netdev_lock.h:25 net/core/dev.c:9610) 
[ 236.799114][ T2726] Code: 00 00 8b 05 77 04 bc 02 85 c0 0f 84 52 fe ff ff 48 8d bb c0 0c 00 00 be ff ff ff ff e8 da fc 9b 00 85 c0 0f 85 39 fe ff ff 90 <0f> 0b 90 e9 30 fe ff ff 48 b8 00 00 00 00 00 fc ff df 4c 89 fa 48
All code
========
   0:	00 00                	add    %al,(%rax)
   2:	8b 05 77 04 bc 02    	mov    0x2bc0477(%rip),%eax        # 0x2bc047f
   8:	85 c0                	test   %eax,%eax
   a:	0f 84 52 fe ff ff    	je     0xfffffffffffffe62
  10:	48 8d bb c0 0c 00 00 	lea    0xcc0(%rbx),%rdi
  17:	be ff ff ff ff       	mov    $0xffffffff,%esi
  1c:	e8 da fc 9b 00       	call   0x9bfcfb
  21:	85 c0                	test   %eax,%eax
  23:	0f 85 39 fe ff ff    	jne    0xfffffffffffffe62
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	e9 30 fe ff ff       	jmp    0xfffffffffffffe62
  32:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
  39:	fc ff df 
  3c:	4c 89 fa             	mov    %r15,%rdx
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	e9 30 fe ff ff       	jmp    0xfffffffffffffe38
   8:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
   f:	fc ff df 
  12:	4c 89 fa             	mov    %r15,%rdx
  15:	48                   	rex.W
[  236.800195][ T2726] RSP: 0018:ffffc90004a4f080 EFLAGS: 00010246
[  236.800577][ T2726] RAX: 0000000000000000 RBX: ffff88800dc9a000 RCX: 0000000000000001
[  236.801042][ T2726] RDX: 0000000000000000 RSI: ffffffff93510751 RDI: ffffffff92c58280
[  236.801499][ T2726] RBP: ffffc90004a4f168 R08: 0000000000000000 R09: 0000000000000000
[  236.801970][ T2726] R10: ffffc90004a4f198 R11: ffffffff93f8d1e0 R12: 1ffff92000949e14
[  236.802422][ T2726] R13: 00000000000005dc R14: ffffc90004a4f198 R15: ffff88800dc9af48
[  236.802876][ T2726] FS:  00007f2c13887800(0000) GS:ffff8880d7399000(0000) knlGS:0000000000000000
[  236.803413][ T2726] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  236.803791][ T2726] CR2: 000000000043d940 CR3: 0000000013988003 CR4: 0000000000772ef0
[  236.804253][ T2726] PKRU: 55555554
[  236.804480][ T2726] Call Trace:
[  236.804705][ T2726]  <TASK>
[ 236.804861][ T2726] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 236.805175][ T2726] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 236.805489][ T2726] netif_set_mtu (net/core/dev.c:9652) 
[ 236.805790][ T2726] ? __pfx_netif_set_mtu (net/core/dev.c:9647) 
[ 236.806124][ T2726] dev_set_mtu (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:47 net/core/dev_api.c:249) 
[ 236.806356][ T2726] br_mtu_auto_adjust (net/bridge/br_if.c:525) 
[ 236.806660][ T2726] br_add_if (net/bridge/br_if.c:697) 
[ 236.806898][ T2726] do_set_master (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:41 net/core/rtnetlink.c:2949) 
[ 236.807206][ T2726] ? rtnl_configure_link (net/core/rtnetlink.c:3592) 
[ 236.807515][ T2726] rtnl_newlink_create (net/core/rtnetlink.c:3840) 
[ 236.807820][ T2726] ? __pfx_rtnl_newlink_create (net/core/rtnetlink.c:3791) 
[ 236.808125][ T2726] ? __dev_get_by_name (net/core/dev.c:865) 
[ 236.808493][ T2726] ? rtnl_dev_get (net/core/rtnetlink.c:3404) 
[ 236.808795][ T2726] ? __pfx_rtnl_dev_get (net/core/rtnetlink.c:3404) 
[ 236.809112][ T2726] ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4056) 
[ 236.809412][ T2726] ? reacquire_held_locks (kernel/locking/lockdep.c:5388) 
[ 236.809726][ T2726] __rtnl_newlink (net/core/rtnetlink.c:3942) 
[ 236.810055][ T2726] rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4058) 
[ 236.810367][ T2726] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 236.810679][ T2726] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/rtnetlink.c:6944) 
[ 236.810987][ T2726] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 236.811297][ T2726] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 236.811598][ T2726] rtnetlink_rcv_msg (net/core/rtnetlink.c:6946) 
[ 236.811900][ T2726] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 236.812218][ T2726] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 236.812525][ T2726] netlink_rcv_skb (net/netlink/af_netlink.c:2551) 
[ 236.812826][ T2726] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 236.813137][ T2726] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2528) 
[ 236.813451][ T2726] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/netlink/af_netlink.c:340) 
[ 236.813750][ T2726] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 ./include/net/netns/generic.h:48 net/netlink/af_netlink.c:333) 
[ 236.814073][ T2726] netlink_unicast (net/netlink/af_netlink.c:1321 net/netlink/af_netlink.c:1346) 
[ 236.814381][ T2726] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1331) 
[ 236.814681][ T2726] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 236.814994][ T2726] netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 236.815303][ T2726] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1815) 
[ 236.815606][ T2726] ? __import_iovec (lib/iov_iter.c:1441 lib/iov_iter.c:1456) 
[ 236.815913][ T2726] ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 236.816226][ T2726] ? __pfx_____sys_sendmsg (net/socket.c:2560) 
[ 236.816530][ T2726] ? __pfx_copy_msghdr_from_user (net/socket.c:2540) 
[ 236.816922][ T2726] ___sys_sendmsg (net/socket.c:2670) 
[ 236.817234][ T2726] ? __pfx____sys_sendmsg (net/socket.c:2657) 
[ 236.817534][ T2726] ? __pfx_handle_pte_fault (mm/memory.c:6026) 
[ 236.817837][ T2726] ? reacquire_held_locks (kernel/locking/lockdep.c:5388) 
[ 236.818152][ T2726] ? do_user_addr_fault (arch/x86/mm/fault.c:1327) 
[ 236.818469][ T2726] ? __handle_mm_fault (mm/memory.c:6212) 
[ 236.818770][ T2726] ? __pfx___handle_mm_fault (mm/memory.c:6121) 
[ 236.819078][ T2726] ? lock_vma_under_rcu (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 mm/mmap_lock.c:171) 
[ 236.819400][ T2726] __sys_sendmsg (net/socket.c:2700) 
[ 236.819702][ T2726] ? __pfx___sys_sendmsg (net/socket.c:2685) 
[ 236.820013][ T2726] ? exc_page_fault (./arch/x86/include/asm/irqflags.h:26 ./arch/x86/include/asm/irqflags.h:109 ./arch/x86/include/asm/irqflags.h:151 arch/x86/mm/fault.c:1484 arch/x86/mm/fault.c:1532) 
[ 236.820327][ T2726] ? do_user_addr_fault (./arch/x86/include/asm/atomic.h:93 ./include/linux/atomic/atomic-arch-fallback.h:949 ./include/linux/atomic/atomic-instrumented.h:401 ./include/linux/refcount.h:389 ./include/linux/refcount.h:432 ./include/linux/mmap_lock.h:142 ./include/linux/mmap_lock.h:237 arch/x86/mm/fault.c:1338) 
[ 236.820632][ T2726] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 236.820936][ T2726] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 236.821252][ T2726] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[  236.821631][ T2726] RIP: 0033:0x7f2c13a541e7
[ 236.821977][ T2726] Code: 0e 00 f7 d8 64 89 02 48 c7 c0 ff ff ff ff eb b9 0f 1f 00 f3 0f 1e fa 64 8b 04 25 18 00 00 00 85 c0 75 10 b8 2e 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 51 c3 48 83 ec 28 89 54 24 1c 48 89 74 24 10
All code
========
   0:	0e                   	(bad)
   1:	00 f7                	add    %dh,%bh
   3:	d8 64 89 02          	fsubs  0x2(%rcx,%rcx,4)
   7:	48 c7 c0 ff ff ff ff 	mov    $0xffffffffffffffff,%rax
   e:	eb b9                	jmp    0xffffffffffffffc9
  10:	0f 1f 00             	nopl   (%rax)
  13:	f3 0f 1e fa          	endbr64
  17:	64 8b 04 25 18 00 00 	mov    %fs:0x18,%eax
  1e:	00 
  1f:	85 c0                	test   %eax,%eax
  21:	75 10                	jne    0x33
  23:	b8 2e 00 00 00       	mov    $0x2e,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 00 f0 ff ff    	cmp    $0xfffffffffffff000,%rax		<-- trapping instruction
  30:	77 51                	ja     0x83
  32:	c3                   	ret
  33:	48 83 ec 28          	sub    $0x28,%rsp
  37:	89 54 24 1c          	mov    %edx,0x1c(%rsp)
  3b:	48 89 74 24 10       	mov    %rsi,0x10(%rsp)

Code starting with the faulting instruction
===========================================
   0:	48 3d 00 f0 ff ff    	cmp    $0xfffffffffffff000,%rax
   6:	77 51                	ja     0x59
   8:	c3                   	ret
   9:	48 83 ec 28          	sub    $0x28,%rsp
   d:	89 54 24 1c          	mov    %edx,0x1c(%rsp)
  11:	48 89 74 24 10       	mov    %rsi,0x10(%rsp)
[  236.823065][ T2726] RSP: 002b:00007ffc84e90ee8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[  236.823525][ T2726] RAX: ffffffffffffffda RBX: 00007ffc84e91620 RCX: 00007f2c13a541e7
[  236.823983][ T2726] RDX: 0000000000000000 RSI: 00007ffc84e90f50 RDI: 0000000000000005
[  236.824434][ T2726] RBP: 0000000000000006 R08: 000000000000006c R09: 0000000000000000
[  236.824886][ T2726] R10: 00007f2c13ae2ac0 R11: 0000000000000246 R12: 00007ffc84e91658
[  236.825353][ T2726] R13: 00000000686e793d R14: 0000000000499600 R15: 00007ffc84e91040
| [  240.772567][ T2756] ------------[ cut here ]------------
| [ 240.772875][ T2756] WARNING: CPU: 0 PID: 2756 at ./include/net/netdev_lock.h:17 netif_set_mtu_ext (./include/net/netdev_lock.h:17 ./include/net/netdev_lock.h:15 ./include/net/netdev_lock.h:25 net/core/dev.c:9610) 
| [  240.773485][ T2756] Modules linked in: sctp act_gact cls_flower sch_ingress vxlan ip6_gre gre [last unloaded: test_bpf]
| [  240.774738][ T2756] Tainted: [W]=WARN
[  240.774989][ T2756] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 240.775371][ T2756] RIP: 0010:netif_set_mtu_ext (./include/net/netdev_lock.h:17 ./include/net/netdev_lock.h:15 ./include/net/netdev_lock.h:25 net/core/dev.c:9610) 
[ 240.775684][ T2756] Code: 00 00 8b 05 77 04 bc 02 85 c0 0f 84 52 fe ff ff 48 8d bb c0 0c 00 00 be ff ff ff ff e8 da fc 9b 00 85 c0 0f 85 39 fe ff ff 90 <0f> 0b 90 e9 30 fe ff ff 48 b8 00 00 00 00 00 fc ff df 4c 89 fa 48
All code
========
   0:	00 00                	add    %al,(%rax)
   2:	8b 05 77 04 bc 02    	mov    0x2bc0477(%rip),%eax        # 0x2bc047f
   8:	85 c0                	test   %eax,%eax
   a:	0f 84 52 fe ff ff    	je     0xfffffffffffffe62
  10:	48 8d bb c0 0c 00 00 	lea    0xcc0(%rbx),%rdi
  17:	be ff ff ff ff       	mov    $0xffffffff,%esi
  1c:	e8 da fc 9b 00       	call   0x9bfcfb
  21:	85 c0                	test   %eax,%eax
  23:	0f 85 39 fe ff ff    	jne    0xfffffffffffffe62
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	e9 30 fe ff ff       	jmp    0xfffffffffffffe62
  32:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
  39:	fc ff df 
  3c:	4c 89 fa             	mov    %r15,%rdx
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	e9 30 fe ff ff       	jmp    0xfffffffffffffe38
   8:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
   f:	fc ff df 
  12:	4c 89 fa             	mov    %r15,%rdx
  15:	48                   	rex.W
[  240.776803][ T2756] RSP: 0018:ffffc90004b6f080 EFLAGS: 00010246
[  240.777194][ T2756] RAX: 0000000000000000 RBX: ffff88801395a000 RCX: 0000000000000001
[  240.777650][ T2756] RDX: 0000000000000000 RSI: ffffffff93510751 RDI: ffffffff92c58280
[  240.778121][ T2756] RBP: ffffc90004b6f168 R08: 0000000000000000 R09: 0000000000000000
[  240.778573][ T2756] R10: ffffc90004b6f198 R11: ffffffff93f8d1e0 R12: 1ffff9200096de14
[  240.779043][ T2756] R13: 00000000000005dc R14: ffffc90004b6f198 R15: ffff88801395af48
[  240.779503][ T2756] FS:  00007fe86304f800(0000) GS:ffff8880d7399000(0000) knlGS:0000000000000000
[  240.780046][ T2756] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  240.780426][ T2756] CR2: 0000558283d6b428 CR3: 00000000125dd003 CR4: 0000000000772ef0
[  240.780879][ T2756] PKRU: 55555554
[  240.781114][ T2756] Call Trace:
[  240.781349][ T2756]  <TASK>
[ 240.781505][ T2756] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 240.781808][ T2756] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 240.782135][ T2756] netif_set_mtu (net/core/dev.c:9652) 
[ 240.782437][ T2756] ? __pfx_netif_set_mtu (net/core/dev.c:9647) 
[ 240.782751][ T2756] dev_set_mtu (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:47 net/core/dev_api.c:249) 
[ 240.782998][ T2756] br_mtu_auto_adjust (net/bridge/br_if.c:525) 
[ 240.783307][ T2756] br_add_if (net/bridge/br_if.c:697) 
[ 240.783545][ T2756] do_set_master (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:41 net/core/rtnetlink.c:2949) 
[ 240.783842][ T2756] ? rtnl_configure_link (net/core/rtnetlink.c:3592) 
[ 240.784160][ T2756] rtnl_newlink_create (net/core/rtnetlink.c:3840) 
[ 240.784468][ T2756] ? __pfx_rtnl_newlink_create (net/core/rtnetlink.c:3791) 
[ 240.784767][ T2756] ? __dev_get_by_name (net/core/dev.c:865) 
[ 240.785078][ T2756] ? rtnl_dev_get (net/core/rtnetlink.c:3404) 
[ 240.785378][ T2756] ? __pfx_rtnl_dev_get (net/core/rtnetlink.c:3404) 
[ 240.785683][ T2756] ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4056) 
[ 240.785990][ T2756] ? reacquire_held_locks (kernel/locking/lockdep.c:5388) 
[ 240.786295][ T2756] __rtnl_newlink (net/core/rtnetlink.c:3942) 
[ 240.786610][ T2756] rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4058) 
[ 240.786918][ T2756] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 240.787434][ T2756] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/rtnetlink.c:6944) 
[ 240.787738][ T2756] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 240.788056][ T2756] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 240.788362][ T2756] rtnetlink_rcv_msg (net/core/rtnetlink.c:6946) 
[ 240.788665][ T2756] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 240.788982][ T2756] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 240.789288][ T2756] netlink_rcv_skb (net/netlink/af_netlink.c:2551) 
[ 240.789587][ T2756] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 240.789891][ T2756] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2528) 
[ 240.790210][ T2756] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/netlink/af_netlink.c:340) 
[ 240.790508][ T2756] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 ./include/net/netns/generic.h:48 net/netlink/af_netlink.c:333) 
[ 240.790810][ T2756] netlink_unicast (net/netlink/af_netlink.c:1321 net/netlink/af_netlink.c:1346) 
[ 240.791136][ T2756] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1331) 
[ 240.791443][ T2756] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 240.791751][ T2756] netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 240.792069][ T2756] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1815) 
[ 240.792372][ T2756] ? __import_iovec (lib/iov_iter.c:1441 lib/iov_iter.c:1456) 
[ 240.792679][ T2756] ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 240.792995][ T2756] ? __pfx_____sys_sendmsg (net/socket.c:2560) 
[ 240.793296][ T2756] ? __pfx_copy_msghdr_from_user (net/socket.c:2540) 
[ 240.793691][ T2756] ___sys_sendmsg (net/socket.c:2670) 
[ 240.794003][ T2756] ? __pfx____sys_sendmsg (net/socket.c:2657) 
[ 240.794303][ T2756] ? __pfx_handle_pte_fault (mm/memory.c:6026) 
[ 240.794606][ T2756] ? reacquire_held_locks (kernel/locking/lockdep.c:5388) 
[ 240.794905][ T2756] ? do_user_addr_fault (arch/x86/mm/fault.c:1327) 
[ 240.795226][ T2756] ? __handle_mm_fault (mm/memory.c:6212) 
[ 240.795535][ T2756] ? __pfx___handle_mm_fault (mm/memory.c:6121) 
[ 240.795833][ T2756] ? lock_vma_under_rcu (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 mm/mmap_lock.c:171) 
[ 240.796165][ T2756] __sys_sendmsg (net/socket.c:2700) 
[ 240.796466][ T2756] ? __pfx___sys_sendmsg (net/socket.c:2685) 
[ 240.796766][ T2756] ? exc_page_fault (./arch/x86/include/asm/irqflags.h:26 ./arch/x86/include/asm/irqflags.h:109 ./arch/x86/include/asm/irqflags.h:151 arch/x86/mm/fault.c:1484 arch/x86/mm/fault.c:1532) 
[ 240.797085][ T2756] ? do_user_addr_fault (./arch/x86/include/asm/atomic.h:93 ./include/linux/atomic/atomic-arch-fallback.h:949 ./include/linux/atomic/atomic-instrumented.h:401 ./include/linux/refcount.h:389 ./include/linux/refcount.h:432 ./include/linux/mmap_lock.h:142 ./include/linux/mmap_lock.h:237 arch/x86/mm/fault.c:1338) 
[ 240.797387][ T2756] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 240.797696][ T2756] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 240.798014][ T2756] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[  240.798387][ T2756] RIP: 0033:0x7fe86321c1e7
[ 240.798697][ T2756] Code: 0e 00 f7 d8 64 89 02 48 c7 c0 ff ff ff ff eb b9 0f 1f 00 f3 0f 1e fa 64 8b 04 25 18 00 00 00 85 c0 75 10 b8 2e 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 51 c3 48 83 ec 28 89 54 24 1c 48 89 74 24 10
All code
========
   0:	0e                   	(bad)
   1:	00 f7                	add    %dh,%bh
   3:	d8 64 89 02          	fsubs  0x2(%rcx,%rcx,4)
   7:	48 c7 c0 ff ff ff ff 	mov    $0xffffffffffffffff,%rax
   e:	eb b9                	jmp    0xffffffffffffffc9
  10:	0f 1f 00             	nopl   (%rax)
  13:	f3 0f 1e fa          	endbr64
  17:	64 8b 04 25 18 00 00 	mov    %fs:0x18,%eax
  1e:	00 
  1f:	85 c0                	test   %eax,%eax
  21:	75 10                	jne    0x33
  23:	b8 2e 00 00 00       	mov    $0x2e,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 00 f0 ff ff    	cmp    $0xfffffffffffff000,%rax		<-- trapping instruction
  30:	77 51                	ja     0x83
  32:	c3                   	ret
  33:	48 83 ec 28          	sub    $0x28,%rsp
  37:	89 54 24 1c          	mov    %edx,0x1c(%rsp)
  3b:	48 89 74 24 10       	mov    %rsi,0x10(%rsp)

Code starting with the faulting instruction
===========================================
   0:	48 3d 00 f0 ff ff    	cmp    $0xfffffffffffff000,%rax
   6:	77 51                	ja     0x59
   8:	c3                   	ret
   9:	48 83 ec 28          	sub    $0x28,%rsp
   d:	89 54 24 1c          	mov    %edx,0x1c(%rsp)
  11:	48 89 74 24 10       	mov    %rsi,0x10(%rsp)
[  240.799790][ T2756] RSP: 002b:00007ffefc39c448 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[  240.800267][ T2756] RAX: ffffffffffffffda RBX: 00007ffefc39cb80 RCX: 00007fe86321c1e7
[  240.800718][ T2756] RDX: 0000000000000000 RSI: 00007ffefc39c4b0 RDI: 0000000000000005
[  240.801176][ T2756] RBP: 0000000000000006 R08: 000000000000006c R09: 0000000000000000
[  240.801633][ T2756] R10: 00007fe8632aaac0 R11: 0000000000000246 R12: 00007ffefc39cbb8
[  240.802099][ T2756] R13: 00000000686e7941 R14: 0000000000499600 R15: 00007ffefc39c5a0
| [  247.559817][ T2822] ------------[ cut here ]------------
| [ 247.560137][ T2822] WARNING: CPU: 1 PID: 2822 at ./include/net/netdev_lock.h:17 netif_set_mtu_ext (./include/net/netdev_lock.h:17 ./include/net/netdev_lock.h:15 ./include/net/netdev_lock.h:25 net/core/dev.c:9610) 
| [  247.560748][ T2822] Modules linked in: sctp act_gact cls_flower sch_ingress vxlan ip6_gre gre [last unloaded: test_bpf]
| [  247.562011][ T2822] Tainted: [W]=WARN
[  247.562240][ T2822] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 247.562621][ T2822] RIP: 0010:netif_set_mtu_ext (./include/net/netdev_lock.h:17 ./include/net/netdev_lock.h:15 ./include/net/netdev_lock.h:25 net/core/dev.c:9610) 
[ 247.562935][ T2822] Code: 00 00 8b 05 77 04 bc 02 85 c0 0f 84 52 fe ff ff 48 8d bb c0 0c 00 00 be ff ff ff ff e8 da fc 9b 00 85 c0 0f 85 39 fe ff ff 90 <0f> 0b 90 e9 30 fe ff ff 48 b8 00 00 00 00 00 fc ff df 4c 89 fa 48
All code
========
   0:	00 00                	add    %al,(%rax)
   2:	8b 05 77 04 bc 02    	mov    0x2bc0477(%rip),%eax        # 0x2bc047f
   8:	85 c0                	test   %eax,%eax
   a:	0f 84 52 fe ff ff    	je     0xfffffffffffffe62
  10:	48 8d bb c0 0c 00 00 	lea    0xcc0(%rbx),%rdi
  17:	be ff ff ff ff       	mov    $0xffffffff,%esi
  1c:	e8 da fc 9b 00       	call   0x9bfcfb
  21:	85 c0                	test   %eax,%eax
  23:	0f 85 39 fe ff ff    	jne    0xfffffffffffffe62
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	e9 30 fe ff ff       	jmp    0xfffffffffffffe62
  32:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
  39:	fc ff df 
  3c:	4c 89 fa             	mov    %r15,%rdx
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	e9 30 fe ff ff       	jmp    0xfffffffffffffe38
   8:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
   f:	fc ff df 
  12:	4c 89 fa             	mov    %r15,%rdx
  15:	48                   	rex.W
[  247.564027][ T2822] RSP: 0018:ffffc90004e1f080 EFLAGS: 00010246
[  247.564407][ T2822] RAX: 0000000000000000 RBX: ffff88800ef8a000 RCX: 0000000000000001
[  247.564863][ T2822] RDX: 0000000000000000 RSI: ffffffff93510751 RDI: ffffffff92c58280
[  247.565333][ T2822] RBP: ffffc90004e1f168 R08: 0000000000000000 R09: 0000000000000000
[  247.565794][ T2822] R10: ffffc90004e1f198 R11: ffffffff93f8d1e0 R12: 1ffff920009c3e14
[  247.566254][ T2822] R13: 00000000000005dc R14: ffffc90004e1f198 R15: ffff88800ef8af48
[  247.566710][ T2822] FS:  00007f73e44d4800(0000) GS:ffff8880d7419000(0000) knlGS:0000000000000000
[  247.567247][ T2822] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  247.567627][ T2822] CR2: 00007f73e46bfba0 CR3: 0000000009d1a002 CR4: 0000000000772ef0
[  247.568088][ T2822] PKRU: 55555554
[  247.568315][ T2822] Call Trace:
[  247.568539][ T2822]  <TASK>
[ 247.568701][ T2822] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 247.569021][ T2822] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 247.569338][ T2822] netif_set_mtu (net/core/dev.c:9652) 
[ 247.569637][ T2822] ? __pfx_netif_set_mtu (net/core/dev.c:9647) 
[ 247.569964][ T2822] dev_set_mtu (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:47 net/core/dev_api.c:249) 
[ 247.570195][ T2822] br_mtu_auto_adjust (net/bridge/br_if.c:525) 
[ 247.570500][ T2822] br_add_if (net/bridge/br_if.c:697) 
[ 247.570737][ T2822] do_set_master (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:41 net/core/rtnetlink.c:2949) 
[ 247.571073][ T2822] ? rtnl_configure_link (net/core/rtnetlink.c:3592) 
[ 247.571385][ T2822] rtnl_newlink_create (net/core/rtnetlink.c:3840) 
[ 247.571690][ T2822] ? __pfx_rtnl_newlink_create (net/core/rtnetlink.c:3791) 
[ 247.572002][ T2822] ? __dev_get_by_name (net/core/dev.c:865) 
[ 247.572304][ T2822] ? rtnl_dev_get (net/core/rtnetlink.c:3404) 
[ 247.572604][ T2822] ? __pfx_rtnl_dev_get (net/core/rtnetlink.c:3404) 
[ 247.572908][ T2822] ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4056) 
[ 247.573226][ T2822] ? reacquire_held_locks (kernel/locking/lockdep.c:5388) 
[ 247.573534][ T2822] __rtnl_newlink (net/core/rtnetlink.c:3942) 
[ 247.573844][ T2822] rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4058) 
[ 247.574158][ T2822] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 247.574471][ T2822] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/rtnetlink.c:6944) 
[ 247.574770][ T2822] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 247.575082][ T2822] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 247.575382][ T2822] rtnetlink_rcv_msg (net/core/rtnetlink.c:6946) 
[ 247.575688][ T2822] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 247.576006][ T2822] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 247.576317][ T2822] netlink_rcv_skb (net/netlink/af_netlink.c:2551) 
[ 247.576620][ T2822] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 247.576921][ T2822] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2528) 
[ 247.577250][ T2822] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/netlink/af_netlink.c:340) 
[ 247.577552][ T2822] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 ./include/net/netns/generic.h:48 net/netlink/af_netlink.c:333) 
[ 247.577861][ T2822] netlink_unicast (net/netlink/af_netlink.c:1321 net/netlink/af_netlink.c:1346) 
[ 247.578172][ T2822] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1331) 
[ 247.578473][ T2822] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 247.578780][ T2822] netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 247.579092][ T2822] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1815) 
[ 247.579397][ T2822] ? __import_iovec (lib/iov_iter.c:1441 lib/iov_iter.c:1456) 
[ 247.579705][ T2822] ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 247.580022][ T2822] ? __pfx_____sys_sendmsg (net/socket.c:2560) 
[ 247.580328][ T2822] ? __pfx_copy_msghdr_from_user (net/socket.c:2540) 
[ 247.580715][ T2822] ___sys_sendmsg (net/socket.c:2670) 
[ 247.581038][ T2822] ? __pfx____sys_sendmsg (net/socket.c:2657) 
[ 247.581357][ T2822] ? rcu_read_lock_any_held (kernel/rcu/update.c:386 kernel/rcu/update.c:380) 
[ 247.581662][ T2822] ? rcu_read_lock_any_held (kernel/rcu/update.c:386 kernel/rcu/update.c:380) 
[ 247.581971][ T2822] ? validate_chain (kernel/locking/lockdep.c:3804 kernel/locking/lockdep.c:3824 kernel/locking/lockdep.c:3879) 
[ 247.582282][ T2822] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 247.582593][ T2822] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 247.582898][ T2822] __sys_sendmsg (net/socket.c:2700) 
[ 247.583208][ T2822] ? __pfx___sys_sendmsg (net/socket.c:2685) 
[ 247.583524][ T2822] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 247.583830][ T2822] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 247.584143][ T2822] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[  247.584522][ T2822] RIP: 0033:0x7f73e46a11e7
[ 247.584841][ T2822] Code: 0e 00 f7 d8 64 89 02 48 c7 c0 ff ff ff ff eb b9 0f 1f 00 f3 0f 1e fa 64 8b 04 25 18 00 00 00 85 c0 75 10 b8 2e 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 51 c3 48 83 ec 28 89 54 24 1c 48 89 74 24 10
All code
========
   0:	0e                   	(bad)
   1:	00 f7                	add    %dh,%bh
   3:	d8 64 89 02          	fsubs  0x2(%rcx,%rcx,4)
   7:	48 c7 c0 ff ff ff ff 	mov    $0xffffffffffffffff,%rax
   e:	eb b9                	jmp    0xffffffffffffffc9
  10:	0f 1f 00             	nopl   (%rax)
  13:	f3 0f 1e fa          	endbr64
  17:	64 8b 04 25 18 00 00 	mov    %fs:0x18,%eax
  1e:	00 
  1f:	85 c0                	test   %eax,%eax
  21:	75 10                	jne    0x33
  23:	b8 2e 00 00 00       	mov    $0x2e,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 00 f0 ff ff    	cmp    $0xfffffffffffff000,%rax		<-- trapping instruction
  30:	77 51                	ja     0x83
  32:	c3                   	ret
  33:	48 83 ec 28          	sub    $0x28,%rsp
  37:	89 54 24 1c          	mov    %edx,0x1c(%rsp)
  3b:	48 89 74 24 10       	mov    %rsi,0x10(%rsp)

Code starting with the faulting instruction
===========================================
   0:	48 3d 00 f0 ff ff    	cmp    $0xfffffffffffff000,%rax
   6:	77 51                	ja     0x59
   8:	c3                   	ret
   9:	48 83 ec 28          	sub    $0x28,%rsp
   d:	89 54 24 1c          	mov    %edx,0x1c(%rsp)
  11:	48 89 74 24 10       	mov    %rsi,0x10(%rsp)
[  247.585937][ T2822] RSP: 002b:00007fff6aa78bd8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[  247.586407][ T2822] RAX: ffffffffffffffda RBX: 00007fff6aa79310 RCX: 00007f73e46a11e7
[  247.586863][ T2822] RDX: 0000000000000000 RSI: 00007fff6aa78c40 RDI: 0000000000000005
[  247.587320][ T2822] RBP: 0000000000000006 R08: 0000000000000078 R09: 0000000000000000
[  247.587770][ T2822] R10: 00007f73e472fac0 R11: 0000000000000246 R12: 00007fff6aa79348
[  247.588234][ T2822] R13: 00000000686e7948 R14: 0000000000499600 R15: 00007fff6aa78d30
| [  251.461729][ T2852] ------------[ cut here ]------------
| [ 251.462047][ T2852] WARNING: CPU: 0 PID: 2852 at ./include/net/netdev_lock.h:17 netif_set_mtu_ext (./include/net/netdev_lock.h:17 ./include/net/netdev_lock.h:15 ./include/net/netdev_lock.h:25 net/core/dev.c:9610) 
| [  251.462641][ T2852] Modules linked in: sctp act_gact cls_flower sch_ingress vxlan ip6_gre gre [last unloaded: test_bpf]
| [  251.463887][ T2852] Tainted: [W]=WARN
[  251.464126][ T2852] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 251.464508][ T2852] RIP: 0010:netif_set_mtu_ext (./include/net/netdev_lock.h:17 ./include/net/netdev_lock.h:15 ./include/net/netdev_lock.h:25 net/core/dev.c:9610) 
[ 251.464818][ T2852] Code: 00 00 8b 05 77 04 bc 02 85 c0 0f 84 52 fe ff ff 48 8d bb c0 0c 00 00 be ff ff ff ff e8 da fc 9b 00 85 c0 0f 85 39 fe ff ff 90 <0f> 0b 90 e9 30 fe ff ff 48 b8 00 00 00 00 00 fc ff df 4c 89 fa 48
All code
========
   0:	00 00                	add    %al,(%rax)
   2:	8b 05 77 04 bc 02    	mov    0x2bc0477(%rip),%eax        # 0x2bc047f
   8:	85 c0                	test   %eax,%eax
   a:	0f 84 52 fe ff ff    	je     0xfffffffffffffe62
  10:	48 8d bb c0 0c 00 00 	lea    0xcc0(%rbx),%rdi
  17:	be ff ff ff ff       	mov    $0xffffffff,%esi
  1c:	e8 da fc 9b 00       	call   0x9bfcfb
  21:	85 c0                	test   %eax,%eax
  23:	0f 85 39 fe ff ff    	jne    0xfffffffffffffe62
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	e9 30 fe ff ff       	jmp    0xfffffffffffffe62
  32:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
  39:	fc ff df 
  3c:	4c 89 fa             	mov    %r15,%rdx
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	e9 30 fe ff ff       	jmp    0xfffffffffffffe38
   8:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
   f:	fc ff df 
  12:	4c 89 fa             	mov    %r15,%rdx
  15:	48                   	rex.W
[  251.465912][ T2852] RSP: 0018:ffffc90004f4f080 EFLAGS: 00010246
[  251.466307][ T2852] RAX: 0000000000000000 RBX: ffff8880127a2000 RCX: 0000000000000001
[  251.466764][ T2852] RDX: 0000000000000000 RSI: ffffffff93510751 RDI: ffffffff92c58280
[  251.467230][ T2852] RBP: ffffc90004f4f168 R08: 0000000000000000 R09: 0000000000000000
[  251.467679][ T2852] R10: ffffc90004f4f198 R11: ffffffff93f8d1e0 R12: 1ffff920009e9e14
[  251.468139][ T2852] R13: 00000000000005dc R14: ffffc90004f4f198 R15: ffff8880127a2f48
[  251.468592][ T2852] FS:  00007fb4f5207800(0000) GS:ffff8880d7399000(0000) knlGS:0000000000000000
[  251.469131][ T2852] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  251.469512][ T2852] CR2: 00007fb4f53f2ba0 CR3: 0000000009292002 CR4: 0000000000772ef0
[  251.469972][ T2852] PKRU: 55555554
[  251.470200][ T2852] Call Trace:
[  251.470424][ T2852]  <TASK>
[ 251.470580][ T2852] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 251.470883][ T2852] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 251.471207][ T2852] netif_set_mtu (net/core/dev.c:9652) 
[ 251.471522][ T2852] ? __pfx_netif_set_mtu (net/core/dev.c:9647) 
[ 251.471839][ T2852] dev_set_mtu (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:47 net/core/dev_api.c:249) 
[ 251.472079][ T2852] br_mtu_auto_adjust (net/bridge/br_if.c:525) 
[ 251.472384][ T2852] br_add_if (net/bridge/br_if.c:697) 
[ 251.472620][ T2852] do_set_master (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:41 net/core/rtnetlink.c:2949) 
[ 251.472918][ T2852] ? rtnl_configure_link (net/core/rtnetlink.c:3592) 
[ 251.473231][ T2852] rtnl_newlink_create (net/core/rtnetlink.c:3840) 
[ 251.473538][ T2852] ? __pfx_rtnl_newlink_create (net/core/rtnetlink.c:3791) 
[ 251.473835][ T2852] ? __dev_get_by_name (net/core/dev.c:865) 
[ 251.474145][ T2852] ? rtnl_dev_get (net/core/rtnetlink.c:3404) 
[ 251.474446][ T2852] ? __pfx_rtnl_dev_get (net/core/rtnetlink.c:3404) 
[ 251.474749][ T2852] ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4056) 
[ 251.475056][ T2852] ? reacquire_held_locks (kernel/locking/lockdep.c:5388) 
[ 251.475361][ T2852] __rtnl_newlink (net/core/rtnetlink.c:3942) 
[ 251.475674][ T2852] rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4058) 
[ 251.475989][ T2852] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 251.476305][ T2852] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/rtnetlink.c:6944) 
[ 251.476603][ T2852] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 251.476908][ T2852] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 251.477216][ T2852] rtnetlink_rcv_msg (net/core/rtnetlink.c:6946) 
[ 251.477518][ T2852] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 251.477821][ T2852] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 251.478140][ T2852] netlink_rcv_skb (net/netlink/af_netlink.c:2551) 
[ 251.478442][ T2852] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 251.478744][ T2852] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2528) 
[ 251.479062][ T2852] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/netlink/af_netlink.c:340) 
[ 251.479363][ T2852] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 ./include/net/netns/generic.h:48 net/netlink/af_netlink.c:333) 
[ 251.479666][ T2852] netlink_unicast (net/netlink/af_netlink.c:1321 net/netlink/af_netlink.c:1346) 
[ 251.479977][ T2852] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1331) 
[ 251.480284][ T2852] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 251.480590][ T2852] netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 251.480894][ T2852] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1815) 
[ 251.481204][ T2852] ? __import_iovec (lib/iov_iter.c:1441 lib/iov_iter.c:1456) 
[ 251.481524][ T2852] ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 251.481830][ T2852] ? __pfx_____sys_sendmsg (net/socket.c:2560) 
[ 251.482136][ T2852] ? __pfx_copy_msghdr_from_user (net/socket.c:2540) 
[ 251.482530][ T2852] ___sys_sendmsg (net/socket.c:2670) 
[ 251.482833][ T2852] ? __pfx____sys_sendmsg (net/socket.c:2657) 
[ 251.483146][ T2852] ? rcu_read_lock_any_held (kernel/rcu/update.c:386 kernel/rcu/update.c:380) 
[ 251.483450][ T2852] ? rcu_read_lock_any_held (kernel/rcu/update.c:386 kernel/rcu/update.c:380) 
[ 251.483748][ T2852] ? validate_chain (kernel/locking/lockdep.c:3804 kernel/locking/lockdep.c:3824 kernel/locking/lockdep.c:3879) 
[ 251.484059][ T2852] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 251.484373][ T2852] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 251.484683][ T2852] __sys_sendmsg (net/socket.c:2700) 
[ 251.484993][ T2852] ? __pfx___sys_sendmsg (net/socket.c:2685) 
[ 251.485306][ T2852] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 251.485608][ T2852] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 251.485911][ T2852] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[  251.486290][ T2852] RIP: 0033:0x7fb4f53d41e7
[ 251.486600][ T2852] Code: 0e 00 f7 d8 64 89 02 48 c7 c0 ff ff ff ff eb b9 0f 1f 00 f3 0f 1e fa 64 8b 04 25 18 00 00 00 85 c0 75 10 b8 2e 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 51 c3 48 83 ec 28 89 54 24 1c 48 89 74 24 10
All code
========
   0:	0e                   	(bad)
   1:	00 f7                	add    %dh,%bh
   3:	d8 64 89 02          	fsubs  0x2(%rcx,%rcx,4)
   7:	48 c7 c0 ff ff ff ff 	mov    $0xffffffffffffffff,%rax
   e:	eb b9                	jmp    0xffffffffffffffc9
  10:	0f 1f 00             	nopl   (%rax)
  13:	f3 0f 1e fa          	endbr64
  17:	64 8b 04 25 18 00 00 	mov    %fs:0x18,%eax
  1e:	00 
  1f:	85 c0                	test   %eax,%eax
  21:	75 10                	jne    0x33
  23:	b8 2e 00 00 00       	mov    $0x2e,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 00 f0 ff ff    	cmp    $0xfffffffffffff000,%rax		<-- trapping instruction
  30:	77 51                	ja     0x83
  32:	c3                   	ret
  33:	48 83 ec 28          	sub    $0x28,%rsp
  37:	89 54 24 1c          	mov    %edx,0x1c(%rsp)
  3b:	48 89 74 24 10       	mov    %rsi,0x10(%rsp)

Code starting with the faulting instruction
===========================================
   0:	48 3d 00 f0 ff ff    	cmp    $0xfffffffffffff000,%rax
   6:	77 51                	ja     0x59
   8:	c3                   	ret
   9:	48 83 ec 28          	sub    $0x28,%rsp
   d:	89 54 24 1c          	mov    %edx,0x1c(%rsp)
  11:	48 89 74 24 10       	mov    %rsi,0x10(%rsp)
[  251.487709][ T2852] RSP: 002b:00007ffe0052b9d8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[  251.488179][ T2852] RAX: ffffffffffffffda RBX: 00007ffe0052c110 RCX: 00007fb4f53d41e7
[  251.488631][ T2852] RDX: 0000000000000000 RSI: 00007ffe0052ba40 RDI: 0000000000000005
[  251.489096][ T2852] RBP: 0000000000000006 R08: 0000000000000078 R09: 0000000000000000
[  251.489555][ T2852] R10: 00007fb4f5462ac0 R11: 0000000000000246 R12: 00007ffe0052c148
[  251.490015][ T2852] R13: 00000000686e794c R14: 0000000000499600 R15: 00007ffe0052bb30
| [  270.093432][ T3024] ------------[ cut here ]------------
| [ 270.093759][ T3024] WARNING: CPU: 2 PID: 3024 at ./include/net/netdev_lock.h:17 netif_set_mtu_ext (./include/net/netdev_lock.h:17 ./include/net/netdev_lock.h:15 ./include/net/netdev_lock.h:25 net/core/dev.c:9610) 
| [  270.094389][ T3024] Modules linked in: sctp act_gact cls_flower sch_ingress vxlan ip6_gre gre [last unloaded: test_bpf]
| [  270.095674][ T3024] Tainted: [W]=WARN
[  270.095921][ T3024] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 270.096319][ T3024] RIP: 0010:netif_set_mtu_ext (./include/net/netdev_lock.h:17 ./include/net/netdev_lock.h:15 ./include/net/netdev_lock.h:25 net/core/dev.c:9610) 
[ 270.096641][ T3024] Code: 00 00 8b 05 77 04 bc 02 85 c0 0f 84 52 fe ff ff 48 8d bb c0 0c 00 00 be ff ff ff ff e8 da fc 9b 00 85 c0 0f 85 39 fe ff ff 90 <0f> 0b 90 e9 30 fe ff ff 48 b8 00 00 00 00 00 fc ff df 4c 89 fa 48
All code
========
   0:	00 00                	add    %al,(%rax)
   2:	8b 05 77 04 bc 02    	mov    0x2bc0477(%rip),%eax        # 0x2bc047f
   8:	85 c0                	test   %eax,%eax
   a:	0f 84 52 fe ff ff    	je     0xfffffffffffffe62
  10:	48 8d bb c0 0c 00 00 	lea    0xcc0(%rbx),%rdi
  17:	be ff ff ff ff       	mov    $0xffffffff,%esi
  1c:	e8 da fc 9b 00       	call   0x9bfcfb
  21:	85 c0                	test   %eax,%eax
  23:	0f 85 39 fe ff ff    	jne    0xfffffffffffffe62
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	e9 30 fe ff ff       	jmp    0xfffffffffffffe62
  32:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
  39:	fc ff df 
  3c:	4c 89 fa             	mov    %r15,%rdx
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	e9 30 fe ff ff       	jmp    0xfffffffffffffe38
   8:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
   f:	fc ff df 
  12:	4c 89 fa             	mov    %r15,%rdx
  15:	48                   	rex.W
[  270.097732][ T3024] RSP: 0018:ffffc90005b47080 EFLAGS: 00010246
[  270.098150][ T3024] RAX: 0000000000000000 RBX: ffff88800cd22000 RCX: 0000000000000001
[  270.098622][ T3024] RDX: 0000000000000000 RSI: ffffffff93510751 RDI: ffffffff92c58280
[  270.099095][ T3024] RBP: ffffc90005b47168 R08: 0000000000000000 R09: 0000000000000000
[  270.099558][ T3024] R10: ffffc90005b47198 R11: ffffffff93f8d1e0 R12: 1ffff92000b68e14
[  270.100035][ T3024] R13: 00000000000005dc R14: ffffc90005b47198 R15: ffff88800cd22f48
[  270.100497][ T3024] FS:  00007fd378f8c800(0000) GS:ffff8880d7499000(0000) knlGS:0000000000000000
[  270.101047][ T3024] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  270.101450][ T3024] CR2: 000000000043d940 CR3: 000000001257b005 CR4: 0000000000772ef0
[  270.101921][ T3024] PKRU: 55555554
[  270.102173][ T3024] Call Trace:
[  270.102414][ T3024]  <TASK>
[ 270.102581][ T3024] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 270.102898][ T3024] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 270.103238][ T3024] netif_set_mtu (net/core/dev.c:9652) 
[ 270.103554][ T3024] ? __pfx_netif_set_mtu (net/core/dev.c:9647) 
[ 270.103882][ T3024] dev_set_mtu (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:47 net/core/dev_api.c:249) 
[ 270.104135][ T3024] br_mtu_auto_adjust (net/bridge/br_if.c:525) 
[ 270.104460][ T3024] br_add_if (net/bridge/br_if.c:697) 
[ 270.104715][ T3024] do_set_master (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:41 net/core/rtnetlink.c:2949) 
[ 270.105036][ T3024] ? rtnl_configure_link (net/core/rtnetlink.c:3592) 
[ 270.105356][ T3024] rtnl_newlink_create (net/core/rtnetlink.c:3840) 
[ 270.105674][ T3024] ? __pfx_rtnl_newlink_create (net/core/rtnetlink.c:3791) 
[ 270.106000][ T3024] ? __dev_get_by_name (net/core/dev.c:865) 
[ 270.106316][ T3024] ? rtnl_dev_get (net/core/rtnetlink.c:3404) 
[ 270.106631][ T3024] ? __pfx_rtnl_dev_get (net/core/rtnetlink.c:3404) 
[ 270.106960][ T3024] ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4056) 
[ 270.107272][ T3024] ? reacquire_held_locks (kernel/locking/lockdep.c:5388) 
[ 270.107592][ T3024] __rtnl_newlink (net/core/rtnetlink.c:3942) 
[ 270.107914][ T3024] rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4058) 
[ 270.108244][ T3024] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 270.108565][ T3024] ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4475) 
[ 270.108886][ T3024] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/rtnetlink.c:6944) 
[ 270.109211][ T3024] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 270.109528][ T3024] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 270.109839][ T3024] rtnetlink_rcv_msg (net/core/rtnetlink.c:6946) 
[ 270.110173][ T3024] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 270.110492][ T3024] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 270.110811][ T3024] netlink_rcv_skb (net/netlink/af_netlink.c:2551) 
[ 270.111132][ T3024] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 270.111463][ T3024] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2528) 
[ 270.111788][ T3024] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/netlink/af_netlink.c:340) 
[ 270.112110][ T3024] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 ./include/net/netns/generic.h:48 net/netlink/af_netlink.c:333) 
[ 270.112423][ T3024] netlink_unicast (net/netlink/af_netlink.c:1321 net/netlink/af_netlink.c:1346) 
[ 270.112740][ T3024] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1331) 
[ 270.113059][ T3024] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 270.113382][ T3024] netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 270.113705][ T3024] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1815) 
[ 270.114031][ T3024] ? __import_iovec (lib/iov_iter.c:1441 lib/iov_iter.c:1456) 
[ 270.114351][ T3024] ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 270.114665][ T3024] ? __pfx_____sys_sendmsg (net/socket.c:2560) 
[ 270.114986][ T3024] ? __pfx_copy_msghdr_from_user (net/socket.c:2540) 
[ 270.115385][ T3024] ___sys_sendmsg (net/socket.c:2670) 
[ 270.115701][ T3024] ? __pfx____sys_sendmsg (net/socket.c:2657) 
[ 270.116030][ T3024] ? __pfx_handle_pte_fault (mm/memory.c:6026) 
[ 270.116348][ T3024] ? reacquire_held_locks (kernel/locking/lockdep.c:5388) 
[ 270.116660][ T3024] ? do_user_addr_fault (arch/x86/mm/fault.c:1327) 
[ 270.116988][ T3024] ? __handle_mm_fault (mm/memory.c:6212) 
[ 270.117301][ T3024] ? __pfx___handle_mm_fault (mm/memory.c:6121) 
[ 270.117613][ T3024] ? lock_vma_under_rcu (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 mm/mmap_lock.c:171) 
[ 270.117954][ T3024] __sys_sendmsg (net/socket.c:2700) 
[ 270.118277][ T3024] ? __pfx___sys_sendmsg (net/socket.c:2685) 
[ 270.118588][ T3024] ? exc_page_fault (./arch/x86/include/asm/irqflags.h:26 ./arch/x86/include/asm/irqflags.h:109 ./arch/x86/include/asm/irqflags.h:151 arch/x86/mm/fault.c:1484 arch/x86/mm/fault.c:1532) 
[ 270.118908][ T3024] ? do_user_addr_fault (./arch/x86/include/asm/atomic.h:93 ./include/linux/atomic/atomic-arch-fallback.h:949 ./include/linux/atomic/atomic-instrumented.h:401 ./include/linux/refcount.h:389 ./include/linux/refcount.h:432 ./include/linux/mmap_lock.h:142 ./include/linux/mmap_lock.h:237 arch/x86/mm/fault.c:1338) 
[ 270.119232][ T3024] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 270.119551][ T3024] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 270.119862][ T3024] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[  270.120256][ T3024] RIP: 0033:0x7fd3791591e7
[ 270.120584][ T3024] Code: 0e 00 f7 d8 64 89 02 48 c7 c0 ff ff ff ff eb b9 0f 1f 00 f3 0f 1e fa 64 8b 04 25 18 00 00 00 85 c0 75 10 b8 2e 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 51 c3 48 83 ec 28 89 54 24 1c 48 89 74 24 10
All code
========
   0:	0e                   	(bad)
   1:	00 f7                	add    %dh,%bh
   3:	d8 64 89 02          	fsubs  0x2(%rcx,%rcx,4)
   7:	48 c7 c0 ff ff ff ff 	mov    $0xffffffffffffffff,%rax
   e:	eb b9                	jmp    0xffffffffffffffc9
  10:	0f 1f 00             	nopl   (%rax)
  13:	f3 0f 1e fa          	endbr64
  17:	64 8b 04 25 18 00 00 	mov    %fs:0x18,%eax
  1e:	00 
  1f:	85 c0                	test   %eax,%eax
  21:	75 10                	jne    0x33
  23:	b8 2e 00 00 00       	mov    $0x2e,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 00 f0 ff ff    	cmp    $0xfffffffffffff000,%rax		<-- trapping instruction
  30:	77 51                	ja     0x83
  32:	c3                   	ret
  33:	48 83 ec 28          	sub    $0x28,%rsp
  37:	89 54 24 1c          	mov    %edx,0x1c(%rsp)
  3b:	48 89 74 24 10       	mov    %rsi,0x10(%rsp)

Code starting with the faulting instruction
===========================================
   0:	48 3d 00 f0 ff ff    	cmp    $0xfffffffffffff000,%rax
   6:	77 51                	ja     0x59
   8:	c3                   	ret
   9:	48 83 ec 28          	sub    $0x28,%rsp
   d:	89 54 24 1c          	mov    %edx,0x1c(%rsp)
  11:	48 89 74 24 10       	mov    %rsi,0x10(%rsp)
[  270.121689][ T3024] RSP: 002b:00007ffec53f7e38 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[  270.122165][ T3024] RAX: ffffffffffffffda RBX: 00007ffec53f8570 RCX: 00007fd3791591e7
[  270.122634][ T3024] RDX: 0000000000000000 RSI: 00007ffec53f7ea0 RDI: 0000000000000005
[  270.123104][ T3024] RBP: 0000000000000006 R08: 000000000000006c R09: 0000000000000000
[  270.123566][ T3024] R10: 00007fd3791e7ac0 R11: 0000000000000246 R12: 00007ffec53f85a8
[  270.124038][ T3024] R13: 00000000686e795e R14: 0000000000499600 R15: 00007ffec53f7f90
| [  274.139419][ T3054] ------------[ cut here ]------------
| [ 274.139725][ T3054] WARNING: CPU: 3 PID: 3054 at ./include/net/netdev_lock.h:17 netif_set_mtu_ext (./include/net/netdev_lock.h:17 ./include/net/netdev_lock.h:15 ./include/net/netdev_lock.h:25 net/core/dev.c:9610) 
| [  274.140334][ T3054] Modules linked in: sctp act_gact cls_flower sch_ingress vxlan ip6_gre gre [last unloaded: test_bpf]
| [  274.141606][ T3054] Tainted: [W]=WARN
[  274.141838][ T3054] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 274.142230][ T3054] RIP: 0010:netif_set_mtu_ext (./include/net/netdev_lock.h:17 ./include/net/netdev_lock.h:15 ./include/net/netdev_lock.h:25 net/core/dev.c:9610) 
[ 274.142540][ T3054] Code: 00 00 8b 05 77 04 bc 02 85 c0 0f 84 52 fe ff ff 48 8d bb c0 0c 00 00 be ff ff ff ff e8 da fc 9b 00 85 c0 0f 85 39 fe ff ff 90 <0f> 0b 90 e9 30 fe ff ff 48 b8 00 00 00 00 00 fc ff df 4c 89 fa 48
All code
========
   0:	00 00                	add    %al,(%rax)
   2:	8b 05 77 04 bc 02    	mov    0x2bc0477(%rip),%eax        # 0x2bc047f
   8:	85 c0                	test   %eax,%eax
   a:	0f 84 52 fe ff ff    	je     0xfffffffffffffe62
  10:	48 8d bb c0 0c 00 00 	lea    0xcc0(%rbx),%rdi
  17:	be ff ff ff ff       	mov    $0xffffffff,%esi
  1c:	e8 da fc 9b 00       	call   0x9bfcfb
  21:	85 c0                	test   %eax,%eax
  23:	0f 85 39 fe ff ff    	jne    0xfffffffffffffe62
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	e9 30 fe ff ff       	jmp    0xfffffffffffffe62
  32:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
  39:	fc ff df 
  3c:	4c 89 fa             	mov    %r15,%rdx
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	e9 30 fe ff ff       	jmp    0xfffffffffffffe38
   8:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
   f:	fc ff df 
  12:	4c 89 fa             	mov    %r15,%rdx
  15:	48                   	rex.W
[  274.143624][ T3054] RSP: 0018:ffffc90005cf7080 EFLAGS: 00010246
[  274.144020][ T3054] RAX: 0000000000000000 RBX: ffff88800ef8a000 RCX: 0000000000000001
[  274.144474][ T3054] RDX: 0000000000000000 RSI: ffffffff93510751 RDI: ffffffff92c58280
[  274.144922][ T3054] RBP: ffffc90005cf7168 R08: 0000000000000000 R09: 0000000000000000
[  274.145389][ T3054] R10: ffffc90005cf7198 R11: ffffffff93f8d1e0 R12: 1ffff92000b9ee14
[  274.145846][ T3054] R13: 00000000000005dc R14: ffffc90005cf7198 R15: ffff88800ef8af48
[  274.146303][ T3054] FS:  00007fa72ab08800(0000) GS:ffff8880d7519000(0000) knlGS:0000000000000000
[  274.146830][ T3054] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  274.147216][ T3054] CR2: 000000000043d940 CR3: 0000000011e07001 CR4: 0000000000772ef0
[  274.147672][ T3054] PKRU: 55555554
[  274.147902][ T3054] Call Trace:
[  274.148135][ T3054]  <TASK>
[ 274.148293][ T3054] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 274.148595][ T3054] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 274.148909][ T3054] netif_set_mtu (net/core/dev.c:9652) 
[ 274.149218][ T3054] ? __pfx_netif_set_mtu (net/core/dev.c:9647) 
[ 274.149535][ T3054] dev_set_mtu (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:47 net/core/dev_api.c:249) 
[ 274.149763][ T3054] br_mtu_auto_adjust (net/bridge/br_if.c:525) 
[ 274.150076][ T3054] br_add_if (net/bridge/br_if.c:697) 
[ 274.150320][ T3054] do_set_master (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:41 net/core/rtnetlink.c:2949) 
[ 274.150620][ T3054] ? rtnl_configure_link (net/core/rtnetlink.c:3592) 
[ 274.150923][ T3054] rtnl_newlink_create (net/core/rtnetlink.c:3840) 
[ 274.151236][ T3054] ? __pfx_rtnl_newlink_create (net/core/rtnetlink.c:3791) 
[ 274.151542][ T3054] ? __dev_get_by_name (net/core/dev.c:865) 
[ 274.151844][ T3054] ? rtnl_dev_get (net/core/rtnetlink.c:3404) 
[ 274.152151][ T3054] ? __pfx_rtnl_dev_get (net/core/rtnetlink.c:3404) 
[ 274.152461][ T3054] ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4056) 
[ 274.152761][ T3054] ? reacquire_held_locks (kernel/locking/lockdep.c:5388) 
[ 274.153073][ T3054] __rtnl_newlink (net/core/rtnetlink.c:3942) 
[ 274.153384][ T3054] rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4058) 
[ 274.153691][ T3054] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 274.154018][ T3054] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/rtnetlink.c:6944) 
[ 274.154316][ T3054] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 274.154619][ T3054] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 274.154925][ T3054] rtnetlink_rcv_msg (net/core/rtnetlink.c:6946) 
[ 274.155237][ T3054] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 274.155541][ T3054] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 274.155848][ T3054] netlink_rcv_skb (net/netlink/af_netlink.c:2551) 
[ 274.156157][ T3054] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 274.156461][ T3054] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2528) 
[ 274.156773][ T3054] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/netlink/af_netlink.c:340) 
[ 274.157086][ T3054] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 ./include/net/netns/generic.h:48 net/netlink/af_netlink.c:333) 
[ 274.157389][ T3054] netlink_unicast (net/netlink/af_netlink.c:1321 net/netlink/af_netlink.c:1346) 
[ 274.157697][ T3054] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1331) 
[ 274.158006][ T3054] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 274.158312][ T3054] netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 274.158616][ T3054] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1815) 
[ 274.158918][ T3054] ? __import_iovec (lib/iov_iter.c:1441 lib/iov_iter.c:1456) 
[ 274.159240][ T3054] ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 274.159543][ T3054] ? __pfx_____sys_sendmsg (net/socket.c:2560) 
[ 274.159840][ T3054] ? __pfx_copy_msghdr_from_user (net/socket.c:2540) 
[ 274.160236][ T3054] ___sys_sendmsg (net/socket.c:2670) 
[ 274.160538][ T3054] ? __pfx____sys_sendmsg (net/socket.c:2657) 
[ 274.160840][ T3054] ? __pfx_handle_pte_fault (mm/memory.c:6026) 
[ 274.161154][ T3054] ? reacquire_held_locks (kernel/locking/lockdep.c:5388) 
[ 274.161465][ T3054] ? do_user_addr_fault (arch/x86/mm/fault.c:1327) 
[ 274.161770][ T3054] ? __handle_mm_fault (mm/memory.c:6212) 
[ 274.162082][ T3054] ? __pfx___handle_mm_fault (mm/memory.c:6121) 
[ 274.162383][ T3054] ? lock_vma_under_rcu (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 mm/mmap_lock.c:171) 
[ 274.162704][ T3054] __sys_sendmsg (net/socket.c:2700) 
[ 274.163013][ T3054] ? __pfx___sys_sendmsg (net/socket.c:2685) 
[ 274.163321][ T3054] ? exc_page_fault (./arch/x86/include/asm/irqflags.h:26 ./arch/x86/include/asm/irqflags.h:109 ./arch/x86/include/asm/irqflags.h:151 arch/x86/mm/fault.c:1484 arch/x86/mm/fault.c:1532) 
[ 274.163629][ T3054] ? do_user_addr_fault (./arch/x86/include/asm/atomic.h:93 ./include/linux/atomic/atomic-arch-fallback.h:949 ./include/linux/atomic/atomic-instrumented.h:401 ./include/linux/refcount.h:389 ./include/linux/refcount.h:432 ./include/linux/mmap_lock.h:142 ./include/linux/mmap_lock.h:237 arch/x86/mm/fault.c:1338) 
[ 274.163930][ T3054] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 274.164243][ T3054] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 274.164547][ T3054] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[  274.164926][ T3054] RIP: 0033:0x7fa72acd51e7
[ 274.165243][ T3054] Code: 0e 00 f7 d8 64 89 02 48 c7 c0 ff ff ff ff eb b9 0f 1f 00 f3 0f 1e fa 64 8b 04 25 18 00 00 00 85 c0 75 10 b8 2e 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 51 c3 48 83 ec 28 89 54 24 1c 48 89 74 24 10
All code
========
   0:	0e                   	(bad)
   1:	00 f7                	add    %dh,%bh
   3:	d8 64 89 02          	fsubs  0x2(%rcx,%rcx,4)
   7:	48 c7 c0 ff ff ff ff 	mov    $0xffffffffffffffff,%rax
   e:	eb b9                	jmp    0xffffffffffffffc9
  10:	0f 1f 00             	nopl   (%rax)
  13:	f3 0f 1e fa          	endbr64
  17:	64 8b 04 25 18 00 00 	mov    %fs:0x18,%eax
  1e:	00 
  1f:	85 c0                	test   %eax,%eax
  21:	75 10                	jne    0x33
  23:	b8 2e 00 00 00       	mov    $0x2e,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 00 f0 ff ff    	cmp    $0xfffffffffffff000,%rax		<-- trapping instruction
  30:	77 51                	ja     0x83
  32:	c3                   	ret
  33:	48 83 ec 28          	sub    $0x28,%rsp
  37:	89 54 24 1c          	mov    %edx,0x1c(%rsp)
  3b:	48 89 74 24 10       	mov    %rsi,0x10(%rsp)

Code starting with the faulting instruction
===========================================
   0:	48 3d 00 f0 ff ff    	cmp    $0xfffffffffffff000,%rax
   6:	77 51                	ja     0x59
   8:	c3                   	ret
   9:	48 83 ec 28          	sub    $0x28,%rsp
   d:	89 54 24 1c          	mov    %edx,0x1c(%rsp)
  11:	48 89 74 24 10       	mov    %rsi,0x10(%rsp)
[  274.166333][ T3054] RSP: 002b:00007fff278f9f48 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[  274.166793][ T3054] RAX: ffffffffffffffda RBX: 00007fff278fa680 RCX: 00007fa72acd51e7
[  274.167253][ T3054] RDX: 0000000000000000 RSI: 00007fff278f9fb0 RDI: 0000000000000005
[  274.167711][ T3054] RBP: 0000000000000006 R08: 000000000000006c R09: 0000000000000000
[  274.168177][ T3054] R10: 00007fa72ad63ac0 R11: 0000000000000246 R12: 00007fff278fa6b8
[  274.168631][ T3054] R13: 00000000686e7962 R14: 0000000000499600 R15: 00007fff278fa0a0
| [  281.000379][ T3120] ------------[ cut here ]------------
| [ 281.000690][ T3120] WARNING: CPU: 0 PID: 3120 at ./include/net/netdev_lock.h:17 netif_set_mtu_ext (./include/net/netdev_lock.h:17 ./include/net/netdev_lock.h:15 ./include/net/netdev_lock.h:25 net/core/dev.c:9610) 
| [  281.001308][ T3120] Modules linked in: sctp act_gact cls_flower sch_ingress vxlan ip6_gre gre [last unloaded: test_bpf]
| [  281.002583][ T3120] Tainted: [W]=WARN
[  281.002813][ T3120] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 281.003204][ T3120] RIP: 0010:netif_set_mtu_ext (./include/net/netdev_lock.h:17 ./include/net/netdev_lock.h:15 ./include/net/netdev_lock.h:25 net/core/dev.c:9610) 
[ 281.003516][ T3120] Code: 00 00 8b 05 77 04 bc 02 85 c0 0f 84 52 fe ff ff 48 8d bb c0 0c 00 00 be ff ff ff ff e8 da fc 9b 00 85 c0 0f 85 39 fe ff ff 90 <0f> 0b 90 e9 30 fe ff ff 48 b8 00 00 00 00 00 fc ff df 4c 89 fa 48
All code
========
   0:	00 00                	add    %al,(%rax)
   2:	8b 05 77 04 bc 02    	mov    0x2bc0477(%rip),%eax        # 0x2bc047f
   8:	85 c0                	test   %eax,%eax
   a:	0f 84 52 fe ff ff    	je     0xfffffffffffffe62
  10:	48 8d bb c0 0c 00 00 	lea    0xcc0(%rbx),%rdi
  17:	be ff ff ff ff       	mov    $0xffffffff,%esi
  1c:	e8 da fc 9b 00       	call   0x9bfcfb
  21:	85 c0                	test   %eax,%eax
  23:	0f 85 39 fe ff ff    	jne    0xfffffffffffffe62
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	e9 30 fe ff ff       	jmp    0xfffffffffffffe62
  32:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
  39:	fc ff df 
  3c:	4c 89 fa             	mov    %r15,%rdx
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	e9 30 fe ff ff       	jmp    0xfffffffffffffe38
   8:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
   f:	fc ff df 
  12:	4c 89 fa             	mov    %r15,%rdx
  15:	48                   	rex.W
[  281.004601][ T3120] RSP: 0018:ffffc90005fc7080 EFLAGS: 00010246
[  281.004996][ T3120] RAX: 0000000000000000 RBX: ffff8880059f2000 RCX: 0000000000000001
[  281.005453][ T3120] RDX: 0000000000000000 RSI: ffffffff93510751 RDI: ffffffff92c58280
[  281.005904][ T3120] RBP: ffffc90005fc7168 R08: 0000000000000000 R09: 0000000000000000
[  281.006374][ T3120] R10: ffffc90005fc7198 R11: ffffffff93f8d1e0 R12: 1ffff92000bf8e14
[  281.006827][ T3120] R13: 00000000000005dc R14: ffffc90005fc7198 R15: ffff8880059f2f48
[  281.007295][ T3120] FS:  00007f40815c0800(0000) GS:ffff8880d7399000(0000) knlGS:0000000000000000
[  281.007827][ T3120] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  281.008216][ T3120] CR2: 00007f40816c0130 CR3: 000000000a1c2003 CR4: 0000000000772ef0
[  281.008675][ T3120] PKRU: 55555554
[  281.008901][ T3120] Call Trace:
[  281.009139][ T3120]  <TASK>
[ 281.009297][ T3120] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 281.009601][ T3120] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 281.009915][ T3120] netif_set_mtu (net/core/dev.c:9652) 
[ 281.010233][ T3120] ? __pfx_netif_set_mtu (net/core/dev.c:9647) 
[ 281.010562][ T3120] dev_set_mtu (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:47 net/core/dev_api.c:249) 
[ 281.010793][ T3120] br_mtu_auto_adjust (net/bridge/br_if.c:525) 
[ 281.011107][ T3120] br_add_if (net/bridge/br_if.c:697) 
[ 281.011358][ T3120] do_set_master (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:41 net/core/rtnetlink.c:2949) 
[ 281.011659][ T3120] ? rtnl_configure_link (net/core/rtnetlink.c:3592) 
[ 281.011974][ T3120] rtnl_newlink_create (net/core/rtnetlink.c:3840) 
[ 281.012280][ T3120] ? __pfx_rtnl_newlink_create (net/core/rtnetlink.c:3791) 
[ 281.012582][ T3120] ? __dev_get_by_name (net/core/dev.c:865) 
[ 281.012883][ T3120] ? rtnl_dev_get (net/core/rtnetlink.c:3404) 
[ 281.013191][ T3120] ? __pfx_rtnl_dev_get (net/core/rtnetlink.c:3404) 
[ 281.013503][ T3120] ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4056) 
[ 281.013804][ T3120] ? reacquire_held_locks (kernel/locking/lockdep.c:5388) 
[ 281.014126][ T3120] __rtnl_newlink (net/core/rtnetlink.c:3942) 
[ 281.014446][ T3120] rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4058) 
[ 281.014754][ T3120] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 281.015075][ T3120] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/rtnetlink.c:6944) 
[ 281.015376][ T3120] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 281.015677][ T3120] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 281.015993][ T3120] rtnetlink_rcv_msg (net/core/rtnetlink.c:6946) 
[ 281.016297][ T3120] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 281.016602][ T3120] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 281.016911][ T3120] netlink_rcv_skb (net/netlink/af_netlink.c:2551) 
[ 281.017221][ T3120] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 281.017525][ T3120] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2528) 
[ 281.017838][ T3120] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/netlink/af_netlink.c:340) 
[ 281.018158][ T3120] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 ./include/net/netns/generic.h:48 net/netlink/af_netlink.c:333) 
[ 281.018464][ T3120] netlink_unicast (net/netlink/af_netlink.c:1321 net/netlink/af_netlink.c:1346) 
[ 281.018768][ T3120] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1331) 
[ 281.019078][ T3120] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 281.019386][ T3120] netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 281.019691][ T3120] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1815) 
[ 281.020003][ T3120] ? __import_iovec (lib/iov_iter.c:1441 lib/iov_iter.c:1456) 
[ 281.020322][ T3120] ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 281.020625][ T3120] ? __pfx_____sys_sendmsg (net/socket.c:2560) 
[ 281.020923][ T3120] ? __pfx_copy_msghdr_from_user (net/socket.c:2540) 
[ 281.021326][ T3120] ___sys_sendmsg (net/socket.c:2670) 
[ 281.021638][ T3120] ? __pfx____sys_sendmsg (net/socket.c:2657) 
[ 281.021937][ T3120] ? __pfx_handle_pte_fault (mm/memory.c:6026) 
[ 281.022262][ T3120] ? reacquire_held_locks (kernel/locking/lockdep.c:5388) 
[ 281.022566][ T3120] ? do_user_addr_fault (arch/x86/mm/fault.c:1327) 
[ 281.022869][ T3120] ? __handle_mm_fault (mm/memory.c:6212) 
[ 281.023182][ T3120] ? __pfx___handle_mm_fault (mm/memory.c:6121) 
[ 281.023482][ T3120] ? lock_vma_under_rcu (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 mm/mmap_lock.c:171) 
[ 281.023805][ T3120] __sys_sendmsg (net/socket.c:2700) 
[ 281.024118][ T3120] ? __pfx___sys_sendmsg (net/socket.c:2685) 
[ 281.024421][ T3120] ? exc_page_fault (./arch/x86/include/asm/irqflags.h:26 ./arch/x86/include/asm/irqflags.h:109 ./arch/x86/include/asm/irqflags.h:151 arch/x86/mm/fault.c:1484 arch/x86/mm/fault.c:1532) 
[ 281.024740][ T3120] ? do_user_addr_fault (./arch/x86/include/asm/atomic.h:93 ./include/linux/atomic/atomic-arch-fallback.h:949 ./include/linux/atomic/atomic-instrumented.h:401 ./include/linux/refcount.h:389 ./include/linux/refcount.h:432 ./include/linux/mmap_lock.h:142 ./include/linux/mmap_lock.h:237 arch/x86/mm/fault.c:1338) 
[ 281.025050][ T3120] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 281.025355][ T3120] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 281.025658][ T3120] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[  281.026049][ T3120] RIP: 0033:0x7f408178d1e7
[ 281.026370][ T3120] Code: 0e 00 f7 d8 64 89 02 48 c7 c0 ff ff ff ff eb b9 0f 1f 00 f3 0f 1e fa 64 8b 04 25 18 00 00 00 85 c0 75 10 b8 2e 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 51 c3 48 83 ec 28 89 54 24 1c 48 89 74 24 10
All code
========
   0:	0e                   	(bad)
   1:	00 f7                	add    %dh,%bh
   3:	d8 64 89 02          	fsubs  0x2(%rcx,%rcx,4)
   7:	48 c7 c0 ff ff ff ff 	mov    $0xffffffffffffffff,%rax
   e:	eb b9                	jmp    0xffffffffffffffc9
  10:	0f 1f 00             	nopl   (%rax)
  13:	f3 0f 1e fa          	endbr64
  17:	64 8b 04 25 18 00 00 	mov    %fs:0x18,%eax
  1e:	00 
  1f:	85 c0                	test   %eax,%eax
  21:	75 10                	jne    0x33
  23:	b8 2e 00 00 00       	mov    $0x2e,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 00 f0 ff ff    	cmp    $0xfffffffffffff000,%rax		<-- trapping instruction
  30:	77 51                	ja     0x83
  32:	c3                   	ret
  33:	48 83 ec 28          	sub    $0x28,%rsp
  37:	89 54 24 1c          	mov    %edx,0x1c(%rsp)
  3b:	48 89 74 24 10       	mov    %rsi,0x10(%rsp)

Code starting with the faulting instruction
===========================================
   0:	48 3d 00 f0 ff ff    	cmp    $0xfffffffffffff000,%rax
   6:	77 51                	ja     0x59
   8:	c3                   	ret
   9:	48 83 ec 28          	sub    $0x28,%rsp
   d:	89 54 24 1c          	mov    %edx,0x1c(%rsp)
  11:	48 89 74 24 10       	mov    %rsi,0x10(%rsp)
[  281.027464][ T3120] RSP: 002b:00007ffef5ac2038 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[  281.027917][ T3120] RAX: ffffffffffffffda RBX: 00007ffef5ac2770 RCX: 00007f408178d1e7
[  281.028380][ T3120] RDX: 0000000000000000 RSI: 00007ffef5ac20a0 RDI: 0000000000000005
[  281.028839][ T3120] RBP: 0000000000000006 R08: 0000000000000078 R09: 0000000000000000
[  281.029307][ T3120] R10: 00007f408181bac0 R11: 0000000000000246 R12: 00007ffef5ac27a8
[  281.029768][ T3120] R13: 00000000686e7969 R14: 0000000000499600 R15: 00007ffef5ac2190
| [  284.932578][ T3150] ------------[ cut here ]------------
| [ 284.932887][ T3150] WARNING: CPU: 1 PID: 3150 at ./include/net/netdev_lock.h:17 netif_set_mtu_ext (./include/net/netdev_lock.h:17 ./include/net/netdev_lock.h:15 ./include/net/netdev_lock.h:25 net/core/dev.c:9610) 
| [  284.934496][ T3150] Modules linked in: sctp act_gact cls_flower sch_ingress vxlan ip6_gre gre [last unloaded: test_bpf]
| [  284.935735][ T3150] Tainted: [W]=WARN
[  284.935972][ T3150] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 284.936356][ T3150] RIP: 0010:netif_set_mtu_ext (./include/net/netdev_lock.h:17 ./include/net/netdev_lock.h:15 ./include/net/netdev_lock.h:25 net/core/dev.c:9610) 
[ 284.936667][ T3150] Code: 00 00 8b 05 77 04 bc 02 85 c0 0f 84 52 fe ff ff 48 8d bb c0 0c 00 00 be ff ff ff ff e8 da fc 9b 00 85 c0 0f 85 39 fe ff ff 90 <0f> 0b 90 e9 30 fe ff ff 48 b8 00 00 00 00 00 fc ff df 4c 89 fa 48
All code
========
   0:	00 00                	add    %al,(%rax)
   2:	8b 05 77 04 bc 02    	mov    0x2bc0477(%rip),%eax        # 0x2bc047f
   8:	85 c0                	test   %eax,%eax
   a:	0f 84 52 fe ff ff    	je     0xfffffffffffffe62
  10:	48 8d bb c0 0c 00 00 	lea    0xcc0(%rbx),%rdi
  17:	be ff ff ff ff       	mov    $0xffffffff,%esi
  1c:	e8 da fc 9b 00       	call   0x9bfcfb
  21:	85 c0                	test   %eax,%eax
  23:	0f 85 39 fe ff ff    	jne    0xfffffffffffffe62
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	e9 30 fe ff ff       	jmp    0xfffffffffffffe62
  32:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
  39:	fc ff df 
  3c:	4c 89 fa             	mov    %r15,%rdx
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	e9 30 fe ff ff       	jmp    0xfffffffffffffe38
   8:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
   f:	fc ff df 
  12:	4c 89 fa             	mov    %r15,%rdx
  15:	48                   	rex.W
[  284.937750][ T3150] RSP: 0018:ffffc90006137080 EFLAGS: 00010246
[  284.938138][ T3150] RAX: 0000000000000000 RBX: ffff8880158a2000 RCX: 0000000000000001
[  284.938596][ T3150] RDX: 0000000000000000 RSI: ffffffff93510751 RDI: ffffffff92c58280
[  284.939053][ T3150] RBP: ffffc90006137168 R08: 0000000000000000 R09: 0000000000000000
[  284.939509][ T3150] R10: ffffc90006137198 R11: ffffffff93f8d1e0 R12: 1ffff92000c26e14
[  284.939977][ T3150] R13: 00000000000005dc R14: ffffc90006137198 R15: ffff8880158a2f48
[  284.940433][ T3150] FS:  00007fdb9ffb7800(0000) GS:ffff8880d7419000(0000) knlGS:0000000000000000
[  284.941010][ T3150] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  284.941401][ T3150] CR2: 00007fdba01a2ba0 CR3: 000000000bc28002 CR4: 0000000000772ef0
[  284.941856][ T3150] PKRU: 55555554
[  284.942089][ T3150] Call Trace:
[  284.942314][ T3150]  <TASK>
[ 284.942477][ T3150] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 284.942778][ T3150] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 284.943119][ T3150] netif_set_mtu (net/core/dev.c:9652) 
[ 284.943422][ T3150] ? __pfx_netif_set_mtu (net/core/dev.c:9647) 
[ 284.943739][ T3150] dev_set_mtu (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:47 net/core/dev_api.c:249) 
[ 284.943975][ T3150] br_mtu_auto_adjust (net/bridge/br_if.c:525) 
[ 284.944281][ T3150] br_add_if (net/bridge/br_if.c:697) 
[ 284.944520][ T3150] do_set_master (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:41 net/core/rtnetlink.c:2949) 
[ 284.944825][ T3150] ? rtnl_configure_link (net/core/rtnetlink.c:3592) 
[ 284.945141][ T3150] rtnl_newlink_create (net/core/rtnetlink.c:3840) 
[ 284.945446][ T3150] ? __pfx_rtnl_newlink_create (net/core/rtnetlink.c:3791) 
[ 284.945744][ T3150] ? __dev_get_by_name (net/core/dev.c:865) 
[ 284.946052][ T3150] ? rtnl_dev_get (net/core/rtnetlink.c:3404) 
[ 284.946353][ T3150] ? __pfx_rtnl_dev_get (net/core/rtnetlink.c:3404) 
[ 284.946657][ T3150] ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4056) 
[ 284.946971][ T3150] ? reacquire_held_locks (kernel/locking/lockdep.c:5388) 
[ 284.947277][ T3150] __rtnl_newlink (net/core/rtnetlink.c:3942) 
[ 284.947586][ T3150] rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4058) 
[ 284.947892][ T3150] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 284.948217][ T3150] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/rtnetlink.c:6944) 
[ 284.948519][ T3150] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 284.948822][ T3150] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 284.949137][ T3150] rtnetlink_rcv_msg (net/core/rtnetlink.c:6946) 
[ 284.949447][ T3150] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 284.949753][ T3150] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 284.950068][ T3150] netlink_rcv_skb (net/netlink/af_netlink.c:2551) 
[ 284.950371][ T3150] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 284.950674][ T3150] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2528) 
[ 284.950991][ T3150] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/netlink/af_netlink.c:340) 
[ 284.951291][ T3150] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 ./include/net/netns/generic.h:48 net/netlink/af_netlink.c:333) 
[ 284.951605][ T3150] netlink_unicast (net/netlink/af_netlink.c:1321 net/netlink/af_netlink.c:1346) 
[ 284.951910][ T3150] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1331) 
[ 284.952222][ T3150] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 284.952530][ T3150] netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 284.952836][ T3150] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1815) 
[ 284.953149][ T3150] ? __import_iovec (lib/iov_iter.c:1441 lib/iov_iter.c:1456) 
[ 284.953458][ T3150] ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 284.953767][ T3150] ? __pfx_____sys_sendmsg (net/socket.c:2560) 
[ 284.954075][ T3150] ? __pfx_copy_msghdr_from_user (net/socket.c:2540) 
[ 284.954465][ T3150] ___sys_sendmsg (net/socket.c:2670) 
[ 284.954768][ T3150] ? __pfx____sys_sendmsg (net/socket.c:2657) 
[ 284.955080][ T3150] ? rcu_read_lock_any_held (kernel/rcu/update.c:386 kernel/rcu/update.c:380) 
[ 284.955386][ T3150] ? rcu_read_lock_any_held (kernel/rcu/update.c:386 kernel/rcu/update.c:380) 
[ 284.955683][ T3150] ? validate_chain (kernel/locking/lockdep.c:3804 kernel/locking/lockdep.c:3824 kernel/locking/lockdep.c:3879) 
[ 284.956000][ T3150] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 284.956310][ T3150] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 284.956617][ T3150] __sys_sendmsg (net/socket.c:2700) 
[ 284.956917][ T3150] ? __pfx___sys_sendmsg (net/socket.c:2685) 
[ 284.957237][ T3150] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 284.957539][ T3150] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 284.957842][ T3150] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[  284.958222][ T3150] RIP: 0033:0x7fdba01841e7
[ 284.958539][ T3150] Code: 0e 00 f7 d8 64 89 02 48 c7 c0 ff ff ff ff eb b9 0f 1f 00 f3 0f 1e fa 64 8b 04 25 18 00 00 00 85 c0 75 10 b8 2e 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 51 c3 48 83 ec 28 89 54 24 1c 48 89 74 24 10
All code
========
   0:	0e                   	(bad)
   1:	00 f7                	add    %dh,%bh
   3:	d8 64 89 02          	fsubs  0x2(%rcx,%rcx,4)
   7:	48 c7 c0 ff ff ff ff 	mov    $0xffffffffffffffff,%rax
   e:	eb b9                	jmp    0xffffffffffffffc9
  10:	0f 1f 00             	nopl   (%rax)
  13:	f3 0f 1e fa          	endbr64
  17:	64 8b 04 25 18 00 00 	mov    %fs:0x18,%eax
  1e:	00 
  1f:	85 c0                	test   %eax,%eax
  21:	75 10                	jne    0x33
  23:	b8 2e 00 00 00       	mov    $0x2e,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 00 f0 ff ff    	cmp    $0xfffffffffffff000,%rax		<-- trapping instruction
  30:	77 51                	ja     0x83
  32:	c3                   	ret
  33:	48 83 ec 28          	sub    $0x28,%rsp
  37:	89 54 24 1c          	mov    %edx,0x1c(%rsp)
  3b:	48 89 74 24 10       	mov    %rsi,0x10(%rsp)

Code starting with the faulting instruction
===========================================
   0:	48 3d 00 f0 ff ff    	cmp    $0xfffffffffffff000,%rax
   6:	77 51                	ja     0x59
   8:	c3                   	ret
   9:	48 83 ec 28          	sub    $0x28,%rsp
   d:	89 54 24 1c          	mov    %edx,0x1c(%rsp)
  11:	48 89 74 24 10       	mov    %rsi,0x10(%rsp)
[  284.959620][ T3150] RSP: 002b:00007ffd5dc09408 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[  284.960084][ T3150] RAX: ffffffffffffffda RBX: 00007ffd5dc09b40 RCX: 00007fdba01841e7
[  284.960540][ T3150] RDX: 0000000000000000 RSI: 00007ffd5dc09470 RDI: 0000000000000005
[  284.961001][ T3150] RBP: 0000000000000006 R08: 0000000000000078 R09: 0000000000000000
[  284.961458][ T3150] R10: 00007fdba0212ac0 R11: 0000000000000246 R12: 00007ffd5dc09b78
[  284.961911][ T3150] R13: 00000000686e796d R14: 0000000000499600 R15: 00007ffd5dc09560
| [  303.787478][ T3323] ------------[ cut here ]------------
| [ 303.787782][ T3323] WARNING: CPU: 0 PID: 3323 at ./include/net/netdev_lock.h:17 netif_set_mtu_ext (./include/net/netdev_lock.h:17 ./include/net/netdev_lock.h:15 ./include/net/netdev_lock.h:25 net/core/dev.c:9610) 
| [  303.788392][ T3323] Modules linked in: sctp act_gact cls_flower sch_ingress vxlan ip6_gre gre [last unloaded: test_bpf]
| [  303.789982][ T3323] Tainted: [W]=WARN
[  303.790221][ T3323] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 303.790596][ T3323] RIP: 0010:netif_set_mtu_ext (./include/net/netdev_lock.h:17 ./include/net/netdev_lock.h:15 ./include/net/netdev_lock.h:25 net/core/dev.c:9610) 
[ 303.790908][ T3323] Code: 00 00 8b 05 77 04 bc 02 85 c0 0f 84 52 fe ff ff 48 8d bb c0 0c 00 00 be ff ff ff ff e8 da fc 9b 00 85 c0 0f 85 39 fe ff ff 90 <0f> 0b 90 e9 30 fe ff ff 48 b8 00 00 00 00 00 fc ff df 4c 89 fa 48
All code
========
   0:	00 00                	add    %al,(%rax)
   2:	8b 05 77 04 bc 02    	mov    0x2bc0477(%rip),%eax        # 0x2bc047f
   8:	85 c0                	test   %eax,%eax
   a:	0f 84 52 fe ff ff    	je     0xfffffffffffffe62
  10:	48 8d bb c0 0c 00 00 	lea    0xcc0(%rbx),%rdi
  17:	be ff ff ff ff       	mov    $0xffffffff,%esi
  1c:	e8 da fc 9b 00       	call   0x9bfcfb
  21:	85 c0                	test   %eax,%eax
  23:	0f 85 39 fe ff ff    	jne    0xfffffffffffffe62
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	e9 30 fe ff ff       	jmp    0xfffffffffffffe62
  32:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
  39:	fc ff df 
  3c:	4c 89 fa             	mov    %r15,%rdx
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	e9 30 fe ff ff       	jmp    0xfffffffffffffe38
   8:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
   f:	fc ff df 
  12:	4c 89 fa             	mov    %r15,%rdx
  15:	48                   	rex.W
[  303.791999][ T3323] RSP: 0018:ffffc900066f7080 EFLAGS: 00010246
[  303.792387][ T3323] RAX: 0000000000000000 RBX: ffff888012752000 RCX: 0000000000000001
[  303.792835][ T3323] RDX: 0000000000000000 RSI: ffffffff93510751 RDI: ffffffff92c58280
[  303.793306][ T3323] RBP: ffffc900066f7168 R08: 0000000000000000 R09: 0000000000000000
[  303.793757][ T3323] R10: ffffc900066f7198 R11: ffffffff93f8d1e0 R12: 1ffff92000cdee14
[  303.794226][ T3323] R13: 00000000000005dc R14: ffffc900066f7198 R15: ffff888012752f48
[  303.794678][ T3323] FS:  00007f957c1b3800(0000) GS:ffff8880d7399000(0000) knlGS:0000000000000000
[  303.795212][ T3323] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  303.795590][ T3323] CR2: 0000558271118dec CR3: 00000000098b7004 CR4: 0000000000772ef0
[  303.796055][ T3323] PKRU: 55555554
[  303.796281][ T3323] Call Trace:
[  303.796505][ T3323]  <TASK>
[ 303.796662][ T3323] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 303.796982][ T3323] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 303.797303][ T3323] netif_set_mtu (net/core/dev.c:9652) 
[ 303.797603][ T3323] ? __pfx_netif_set_mtu (net/core/dev.c:9647) 
[ 303.797920][ T3323] dev_set_mtu (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:47 net/core/dev_api.c:249) 
[ 303.798161][ T3323] br_mtu_auto_adjust (net/bridge/br_if.c:525) 
[ 303.798475][ T3323] br_add_if (net/bridge/br_if.c:697) 
[ 303.798714][ T3323] do_set_master (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:41 net/core/rtnetlink.c:2949) 
[ 303.799023][ T3323] ? rtnl_configure_link (net/core/rtnetlink.c:3592) 
[ 303.799328][ T3323] rtnl_newlink_create (net/core/rtnetlink.c:3840) 
[ 303.799634][ T3323] ? __pfx_rtnl_newlink_create (net/core/rtnetlink.c:3791) 
[ 303.799933][ T3323] ? __dev_get_by_name (net/core/dev.c:865) 
[ 303.800246][ T3323] ? rtnl_dev_get (net/core/rtnetlink.c:3404) 
[ 303.800551][ T3323] ? __pfx_rtnl_dev_get (net/core/rtnetlink.c:3404) 
[ 303.800857][ T3323] ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4056) 
[ 303.801174][ T3323] ? reacquire_held_locks (kernel/locking/lockdep.c:5388) 
[ 303.801496][ T3323] __rtnl_newlink (net/core/rtnetlink.c:3942) 
[ 303.801808][ T3323] rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4058) 
[ 303.802125][ T3323] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 303.802440][ T3323] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/rtnetlink.c:6944) 
[ 303.802739][ T3323] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 303.803060][ T3323] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 303.803365][ T3323] rtnetlink_rcv_msg (net/core/rtnetlink.c:6946) 
[ 303.803667][ T3323] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 303.803989][ T3323] netlink_rcv_skb (net/netlink/af_netlink.c:2551) 
[ 303.804292][ T3323] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 303.804595][ T3323] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2528) 
[ 303.804907][ T3323] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/netlink/af_netlink.c:340) 
[ 303.805229][ T3323] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 ./include/net/netns/generic.h:48 net/netlink/af_netlink.c:333) 
[ 303.805543][ T3323] netlink_unicast (net/netlink/af_netlink.c:1321 net/netlink/af_netlink.c:1346) 
[ 303.805846][ T3323] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1331) 
[ 303.806155][ T3323] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 303.806464][ T3323] netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 303.806771][ T3323] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1815) 
[ 303.807082][ T3323] ? __import_iovec (lib/iov_iter.c:1441 lib/iov_iter.c:1456) 
[ 303.807394][ T3323] ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 303.807698][ T3323] ? __pfx_____sys_sendmsg (net/socket.c:2560) 
[ 303.808005][ T3323] ? __pfx_copy_msghdr_from_user (net/socket.c:2540) 
[ 303.808393][ T3323] ___sys_sendmsg (net/socket.c:2670) 
[ 303.808696][ T3323] ? __pfx____sys_sendmsg (net/socket.c:2657) 
[ 303.809014][ T3323] ? __pfx_handle_pte_fault (mm/memory.c:6026) 
[ 303.809319][ T3323] ? reacquire_held_locks (kernel/locking/lockdep.c:5388) 
[ 303.809626][ T3323] ? do_user_addr_fault (arch/x86/mm/fault.c:1327) 
[ 303.809929][ T3323] ? __handle_mm_fault (mm/memory.c:6212) 
[ 303.810238][ T3323] ? __pfx___handle_mm_fault (mm/memory.c:6121) 
[ 303.810538][ T3323] ? lock_vma_under_rcu (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 mm/mmap_lock.c:171) 
[ 303.810860][ T3323] __sys_sendmsg (net/socket.c:2700) 
[ 303.811171][ T3323] ? __pfx___sys_sendmsg (net/socket.c:2685) 
[ 303.811479][ T3323] ? exc_page_fault (./arch/x86/include/asm/irqflags.h:26 ./arch/x86/include/asm/irqflags.h:109 ./arch/x86/include/asm/irqflags.h:151 arch/x86/mm/fault.c:1484 arch/x86/mm/fault.c:1532) 
[ 303.811795][ T3323] ? do_user_addr_fault (./arch/x86/include/asm/atomic.h:93 ./include/linux/atomic/atomic-arch-fallback.h:949 ./include/linux/atomic/atomic-instrumented.h:401 ./include/linux/refcount.h:389 ./include/linux/refcount.h:432 ./include/linux/mmap_lock.h:142 ./include/linux/mmap_lock.h:237 arch/x86/mm/fault.c:1338) 
[ 303.812105][ T3323] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 303.812410][ T3323] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 303.812713][ T3323] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[  303.813104][ T3323] RIP: 0033:0x7f957c3801e7
[ 303.813416][ T3323] Code: 0e 00 f7 d8 64 89 02 48 c7 c0 ff ff ff ff eb b9 0f 1f 00 f3 0f 1e fa 64 8b 04 25 18 00 00 00 85 c0 75 10 b8 2e 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 51 c3 48 83 ec 28 89 54 24 1c 48 89 74 24 10
All code
========
   0:	0e                   	(bad)
   1:	00 f7                	add    %dh,%bh
   3:	d8 64 89 02          	fsubs  0x2(%rcx,%rcx,4)
   7:	48 c7 c0 ff ff ff ff 	mov    $0xffffffffffffffff,%rax
   e:	eb b9                	jmp    0xffffffffffffffc9
  10:	0f 1f 00             	nopl   (%rax)
  13:	f3 0f 1e fa          	endbr64
  17:	64 8b 04 25 18 00 00 	mov    %fs:0x18,%eax
  1e:	00 
  1f:	85 c0                	test   %eax,%eax
  21:	75 10                	jne    0x33
  23:	b8 2e 00 00 00       	mov    $0x2e,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 00 f0 ff ff    	cmp    $0xfffffffffffff000,%rax		<-- trapping instruction
  30:	77 51                	ja     0x83
  32:	c3                   	ret
  33:	48 83 ec 28          	sub    $0x28,%rsp
  37:	89 54 24 1c          	mov    %edx,0x1c(%rsp)
  3b:	48 89 74 24 10       	mov    %rsi,0x10(%rsp)

Code starting with the faulting instruction
===========================================
   0:	48 3d 00 f0 ff ff    	cmp    $0xfffffffffffff000,%rax
   6:	77 51                	ja     0x59
   8:	c3                   	ret
   9:	48 83 ec 28          	sub    $0x28,%rsp
   d:	89 54 24 1c          	mov    %edx,0x1c(%rsp)
  11:	48 89 74 24 10       	mov    %rsi,0x10(%rsp)
[  303.814505][ T3323] RSP: 002b:00007ffcd2688aa8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[  303.814975][ T3323] RAX: ffffffffffffffda RBX: 00007ffcd26891e0 RCX: 00007f957c3801e7
[  303.815425][ T3323] RDX: 0000000000000000 RSI: 00007ffcd2688b10 RDI: 0000000000000005
[  303.815883][ T3323] RBP: 0000000000000006 R08: 000000000000006c R09: 0000000000000000
[  303.816341][ T3323] R10: 00007f957c40eac0 R11: 0000000000000246 R12: 00007ffcd2689218
[  303.816792][ T3323] R13: 00000000686e7980 R14: 0000000000499600 R15: 00007ffcd2688c00
| [  307.766262][ T3353] ------------[ cut here ]------------
| [ 307.766584][ T3353] WARNING: CPU: 3 PID: 3353 at ./include/net/netdev_lock.h:17 netif_set_mtu_ext (./include/net/netdev_lock.h:17 ./include/net/netdev_lock.h:15 ./include/net/netdev_lock.h:25 net/core/dev.c:9610) 
| [  307.767204][ T3353] Modules linked in: sctp act_gact cls_flower sch_ingress vxlan ip6_gre gre [last unloaded: test_bpf]
| [  307.768454][ T3353] Tainted: [W]=WARN
[  307.768686][ T3353] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 307.769078][ T3353] RIP: 0010:netif_set_mtu_ext (./include/net/netdev_lock.h:17 ./include/net/netdev_lock.h:15 ./include/net/netdev_lock.h:25 net/core/dev.c:9610) 
[ 307.769389][ T3353] Code: 00 00 8b 05 77 04 bc 02 85 c0 0f 84 52 fe ff ff 48 8d bb c0 0c 00 00 be ff ff ff ff e8 da fc 9b 00 85 c0 0f 85 39 fe ff ff 90 <0f> 0b 90 e9 30 fe ff ff 48 b8 00 00 00 00 00 fc ff df 4c 89 fa 48
All code
========
   0:	00 00                	add    %al,(%rax)
   2:	8b 05 77 04 bc 02    	mov    0x2bc0477(%rip),%eax        # 0x2bc047f
   8:	85 c0                	test   %eax,%eax
   a:	0f 84 52 fe ff ff    	je     0xfffffffffffffe62
  10:	48 8d bb c0 0c 00 00 	lea    0xcc0(%rbx),%rdi
  17:	be ff ff ff ff       	mov    $0xffffffff,%esi
  1c:	e8 da fc 9b 00       	call   0x9bfcfb
  21:	85 c0                	test   %eax,%eax
  23:	0f 85 39 fe ff ff    	jne    0xfffffffffffffe62
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	e9 30 fe ff ff       	jmp    0xfffffffffffffe62
  32:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
  39:	fc ff df 
  3c:	4c 89 fa             	mov    %r15,%rdx
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	e9 30 fe ff ff       	jmp    0xfffffffffffffe38
   8:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
   f:	fc ff df 
  12:	4c 89 fa             	mov    %r15,%rdx
  15:	48                   	rex.W
[  307.770479][ T3353] RSP: 0018:ffffc900068a7080 EFLAGS: 00010246
[  307.770860][ T3353] RAX: 0000000000000000 RBX: ffff8880059f2000 RCX: 0000000000000001
[  307.771315][ T3353] RDX: 0000000000000000 RSI: ffffffff93510751 RDI: ffffffff92c58280
[  307.771770][ T3353] RBP: ffffc900068a7168 R08: 0000000000000000 R09: 0000000000000000
[  307.772243][ T3353] R10: ffffc900068a7198 R11: ffffffff93f8d1e0 R12: 1ffff92000d14e14
[  307.772692][ T3353] R13: 00000000000005dc R14: ffffc900068a7198 R15: ffff8880059f2f48
[  307.773189][ T3353] FS:  00007fb1cd2bd800(0000) GS:ffff8880d7519000(0000) knlGS:0000000000000000
[  307.773715][ T3353] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  307.774108][ T3353] CR2: 0000558271118dec CR3: 0000000015869004 CR4: 0000000000772ef0
[  307.774562][ T3353] PKRU: 55555554
[  307.774786][ T3353] Call Trace:
[  307.775017][ T3353]  <TASK>
[ 307.775178][ T3353] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 307.775478][ T3353] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 307.775791][ T3353] netif_set_mtu (net/core/dev.c:9652) 
[ 307.776101][ T3353] ? __pfx_netif_set_mtu (net/core/dev.c:9647) 
[ 307.776424][ T3353] dev_set_mtu (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:47 net/core/dev_api.c:249) 
[ 307.776653][ T3353] br_mtu_auto_adjust (net/bridge/br_if.c:525) 
[ 307.776993][ T3353] br_add_if (net/bridge/br_if.c:697) 
[ 307.777236][ T3353] do_set_master (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:41 net/core/rtnetlink.c:2949) 
[ 307.777536][ T3353] ? rtnl_configure_link (net/core/rtnetlink.c:3592) 
[ 307.777839][ T3353] rtnl_newlink_create (net/core/rtnetlink.c:3840) 
[ 307.778152][ T3353] ? __pfx_rtnl_newlink_create (net/core/rtnetlink.c:3791) 
[ 307.778458][ T3353] ? __dev_get_by_name (net/core/dev.c:865) 
[ 307.778759][ T3353] ? rtnl_dev_get (net/core/rtnetlink.c:3404) 
[ 307.779067][ T3353] ? __pfx_rtnl_dev_get (net/core/rtnetlink.c:3404) 
[ 307.779375][ T3353] ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4056) 
[ 307.779672][ T3353] ? reacquire_held_locks (kernel/locking/lockdep.c:5388) 
[ 307.779984][ T3353] __rtnl_newlink (net/core/rtnetlink.c:3942) 
[ 307.780297][ T3353] rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4058) 
[ 307.780604][ T3353] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 307.780920][ T3353] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/rtnetlink.c:6944) 
[ 307.781238][ T3353] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 307.781557][ T3353] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 307.781859][ T3353] rtnetlink_rcv_msg (net/core/rtnetlink.c:6946) 
[ 307.782169][ T3353] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 307.782477][ T3353] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 307.782785][ T3353] netlink_rcv_skb (net/netlink/af_netlink.c:2551) 
[ 307.783098][ T3353] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 307.783408][ T3353] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2528) 
[ 307.783720][ T3353] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/netlink/af_netlink.c:340) 
[ 307.784030][ T3353] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 ./include/net/netns/generic.h:48 net/netlink/af_netlink.c:333) 
[ 307.784334][ T3353] netlink_unicast (net/netlink/af_netlink.c:1321 net/netlink/af_netlink.c:1346) 
[ 307.784640][ T3353] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1331) 
[ 307.784960][ T3353] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 307.785277][ T3353] netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 307.785581][ T3353] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1815) 
[ 307.785882][ T3353] ? __import_iovec (lib/iov_iter.c:1441 lib/iov_iter.c:1456) 
[ 307.786198][ T3353] ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 307.786503][ T3353] ? __pfx_____sys_sendmsg (net/socket.c:2560) 
[ 307.786803][ T3353] ? __pfx_copy_msghdr_from_user (net/socket.c:2540) 
[ 307.787203][ T3353] ___sys_sendmsg (net/socket.c:2670) 
[ 307.787507][ T3353] ? __pfx____sys_sendmsg (net/socket.c:2657) 
[ 307.787814][ T3353] ? __pfx_handle_pte_fault (mm/memory.c:6026) 
[ 307.788124][ T3353] ? reacquire_held_locks (kernel/locking/lockdep.c:5388) 
[ 307.788422][ T3353] ? do_user_addr_fault (arch/x86/mm/fault.c:1327) 
[ 307.788727][ T3353] ? __handle_mm_fault (mm/memory.c:6212) 
[ 307.789045][ T3353] ? __pfx___handle_mm_fault (mm/memory.c:6121) 
[ 307.789344][ T3353] ? lock_vma_under_rcu (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 mm/mmap_lock.c:171) 
[ 307.789669][ T3353] __sys_sendmsg (net/socket.c:2700) 
[ 307.789978][ T3353] ? __pfx___sys_sendmsg (net/socket.c:2685) 
[ 307.790281][ T3353] ? exc_page_fault (./arch/x86/include/asm/irqflags.h:26 ./arch/x86/include/asm/irqflags.h:109 ./arch/x86/include/asm/irqflags.h:151 arch/x86/mm/fault.c:1484 arch/x86/mm/fault.c:1532) 
[ 307.790588][ T3353] ? do_user_addr_fault (./arch/x86/include/asm/atomic.h:93 ./include/linux/atomic/atomic-arch-fallback.h:949 ./include/linux/atomic/atomic-instrumented.h:401 ./include/linux/refcount.h:389 ./include/linux/refcount.h:432 ./include/linux/mmap_lock.h:142 ./include/linux/mmap_lock.h:237 arch/x86/mm/fault.c:1338) 
[ 307.790891][ T3353] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 307.791201][ T3353] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 307.791520][ T3353] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[  307.791900][ T3353] RIP: 0033:0x7fb1cd48a1e7
[ 307.792221][ T3353] Code: 0e 00 f7 d8 64 89 02 48 c7 c0 ff ff ff ff eb b9 0f 1f 00 f3 0f 1e fa 64 8b 04 25 18 00 00 00 85 c0 75 10 b8 2e 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 51 c3 48 83 ec 28 89 54 24 1c 48 89 74 24 10
All code
========
   0:	0e                   	(bad)
   1:	00 f7                	add    %dh,%bh
   3:	d8 64 89 02          	fsubs  0x2(%rcx,%rcx,4)
   7:	48 c7 c0 ff ff ff ff 	mov    $0xffffffffffffffff,%rax
   e:	eb b9                	jmp    0xffffffffffffffc9
  10:	0f 1f 00             	nopl   (%rax)
  13:	f3 0f 1e fa          	endbr64
  17:	64 8b 04 25 18 00 00 	mov    %fs:0x18,%eax
  1e:	00 
  1f:	85 c0                	test   %eax,%eax
  21:	75 10                	jne    0x33
  23:	b8 2e 00 00 00       	mov    $0x2e,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 00 f0 ff ff    	cmp    $0xfffffffffffff000,%rax		<-- trapping instruction
  30:	77 51                	ja     0x83
  32:	c3                   	ret
  33:	48 83 ec 28          	sub    $0x28,%rsp
  37:	89 54 24 1c          	mov    %edx,0x1c(%rsp)
  3b:	48 89 74 24 10       	mov    %rsi,0x10(%rsp)

Code starting with the faulting instruction
===========================================
   0:	48 3d 00 f0 ff ff    	cmp    $0xfffffffffffff000,%rax
   6:	77 51                	ja     0x59
   8:	c3                   	ret
   9:	48 83 ec 28          	sub    $0x28,%rsp
   d:	89 54 24 1c          	mov    %edx,0x1c(%rsp)
  11:	48 89 74 24 10       	mov    %rsi,0x10(%rsp)
[  307.793312][ T3353] RSP: 002b:00007ffd342b3cc8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[  307.793775][ T3353] RAX: ffffffffffffffda RBX: 00007ffd342b4400 RCX: 00007fb1cd48a1e7
[  307.794244][ T3353] RDX: 0000000000000000 RSI: 00007ffd342b3d30 RDI: 0000000000000005
[  307.794701][ T3353] RBP: 0000000000000006 R08: 000000000000006c R09: 0000000000000000
[  307.795208][ T3353] R10: 00007fb1cd518ac0 R11: 0000000000000246 R12: 00007ffd342b4438
[  307.795665][ T3353] R13: 00000000686e7984 R14: 0000000000499600 R15: 00007ffd342b3e20
| [  314.603976][ T3419] ------------[ cut here ]------------
| [ 314.604291][ T3419] WARNING: CPU: 0 PID: 3419 at ./include/net/netdev_lock.h:17 netif_set_mtu_ext (./include/net/netdev_lock.h:17 ./include/net/netdev_lock.h:15 ./include/net/netdev_lock.h:25 net/core/dev.c:9610) 
| [  314.604907][ T3419] Modules linked in: sctp act_gact cls_flower sch_ingress vxlan ip6_gre gre [last unloaded: test_bpf]
| [  314.606148][ T3419] Tainted: [W]=WARN
[  314.606376][ T3419] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 314.606756][ T3419] RIP: 0010:netif_set_mtu_ext (./include/net/netdev_lock.h:17 ./include/net/netdev_lock.h:15 ./include/net/netdev_lock.h:25 net/core/dev.c:9610) 
[ 314.607072][ T3419] Code: 00 00 8b 05 77 04 bc 02 85 c0 0f 84 52 fe ff ff 48 8d bb c0 0c 00 00 be ff ff ff ff e8 da fc 9b 00 85 c0 0f 85 39 fe ff ff 90 <0f> 0b 90 e9 30 fe ff ff 48 b8 00 00 00 00 00 fc ff df 4c 89 fa 48
All code
========
   0:	00 00                	add    %al,(%rax)
   2:	8b 05 77 04 bc 02    	mov    0x2bc0477(%rip),%eax        # 0x2bc047f
   8:	85 c0                	test   %eax,%eax
   a:	0f 84 52 fe ff ff    	je     0xfffffffffffffe62
  10:	48 8d bb c0 0c 00 00 	lea    0xcc0(%rbx),%rdi
  17:	be ff ff ff ff       	mov    $0xffffffff,%esi
  1c:	e8 da fc 9b 00       	call   0x9bfcfb
  21:	85 c0                	test   %eax,%eax
  23:	0f 85 39 fe ff ff    	jne    0xfffffffffffffe62
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	e9 30 fe ff ff       	jmp    0xfffffffffffffe62
  32:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
  39:	fc ff df 
  3c:	4c 89 fa             	mov    %r15,%rdx
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	e9 30 fe ff ff       	jmp    0xfffffffffffffe38
   8:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
   f:	fc ff df 
  12:	4c 89 fa             	mov    %r15,%rdx
  15:	48                   	rex.W
[  314.609065][ T3419] RSP: 0018:ffffc90006bd7080 EFLAGS: 00010246
[  314.609448][ T3419] RAX: 0000000000000000 RBX: ffff88800d902000 RCX: 0000000000000001
[  314.609906][ T3419] RDX: 0000000000000000 RSI: ffffffff93510751 RDI: ffffffff92c58280
[  314.610362][ T3419] RBP: ffffc90006bd7168 R08: 0000000000000000 R09: 0000000000000000
[  314.610813][ T3419] R10: ffffc90006bd7198 R11: ffffffff93f8d1e0 R12: 1ffff92000d7ae14
[  314.611270][ T3419] R13: 00000000000005dc R14: ffffc90006bd7198 R15: ffff88800d902f48
[  314.611733][ T3419] FS:  00007fae6942b800(0000) GS:ffff8880d7399000(0000) knlGS:0000000000000000
[  314.612266][ T3419] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  314.612647][ T3419] CR2: 00007fae69616ba0 CR3: 000000001250c001 CR4: 0000000000772ef0
[  314.613106][ T3419] PKRU: 55555554
[  314.613330][ T3419] Call Trace:
[  314.613556][ T3419]  <TASK>
[ 314.613717][ T3419] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 314.614025][ T3419] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 314.614340][ T3419] netif_set_mtu (net/core/dev.c:9652) 
[ 314.614641][ T3419] ? __pfx_netif_set_mtu (net/core/dev.c:9647) 
[ 314.614966][ T3419] dev_set_mtu (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:47 net/core/dev_api.c:249) 
[ 314.615196][ T3419] br_mtu_auto_adjust (net/bridge/br_if.c:525) 
[ 314.615500][ T3419] br_add_if (net/bridge/br_if.c:697) 
[ 314.615740][ T3419] do_set_master (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:41 net/core/rtnetlink.c:2949) 
[ 314.616056][ T3419] ? rtnl_configure_link (net/core/rtnetlink.c:3592) 
[ 314.616360][ T3419] rtnl_newlink_create (net/core/rtnetlink.c:3840) 
[ 314.616664][ T3419] ? __pfx_rtnl_newlink_create (net/core/rtnetlink.c:3791) 
[ 314.616970][ T3419] ? __dev_get_by_name (net/core/dev.c:865) 
[ 314.617273][ T3419] ? rtnl_dev_get (net/core/rtnetlink.c:3404) 
[ 314.617573][ T3419] ? __pfx_rtnl_dev_get (net/core/rtnetlink.c:3404) 
[ 314.617880][ T3419] ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4056) 
[ 314.618190][ T3419] ? reacquire_held_locks (kernel/locking/lockdep.c:5388) 
[ 314.618497][ T3419] __rtnl_newlink (net/core/rtnetlink.c:3942) 
[ 314.618808][ T3419] rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4058) 
[ 314.619123][ T3419] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 314.619435][ T3419] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/rtnetlink.c:6944) 
[ 314.619733][ T3419] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 314.620046][ T3419] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 314.620347][ T3419] rtnetlink_rcv_msg (net/core/rtnetlink.c:6946) 
[ 314.620654][ T3419] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 314.620970][ T3419] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 314.621277][ T3419] netlink_rcv_skb (net/netlink/af_netlink.c:2551) 
[ 314.621584][ T3419] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 314.621885][ T3419] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2528) 
[ 314.622207][ T3419] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/netlink/af_netlink.c:340) 
[ 314.622506][ T3419] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 ./include/net/netns/generic.h:48 net/netlink/af_netlink.c:333) 
[ 314.622812][ T3419] netlink_unicast (net/netlink/af_netlink.c:1321 net/netlink/af_netlink.c:1346) 
[ 314.623123][ T3419] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1331) 
[ 314.623424][ T3419] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 314.623730][ T3419] netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 314.624043][ T3419] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1815) 
[ 314.624346][ T3419] ? __import_iovec (lib/iov_iter.c:1441 lib/iov_iter.c:1456) 
[ 314.624655][ T3419] ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 314.624971][ T3419] ? __pfx_____sys_sendmsg (net/socket.c:2560) 
[ 314.625274][ T3419] ? __pfx_copy_msghdr_from_user (net/socket.c:2540) 
[ 314.625683][ T3419] ___sys_sendmsg (net/socket.c:2670) 
[ 314.626001][ T3419] ? __pfx____sys_sendmsg (net/socket.c:2657) 
[ 314.626308][ T3419] ? rcu_read_lock_any_held (kernel/rcu/update.c:386 kernel/rcu/update.c:380) 
[ 314.626612][ T3419] ? rcu_read_lock_any_held (kernel/rcu/update.c:386 kernel/rcu/update.c:380) 
[ 314.626908][ T3419] ? validate_chain (kernel/locking/lockdep.c:3804 kernel/locking/lockdep.c:3824 kernel/locking/lockdep.c:3879) 
[ 314.627228][ T3419] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 314.627540][ T3419] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 314.627844][ T3419] __sys_sendmsg (net/socket.c:2700) 
[ 314.628152][ T3419] ? __pfx___sys_sendmsg (net/socket.c:2685) 
[ 314.628469][ T3419] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 314.628772][ T3419] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 314.629081][ T3419] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[  314.629457][ T3419] RIP: 0033:0x7fae695f81e7
[ 314.629767][ T3419] Code: 0e 00 f7 d8 64 89 02 48 c7 c0 ff ff ff ff eb b9 0f 1f 00 f3 0f 1e fa 64 8b 04 25 18 00 00 00 85 c0 75 10 b8 2e 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 51 c3 48 83 ec 28 89 54 24 1c 48 89 74 24 10
All code
========
   0:	0e                   	(bad)
   1:	00 f7                	add    %dh,%bh
   3:	d8 64 89 02          	fsubs  0x2(%rcx,%rcx,4)
   7:	48 c7 c0 ff ff ff ff 	mov    $0xffffffffffffffff,%rax
   e:	eb b9                	jmp    0xffffffffffffffc9
  10:	0f 1f 00             	nopl   (%rax)
  13:	f3 0f 1e fa          	endbr64
  17:	64 8b 04 25 18 00 00 	mov    %fs:0x18,%eax
  1e:	00 
  1f:	85 c0                	test   %eax,%eax
  21:	75 10                	jne    0x33
  23:	b8 2e 00 00 00       	mov    $0x2e,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 00 f0 ff ff    	cmp    $0xfffffffffffff000,%rax		<-- trapping instruction
  30:	77 51                	ja     0x83
  32:	c3                   	ret
  33:	48 83 ec 28          	sub    $0x28,%rsp
  37:	89 54 24 1c          	mov    %edx,0x1c(%rsp)
  3b:	48 89 74 24 10       	mov    %rsi,0x10(%rsp)

Code starting with the faulting instruction
===========================================
   0:	48 3d 00 f0 ff ff    	cmp    $0xfffffffffffff000,%rax
   6:	77 51                	ja     0x59
   8:	c3                   	ret
   9:	48 83 ec 28          	sub    $0x28,%rsp
   d:	89 54 24 1c          	mov    %edx,0x1c(%rsp)
  11:	48 89 74 24 10       	mov    %rsi,0x10(%rsp)
[  314.630849][ T3419] RSP: 002b:00007ffd1123a1b8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[  314.631311][ T3419] RAX: ffffffffffffffda RBX: 00007ffd1123a8f0 RCX: 00007fae695f81e7
[  314.631779][ T3419] RDX: 0000000000000000 RSI: 00007ffd1123a220 RDI: 0000000000000005
[  314.632238][ T3419] RBP: 0000000000000006 R08: 0000000000000078 R09: 0000000000000000
[  314.632693][ T3419] R10: 00007fae69686ac0 R11: 0000000000000246 R12: 00007ffd1123a928
[  314.633149][ T3419] R13: 00000000686e798b R14: 0000000000499600 R15: 00007ffd1123a310
| [  318.875708][ T3449] ------------[ cut here ]------------
| [ 318.876047][ T3449] WARNING: CPU: 2 PID: 3449 at ./include/net/netdev_lock.h:17 netif_set_mtu_ext (./include/net/netdev_lock.h:17 ./include/net/netdev_lock.h:15 ./include/net/netdev_lock.h:25 net/core/dev.c:9610) 
| [  318.876666][ T3449] Modules linked in: sctp act_gact cls_flower sch_ingress vxlan ip6_gre gre [last unloaded: test_bpf]
| [  318.877934][ T3449] Tainted: [W]=WARN
[  318.878198][ T3449] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 318.878602][ T3449] RIP: 0010:netif_set_mtu_ext (./include/net/netdev_lock.h:17 ./include/net/netdev_lock.h:15 ./include/net/netdev_lock.h:25 net/core/dev.c:9610) 
[ 318.878927][ T3449] Code: 00 00 8b 05 77 04 bc 02 85 c0 0f 84 52 fe ff ff 48 8d bb c0 0c 00 00 be ff ff ff ff e8 da fc 9b 00 85 c0 0f 85 39 fe ff ff 90 <0f> 0b 90 e9 30 fe ff ff 48 b8 00 00 00 00 00 fc ff df 4c 89 fa 48
All code
========
   0:	00 00                	add    %al,(%rax)
   2:	8b 05 77 04 bc 02    	mov    0x2bc0477(%rip),%eax        # 0x2bc047f
   8:	85 c0                	test   %eax,%eax
   a:	0f 84 52 fe ff ff    	je     0xfffffffffffffe62
  10:	48 8d bb c0 0c 00 00 	lea    0xcc0(%rbx),%rdi
  17:	be ff ff ff ff       	mov    $0xffffffff,%esi
  1c:	e8 da fc 9b 00       	call   0x9bfcfb
  21:	85 c0                	test   %eax,%eax
  23:	0f 85 39 fe ff ff    	jne    0xfffffffffffffe62
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	e9 30 fe ff ff       	jmp    0xfffffffffffffe62
  32:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
  39:	fc ff df 
  3c:	4c 89 fa             	mov    %r15,%rdx
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	e9 30 fe ff ff       	jmp    0xfffffffffffffe38
   8:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
   f:	fc ff df 
  12:	4c 89 fa             	mov    %r15,%rdx
  15:	48                   	rex.W
[  318.880042][ T3449] RSP: 0018:ffffc90006d37080 EFLAGS: 00010246
[  318.880440][ T3449] RAX: 0000000000000000 RBX: ffff88800eb5a000 RCX: 0000000000000001
[  318.880908][ T3449] RDX: 0000000000000000 RSI: ffffffff93510751 RDI: ffffffff92c58280
[  318.881396][ T3449] RBP: ffffc90006d37168 R08: 0000000000000000 R09: 0000000000000000
[  318.881863][ T3449] R10: ffffc90006d37198 R11: ffffffff93f8d1e0 R12: 1ffff92000da6e14
[  318.882345][ T3449] R13: 00000000000005dc R14: ffffc90006d37198 R15: ffff88800eb5af48
[  318.882812][ T3449] FS:  00007f3dfe533800(0000) GS:ffff8880d7499000(0000) knlGS:0000000000000000
[  318.883359][ T3449] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  318.883776][ T3449] CR2: 00007f3dfe71eba0 CR3: 00000000158e4003 CR4: 0000000000772ef0
[  318.884256][ T3449] PKRU: 55555554
[  318.884497][ T3449] Call Trace:
[  318.884736][ T3449]  <TASK>
[ 318.884906][ T3449] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 318.885238][ T3449] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 318.885565][ T3449] netif_set_mtu (net/core/dev.c:9652) 
[ 318.885878][ T3449] ? __pfx_netif_set_mtu (net/core/dev.c:9647) 
[ 318.886231][ T3449] dev_set_mtu (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:47 net/core/dev_api.c:249) 
[ 318.886475][ T3449] br_mtu_auto_adjust (net/bridge/br_if.c:525) 
[ 318.886793][ T3449] br_add_if (net/bridge/br_if.c:697) 
[ 318.887055][ T3449] do_set_master (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:41 net/core/rtnetlink.c:2949) 
[ 318.887371][ T3449] ? rtnl_configure_link (net/core/rtnetlink.c:3592) 
[ 318.887687][ T3449] rtnl_newlink_create (net/core/rtnetlink.c:3840) 
[ 318.888015][ T3449] ? __pfx_rtnl_newlink_create (net/core/rtnetlink.c:3791) 
[ 318.888326][ T3449] ? __dev_get_by_name (net/core/dev.c:865) 
[ 318.888639][ T3449] ? rtnl_dev_get (net/core/rtnetlink.c:3404) 
[ 318.888960][ T3449] ? __pfx_rtnl_dev_get (net/core/rtnetlink.c:3404) 
[ 318.889281][ T3449] ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4056) 
[ 318.889595][ T3449] ? reacquire_held_locks (kernel/locking/lockdep.c:5388) 
[ 318.889919][ T3449] __rtnl_newlink (net/core/rtnetlink.c:3942) 
[ 318.890268][ T3449] rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4058) 
[ 318.890595][ T3449] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 318.890921][ T3449] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/rtnetlink.c:6944) 
[ 318.891244][ T3449] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 318.891569][ T3449] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 318.891883][ T3449] rtnetlink_rcv_msg (net/core/rtnetlink.c:6946) 
[ 318.892216][ T3449] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 318.892539][ T3449] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 318.892860][ T3449] netlink_rcv_skb (net/netlink/af_netlink.c:2551) 
[ 318.893185][ T3449] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 318.893500][ T3449] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2528) 
[ 318.893824][ T3449] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/netlink/af_netlink.c:340) 
[ 318.894157][ T3449] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 ./include/net/netns/generic.h:48 net/netlink/af_netlink.c:333) 
[ 318.894486][ T3449] netlink_unicast (net/netlink/af_netlink.c:1321 net/netlink/af_netlink.c:1346) 
[ 318.894804][ T3449] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1331) 
[ 318.895126][ T3449] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 318.895446][ T3449] netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 318.895764][ T3449] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1815) 
[ 318.896091][ T3449] ? __import_iovec (lib/iov_iter.c:1441 lib/iov_iter.c:1456) 
[ 318.896415][ T3449] ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 318.896738][ T3449] ? __pfx_____sys_sendmsg (net/socket.c:2560) 
[ 318.897063][ T3449] ? __pfx_copy_msghdr_from_user (net/socket.c:2540) 
[ 318.897464][ T3449] ___sys_sendmsg (net/socket.c:2670) 
[ 318.897783][ T3449] ? __pfx____sys_sendmsg (net/socket.c:2657) 
[ 318.898122][ T3449] ? rcu_read_lock_any_held (kernel/rcu/update.c:386 kernel/rcu/update.c:380) 
[ 318.898439][ T3449] ? rcu_read_lock_any_held (kernel/rcu/update.c:386 kernel/rcu/update.c:380) 
[ 318.898751][ T3449] ? validate_chain (kernel/locking/lockdep.c:3804 kernel/locking/lockdep.c:3824 kernel/locking/lockdep.c:3879) 
[ 318.899087][ T3449] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 318.899412][ T3449] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 318.899729][ T3449] __sys_sendmsg (net/socket.c:2700) 
[ 318.900054][ T3449] ? __pfx___sys_sendmsg (net/socket.c:2685) 
[ 318.900379][ T3449] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 318.900694][ T3449] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 318.901020][ T3449] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[  318.901412][ T3449] RIP: 0033:0x7f3dfe7001e7
[ 318.901738][ T3449] Code: 0e 00 f7 d8 64 89 02 48 c7 c0 ff ff ff ff eb b9 0f 1f 00 f3 0f 1e fa 64 8b 04 25 18 00 00 00 85 c0 75 10 b8 2e 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 51 c3 48 83 ec 28 89 54 24 1c 48 89 74 24 10
All code
========
   0:	0e                   	(bad)
   1:	00 f7                	add    %dh,%bh
   3:	d8 64 89 02          	fsubs  0x2(%rcx,%rcx,4)
   7:	48 c7 c0 ff ff ff ff 	mov    $0xffffffffffffffff,%rax
   e:	eb b9                	jmp    0xffffffffffffffc9
  10:	0f 1f 00             	nopl   (%rax)
  13:	f3 0f 1e fa          	endbr64
  17:	64 8b 04 25 18 00 00 	mov    %fs:0x18,%eax
  1e:	00 
  1f:	85 c0                	test   %eax,%eax
  21:	75 10                	jne    0x33
  23:	b8 2e 00 00 00       	mov    $0x2e,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 00 f0 ff ff    	cmp    $0xfffffffffffff000,%rax		<-- trapping instruction
  30:	77 51                	ja     0x83
  32:	c3                   	ret
  33:	48 83 ec 28          	sub    $0x28,%rsp
  37:	89 54 24 1c          	mov    %edx,0x1c(%rsp)
  3b:	48 89 74 24 10       	mov    %rsi,0x10(%rsp)

Code starting with the faulting instruction
===========================================
   0:	48 3d 00 f0 ff ff    	cmp    $0xfffffffffffff000,%rax
   6:	77 51                	ja     0x59
   8:	c3                   	ret
   9:	48 83 ec 28          	sub    $0x28,%rsp
   d:	89 54 24 1c          	mov    %edx,0x1c(%rsp)
  11:	48 89 74 24 10       	mov    %rsi,0x10(%rsp)
[  318.902842][ T3449] RSP: 002b:00007ffef0202e78 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[  318.903323][ T3449] RAX: ffffffffffffffda RBX: 00007ffef02035b0 RCX: 00007f3dfe7001e7
[  318.903793][ T3449] RDX: 0000000000000000 RSI: 00007ffef0202ee0 RDI: 0000000000000005
[  318.904265][ T3449] RBP: 0000000000000006 R08: 0000000000000078 R09: 0000000000000000
[  318.904728][ T3449] R10: 00007f3dfe78eac0 R11: 0000000000000246 R12: 00007ffef02035e8
[  318.905207][ T3449] R13: 00000000686e798f R14: 0000000000499600 R15: 00007ffef0202fd0
| [  337.450197][ T3622] ------------[ cut here ]------------
| [ 337.450501][ T3622] WARNING: CPU: 3 PID: 3622 at ./include/net/netdev_lock.h:17 netif_set_mtu_ext (./include/net/netdev_lock.h:17 ./include/net/netdev_lock.h:15 ./include/net/netdev_lock.h:25 net/core/dev.c:9610) 
| [  337.451106][ T3622] Modules linked in: sctp act_gact cls_flower sch_ingress vxlan ip6_gre gre [last unloaded: test_bpf]
| [  337.452371][ T3622] Tainted: [W]=WARN
[  337.452609][ T3622] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 337.452995][ T3622] RIP: 0010:netif_set_mtu_ext (./include/net/netdev_lock.h:17 ./include/net/netdev_lock.h:15 ./include/net/netdev_lock.h:25 net/core/dev.c:9610) 
[ 337.453305][ T3622] Code: 00 00 8b 05 77 04 bc 02 85 c0 0f 84 52 fe ff ff 48 8d bb c0 0c 00 00 be ff ff ff ff e8 da fc 9b 00 85 c0 0f 85 39 fe ff ff 90 <0f> 0b 90 e9 30 fe ff ff 48 b8 00 00 00 00 00 fc ff df 4c 89 fa 48
All code
========
   0:	00 00                	add    %al,(%rax)
   2:	8b 05 77 04 bc 02    	mov    0x2bc0477(%rip),%eax        # 0x2bc047f
   8:	85 c0                	test   %eax,%eax
   a:	0f 84 52 fe ff ff    	je     0xfffffffffffffe62
  10:	48 8d bb c0 0c 00 00 	lea    0xcc0(%rbx),%rdi
  17:	be ff ff ff ff       	mov    $0xffffffff,%esi
  1c:	e8 da fc 9b 00       	call   0x9bfcfb
  21:	85 c0                	test   %eax,%eax
  23:	0f 85 39 fe ff ff    	jne    0xfffffffffffffe62
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	e9 30 fe ff ff       	jmp    0xfffffffffffffe62
  32:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
  39:	fc ff df 
  3c:	4c 89 fa             	mov    %r15,%rdx
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	e9 30 fe ff ff       	jmp    0xfffffffffffffe38
   8:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
   f:	fc ff df 
  12:	4c 89 fa             	mov    %r15,%rdx
  15:	48                   	rex.W
[  337.454395][ T3622] RSP: 0018:ffffc900072e7080 EFLAGS: 00010246
[  337.454788][ T3622] RAX: 0000000000000000 RBX: ffff888005f12000 RCX: 0000000000000001
[  337.455246][ T3622] RDX: 0000000000000000 RSI: ffffffff93510751 RDI: ffffffff92c58280
[  337.455697][ T3622] RBP: ffffc900072e7168 R08: 0000000000000000 R09: 0000000000000000
[  337.456161][ T3622] R10: ffffc900072e7198 R11: ffffffff93f8d1e0 R12: 1ffff92000e5ce14
[  337.456619][ T3622] R13: 00000000000005dc R14: ffffc900072e7198 R15: ffff888005f12f48
[  337.457077][ T3622] FS:  00007faa1a637800(0000) GS:ffff8880d7519000(0000) knlGS:0000000000000000
[  337.457603][ T3622] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  337.457990][ T3622] CR2: 000000000043d940 CR3: 0000000002c85001 CR4: 0000000000772ef0
[  337.458443][ T3622] PKRU: 55555554
[  337.458674][ T3622] Call Trace:
[  337.458898][ T3622]  <TASK>
[ 337.459060][ T3622] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 337.459362][ T3622] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 337.459678][ T3622] netif_set_mtu (net/core/dev.c:9652) 
[ 337.459999][ T3622] ? __pfx_netif_set_mtu (net/core/dev.c:9647) 
[ 337.460324][ T3622] dev_set_mtu (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:47 net/core/dev_api.c:249) 
[ 337.460552][ T3622] br_mtu_auto_adjust (net/bridge/br_if.c:525) 
[ 337.460866][ T3622] br_add_if (net/bridge/br_if.c:697) 
[ 337.461113][ T3622] do_set_master (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:41 net/core/rtnetlink.c:2949) 
[ 337.461417][ T3622] ? rtnl_configure_link (net/core/rtnetlink.c:3592) 
[ 337.461730][ T3622] rtnl_newlink_create (net/core/rtnetlink.c:3840) 
[ 337.462041][ T3622] ? __pfx_rtnl_newlink_create (net/core/rtnetlink.c:3791) 
[ 337.462339][ T3622] ? __dev_get_by_name (net/core/dev.c:865) 
[ 337.462640][ T3622] ? rtnl_dev_get (net/core/rtnetlink.c:3404) 
[ 337.462953][ T3622] ? __pfx_rtnl_dev_get (net/core/rtnetlink.c:3404) 
[ 337.463266][ T3622] ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4056) 
[ 337.463565][ T3622] ? reacquire_held_locks (kernel/locking/lockdep.c:5388) 
[ 337.463870][ T3622] __rtnl_newlink (net/core/rtnetlink.c:3942) 
[ 337.464198][ T3622] rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4058) 
[ 337.464505][ T3622] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 337.464817][ T3622] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/rtnetlink.c:6944) 
[ 337.465121][ T3622] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 337.465427][ T3622] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 337.465726][ T3622] rtnetlink_rcv_msg (net/core/rtnetlink.c:6946) 
[ 337.466034][ T3622] ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4475) 
[ 337.466337][ T3622] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 337.466642][ T3622] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 337.466957][ T3622] netlink_rcv_skb (net/netlink/af_netlink.c:2551) 
[ 337.467257][ T3622] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 337.467564][ T3622] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2528) 
[ 337.467875][ T3622] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/netlink/af_netlink.c:340) 
[ 337.468191][ T3622] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 ./include/net/netns/generic.h:48 net/netlink/af_netlink.c:333) 
[ 337.468494][ T3622] netlink_unicast (net/netlink/af_netlink.c:1321 net/netlink/af_netlink.c:1346) 
[ 337.468800][ T3622] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1331) 
[ 337.469110][ T3622] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 337.469417][ T3622] netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 337.469724][ T3622] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1815) 
[ 337.470034][ T3622] ? __import_iovec (lib/iov_iter.c:1441 lib/iov_iter.c:1456) 
[ 337.470343][ T3622] ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 337.470644][ T3622] ? __pfx_____sys_sendmsg (net/socket.c:2560) 
[ 337.470953][ T3622] ? __pfx_copy_msghdr_from_user (net/socket.c:2540) 
[ 337.471344][ T3622] ___sys_sendmsg (net/socket.c:2670) 
[ 337.471656][ T3622] ? __pfx____sys_sendmsg (net/socket.c:2657) 
[ 337.471980][ T3622] ? __pfx_handle_pte_fault (mm/memory.c:6026) 
[ 337.472287][ T3622] ? reacquire_held_locks (kernel/locking/lockdep.c:5388) 
[ 337.472587][ T3622] ? do_user_addr_fault (arch/x86/mm/fault.c:1327) 
[ 337.472889][ T3622] ? __handle_mm_fault (mm/memory.c:6212) 
[ 337.473197][ T3622] ? __pfx___handle_mm_fault (mm/memory.c:6121) 
[ 337.473495][ T3622] ? lock_vma_under_rcu (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 mm/mmap_lock.c:171) 
[ 337.473816][ T3622] __sys_sendmsg (net/socket.c:2700) 
[ 337.474132][ T3622] ? __pfx___sys_sendmsg (net/socket.c:2685) 
[ 337.474436][ T3622] ? exc_page_fault (./arch/x86/include/asm/irqflags.h:26 ./arch/x86/include/asm/irqflags.h:109 ./arch/x86/include/asm/irqflags.h:151 arch/x86/mm/fault.c:1484 arch/x86/mm/fault.c:1532) 
[ 337.474742][ T3622] ? do_user_addr_fault (./arch/x86/include/asm/atomic.h:93 ./include/linux/atomic/atomic-arch-fallback.h:949 ./include/linux/atomic/atomic-instrumented.h:401 ./include/linux/refcount.h:389 ./include/linux/refcount.h:432 ./include/linux/mmap_lock.h:142 ./include/linux/mmap_lock.h:237 arch/x86/mm/fault.c:1338) 
[ 337.475055][ T3622] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 337.475362][ T3622] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 337.475663][ T3622] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[  337.476042][ T3622] RIP: 0033:0x7faa1a8041e7
[ 337.476361][ T3622] Code: 0e 00 f7 d8 64 89 02 48 c7 c0 ff ff ff ff eb b9 0f 1f 00 f3 0f 1e fa 64 8b 04 25 18 00 00 00 85 c0 75 10 b8 2e 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 51 c3 48 83 ec 28 89 54 24 1c 48 89 74 24 10
All code
========
   0:	0e                   	(bad)
   1:	00 f7                	add    %dh,%bh
   3:	d8 64 89 02          	fsubs  0x2(%rcx,%rcx,4)
   7:	48 c7 c0 ff ff ff ff 	mov    $0xffffffffffffffff,%rax
   e:	eb b9                	jmp    0xffffffffffffffc9
  10:	0f 1f 00             	nopl   (%rax)
  13:	f3 0f 1e fa          	endbr64
  17:	64 8b 04 25 18 00 00 	mov    %fs:0x18,%eax
  1e:	00 
  1f:	85 c0                	test   %eax,%eax
  21:	75 10                	jne    0x33
  23:	b8 2e 00 00 00       	mov    $0x2e,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 00 f0 ff ff    	cmp    $0xfffffffffffff000,%rax		<-- trapping instruction
  30:	77 51                	ja     0x83
  32:	c3                   	ret
  33:	48 83 ec 28          	sub    $0x28,%rsp
  37:	89 54 24 1c          	mov    %edx,0x1c(%rsp)
  3b:	48 89 74 24 10       	mov    %rsi,0x10(%rsp)

Code starting with the faulting instruction
===========================================
   0:	48 3d 00 f0 ff ff    	cmp    $0xfffffffffffff000,%rax
   6:	77 51                	ja     0x59
   8:	c3                   	ret
   9:	48 83 ec 28          	sub    $0x28,%rsp
   d:	89 54 24 1c          	mov    %edx,0x1c(%rsp)
  11:	48 89 74 24 10       	mov    %rsi,0x10(%rsp)
[  337.477437][ T3622] RSP: 002b:00007ffde67f8d58 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[  337.477890][ T3622] RAX: ffffffffffffffda RBX: 00007ffde67f9490 RCX: 00007faa1a8041e7
[  337.478350][ T3622] RDX: 0000000000000000 RSI: 00007ffde67f8dc0 RDI: 0000000000000005
[  337.478802][ T3622] RBP: 0000000000000006 R08: 000000000000006c R09: 0000000000000000
[  337.479257][ T3622] R10: 00007faa1a892ac0 R11: 0000000000000246 R12: 00007ffde67f94c8
[  337.479708][ T3622] R13: 00000000686e79a2 R14: 0000000000499600 R15: 00007ffde67f8eb0
| [  341.417571][ T3652] ------------[ cut here ]------------
| [ 341.417883][ T3652] WARNING: CPU: 1 PID: 3652 at ./include/net/netdev_lock.h:17 netif_set_mtu_ext (./include/net/netdev_lock.h:17 ./include/net/netdev_lock.h:15 ./include/net/netdev_lock.h:25 net/core/dev.c:9610) 
| [  341.418486][ T3652] Modules linked in: sctp act_gact cls_flower sch_ingress vxlan ip6_gre gre [last unloaded: test_bpf]
| [  341.419732][ T3652] Tainted: [W]=WARN
[  341.419978][ T3652] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 341.420367][ T3652] RIP: 0010:netif_set_mtu_ext (./include/net/netdev_lock.h:17 ./include/net/netdev_lock.h:15 ./include/net/netdev_lock.h:25 net/core/dev.c:9610) 
[ 341.420681][ T3652] Code: 00 00 8b 05 77 04 bc 02 85 c0 0f 84 52 fe ff ff 48 8d bb c0 0c 00 00 be ff ff ff ff e8 da fc 9b 00 85 c0 0f 85 39 fe ff ff 90 <0f> 0b 90 e9 30 fe ff ff 48 b8 00 00 00 00 00 fc ff df 4c 89 fa 48
All code
========
   0:	00 00                	add    %al,(%rax)
   2:	8b 05 77 04 bc 02    	mov    0x2bc0477(%rip),%eax        # 0x2bc047f
   8:	85 c0                	test   %eax,%eax
   a:	0f 84 52 fe ff ff    	je     0xfffffffffffffe62
  10:	48 8d bb c0 0c 00 00 	lea    0xcc0(%rbx),%rdi
  17:	be ff ff ff ff       	mov    $0xffffffff,%esi
  1c:	e8 da fc 9b 00       	call   0x9bfcfb
  21:	85 c0                	test   %eax,%eax
  23:	0f 85 39 fe ff ff    	jne    0xfffffffffffffe62
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	e9 30 fe ff ff       	jmp    0xfffffffffffffe62
  32:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
  39:	fc ff df 
  3c:	4c 89 fa             	mov    %r15,%rdx
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	e9 30 fe ff ff       	jmp    0xfffffffffffffe38
   8:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
   f:	fc ff df 
  12:	4c 89 fa             	mov    %r15,%rdx
  15:	48                   	rex.W
[  341.421782][ T3652] RSP: 0018:ffffc90007437080 EFLAGS: 00010246
[  341.422179][ T3652] RAX: 0000000000000000 RBX: ffff88800d902000 RCX: 0000000000000001
[  341.422639][ T3652] RDX: 0000000000000000 RSI: ffffffff93510751 RDI: ffffffff92c58280
[  341.423102][ T3652] RBP: ffffc90007437168 R08: 0000000000000000 R09: 0000000000000000
[  341.423564][ T3652] R10: ffffc90007437198 R11: ffffffff93f8d1e0 R12: 1ffff92000e86e14
[  341.424037][ T3652] R13: 00000000000005dc R14: ffffc90007437198 R15: ffff88800d902f48
[  341.424508][ T3652] FS:  00007f222ffdd800(0000) GS:ffff8880d7419000(0000) knlGS:0000000000000000
[  341.425190][ T3652] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  341.425577][ T3652] CR2: 000000000043d940 CR3: 000000000c246003 CR4: 0000000000772ef0
[  341.426187][ T3652] PKRU: 55555554
[  341.426425][ T3652] Call Trace:
[  341.426650][ T3652]  <TASK>
[ 341.426803][ T3652] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 341.427246][ T3652] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 341.427562][ T3652] netif_set_mtu (net/core/dev.c:9652) 
[ 341.427863][ T3652] ? __pfx_netif_set_mtu (net/core/dev.c:9647) 
[ 341.428347][ T3652] dev_set_mtu (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:47 net/core/dev_api.c:249) 
[ 341.428578][ T3652] br_mtu_auto_adjust (net/bridge/br_if.c:525) 
[ 341.428883][ T3652] br_add_if (net/bridge/br_if.c:697) 
[ 341.429265][ T3652] do_set_master (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:41 net/core/rtnetlink.c:2949) 
[ 341.429567][ T3652] ? rtnl_configure_link (net/core/rtnetlink.c:3592) 
[ 341.429872][ T3652] rtnl_newlink_create (net/core/rtnetlink.c:3840) 
[ 341.430325][ T3652] ? __pfx_rtnl_newlink_create (net/core/rtnetlink.c:3791) 
[ 341.430626][ T3652] ? __dev_get_by_name (net/core/dev.c:865) 
[ 341.430931][ T3652] ? rtnl_dev_get (net/core/rtnetlink.c:3404) 
[ 341.431282][ T3652] ? __pfx_rtnl_dev_get (net/core/rtnetlink.c:3404) 
[ 341.431604][ T3652] ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4056) 
[ 341.431904][ T3652] ? reacquire_held_locks (kernel/locking/lockdep.c:5388) 
[ 341.432232][ T3652] __rtnl_newlink (net/core/rtnetlink.c:3942) 
[ 341.432549][ T3652] rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4058) 
[ 341.432856][ T3652] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 341.433179][ T3652] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/rtnetlink.c:6944) 
[ 341.433477][ T3652] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 341.433778][ T3652] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 341.434099][ T3652] rtnetlink_rcv_msg (net/core/rtnetlink.c:6946) 
[ 341.434408][ T3652] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 341.434713][ T3652] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 341.435027][ T3652] netlink_rcv_skb (net/netlink/af_netlink.c:2551) 
[ 341.435327][ T3652] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 341.435635][ T3652] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2528) 
[ 341.435969][ T3652] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/netlink/af_netlink.c:340) 
[ 341.436279][ T3652] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 ./include/net/netns/generic.h:48 net/netlink/af_netlink.c:333) 
[ 341.436582][ T3652] netlink_unicast (net/netlink/af_netlink.c:1321 net/netlink/af_netlink.c:1346) 
[ 341.436886][ T3652] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1331) 
[ 341.437194][ T3652] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 341.437498][ T3652] netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 341.437802][ T3652] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1815) 
[ 341.438115][ T3652] ? __import_iovec (lib/iov_iter.c:1441 lib/iov_iter.c:1456) 
[ 341.438428][ T3652] ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 341.438730][ T3652] ? __pfx_____sys_sendmsg (net/socket.c:2560) 
[ 341.439037][ T3652] ? __pfx_copy_msghdr_from_user (net/socket.c:2540) 
[ 341.439423][ T3652] ___sys_sendmsg (net/socket.c:2670) 
[ 341.439726][ T3652] ? __pfx____sys_sendmsg (net/socket.c:2657) 
[ 341.440048][ T3652] ? __pfx_handle_pte_fault (mm/memory.c:6026) 
[ 341.440354][ T3652] ? reacquire_held_locks (kernel/locking/lockdep.c:5388) 
[ 341.440659][ T3652] ? do_user_addr_fault (arch/x86/mm/fault.c:1327) 
[ 341.440974][ T3652] ? __handle_mm_fault (mm/memory.c:6212) 
[ 341.441274][ T3652] ? __pfx___handle_mm_fault (mm/memory.c:6121) 
[ 341.441578][ T3652] ? lock_vma_under_rcu (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 mm/mmap_lock.c:171) 
[ 341.441898][ T3652] __sys_sendmsg (net/socket.c:2700) 
[ 341.442211][ T3652] ? __pfx___sys_sendmsg (net/socket.c:2685) 
[ 341.442517][ T3652] ? exc_page_fault (./arch/x86/include/asm/irqflags.h:26 ./arch/x86/include/asm/irqflags.h:109 ./arch/x86/include/asm/irqflags.h:151 arch/x86/mm/fault.c:1484 arch/x86/mm/fault.c:1532) 
[ 341.442824][ T3652] ? do_user_addr_fault (./arch/x86/include/asm/atomic.h:93 ./include/linux/atomic/atomic-arch-fallback.h:949 ./include/linux/atomic/atomic-instrumented.h:401 ./include/linux/refcount.h:389 ./include/linux/refcount.h:432 ./include/linux/mmap_lock.h:142 ./include/linux/mmap_lock.h:237 arch/x86/mm/fault.c:1338) 
[ 341.443136][ T3652] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 341.443440][ T3652] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 341.443742][ T3652] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[  341.444130][ T3652] RIP: 0033:0x7f22301aa1e7
[ 341.444444][ T3652] Code: 0e 00 f7 d8 64 89 02 48 c7 c0 ff ff ff ff eb b9 0f 1f 00 f3 0f 1e fa 64 8b 04 25 18 00 00 00 85 c0 75 10 b8 2e 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 51 c3 48 83 ec 28 89 54 24 1c 48 89 74 24 10
All code
========
   0:	0e                   	(bad)
   1:	00 f7                	add    %dh,%bh
   3:	d8 64 89 02          	fsubs  0x2(%rcx,%rcx,4)
   7:	48 c7 c0 ff ff ff ff 	mov    $0xffffffffffffffff,%rax
   e:	eb b9                	jmp    0xffffffffffffffc9
  10:	0f 1f 00             	nopl   (%rax)
  13:	f3 0f 1e fa          	endbr64
  17:	64 8b 04 25 18 00 00 	mov    %fs:0x18,%eax
  1e:	00 
  1f:	85 c0                	test   %eax,%eax
  21:	75 10                	jne    0x33
  23:	b8 2e 00 00 00       	mov    $0x2e,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 00 f0 ff ff    	cmp    $0xfffffffffffff000,%rax		<-- trapping instruction
  30:	77 51                	ja     0x83
  32:	c3                   	ret
  33:	48 83 ec 28          	sub    $0x28,%rsp
  37:	89 54 24 1c          	mov    %edx,0x1c(%rsp)
  3b:	48 89 74 24 10       	mov    %rsi,0x10(%rsp)

Code starting with the faulting instruction
===========================================
   0:	48 3d 00 f0 ff ff    	cmp    $0xfffffffffffff000,%rax
   6:	77 51                	ja     0x59
   8:	c3                   	ret
   9:	48 83 ec 28          	sub    $0x28,%rsp
   d:	89 54 24 1c          	mov    %edx,0x1c(%rsp)
  11:	48 89 74 24 10       	mov    %rsi,0x10(%rsp)
[  341.445531][ T3652] RSP: 002b:00007ffe2d763ee8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[  341.445995][ T3652] RAX: ffffffffffffffda RBX: 00007ffe2d764620 RCX: 00007f22301aa1e7
[  341.446447][ T3652] RDX: 0000000000000000 RSI: 00007ffe2d763f50 RDI: 0000000000000005
[  341.446900][ T3652] RBP: 0000000000000006 R08: 000000000000006c R09: 0000000000000000
[  341.447360][ T3652] R10: 00007f2230238ac0 R11: 0000000000000246 R12: 00007ffe2d764658
[  341.447811][ T3652] R13: 00000000686e79a5 R14: 0000000000499600 R15: 00007ffe2d764040
| [  348.211062][ T3718] ------------[ cut here ]------------
| [ 348.211369][ T3718] WARNING: CPU: 0 PID: 3718 at ./include/net/netdev_lock.h:17 netif_set_mtu_ext (./include/net/netdev_lock.h:17 ./include/net/netdev_lock.h:15 ./include/net/netdev_lock.h:25 net/core/dev.c:9610) 
| [  348.212565][ T3718] Modules linked in: sctp act_gact cls_flower sch_ingress vxlan ip6_gre gre [last unloaded: test_bpf]
| [  348.213817][ T3718] Tainted: [W]=WARN
[  348.214057][ T3718] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 348.214439][ T3718] RIP: 0010:netif_set_mtu_ext (./include/net/netdev_lock.h:17 ./include/net/netdev_lock.h:15 ./include/net/netdev_lock.h:25 net/core/dev.c:9610) 
[ 348.214758][ T3718] Code: 00 00 8b 05 77 04 bc 02 85 c0 0f 84 52 fe ff ff 48 8d bb c0 0c 00 00 be ff ff ff ff e8 da fc 9b 00 85 c0 0f 85 39 fe ff ff 90 <0f> 0b 90 e9 30 fe ff ff 48 b8 00 00 00 00 00 fc ff df 4c 89 fa 48
All code
========
   0:	00 00                	add    %al,(%rax)
   2:	8b 05 77 04 bc 02    	mov    0x2bc0477(%rip),%eax        # 0x2bc047f
   8:	85 c0                	test   %eax,%eax
   a:	0f 84 52 fe ff ff    	je     0xfffffffffffffe62
  10:	48 8d bb c0 0c 00 00 	lea    0xcc0(%rbx),%rdi
  17:	be ff ff ff ff       	mov    $0xffffffff,%esi
  1c:	e8 da fc 9b 00       	call   0x9bfcfb
  21:	85 c0                	test   %eax,%eax
  23:	0f 85 39 fe ff ff    	jne    0xfffffffffffffe62
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	e9 30 fe ff ff       	jmp    0xfffffffffffffe62
  32:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
  39:	fc ff df 
  3c:	4c 89 fa             	mov    %r15,%rdx
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	e9 30 fe ff ff       	jmp    0xfffffffffffffe38
   8:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
   f:	fc ff df 
  12:	4c 89 fa             	mov    %r15,%rdx
  15:	48                   	rex.W
[  348.215841][ T3718] RSP: 0018:ffffc900076f7080 EFLAGS: 00010246
[  348.216231][ T3718] RAX: 0000000000000000 RBX: ffff88800ed6a000 RCX: 0000000000000001
[  348.216689][ T3718] RDX: 0000000000000000 RSI: ffffffff93510751 RDI: ffffffff92c58280
[  348.217148][ T3718] RBP: ffffc900076f7168 R08: 0000000000000000 R09: 0000000000000000
[  348.217599][ T3718] R10: ffffc900076f7198 R11: ffffffff93f8d1e0 R12: 1ffff92000edee14
[  348.218059][ T3718] R13: 00000000000005dc R14: ffffc900076f7198 R15: ffff88800ed6af48
[  348.218518][ T3718] FS:  00007f6ddf8f2800(0000) GS:ffff8880d7399000(0000) knlGS:0000000000000000
[  348.219052][ T3718] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  348.219432][ T3718] CR2: 00007f6ddfaddba0 CR3: 000000001270d003 CR4: 0000000000772ef0
[  348.219885][ T3718] PKRU: 55555554
[  348.220119][ T3718] Call Trace:
[  348.220349][ T3718]  <TASK>
[ 348.220505][ T3718] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 348.220816][ T3718] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 348.221140][ T3718] netif_set_mtu (net/core/dev.c:9652) 
[ 348.221449][ T3718] ? __pfx_netif_set_mtu (net/core/dev.c:9647) 
[ 348.221766][ T3718] dev_set_mtu (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:47 net/core/dev_api.c:249) 
[ 348.222006][ T3718] br_mtu_auto_adjust (net/bridge/br_if.c:525) 
[ 348.222313][ T3718] br_add_if (net/bridge/br_if.c:697) 
[ 348.222553][ T3718] do_set_master (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:41 net/core/rtnetlink.c:2949) 
[ 348.222852][ T3718] ? rtnl_configure_link (net/core/rtnetlink.c:3592) 
[ 348.223171][ T3718] rtnl_newlink_create (net/core/rtnetlink.c:3840) 
[ 348.223478][ T3718] ? __pfx_rtnl_newlink_create (net/core/rtnetlink.c:3791) 
[ 348.223778][ T3718] ? __dev_get_by_name (net/core/dev.c:865) 
[ 348.224089][ T3718] ? rtnl_dev_get (net/core/rtnetlink.c:3404) 
[ 348.224391][ T3718] ? __pfx_rtnl_dev_get (net/core/rtnetlink.c:3404) 
[ 348.224697][ T3718] ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4056) 
[ 348.225003][ T3718] ? reacquire_held_locks (kernel/locking/lockdep.c:5388) 
[ 348.225319][ T3718] __rtnl_newlink (net/core/rtnetlink.c:3942) 
[ 348.225631][ T3718] rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4058) 
[ 348.225952][ T3718] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 348.226267][ T3718] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/rtnetlink.c:6944) 
[ 348.226565][ T3718] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 348.226867][ T3718] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 348.227175][ T3718] rtnetlink_rcv_msg (net/core/rtnetlink.c:6946) 
[ 348.227480][ T3718] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 348.227789][ T3718] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 348.228106][ T3718] netlink_rcv_skb (net/netlink/af_netlink.c:2551) 
[ 348.228410][ T3718] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 348.228715][ T3718] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2528) 
[ 348.229038][ T3718] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/netlink/af_netlink.c:340) 
[ 348.229337][ T3718] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 ./include/net/netns/generic.h:48 net/netlink/af_netlink.c:333) 
[ 348.229647][ T3718] netlink_unicast (net/netlink/af_netlink.c:1321 net/netlink/af_netlink.c:1346) 
[ 348.229964][ T3718] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1331) 
[ 348.230264][ T3718] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 348.230571][ T3718] netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 348.230877][ T3718] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1815) 
[ 348.231186][ T3718] ? __import_iovec (lib/iov_iter.c:1441 lib/iov_iter.c:1456) 
[ 348.231503][ T3718] ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 348.231808][ T3718] ? __pfx_____sys_sendmsg (net/socket.c:2560) 
[ 348.232120][ T3718] ? __pfx_copy_msghdr_from_user (net/socket.c:2540) 
[ 348.232509][ T3718] ___sys_sendmsg (net/socket.c:2670) 
[ 348.232814][ T3718] ? __pfx____sys_sendmsg (net/socket.c:2657) 
[ 348.233132][ T3718] ? rcu_read_lock_any_held (kernel/rcu/update.c:386 kernel/rcu/update.c:380) 
[ 348.233438][ T3718] ? rcu_read_lock_any_held (kernel/rcu/update.c:386 kernel/rcu/update.c:380) 
[ 348.233738][ T3718] ? validate_chain (kernel/locking/lockdep.c:3804 kernel/locking/lockdep.c:3824 kernel/locking/lockdep.c:3879) 
[ 348.234051][ T3718] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 348.234373][ T3718] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 348.234681][ T3718] __sys_sendmsg (net/socket.c:2700) 
[ 348.235001][ T3718] ? __pfx___sys_sendmsg (net/socket.c:2685) 
[ 348.235319][ T3718] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 348.235630][ T3718] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 348.235935][ T3718] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[  348.236322][ T3718] RIP: 0033:0x7f6ddfabf1e7
[ 348.236641][ T3718] Code: 0e 00 f7 d8 64 89 02 48 c7 c0 ff ff ff ff eb b9 0f 1f 00 f3 0f 1e fa 64 8b 04 25 18 00 00 00 85 c0 75 10 b8 2e 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 51 c3 48 83 ec 28 89 54 24 1c 48 89 74 24 10
All code
========
   0:	0e                   	(bad)
   1:	00 f7                	add    %dh,%bh
   3:	d8 64 89 02          	fsubs  0x2(%rcx,%rcx,4)
   7:	48 c7 c0 ff ff ff ff 	mov    $0xffffffffffffffff,%rax
   e:	eb b9                	jmp    0xffffffffffffffc9
  10:	0f 1f 00             	nopl   (%rax)
  13:	f3 0f 1e fa          	endbr64
  17:	64 8b 04 25 18 00 00 	mov    %fs:0x18,%eax
  1e:	00 
  1f:	85 c0                	test   %eax,%eax
  21:	75 10                	jne    0x33
  23:	b8 2e 00 00 00       	mov    $0x2e,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 00 f0 ff ff    	cmp    $0xfffffffffffff000,%rax		<-- trapping instruction
  30:	77 51                	ja     0x83
  32:	c3                   	ret
  33:	48 83 ec 28          	sub    $0x28,%rsp
  37:	89 54 24 1c          	mov    %edx,0x1c(%rsp)
  3b:	48 89 74 24 10       	mov    %rsi,0x10(%rsp)

Code starting with the faulting instruction
===========================================
   0:	48 3d 00 f0 ff ff    	cmp    $0xfffffffffffff000,%rax
   6:	77 51                	ja     0x59
   8:	c3                   	ret
   9:	48 83 ec 28          	sub    $0x28,%rsp
   d:	89 54 24 1c          	mov    %edx,0x1c(%rsp)
  11:	48 89 74 24 10       	mov    %rsi,0x10(%rsp)
[  348.237725][ T3718] RSP: 002b:00007ffe25000b78 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[  348.238189][ T3718] RAX: ffffffffffffffda RBX: 00007ffe250012b0 RCX: 00007f6ddfabf1e7
[  348.238646][ T3718] RDX: 0000000000000000 RSI: 00007ffe25000be0 RDI: 0000000000000005
[  348.239109][ T3718] RBP: 0000000000000006 R08: 0000000000000078 R09: 0000000000000000
[  348.239563][ T3718] R10: 00007f6ddfb4dac0 R11: 0000000000000246 R12: 00007ffe250012e8
[  348.240048][ T3718] R13: 00000000686e79ac R14: 0000000000499600 R15: 00007ffe25000cd0
| [  352.242335][ T3748] ------------[ cut here ]------------
| [ 352.242655][ T3748] WARNING: CPU: 0 PID: 3748 at ./include/net/netdev_lock.h:17 netif_set_mtu_ext (./include/net/netdev_lock.h:17 ./include/net/netdev_lock.h:15 ./include/net/netdev_lock.h:25 net/core/dev.c:9610) 
| [  352.243287][ T3748] Modules linked in: sctp act_gact cls_flower sch_ingress vxlan ip6_gre gre [last unloaded: test_bpf]
| [  352.244616][ T3748] Tainted: [W]=WARN
[  352.244858][ T3748] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 352.245268][ T3748] RIP: 0010:netif_set_mtu_ext (./include/net/netdev_lock.h:17 ./include/net/netdev_lock.h:15 ./include/net/netdev_lock.h:25 net/core/dev.c:9610) 
[ 352.245595][ T3748] Code: 00 00 8b 05 77 04 bc 02 85 c0 0f 84 52 fe ff ff 48 8d bb c0 0c 00 00 be ff ff ff ff e8 da fc 9b 00 85 c0 0f 85 39 fe ff ff 90 <0f> 0b 90 e9 30 fe ff ff 48 b8 00 00 00 00 00 fc ff df 4c 89 fa 48
All code
========
   0:	00 00                	add    %al,(%rax)
   2:	8b 05 77 04 bc 02    	mov    0x2bc0477(%rip),%eax        # 0x2bc047f
   8:	85 c0                	test   %eax,%eax
   a:	0f 84 52 fe ff ff    	je     0xfffffffffffffe62
  10:	48 8d bb c0 0c 00 00 	lea    0xcc0(%rbx),%rdi
  17:	be ff ff ff ff       	mov    $0xffffffff,%esi
  1c:	e8 da fc 9b 00       	call   0x9bfcfb
  21:	85 c0                	test   %eax,%eax
  23:	0f 85 39 fe ff ff    	jne    0xfffffffffffffe62
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	e9 30 fe ff ff       	jmp    0xfffffffffffffe62
  32:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
  39:	fc ff df 
  3c:	4c 89 fa             	mov    %r15,%rdx
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	e9 30 fe ff ff       	jmp    0xfffffffffffffe38
   8:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
   f:	fc ff df 
  12:	4c 89 fa             	mov    %r15,%rdx
  15:	48                   	rex.W
[  352.246749][ T3748] RSP: 0018:ffffc900078a7080 EFLAGS: 00010246
[  352.247163][ T3748] RAX: 0000000000000000 RBX: ffff88800ee12000 RCX: 0000000000000001
[  352.247641][ T3748] RDX: 0000000000000000 RSI: ffffffff93510751 RDI: ffffffff92c58280
[  352.248144][ T3748] RBP: ffffc900078a7168 R08: 0000000000000000 R09: 0000000000000000
[  352.248622][ T3748] R10: ffffc900078a7198 R11: ffffffff93f8d1e0 R12: 1ffff92000f14e14
[  352.249899][ T3748] R13: 00000000000005dc R14: ffffc900078a7198 R15: ffff88800ee12f48
[  352.250391][ T3748] FS:  00007fbb06b3a800(0000) GS:ffff8880d7399000(0000) knlGS:0000000000000000
[  352.250958][ T3748] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  352.251367][ T3748] CR2: 00007fbb06d25ba0 CR3: 0000000015aab004 CR4: 0000000000772ef0
[  352.251858][ T3748] PKRU: 55555554
[  352.252115][ T3748] Call Trace:
[  352.252353][ T3748]  <TASK>
[ 352.252517][ T3748] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 352.252836][ T3748] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 352.253175][ T3748] netif_set_mtu (net/core/dev.c:9652) 
[ 352.253490][ T3748] ? __pfx_netif_set_mtu (net/core/dev.c:9647) 
[ 352.253818][ T3748] dev_set_mtu (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:47 net/core/dev_api.c:249) 
[ 352.254072][ T3748] br_mtu_auto_adjust (net/bridge/br_if.c:525) 
[ 352.254394][ T3748] br_add_if (net/bridge/br_if.c:697) 
[ 352.254643][ T3748] do_set_master (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:41 net/core/rtnetlink.c:2949) 
[ 352.254967][ T3748] ? rtnl_configure_link (net/core/rtnetlink.c:3592) 
[ 352.255287][ T3748] rtnl_newlink_create (net/core/rtnetlink.c:3840) 
[ 352.255606][ T3748] ? __pfx_rtnl_newlink_create (net/core/rtnetlink.c:3791) 
[ 352.255916][ T3748] ? __dev_get_by_name (net/core/dev.c:865) 
[ 352.256255][ T3748] ? rtnl_dev_get (net/core/rtnetlink.c:3404) 
[ 352.256577][ T3748] ? __pfx_rtnl_dev_get (net/core/rtnetlink.c:3404) 
[ 352.256894][ T3748] ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4056) 
[ 352.257217][ T3748] ? reacquire_held_locks (kernel/locking/lockdep.c:5388) 
[ 352.257535][ T3748] __rtnl_newlink (net/core/rtnetlink.c:3942) 
[ 352.257863][ T3748] rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4058) 
[ 352.258194][ T3748] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 352.258523][ T3748] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/rtnetlink.c:6944) 
[ 352.258839][ T3748] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 352.259166][ T3748] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 352.259483][ T3748] rtnetlink_rcv_msg (net/core/rtnetlink.c:6946) 
[ 352.259800][ T3748] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 352.260139][ T3748] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 352.260470][ T3748] netlink_rcv_skb (net/netlink/af_netlink.c:2551) 
[ 352.260785][ T3748] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 352.261117][ T3748] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2528) 
[ 352.261448][ T3748] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/netlink/af_netlink.c:340) 
[ 352.261764][ T3748] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 ./include/net/netns/generic.h:48 net/netlink/af_netlink.c:333) 
[ 352.262091][ T3748] netlink_unicast (net/netlink/af_netlink.c:1321 net/netlink/af_netlink.c:1346) 
[ 352.262411][ T3748] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1331) 
[ 352.262726][ T3748] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 352.263054][ T3748] netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 352.263380][ T3748] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1815) 
[ 352.263695][ T3748] ? __import_iovec (lib/iov_iter.c:1441 lib/iov_iter.c:1456) 
[ 352.264038][ T3748] ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 352.264363][ T3748] ? __pfx_____sys_sendmsg (net/socket.c:2560) 
[ 352.264677][ T3748] ? __pfx_copy_msghdr_from_user (net/socket.c:2540) 
[ 352.265093][ T3748] ___sys_sendmsg (net/socket.c:2670) 
[ 352.265413][ T3748] ? __pfx____sys_sendmsg (net/socket.c:2657) 
[ 352.265736][ T3748] ? rcu_read_lock_any_held (kernel/rcu/update.c:386 kernel/rcu/update.c:380) 
[ 352.266066][ T3748] ? rcu_read_lock_any_held (kernel/rcu/update.c:386 kernel/rcu/update.c:380) 
[ 352.266382][ T3748] ? validate_chain (kernel/locking/lockdep.c:3804 kernel/locking/lockdep.c:3824 kernel/locking/lockdep.c:3879) 
[ 352.266702][ T3748] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 352.267034][ T3748] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 352.267356][ T3748] __sys_sendmsg (net/socket.c:2700) 
[ 352.267671][ T3748] ? __pfx___sys_sendmsg (net/socket.c:2685) 
[ 352.268019][ T3748] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 352.268346][ T3748] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 352.268668][ T3748] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[  352.269069][ T3748] RIP: 0033:0x7fbb06d071e7
[ 352.269396][ T3748] Code: 0e 00 f7 d8 64 89 02 48 c7 c0 ff ff ff ff eb b9 0f 1f 00 f3 0f 1e fa 64 8b 04 25 18 00 00 00 85 c0 75 10 b8 2e 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 51 c3 48 83 ec 28 89 54 24 1c 48 89 74 24 10
All code
========
   0:	0e                   	(bad)
   1:	00 f7                	add    %dh,%bh
   3:	d8 64 89 02          	fsubs  0x2(%rcx,%rcx,4)
   7:	48 c7 c0 ff ff ff ff 	mov    $0xffffffffffffffff,%rax
   e:	eb b9                	jmp    0xffffffffffffffc9
  10:	0f 1f 00             	nopl   (%rax)
  13:	f3 0f 1e fa          	endbr64
  17:	64 8b 04 25 18 00 00 	mov    %fs:0x18,%eax
  1e:	00 
  1f:	85 c0                	test   %eax,%eax
  21:	75 10                	jne    0x33
  23:	b8 2e 00 00 00       	mov    $0x2e,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 00 f0 ff ff    	cmp    $0xfffffffffffff000,%rax		<-- trapping instruction
  30:	77 51                	ja     0x83
  32:	c3                   	ret
  33:	48 83 ec 28          	sub    $0x28,%rsp
  37:	89 54 24 1c          	mov    %edx,0x1c(%rsp)
  3b:	48 89 74 24 10       	mov    %rsi,0x10(%rsp)

Code starting with the faulting instruction
===========================================
   0:	48 3d 00 f0 ff ff    	cmp    $0xfffffffffffff000,%rax
   6:	77 51                	ja     0x59
   8:	c3                   	ret
   9:	48 83 ec 28          	sub    $0x28,%rsp
   d:	89 54 24 1c          	mov    %edx,0x1c(%rsp)
  11:	48 89 74 24 10       	mov    %rsi,0x10(%rsp)
[  352.270530][ T3748] RSP: 002b:00007ffce72b4be8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[  352.271015][ T3748] RAX: ffffffffffffffda RBX: 00007ffce72b5320 RCX: 00007fbb06d071e7
[  352.271494][ T3748] RDX: 0000000000000000 RSI: 00007ffce72b4c50 RDI: 0000000000000005
[  352.271988][ T3748] RBP: 0000000000000006 R08: 0000000000000078 R09: 0000000000000000
[  352.272464][ T3748] R10: 00007fbb06d95ac0 R11: 0000000000000246 R12: 00007ffce72b5358
[  352.272937][ T3748] R13: 00000000686e79b0 R14: 0000000000499600 R15: 00007ffce72b4d40
| [  371.272097][ T3921] ------------[ cut here ]------------
| [ 371.272413][ T3921] WARNING: CPU: 0 PID: 3921 at ./include/net/netdev_lock.h:17 netif_set_mtu_ext (./include/net/netdev_lock.h:17 ./include/net/netdev_lock.h:15 ./include/net/netdev_lock.h:25 net/core/dev.c:9610) 
| [  371.273054][ T3921] Modules linked in: sctp act_gact cls_flower sch_ingress vxlan ip6_gre gre [last unloaded: test_bpf]
| [  371.274338][ T3921] Tainted: [W]=WARN
[  371.274569][ T3921] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 371.274993][ T3921] RIP: 0010:netif_set_mtu_ext (./include/net/netdev_lock.h:17 ./include/net/netdev_lock.h:15 ./include/net/netdev_lock.h:25 net/core/dev.c:9610) 
[ 371.275322][ T3921] Code: 00 00 8b 05 77 04 bc 02 85 c0 0f 84 52 fe ff ff 48 8d bb c0 0c 00 00 be ff ff ff ff e8 da fc 9b 00 85 c0 0f 85 39 fe ff ff 90 <0f> 0b 90 e9 30 fe ff ff 48 b8 00 00 00 00 00 fc ff df 4c 89 fa 48
All code
========
   0:	00 00                	add    %al,(%rax)
   2:	8b 05 77 04 bc 02    	mov    0x2bc0477(%rip),%eax        # 0x2bc047f
   8:	85 c0                	test   %eax,%eax
   a:	0f 84 52 fe ff ff    	je     0xfffffffffffffe62
  10:	48 8d bb c0 0c 00 00 	lea    0xcc0(%rbx),%rdi
  17:	be ff ff ff ff       	mov    $0xffffffff,%esi
  1c:	e8 da fc 9b 00       	call   0x9bfcfb
  21:	85 c0                	test   %eax,%eax
  23:	0f 85 39 fe ff ff    	jne    0xfffffffffffffe62
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	e9 30 fe ff ff       	jmp    0xfffffffffffffe62
  32:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
  39:	fc ff df 
  3c:	4c 89 fa             	mov    %r15,%rdx
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	e9 30 fe ff ff       	jmp    0xfffffffffffffe38
   8:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
   f:	fc ff df 
  12:	4c 89 fa             	mov    %r15,%rdx
  15:	48                   	rex.W
[  371.276471][ T3921] RSP: 0018:ffffc90007da7080 EFLAGS: 00010246
[  371.276880][ T3921] RAX: 0000000000000000 RBX: ffff888013ac2000 RCX: 0000000000000001
[  371.277372][ T3921] RDX: 0000000000000000 RSI: ffffffff93510751 RDI: ffffffff92c58280
[  371.277839][ T3921] RBP: ffffc90007da7168 R08: 0000000000000000 R09: 0000000000000000
[  371.278317][ T3921] R10: ffffc90007da7198 R11: ffffffff93f8d1e0 R12: 1ffff92000fb4e14
[  371.278772][ T3921] R13: 00000000000005dc R14: ffffc90007da7198 R15: ffff888013ac2f48
[  371.279294][ T3921] FS:  00007feae2094800(0000) GS:ffff8880d7399000(0000) knlGS:0000000000000000
[  371.279876][ T3921] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  371.280293][ T3921] CR2: 00007feae22efb78 CR3: 000000000c398003 CR4: 0000000000772ef0
[  371.280806][ T3921] PKRU: 55555554
[  371.281076][ T3921] Call Trace:
[  371.281319][ T3921]  <TASK>
[ 371.281494][ T3921] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 371.281812][ T3921] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 371.282164][ T3921] netif_set_mtu (net/core/dev.c:9652) 
[ 371.282487][ T3921] ? __pfx_netif_set_mtu (net/core/dev.c:9647) 
[ 371.282822][ T3921] dev_set_mtu (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:47 net/core/dev_api.c:249) 
[ 371.283150][ T3921] br_mtu_auto_adjust (net/bridge/br_if.c:525) 
[ 371.283480][ T3921] br_add_if (net/bridge/br_if.c:697) 
[ 371.283734][ T3921] do_set_master (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:41 net/core/rtnetlink.c:2949) 
[ 371.284088][ T3921] ? rtnl_configure_link (net/core/rtnetlink.c:3592) 
[ 371.284426][ T3921] rtnl_newlink_create (net/core/rtnetlink.c:3840) 
[ 371.284749][ T3921] ? __pfx_rtnl_newlink_create (net/core/rtnetlink.c:3791) 
[ 371.285095][ T3921] ? __dev_get_by_name (net/core/dev.c:865) 
[ 371.285421][ T3921] ? rtnl_dev_get (net/core/rtnetlink.c:3404) 
[ 371.285738][ T3921] ? __pfx_rtnl_dev_get (net/core/rtnetlink.c:3404) 
[ 371.286088][ T3921] ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4056) 
[ 371.286405][ T3921] ? reacquire_held_locks (kernel/locking/lockdep.c:5388) 
[ 371.286737][ T3921] __rtnl_newlink (net/core/rtnetlink.c:3942) 
[ 371.287109][ T3921] rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4058) 
[ 371.287437][ T3921] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 371.287769][ T3921] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/rtnetlink.c:6944) 
[ 371.288116][ T3921] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 371.288441][ T3921] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 371.288763][ T3921] rtnetlink_rcv_msg (net/core/rtnetlink.c:6946) 
[ 371.289112][ T3921] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 371.289442][ T3921] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 371.289765][ T3921] netlink_rcv_skb (net/netlink/af_netlink.c:2551) 
[ 371.290111][ T3921] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 371.290434][ T3921] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2528) 
[ 371.290765][ T3921] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/netlink/af_netlink.c:340) 
[ 371.291129][ T3921] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 ./include/net/netns/generic.h:48 net/netlink/af_netlink.c:333) 
[ 371.291501][ T3921] netlink_unicast (net/netlink/af_netlink.c:1321 net/netlink/af_netlink.c:1346) 
[ 371.291836][ T3921] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1331) 
[ 371.292190][ T3921] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 371.292519][ T3921] netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 371.292844][ T3921] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1815) 
[ 371.293189][ T3921] ? __import_iovec (lib/iov_iter.c:1441 lib/iov_iter.c:1456) 
[ 371.293506][ T3921] ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 371.293829][ T3921] ? __pfx_____sys_sendmsg (net/socket.c:2560) 
[ 371.294174][ T3921] ? __pfx_copy_msghdr_from_user (net/socket.c:2540) 
[ 371.294586][ T3921] ___sys_sendmsg (net/socket.c:2670) 
[ 371.294936][ T3921] ? __pfx____sys_sendmsg (net/socket.c:2657) 
[ 371.295282][ T3921] ? __pfx_handle_pte_fault (mm/memory.c:6026) 
[ 371.295604][ T3921] ? reacquire_held_locks (kernel/locking/lockdep.c:5388) 
[ 371.295936][ T3921] ? do_user_addr_fault (arch/x86/mm/fault.c:1327) 
[ 371.296279][ T3921] ? __handle_mm_fault (mm/memory.c:6212) 
[ 371.296634][ T3921] ? __pfx___handle_mm_fault (mm/memory.c:6121) 
[ 371.296978][ T3921] ? lock_vma_under_rcu (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 mm/mmap_lock.c:171) 
[ 371.297309][ T3921] __sys_sendmsg (net/socket.c:2700) 
[ 371.297622][ T3921] ? __pfx___sys_sendmsg (net/socket.c:2685) 
[ 371.297967][ T3921] ? exc_page_fault (./arch/x86/include/asm/irqflags.h:26 ./arch/x86/include/asm/irqflags.h:109 ./arch/x86/include/asm/irqflags.h:151 arch/x86/mm/fault.c:1484 arch/x86/mm/fault.c:1532) 
[ 371.298298][ T3921] ? do_user_addr_fault (./arch/x86/include/asm/atomic.h:93 ./include/linux/atomic/atomic-arch-fallback.h:949 ./include/linux/atomic/atomic-instrumented.h:401 ./include/linux/refcount.h:389 ./include/linux/refcount.h:432 ./include/linux/mmap_lock.h:142 ./include/linux/mmap_lock.h:237 arch/x86/mm/fault.c:1338) 
[ 371.298622][ T3921] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 371.298990][ T3921] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 371.299318][ T3921] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[  371.299713][ T3921] RIP: 0033:0x7feae22611e7
[ 371.300071][ T3921] Code: 0e 00 f7 d8 64 89 02 48 c7 c0 ff ff ff ff eb b9 0f 1f 00 f3 0f 1e fa 64 8b 04 25 18 00 00 00 85 c0 75 10 b8 2e 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 51 c3 48 83 ec 28 89 54 24 1c 48 89 74 24 10
All code
========
   0:	0e                   	(bad)
   1:	00 f7                	add    %dh,%bh
   3:	d8 64 89 02          	fsubs  0x2(%rcx,%rcx,4)
   7:	48 c7 c0 ff ff ff ff 	mov    $0xffffffffffffffff,%rax
   e:	eb b9                	jmp    0xffffffffffffffc9
  10:	0f 1f 00             	nopl   (%rax)
  13:	f3 0f 1e fa          	endbr64
  17:	64 8b 04 25 18 00 00 	mov    %fs:0x18,%eax
  1e:	00 
  1f:	85 c0                	test   %eax,%eax
  21:	75 10                	jne    0x33
  23:	b8 2e 00 00 00       	mov    $0x2e,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 00 f0 ff ff    	cmp    $0xfffffffffffff000,%rax		<-- trapping instruction
  30:	77 51                	ja     0x83
  32:	c3                   	ret
  33:	48 83 ec 28          	sub    $0x28,%rsp
  37:	89 54 24 1c          	mov    %edx,0x1c(%rsp)
  3b:	48 89 74 24 10       	mov    %rsi,0x10(%rsp)

Code starting with the faulting instruction
===========================================
   0:	48 3d 00 f0 ff ff    	cmp    $0xfffffffffffff000,%rax
   6:	77 51                	ja     0x59
   8:	c3                   	ret
   9:	48 83 ec 28          	sub    $0x28,%rsp
   d:	89 54 24 1c          	mov    %edx,0x1c(%rsp)
  11:	48 89 74 24 10       	mov    %rsi,0x10(%rsp)
[  371.301245][ T3921] RSP: 002b:00007ffd9640d498 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[  371.301788][ T3921] RAX: ffffffffffffffda RBX: 00007ffd9640dbd0 RCX: 00007feae22611e7
[  371.302296][ T3921] RDX: 0000000000000000 RSI: 00007ffd9640d500 RDI: 0000000000000005
[  371.302778][ T3921] RBP: 0000000000000006 R08: 000000000000006c R09: 0000000000000000
[  371.303334][ T3921] R10: 00007feae22efac0 R11: 0000000000000246 R12: 00007ffd9640dc08
[  371.303820][ T3921] R13: 00000000686e79c3 R14: 0000000000499600 R15: 00007ffd9640d5f0
| [  376.018419][ T3951] ------------[ cut here ]------------
| [ 376.018731][ T3951] WARNING: CPU: 3 PID: 3951 at ./include/net/netdev_lock.h:17 netif_set_mtu_ext (./include/net/netdev_lock.h:17 ./include/net/netdev_lock.h:15 ./include/net/netdev_lock.h:25 net/core/dev.c:9610) 
| [  376.019385][ T3951] Modules linked in: sctp act_gact cls_flower sch_ingress vxlan ip6_gre gre [last unloaded: test_bpf]
| [  376.020659][ T3951] Tainted: [W]=WARN
[  376.020891][ T3951] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 376.021421][ T3951] RIP: 0010:netif_set_mtu_ext (./include/net/netdev_lock.h:17 ./include/net/netdev_lock.h:15 ./include/net/netdev_lock.h:25 net/core/dev.c:9610) 
[ 376.021745][ T3951] Code: 00 00 8b 05 77 04 bc 02 85 c0 0f 84 52 fe ff ff 48 8d bb c0 0c 00 00 be ff ff ff ff e8 da fc 9b 00 85 c0 0f 85 39 fe ff ff 90 <0f> 0b 90 e9 30 fe ff ff 48 b8 00 00 00 00 00 fc ff df 4c 89 fa 48
All code
========
   0:	00 00                	add    %al,(%rax)
   2:	8b 05 77 04 bc 02    	mov    0x2bc0477(%rip),%eax        # 0x2bc047f
   8:	85 c0                	test   %eax,%eax
   a:	0f 84 52 fe ff ff    	je     0xfffffffffffffe62
  10:	48 8d bb c0 0c 00 00 	lea    0xcc0(%rbx),%rdi
  17:	be ff ff ff ff       	mov    $0xffffffff,%esi
  1c:	e8 da fc 9b 00       	call   0x9bfcfb
  21:	85 c0                	test   %eax,%eax
  23:	0f 85 39 fe ff ff    	jne    0xfffffffffffffe62
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	e9 30 fe ff ff       	jmp    0xfffffffffffffe62
  32:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
  39:	fc ff df 
  3c:	4c 89 fa             	mov    %r15,%rdx
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	e9 30 fe ff ff       	jmp    0xfffffffffffffe38
   8:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
   f:	fc ff df 
  12:	4c 89 fa             	mov    %r15,%rdx
  15:	48                   	rex.W
[  376.022990][ T3951] RSP: 0018:ffffc90007ed7080 EFLAGS: 00010246
[  376.023376][ T3951] RAX: 0000000000000000 RBX: ffff8880059f2000 RCX: 0000000000000001
[  376.023828][ T3951] RDX: 0000000000000000 RSI: ffffffff93510751 RDI: ffffffff92c58280
[  376.024446][ T3951] RBP: ffffc90007ed7168 R08: 0000000000000000 R09: 0000000000000000
[  376.024898][ T3951] R10: ffffc90007ed7198 R11: ffffffff93f8d1e0 R12: 1ffff92000fdae14
[  376.025491][ T3951] R13: 00000000000005dc R14: ffffc90007ed7198 R15: ffff8880059f2f48
[  376.026002][ T3951] FS:  00007f7c879e0800(0000) GS:ffff8880d7519000(0000) knlGS:0000000000000000
[  376.026538][ T3951] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  376.026920][ T3951] CR2: 00007f7c87ae0130 CR3: 0000000009776004 CR4: 0000000000772ef0
[  376.027388][ T3951] PKRU: 55555554
[  376.027615][ T3951] Call Trace:
[  376.027842][ T3951]  <TASK>
[ 376.028016][ T3951] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 376.028321][ T3951] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 376.028642][ T3951] netif_set_mtu (net/core/dev.c:9652) 
[ 376.028970][ T3951] ? __pfx_netif_set_mtu (net/core/dev.c:9647) 
[ 376.029290][ T3951] dev_set_mtu (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:47 net/core/dev_api.c:249) 
[ 376.029520][ T3951] br_mtu_auto_adjust (net/bridge/br_if.c:525) 
[ 376.029824][ T3951] br_add_if (net/bridge/br_if.c:697) 
[ 376.030077][ T3951] do_set_master (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:41 net/core/rtnetlink.c:2949) 
[ 376.030379][ T3951] ? rtnl_configure_link (net/core/rtnetlink.c:3592) 
[ 376.030684][ T3951] rtnl_newlink_create (net/core/rtnetlink.c:3840) 
[ 376.031014][ T3951] ? __pfx_rtnl_newlink_create (net/core/rtnetlink.c:3791) 
[ 376.031314][ T3951] ? __dev_get_by_name (net/core/dev.c:865) 
[ 376.031626][ T3951] ? rtnl_dev_get (net/core/rtnetlink.c:3404) 
[ 376.031925][ T3951] ? __pfx_rtnl_dev_get (net/core/rtnetlink.c:3404) 
[ 376.032242][ T3951] ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4056) 
[ 376.032541][ T3951] ? reacquire_held_locks (kernel/locking/lockdep.c:5388) 
[ 376.032853][ T3951] __rtnl_newlink (net/core/rtnetlink.c:3942) 
[ 376.033179][ T3951] rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4058) 
[ 376.033490][ T3951] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 376.033803][ T3951] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/rtnetlink.c:6944) 
[ 376.034110][ T3951] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 376.034415][ T3951] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 376.034717][ T3951] rtnetlink_rcv_msg (net/core/rtnetlink.c:6946) 
[ 376.035027][ T3951] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 376.035333][ T3951] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 376.035647][ T3951] netlink_rcv_skb (net/netlink/af_netlink.c:2551) 
[ 376.035964][ T3951] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 376.036267][ T3951] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2528) 
[ 376.036579][ T3951] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/netlink/af_netlink.c:340) 
[ 376.036881][ T3951] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 ./include/net/netns/generic.h:48 net/netlink/af_netlink.c:333) 
[ 376.037191][ T3951] netlink_unicast (net/netlink/af_netlink.c:1321 net/netlink/af_netlink.c:1346) 
[ 376.037496][ T3951] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1331) 
[ 376.037803][ T3951] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 376.038118][ T3951] netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 376.038424][ T3951] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1815) 
[ 376.038726][ T3951] ? __import_iovec (lib/iov_iter.c:1441 lib/iov_iter.c:1456) 
[ 376.039043][ T3951] ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 376.039349][ T3951] ? __pfx_____sys_sendmsg (net/socket.c:2560) 
[ 376.039648][ T3951] ? __pfx_copy_msghdr_from_user (net/socket.c:2540) 
[ 376.040063][ T3951] ___sys_sendmsg (net/socket.c:2670) 
[ 376.040380][ T3951] ? __pfx____sys_sendmsg (net/socket.c:2657) 
[ 376.040694][ T3951] ? __pfx_handle_pte_fault (mm/memory.c:6026) 
[ 376.041027][ T3951] ? reacquire_held_locks (kernel/locking/lockdep.c:5388) 
[ 376.041341][ T3951] ? do_user_addr_fault (arch/x86/mm/fault.c:1327) 
[ 376.041666][ T3951] ? __handle_mm_fault (mm/memory.c:6212) 
[ 376.041990][ T3951] ? __pfx___handle_mm_fault (mm/memory.c:6121) 
[ 376.042308][ T3951] ? lock_vma_under_rcu (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 mm/mmap_lock.c:171) 
[ 376.042642][ T3951] __sys_sendmsg (net/socket.c:2700) 
[ 376.042965][ T3951] ? __pfx___sys_sendmsg (net/socket.c:2685) 
[ 376.043283][ T3951] ? exc_page_fault (./arch/x86/include/asm/irqflags.h:26 ./arch/x86/include/asm/irqflags.h:109 ./arch/x86/include/asm/irqflags.h:151 arch/x86/mm/fault.c:1484 arch/x86/mm/fault.c:1532) 
[ 376.043603][ T3951] ? do_user_addr_fault (./arch/x86/include/asm/atomic.h:93 ./include/linux/atomic/atomic-arch-fallback.h:949 ./include/linux/atomic/atomic-instrumented.h:401 ./include/linux/refcount.h:389 ./include/linux/refcount.h:432 ./include/linux/mmap_lock.h:142 ./include/linux/mmap_lock.h:237 arch/x86/mm/fault.c:1338) 
[ 376.043924][ T3951] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 376.044260][ T3951] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 376.044582][ T3951] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[  376.044981][ T3951] RIP: 0033:0x7f7c87bad1e7
[ 376.045312][ T3951] Code: 0e 00 f7 d8 64 89 02 48 c7 c0 ff ff ff ff eb b9 0f 1f 00 f3 0f 1e fa 64 8b 04 25 18 00 00 00 85 c0 75 10 b8 2e 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 51 c3 48 83 ec 28 89 54 24 1c 48 89 74 24 10
All code
========
   0:	0e                   	(bad)
   1:	00 f7                	add    %dh,%bh
   3:	d8 64 89 02          	fsubs  0x2(%rcx,%rcx,4)
   7:	48 c7 c0 ff ff ff ff 	mov    $0xffffffffffffffff,%rax
   e:	eb b9                	jmp    0xffffffffffffffc9
  10:	0f 1f 00             	nopl   (%rax)
  13:	f3 0f 1e fa          	endbr64
  17:	64 8b 04 25 18 00 00 	mov    %fs:0x18,%eax
  1e:	00 
  1f:	85 c0                	test   %eax,%eax
  21:	75 10                	jne    0x33
  23:	b8 2e 00 00 00       	mov    $0x2e,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 00 f0 ff ff    	cmp    $0xfffffffffffff000,%rax		<-- trapping instruction
  30:	77 51                	ja     0x83
  32:	c3                   	ret
  33:	48 83 ec 28          	sub    $0x28,%rsp
  37:	89 54 24 1c          	mov    %edx,0x1c(%rsp)
  3b:	48 89 74 24 10       	mov    %rsi,0x10(%rsp)

Code starting with the faulting instruction
===========================================
   0:	48 3d 00 f0 ff ff    	cmp    $0xfffffffffffff000,%rax
   6:	77 51                	ja     0x59
   8:	c3                   	ret
   9:	48 83 ec 28          	sub    $0x28,%rsp
   d:	89 54 24 1c          	mov    %edx,0x1c(%rsp)
  11:	48 89 74 24 10       	mov    %rsi,0x10(%rsp)
[  376.046443][ T3951] RSP: 002b:00007fffb5755e48 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[  376.046927][ T3951] RAX: ffffffffffffffda RBX: 00007fffb5756580 RCX: 00007f7c87bad1e7
[  376.047408][ T3951] RDX: 0000000000000000 RSI: 00007fffb5755eb0 RDI: 0000000000000005
[  376.047887][ T3951] RBP: 0000000000000006 R08: 000000000000006c R09: 0000000000000000
[  376.048369][ T3951] R10: 00007f7c87c3bac0 R11: 0000000000000246 R12: 00007fffb57565b8
[  376.048852][ T3951] R13: 00000000686e79c8 R14: 0000000000499600 R15: 00007fffb5755fa0
| [  383.116821][ T4017] ------------[ cut here ]------------
| [ 383.117174][ T4017] WARNING: CPU: 2 PID: 4017 at ./include/net/netdev_lock.h:17 netif_set_mtu_ext (./include/net/netdev_lock.h:17 ./include/net/netdev_lock.h:15 ./include/net/netdev_lock.h:25 net/core/dev.c:9610) 
| [  383.117796][ T4017] Modules linked in: sctp act_gact cls_flower sch_ingress vxlan ip6_gre gre [last unloaded: test_bpf]
| [  383.119729][ T4017] Tainted: [W]=WARN
[  383.119986][ T4017] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 383.120374][ T4017] RIP: 0010:netif_set_mtu_ext (./include/net/netdev_lock.h:17 ./include/net/netdev_lock.h:15 ./include/net/netdev_lock.h:25 net/core/dev.c:9610) 
[ 383.120694][ T4017] Code: 00 00 8b 05 77 04 bc 02 85 c0 0f 84 52 fe ff ff 48 8d bb c0 0c 00 00 be ff ff ff ff e8 da fc 9b 00 85 c0 0f 85 39 fe ff ff 90 <0f> 0b 90 e9 30 fe ff ff 48 b8 00 00 00 00 00 fc ff df 4c 89 fa 48
All code
========
   0:	00 00                	add    %al,(%rax)
   2:	8b 05 77 04 bc 02    	mov    0x2bc0477(%rip),%eax        # 0x2bc047f
   8:	85 c0                	test   %eax,%eax
   a:	0f 84 52 fe ff ff    	je     0xfffffffffffffe62
  10:	48 8d bb c0 0c 00 00 	lea    0xcc0(%rbx),%rdi
  17:	be ff ff ff ff       	mov    $0xffffffff,%esi
  1c:	e8 da fc 9b 00       	call   0x9bfcfb
  21:	85 c0                	test   %eax,%eax
  23:	0f 85 39 fe ff ff    	jne    0xfffffffffffffe62
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	e9 30 fe ff ff       	jmp    0xfffffffffffffe62
  32:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
  39:	fc ff df 
  3c:	4c 89 fa             	mov    %r15,%rdx
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	e9 30 fe ff ff       	jmp    0xfffffffffffffe38
   8:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
   f:	fc ff df 
  12:	4c 89 fa             	mov    %r15,%rdx
  15:	48                   	rex.W
[  383.121802][ T4017] RSP: 0018:ffffc90008177080 EFLAGS: 00010246
[  383.122207][ T4017] RAX: 0000000000000000 RBX: ffff8880054f2000 RCX: 0000000000000001
[  383.122670][ T4017] RDX: 0000000000000000 RSI: ffffffff93510751 RDI: ffffffff92c58280
[  383.123204][ T4017] RBP: ffffc90008177168 R08: 0000000000000000 R09: 0000000000000000
[  383.123674][ T4017] R10: ffffc90008177198 R11: ffffffff93f8d1e0 R12: 1ffff9200102ee14
[  383.124149][ T4017] R13: 00000000000005dc R14: ffffc90008177198 R15: ffff8880054f2f48
[  383.124611][ T4017] FS:  00007f49caf19800(0000) GS:ffff8880d7499000(0000) knlGS:0000000000000000
[  383.125175][ T4017] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  383.125570][ T4017] CR2: 00007f49cb104ba0 CR3: 0000000014683005 CR4: 0000000000772ef0
[  383.126045][ T4017] PKRU: 55555554
[  383.126285][ T4017] Call Trace:
[  383.126522][ T4017]  <TASK>
[ 383.126690][ T4017] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 383.127024][ T4017] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 383.127368][ T4017] netif_set_mtu (net/core/dev.c:9652) 
[ 383.127683][ T4017] ? __pfx_netif_set_mtu (net/core/dev.c:9647) 
[ 383.128023][ T4017] dev_set_mtu (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:47 net/core/dev_api.c:249) 
[ 383.128267][ T4017] br_mtu_auto_adjust (net/bridge/br_if.c:525) 
[ 383.128584][ T4017] br_add_if (net/bridge/br_if.c:697) 
[ 383.128836][ T4017] do_set_master (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:41 net/core/rtnetlink.c:2949) 
[ 383.129165][ T4017] ? rtnl_configure_link (net/core/rtnetlink.c:3592) 
[ 383.129489][ T4017] rtnl_newlink_create (net/core/rtnetlink.c:3840) 
[ 383.129812][ T4017] ? __pfx_rtnl_newlink_create (net/core/rtnetlink.c:3791) 
[ 383.130135][ T4017] ? __dev_get_by_name (net/core/dev.c:865) 
[ 383.130447][ T4017] ? rtnl_dev_get (net/core/rtnetlink.c:3404) 
[ 383.130758][ T4017] ? __pfx_rtnl_dev_get (net/core/rtnetlink.c:3404) 
[ 383.131092][ T4017] ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4056) 
[ 383.131411][ T4017] ? reacquire_held_locks (kernel/locking/lockdep.c:5388) 
[ 383.131742][ T4017] __rtnl_newlink (net/core/rtnetlink.c:3942) 
[ 383.132086][ T4017] rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4058) 
[ 383.132407][ T4017] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 383.132732][ T4017] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/rtnetlink.c:6944) 
[ 383.133064][ T4017] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 383.133389][ T4017] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 383.133701][ T4017] rtnetlink_rcv_msg (net/core/rtnetlink.c:6946) 
[ 383.134029][ T4017] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 383.134348][ T4017] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 383.134669][ T4017] netlink_rcv_skb (net/netlink/af_netlink.c:2551) 
[ 383.134991][ T4017] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 383.135330][ T4017] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2528) 
[ 383.135661][ T4017] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/netlink/af_netlink.c:340) 
[ 383.135990][ T4017] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 ./include/net/netns/generic.h:48 net/netlink/af_netlink.c:333) 
[ 383.136316][ T4017] netlink_unicast (net/netlink/af_netlink.c:1321 net/netlink/af_netlink.c:1346) 
[ 383.136633][ T4017] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1331) 
[ 383.136974][ T4017] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 383.137303][ T4017] netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 383.137620][ T4017] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1815) 
[ 383.137934][ T4017] ? __import_iovec (lib/iov_iter.c:1441 lib/iov_iter.c:1456) 
[ 383.138266][ T4017] ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 383.138580][ T4017] ? __pfx_____sys_sendmsg (net/socket.c:2560) 
[ 383.138894][ T4017] ? __pfx_copy_msghdr_from_user (net/socket.c:2540) 
[ 383.139306][ T4017] ___sys_sendmsg (net/socket.c:2670) 
[ 383.139626][ T4017] ? __pfx____sys_sendmsg (net/socket.c:2657) 
[ 383.139952][ T4017] ? rcu_read_lock_any_held (kernel/rcu/update.c:386 kernel/rcu/update.c:380) 
[ 383.140273][ T4017] ? rcu_read_lock_any_held (kernel/rcu/update.c:386 kernel/rcu/update.c:380) 
[ 383.140581][ T4017] ? validate_chain (kernel/locking/lockdep.c:3804 kernel/locking/lockdep.c:3824 kernel/locking/lockdep.c:3879) 
[ 383.140899][ T4017] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 383.141240][ T4017] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 383.141575][ T4017] __sys_sendmsg (net/socket.c:2700) 
[ 383.141889][ T4017] ? __pfx___sys_sendmsg (net/socket.c:2685) 
[ 383.142226][ T4017] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 383.142542][ T4017] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 383.142855][ T4017] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[  383.143247][ T4017] RIP: 0033:0x7f49cb0e61e7
[ 383.143569][ T4017] Code: 0e 00 f7 d8 64 89 02 48 c7 c0 ff ff ff ff eb b9 0f 1f 00 f3 0f 1e fa 64 8b 04 25 18 00 00 00 85 c0 75 10 b8 2e 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 51 c3 48 83 ec 28 89 54 24 1c 48 89 74 24 10
All code
========
   0:	0e                   	(bad)
   1:	00 f7                	add    %dh,%bh
   3:	d8 64 89 02          	fsubs  0x2(%rcx,%rcx,4)
   7:	48 c7 c0 ff ff ff ff 	mov    $0xffffffffffffffff,%rax
   e:	eb b9                	jmp    0xffffffffffffffc9
  10:	0f 1f 00             	nopl   (%rax)
  13:	f3 0f 1e fa          	endbr64
  17:	64 8b 04 25 18 00 00 	mov    %fs:0x18,%eax
  1e:	00 
  1f:	85 c0                	test   %eax,%eax
  21:	75 10                	jne    0x33
  23:	b8 2e 00 00 00       	mov    $0x2e,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 00 f0 ff ff    	cmp    $0xfffffffffffff000,%rax		<-- trapping instruction
  30:	77 51                	ja     0x83
  32:	c3                   	ret
  33:	48 83 ec 28          	sub    $0x28,%rsp
  37:	89 54 24 1c          	mov    %edx,0x1c(%rsp)
  3b:	48 89 74 24 10       	mov    %rsi,0x10(%rsp)

Code starting with the faulting instruction
===========================================
   0:	48 3d 00 f0 ff ff    	cmp    $0xfffffffffffff000,%rax
   6:	77 51                	ja     0x59
   8:	c3                   	ret
   9:	48 83 ec 28          	sub    $0x28,%rsp
   d:	89 54 24 1c          	mov    %edx,0x1c(%rsp)
  11:	48 89 74 24 10       	mov    %rsi,0x10(%rsp)
[  383.144666][ T4017] RSP: 002b:00007ffd2becb2d8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[  383.145153][ T4017] RAX: ffffffffffffffda RBX: 00007ffd2becba10 RCX: 00007f49cb0e61e7
[  383.145621][ T4017] RDX: 0000000000000000 RSI: 00007ffd2becb340 RDI: 0000000000000005
[  383.146102][ T4017] RBP: 0000000000000006 R08: 0000000000000078 R09: 0000000000000000
[  383.146563][ T4017] R10: 00007f49cb174ac0 R11: 0000000000000246 R12: 00007ffd2becba48
[  383.147035][ T4017] R13: 00000000686e79cf R14: 0000000000499600 R15: 00007ffd2becb430
| [  387.021683][ T4047] ------------[ cut here ]------------
| [ 387.022028][ T4047] WARNING: CPU: 2 PID: 4047 at ./include/net/netdev_lock.h:17 netif_set_mtu_ext (./include/net/netdev_lock.h:17 ./include/net/netdev_lock.h:15 ./include/net/netdev_lock.h:25 net/core/dev.c:9610) 
| [  387.022648][ T4047] Modules linked in: sctp act_gact cls_flower sch_ingress vxlan ip6_gre gre [last unloaded: test_bpf]
| [  387.023918][ T4047] Tainted: [W]=WARN
[  387.024170][ T4047] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 387.024562][ T4047] RIP: 0010:netif_set_mtu_ext (./include/net/netdev_lock.h:17 ./include/net/netdev_lock.h:15 ./include/net/netdev_lock.h:25 net/core/dev.c:9610) 
[ 387.024886][ T4047] Code: 00 00 8b 05 77 04 bc 02 85 c0 0f 84 52 fe ff ff 48 8d bb c0 0c 00 00 be ff ff ff ff e8 da fc 9b 00 85 c0 0f 85 39 fe ff ff 90 <0f> 0b 90 e9 30 fe ff ff 48 b8 00 00 00 00 00 fc ff df 4c 89 fa 48
All code
========
   0:	00 00                	add    %al,(%rax)
   2:	8b 05 77 04 bc 02    	mov    0x2bc0477(%rip),%eax        # 0x2bc047f
   8:	85 c0                	test   %eax,%eax
   a:	0f 84 52 fe ff ff    	je     0xfffffffffffffe62
  10:	48 8d bb c0 0c 00 00 	lea    0xcc0(%rbx),%rdi
  17:	be ff ff ff ff       	mov    $0xffffffff,%esi
  1c:	e8 da fc 9b 00       	call   0x9bfcfb
  21:	85 c0                	test   %eax,%eax
  23:	0f 85 39 fe ff ff    	jne    0xfffffffffffffe62
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	e9 30 fe ff ff       	jmp    0xfffffffffffffe62
  32:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
  39:	fc ff df 
  3c:	4c 89 fa             	mov    %r15,%rdx
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	e9 30 fe ff ff       	jmp    0xfffffffffffffe38
   8:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
   f:	fc ff df 
  12:	4c 89 fa             	mov    %r15,%rdx
  15:	48                   	rex.W
[  387.025981][ T4047] RSP: 0018:ffffc90008327080 EFLAGS: 00010246
[  387.026374][ T4047] RAX: 0000000000000000 RBX: ffff888009c52000 RCX: 0000000000000001
[  387.026842][ T4047] RDX: 0000000000000000 RSI: ffffffff93510751 RDI: ffffffff92c58280
[  387.027324][ T4047] RBP: ffffc90008327168 R08: 0000000000000000 R09: 0000000000000000
[  387.027785][ T4047] R10: ffffc90008327198 R11: ffffffff93f8d1e0 R12: 1ffff92001064e14
[  387.028258][ T4047] R13: 00000000000005dc R14: ffffc90008327198 R15: ffff888009c52f48
[  387.028730][ T4047] FS:  00007f2299c94800(0000) GS:ffff8880d7499000(0000) knlGS:0000000000000000
[  387.029280][ T4047] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  387.029671][ T4047] CR2: 00007f2299e7fba0 CR3: 0000000013b29004 CR4: 0000000000772ef0
[  387.030147][ T4047] PKRU: 55555554
[  387.030385][ T4047] Call Trace:
[  387.030623][ T4047]  <TASK>
[ 387.030798][ T4047] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 387.031134][ T4047] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 387.031472][ T4047] netif_set_mtu (net/core/dev.c:9652) 
[ 387.031790][ T4047] ? __pfx_netif_set_mtu (net/core/dev.c:9647) 
[ 387.032131][ T4047] dev_set_mtu (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:47 net/core/dev_api.c:249) 
[ 387.032373][ T4047] br_mtu_auto_adjust (net/bridge/br_if.c:525) 
[ 387.032693][ T4047] br_add_if (net/bridge/br_if.c:697) 
[ 387.032955][ T4047] do_set_master (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:41 net/core/rtnetlink.c:2949) 
[ 387.033274][ T4047] ? rtnl_configure_link (net/core/rtnetlink.c:3592) 
[ 387.033590][ T4047] rtnl_newlink_create (net/core/rtnetlink.c:3840) 
[ 387.033907][ T4047] ? __pfx_rtnl_newlink_create (net/core/rtnetlink.c:3791) 
[ 387.034231][ T4047] ? __dev_get_by_name (net/core/dev.c:865) 
[ 387.034546][ T4047] ? rtnl_dev_get (net/core/rtnetlink.c:3404) 
[ 387.034859][ T4047] ? __pfx_rtnl_dev_get (net/core/rtnetlink.c:3404) 
[ 387.035231][ T4047] ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4056) 
[ 387.035557][ T4047] ? reacquire_held_locks (kernel/locking/lockdep.c:5388) 
[ 387.035876][ T4047] __rtnl_newlink (net/core/rtnetlink.c:3942) 
[ 387.036218][ T4047] rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4058) 
[ 387.036540][ T4047] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 387.036868][ T4047] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/rtnetlink.c:6944) 
[ 387.037190][ T4047] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 387.037507][ T4047] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 387.037818][ T4047] rtnetlink_rcv_msg (net/core/rtnetlink.c:6946) 
[ 387.038154][ T4047] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 387.038475][ T4047] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 387.038794][ T4047] netlink_rcv_skb (net/netlink/af_netlink.c:2551) 
[ 387.039140][ T4047] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 387.039467][ T4047] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2528) 
[ 387.039792][ T4047] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/netlink/af_netlink.c:340) 
[ 387.040116][ T4047] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 ./include/net/netns/generic.h:48 net/netlink/af_netlink.c:333) 
[ 387.040437][ T4047] netlink_unicast (net/netlink/af_netlink.c:1321 net/netlink/af_netlink.c:1346) 
[ 387.040754][ T4047] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1331) 
[ 387.041076][ T4047] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 387.041397][ T4047] netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 387.041721][ T4047] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1815) 
[ 387.042047][ T4047] ? __import_iovec (lib/iov_iter.c:1441 lib/iov_iter.c:1456) 
[ 387.042369][ T4047] ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 387.042692][ T4047] ? __pfx_____sys_sendmsg (net/socket.c:2560) 
[ 387.043023][ T4047] ? __pfx_copy_msghdr_from_user (net/socket.c:2540) 
[ 387.043426][ T4047] ___sys_sendmsg (net/socket.c:2670) 
[ 387.043742][ T4047] ? __pfx____sys_sendmsg (net/socket.c:2657) 
[ 387.044071][ T4047] ? rcu_read_lock_any_held (kernel/rcu/update.c:386 kernel/rcu/update.c:380) 
[ 387.044388][ T4047] ? rcu_read_lock_any_held (kernel/rcu/update.c:386 kernel/rcu/update.c:380) 
[ 387.044700][ T4047] ? validate_chain (kernel/locking/lockdep.c:3804 kernel/locking/lockdep.c:3824 kernel/locking/lockdep.c:3879) 
[ 387.045035][ T4047] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 387.045363][ T4047] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 387.045679][ T4047] __sys_sendmsg (net/socket.c:2700) 
[ 387.046004][ T4047] ? __pfx___sys_sendmsg (net/socket.c:2685) 
[ 387.046336][ T4047] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 387.046653][ T4047] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 387.046988][ T4047] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[  387.047390][ T4047] RIP: 0033:0x7f2299e611e7
[ 387.047713][ T4047] Code: 0e 00 f7 d8 64 89 02 48 c7 c0 ff ff ff ff eb b9 0f 1f 00 f3 0f 1e fa 64 8b 04 25 18 00 00 00 85 c0 75 10 b8 2e 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 51 c3 48 83 ec 28 89 54 24 1c 48 89 74 24 10
All code
========
   0:	0e                   	(bad)
   1:	00 f7                	add    %dh,%bh
   3:	d8 64 89 02          	fsubs  0x2(%rcx,%rcx,4)
   7:	48 c7 c0 ff ff ff ff 	mov    $0xffffffffffffffff,%rax
   e:	eb b9                	jmp    0xffffffffffffffc9
  10:	0f 1f 00             	nopl   (%rax)
  13:	f3 0f 1e fa          	endbr64
  17:	64 8b 04 25 18 00 00 	mov    %fs:0x18,%eax
  1e:	00 
  1f:	85 c0                	test   %eax,%eax
  21:	75 10                	jne    0x33
  23:	b8 2e 00 00 00       	mov    $0x2e,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 00 f0 ff ff    	cmp    $0xfffffffffffff000,%rax		<-- trapping instruction
  30:	77 51                	ja     0x83
  32:	c3                   	ret
  33:	48 83 ec 28          	sub    $0x28,%rsp
  37:	89 54 24 1c          	mov    %edx,0x1c(%rsp)
  3b:	48 89 74 24 10       	mov    %rsi,0x10(%rsp)

Code starting with the faulting instruction
===========================================
   0:	48 3d 00 f0 ff ff    	cmp    $0xfffffffffffff000,%rax
   6:	77 51                	ja     0x59
   8:	c3                   	ret
   9:	48 83 ec 28          	sub    $0x28,%rsp
   d:	89 54 24 1c          	mov    %edx,0x1c(%rsp)
  11:	48 89 74 24 10       	mov    %rsi,0x10(%rsp)
[  387.048810][ T4047] RSP: 002b:00007ffc003d3c78 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[  387.049285][ T4047] RAX: ffffffffffffffda RBX: 00007ffc003d43b0 RCX: 00007f2299e611e7
[  387.049752][ T4047] RDX: 0000000000000000 RSI: 00007ffc003d3ce0 RDI: 0000000000000005
[  387.050222][ T4047] RBP: 0000000000000006 R08: 0000000000000078 R09: 0000000000000000
[  387.050685][ T4047] R10: 00007f2299eefac0 R11: 0000000000000246 R12: 00007ffc003d43e8
[  387.051164][ T4047] R13: 00000000686e79d3 R14: 0000000000499600 R15: 00007ffc003d3dd0
| [  405.644438][ T4219] ------------[ cut here ]------------
| [ 405.644820][ T4219] WARNING: CPU: 2 PID: 4219 at ./include/net/netdev_lock.h:17 netif_set_mtu_ext (./include/net/netdev_lock.h:17 ./include/net/netdev_lock.h:15 ./include/net/netdev_lock.h:25 net/core/dev.c:9610) 
| [  405.645437][ T4219] Modules linked in: sctp act_gact cls_flower sch_ingress vxlan ip6_gre gre [last unloaded: test_bpf]
| [  405.646721][ T4219] Tainted: [W]=WARN
[  405.647933][ T4219] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 405.648336][ T4219] RIP: 0010:netif_set_mtu_ext (./include/net/netdev_lock.h:17 ./include/net/netdev_lock.h:15 ./include/net/netdev_lock.h:25 net/core/dev.c:9610) 
[ 405.648657][ T4219] Code: 00 00 8b 05 77 04 bc 02 85 c0 0f 84 52 fe ff ff 48 8d bb c0 0c 00 00 be ff ff ff ff e8 da fc 9b 00 85 c0 0f 85 39 fe ff ff 90 <0f> 0b 90 e9 30 fe ff ff 48 b8 00 00 00 00 00 fc ff df 4c 89 fa 48
All code
========
   0:	00 00                	add    %al,(%rax)
   2:	8b 05 77 04 bc 02    	mov    0x2bc0477(%rip),%eax        # 0x2bc047f
   8:	85 c0                	test   %eax,%eax
   a:	0f 84 52 fe ff ff    	je     0xfffffffffffffe62
  10:	48 8d bb c0 0c 00 00 	lea    0xcc0(%rbx),%rdi
  17:	be ff ff ff ff       	mov    $0xffffffff,%esi
  1c:	e8 da fc 9b 00       	call   0x9bfcfb
  21:	85 c0                	test   %eax,%eax
  23:	0f 85 39 fe ff ff    	jne    0xfffffffffffffe62
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	e9 30 fe ff ff       	jmp    0xfffffffffffffe62
  32:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
  39:	fc ff df 
  3c:	4c 89 fa             	mov    %r15,%rdx
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	e9 30 fe ff ff       	jmp    0xfffffffffffffe38
   8:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
   f:	fc ff df 
  12:	4c 89 fa             	mov    %r15,%rdx
  15:	48                   	rex.W
[  405.649763][ T4219] RSP: 0018:ffffc90008857080 EFLAGS: 00010246
[  405.650174][ T4219] RAX: 0000000000000000 RBX: ffff88800dc9a000 RCX: 0000000000000001
[  405.650647][ T4219] RDX: 0000000000000000 RSI: ffffffff93510751 RDI: ffffffff92c58280
[  405.651119][ T4219] RBP: ffffc90008857168 R08: 0000000000000000 R09: 0000000000000000
[  405.651596][ T4219] R10: ffffc90008857198 R11: ffffffff93f8d1e0 R12: 1ffff9200110ae14
[  405.652068][ T4219] R13: 00000000000005dc R14: ffffc90008857198 R15: ffff88800dc9af48
[  405.652529][ T4219] FS:  00007ff8d8792800(0000) GS:ffff8880d7499000(0000) knlGS:0000000000000000
[  405.653078][ T4219] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  405.653475][ T4219] CR2: 000000000043d940 CR3: 0000000015b17002 CR4: 0000000000772ef0
[  405.653960][ T4219] PKRU: 55555554
[  405.654209][ T4219] Call Trace:
[  405.654445][ T4219]  <TASK>
[ 405.654616][ T4219] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 405.654932][ T4219] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 405.655273][ T4219] netif_set_mtu (net/core/dev.c:9652) 
[ 405.655584][ T4219] ? __pfx_netif_set_mtu (net/core/dev.c:9647) 
[ 405.655919][ T4219] dev_set_mtu (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:47 net/core/dev_api.c:249) 
[ 405.656171][ T4219] br_mtu_auto_adjust (net/bridge/br_if.c:525) 
[ 405.656488][ T4219] br_add_if (net/bridge/br_if.c:697) 
[ 405.656742][ T4219] do_set_master (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:41 net/core/rtnetlink.c:2949) 
[ 405.657063][ T4219] ? rtnl_configure_link (net/core/rtnetlink.c:3592) 
[ 405.657382][ T4219] rtnl_newlink_create (net/core/rtnetlink.c:3840) 
[ 405.657699][ T4219] ? __pfx_rtnl_newlink_create (net/core/rtnetlink.c:3791) 
[ 405.658033][ T4219] ? __dev_get_by_name (net/core/dev.c:865) 
[ 405.658348][ T4219] ? rtnl_dev_get (net/core/rtnetlink.c:3404) 
[ 405.658661][ T4219] ? __pfx_rtnl_dev_get (net/core/rtnetlink.c:3404) 
[ 405.658997][ T4219] ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4056) 
[ 405.659311][ T4219] ? reacquire_held_locks (kernel/locking/lockdep.c:5388) 
[ 405.659628][ T4219] __rtnl_newlink (net/core/rtnetlink.c:3942) 
[ 405.659962][ T4219] rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4058) 
[ 405.660282][ T4219] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 405.660613][ T4219] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/rtnetlink.c:6944) 
[ 405.660923][ T4219] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 405.661250][ T4219] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 405.661574][ T4219] rtnetlink_rcv_msg (net/core/rtnetlink.c:6946) 
[ 405.661890][ T4219] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 405.662226][ T4219] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 405.662549][ T4219] netlink_rcv_skb (net/netlink/af_netlink.c:2551) 
[ 405.662864][ T4219] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 405.663194][ T4219] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2528) 
[ 405.663519][ T4219] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/netlink/af_netlink.c:340) 
[ 405.663829][ T4219] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 ./include/net/netns/generic.h:48 net/netlink/af_netlink.c:333) 
[ 405.664155][ T4219] netlink_unicast (net/netlink/af_netlink.c:1321 net/netlink/af_netlink.c:1346) 
[ 405.664472][ T4219] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1331) 
[ 405.664784][ T4219] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 405.665112][ T4219] netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 405.665437][ T4219] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1815) 
[ 405.665750][ T4219] ? __import_iovec (lib/iov_iter.c:1441 lib/iov_iter.c:1456) 
[ 405.666097][ T4219] ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 405.666420][ T4219] ? __pfx_____sys_sendmsg (net/socket.c:2560) 
[ 405.666733][ T4219] ? __pfx_copy_msghdr_from_user (net/socket.c:2540) 
[ 405.667142][ T4219] ___sys_sendmsg (net/socket.c:2670) 
[ 405.667458][ T4219] ? __pfx____sys_sendmsg (net/socket.c:2657) 
[ 405.667775][ T4219] ? __pfx_handle_pte_fault (mm/memory.c:6026) 
[ 405.668102][ T4219] ? reacquire_held_locks (kernel/locking/lockdep.c:5388) 
[ 405.668413][ T4219] ? do_user_addr_fault (arch/x86/mm/fault.c:1327) 
[ 405.668729][ T4219] ? __handle_mm_fault (mm/memory.c:6212) 
[ 405.669050][ T4219] ? __pfx___handle_mm_fault (mm/memory.c:6121) 
[ 405.669365][ T4219] ? lock_vma_under_rcu (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 mm/mmap_lock.c:171) 
[ 405.669704][ T4219] __sys_sendmsg (net/socket.c:2700) 
[ 405.670043][ T4219] ? __pfx___sys_sendmsg (net/socket.c:2685) 
[ 405.670358][ T4219] ? exc_page_fault (./arch/x86/include/asm/irqflags.h:26 ./arch/x86/include/asm/irqflags.h:109 ./arch/x86/include/asm/irqflags.h:151 arch/x86/mm/fault.c:1484 arch/x86/mm/fault.c:1532) 
[ 405.670680][ T4219] ? do_user_addr_fault (./arch/x86/include/asm/atomic.h:93 ./include/linux/atomic/atomic-arch-fallback.h:949 ./include/linux/atomic/atomic-instrumented.h:401 ./include/linux/refcount.h:389 ./include/linux/refcount.h:432 ./include/linux/mmap_lock.h:142 ./include/linux/mmap_lock.h:237 arch/x86/mm/fault.c:1338) 
[ 405.671003][ T4219] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 405.671322][ T4219] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 405.671657][ T4219] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[  405.672057][ T4219] RIP: 0033:0x7ff8d895f1e7
[ 405.672476][ T4219] Code: 0e 00 f7 d8 64 89 02 48 c7 c0 ff ff ff ff eb b9 0f 1f 00 f3 0f 1e fa 64 8b 04 25 18 00 00 00 85 c0 75 10 b8 2e 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 51 c3 48 83 ec 28 89 54 24 1c 48 89 74 24 10
All code
========
   0:	0e                   	(bad)
   1:	00 f7                	add    %dh,%bh
   3:	d8 64 89 02          	fsubs  0x2(%rcx,%rcx,4)
   7:	48 c7 c0 ff ff ff ff 	mov    $0xffffffffffffffff,%rax
   e:	eb b9                	jmp    0xffffffffffffffc9
  10:	0f 1f 00             	nopl   (%rax)
  13:	f3 0f 1e fa          	endbr64
  17:	64 8b 04 25 18 00 00 	mov    %fs:0x18,%eax
  1e:	00 
  1f:	85 c0                	test   %eax,%eax
  21:	75 10                	jne    0x33
  23:	b8 2e 00 00 00       	mov    $0x2e,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 00 f0 ff ff    	cmp    $0xfffffffffffff000,%rax		<-- trapping instruction
  30:	77 51                	ja     0x83
  32:	c3                   	ret
  33:	48 83 ec 28          	sub    $0x28,%rsp
  37:	89 54 24 1c          	mov    %edx,0x1c(%rsp)
  3b:	48 89 74 24 10       	mov    %rsi,0x10(%rsp)

Code starting with the faulting instruction
===========================================
   0:	48 3d 00 f0 ff ff    	cmp    $0xfffffffffffff000,%rax
   6:	77 51                	ja     0x59
   8:	c3                   	ret
   9:	48 83 ec 28          	sub    $0x28,%rsp
   d:	89 54 24 1c          	mov    %edx,0x1c(%rsp)
  11:	48 89 74 24 10       	mov    %rsi,0x10(%rsp)
[  405.673574][ T4219] RSP: 002b:00007ffd2ebbd0b8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[  405.674059][ T4219] RAX: ffffffffffffffda RBX: 00007ffd2ebbd7f0 RCX: 00007ff8d895f1e7
[  405.674529][ T4219] RDX: 0000000000000000 RSI: 00007ffd2ebbd120 RDI: 0000000000000005
[  405.675005][ T4219] RBP: 0000000000000006 R08: 000000000000006c R09: 0000000000000000
[  405.675465][ T4219] R10: 00007ff8d89edac0 R11: 0000000000000246 R12: 00007ffd2ebbd828
[  405.675929][ T4219] R13: 00000000686e79e6 R14: 0000000000499600 R15: 00007ffd2ebbd210
| [  409.582069][ T4249] ------------[ cut here ]------------
| [ 409.582403][ T4249] WARNING: CPU: 2 PID: 4249 at ./include/net/netdev_lock.h:17 netif_set_mtu_ext (./include/net/netdev_lock.h:17 ./include/net/netdev_lock.h:15 ./include/net/netdev_lock.h:25 net/core/dev.c:9610) 
| [  409.583035][ T4249] Modules linked in: sctp act_gact cls_flower sch_ingress vxlan ip6_gre gre [last unloaded: test_bpf]
| [  409.585123][ T4249] Tainted: [W]=WARN
[  409.585370][ T4249] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 409.585760][ T4249] RIP: 0010:netif_set_mtu_ext (./include/net/netdev_lock.h:17 ./include/net/netdev_lock.h:15 ./include/net/netdev_lock.h:25 net/core/dev.c:9610) 
[ 409.586094][ T4249] Code: 00 00 8b 05 77 04 bc 02 85 c0 0f 84 52 fe ff ff 48 8d bb c0 0c 00 00 be ff ff ff ff e8 da fc 9b 00 85 c0 0f 85 39 fe ff ff 90 <0f> 0b 90 e9 30 fe ff ff 48 b8 00 00 00 00 00 fc ff df 4c 89 fa 48
All code
========
   0:	00 00                	add    %al,(%rax)
   2:	8b 05 77 04 bc 02    	mov    0x2bc0477(%rip),%eax        # 0x2bc047f
   8:	85 c0                	test   %eax,%eax
   a:	0f 84 52 fe ff ff    	je     0xfffffffffffffe62
  10:	48 8d bb c0 0c 00 00 	lea    0xcc0(%rbx),%rdi
  17:	be ff ff ff ff       	mov    $0xffffffff,%esi
  1c:	e8 da fc 9b 00       	call   0x9bfcfb
  21:	85 c0                	test   %eax,%eax
  23:	0f 85 39 fe ff ff    	jne    0xfffffffffffffe62
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	e9 30 fe ff ff       	jmp    0xfffffffffffffe62
  32:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
  39:	fc ff df 
  3c:	4c 89 fa             	mov    %r15,%rdx
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	e9 30 fe ff ff       	jmp    0xfffffffffffffe38
   8:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
   f:	fc ff df 
  12:	4c 89 fa             	mov    %r15,%rdx
  15:	48                   	rex.W
[  409.587211][ T4249] RSP: 0018:ffffc90008597080 EFLAGS: 00010246
[  409.587612][ T4249] RAX: 0000000000000000 RBX: ffff8880054f2000 RCX: 0000000000000001
[  409.588087][ T4249] RDX: 0000000000000000 RSI: ffffffff93510751 RDI: ffffffff92c58280
[  409.588549][ T4249] RBP: ffffc90008597168 R08: 0000000000000000 R09: 0000000000000000
[  409.589028][ T4249] R10: ffffc90008597198 R11: ffffffff93f8d1e0 R12: 1ffff920010b2e14
[  409.589491][ T4249] R13: 00000000000005dc R14: ffffc90008597198 R15: ffff8880054f2f48
[  409.589962][ T4249] FS:  00007f6a4ddb7800(0000) GS:ffff8880d7499000(0000) knlGS:0000000000000000
[  409.590505][ T4249] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  409.590900][ T4249] CR2: 000000000043d940 CR3: 0000000015b8b005 CR4: 0000000000772ef0
[  409.591392][ T4249] PKRU: 55555554
[  409.591654][ T4249] Call Trace:
[  409.591891][ T4249]  <TASK>
[ 409.592071][ T4249] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 409.592392][ T4249] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 409.592719][ T4249] netif_set_mtu (net/core/dev.c:9652) 
[ 409.593048][ T4249] ? __pfx_netif_set_mtu (net/core/dev.c:9647) 
[ 409.593385][ T4249] dev_set_mtu (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:47 net/core/dev_api.c:249) 
[ 409.593629][ T4249] br_mtu_auto_adjust (net/bridge/br_if.c:525) 
[ 409.593956][ T4249] br_add_if (net/bridge/br_if.c:697) 
[ 409.594211][ T4249] do_set_master (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:41 net/core/rtnetlink.c:2949) 
[ 409.594523][ T4249] ? rtnl_configure_link (net/core/rtnetlink.c:3592) 
[ 409.594839][ T4249] rtnl_newlink_create (net/core/rtnetlink.c:3840) 
[ 409.595177][ T4249] ? __pfx_rtnl_newlink_create (net/core/rtnetlink.c:3791) 
[ 409.595499][ T4249] ? __dev_get_by_name (net/core/dev.c:865) 
[ 409.595812][ T4249] ? rtnl_dev_get (net/core/rtnetlink.c:3404) 
[ 409.596135][ T4249] ? __pfx_rtnl_dev_get (net/core/rtnetlink.c:3404) 
[ 409.596452][ T4249] ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4056) 
[ 409.596763][ T4249] ? reacquire_held_locks (kernel/locking/lockdep.c:5388) 
[ 409.597091][ T4249] __rtnl_newlink (net/core/rtnetlink.c:3942) 
[ 409.597414][ T4249] rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4058) 
[ 409.597734][ T4249] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 409.598073][ T4249] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/rtnetlink.c:6944) 
[ 409.598386][ T4249] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 409.598701][ T4249] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 409.599042][ T4249] rtnetlink_rcv_msg (net/core/rtnetlink.c:6946) 
[ 409.599363][ T4249] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 409.599689][ T4249] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 409.600018][ T4249] netlink_rcv_skb (net/netlink/af_netlink.c:2551) 
[ 409.600335][ T4249] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 409.600656][ T4249] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2528) 
[ 409.600993][ T4249] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/netlink/af_netlink.c:340) 
[ 409.601304][ T4249] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 ./include/net/netns/generic.h:48 net/netlink/af_netlink.c:333) 
[ 409.601629][ T4249] netlink_unicast (net/netlink/af_netlink.c:1321 net/netlink/af_netlink.c:1346) 
[ 409.601957][ T4249] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1331) 
[ 409.602270][ T4249] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 409.602587][ T4249] netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 409.602912][ T4249] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1815) 
[ 409.603247][ T4249] ? __import_iovec (lib/iov_iter.c:1441 lib/iov_iter.c:1456) 
[ 409.603576][ T4249] ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 409.603891][ T4249] ? __pfx_____sys_sendmsg (net/socket.c:2560) 
[ 409.604227][ T4249] ? __pfx_copy_msghdr_from_user (net/socket.c:2540) 
[ 409.604627][ T4249] ___sys_sendmsg (net/socket.c:2670) 
[ 409.604954][ T4249] ? __pfx____sys_sendmsg (net/socket.c:2657) 
[ 409.605280][ T4249] ? __pfx_handle_pte_fault (mm/memory.c:6026) 
[ 409.605598][ T4249] ? reacquire_held_locks (kernel/locking/lockdep.c:5388) 
[ 409.605911][ T4249] ? do_user_addr_fault (arch/x86/mm/fault.c:1327) 
[ 409.606240][ T4249] ? __handle_mm_fault (mm/memory.c:6212) 
[ 409.606554][ T4249] ? __pfx___handle_mm_fault (mm/memory.c:6121) 
[ 409.606864][ T4249] ? lock_vma_under_rcu (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 mm/mmap_lock.c:171) 
[ 409.607229][ T4249] __sys_sendmsg (net/socket.c:2700) 
[ 409.607552][ T4249] ? __pfx___sys_sendmsg (net/socket.c:2685) 
[ 409.607863][ T4249] ? exc_page_fault (./arch/x86/include/asm/irqflags.h:26 ./arch/x86/include/asm/irqflags.h:109 ./arch/x86/include/asm/irqflags.h:151 arch/x86/mm/fault.c:1484 arch/x86/mm/fault.c:1532) 
[ 409.608194][ T4249] ? do_user_addr_fault (./arch/x86/include/asm/atomic.h:93 ./include/linux/atomic/atomic-arch-fallback.h:949 ./include/linux/atomic/atomic-instrumented.h:401 ./include/linux/refcount.h:389 ./include/linux/refcount.h:432 ./include/linux/mmap_lock.h:142 ./include/linux/mmap_lock.h:237 arch/x86/mm/fault.c:1338) 
[ 409.608511][ T4249] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 409.608825][ T4249] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 409.609151][ T4249] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[  409.609545][ T4249] RIP: 0033:0x7f6a4df841e7
[ 409.609869][ T4249] Code: 0e 00 f7 d8 64 89 02 48 c7 c0 ff ff ff ff eb b9 0f 1f 00 f3 0f 1e fa 64 8b 04 25 18 00 00 00 85 c0 75 10 b8 2e 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 51 c3 48 83 ec 28 89 54 24 1c 48 89 74 24 10
All code
========
   0:	0e                   	(bad)
   1:	00 f7                	add    %dh,%bh
   3:	d8 64 89 02          	fsubs  0x2(%rcx,%rcx,4)
   7:	48 c7 c0 ff ff ff ff 	mov    $0xffffffffffffffff,%rax
   e:	eb b9                	jmp    0xffffffffffffffc9
  10:	0f 1f 00             	nopl   (%rax)
  13:	f3 0f 1e fa          	endbr64
  17:	64 8b 04 25 18 00 00 	mov    %fs:0x18,%eax
  1e:	00 
  1f:	85 c0                	test   %eax,%eax
  21:	75 10                	jne    0x33
  23:	b8 2e 00 00 00       	mov    $0x2e,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 00 f0 ff ff    	cmp    $0xfffffffffffff000,%rax		<-- trapping instruction
  30:	77 51                	ja     0x83
  32:	c3                   	ret
  33:	48 83 ec 28          	sub    $0x28,%rsp
  37:	89 54 24 1c          	mov    %edx,0x1c(%rsp)
  3b:	48 89 74 24 10       	mov    %rsi,0x10(%rsp)

Code starting with the faulting instruction
===========================================
   0:	48 3d 00 f0 ff ff    	cmp    $0xfffffffffffff000,%rax
   6:	77 51                	ja     0x59
   8:	c3                   	ret
   9:	48 83 ec 28          	sub    $0x28,%rsp
   d:	89 54 24 1c          	mov    %edx,0x1c(%rsp)
  11:	48 89 74 24 10       	mov    %rsi,0x10(%rsp)
[  409.610973][ T4249] RSP: 002b:00007ffeafcf8a88 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[  409.611450][ T4249] RAX: ffffffffffffffda RBX: 00007ffeafcf91c0 RCX: 00007f6a4df841e7
[  409.611929][ T4249] RDX: 0000000000000000 RSI: 00007ffeafcf8af0 RDI: 0000000000000005
[  409.612403][ T4249] RBP: 0000000000000006 R08: 000000000000006c R09: 0000000000000000
[  409.612868][ T4249] R10: 00007f6a4e012ac0 R11: 0000000000000246 R12: 00007ffeafcf91f8
[  409.613339][ T4249] R13: 00000000686e79ea R14: 0000000000499600 R15: 00007ffeafcf8be0
| [  416.284836][ T4315] ------------[ cut here ]------------
| [ 416.285188][ T4315] WARNING: CPU: 2 PID: 4315 at ./include/net/netdev_lock.h:17 netif_set_mtu_ext (./include/net/netdev_lock.h:17 ./include/net/netdev_lock.h:15 ./include/net/netdev_lock.h:25 net/core/dev.c:9610) 
| [  416.285796][ T4315] Modules linked in: sctp act_gact cls_flower sch_ingress vxlan ip6_gre gre [last unloaded: test_bpf]
| [  416.287076][ T4315] Tainted: [W]=WARN
[  416.287318][ T4315] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 416.287704][ T4315] RIP: 0010:netif_set_mtu_ext (./include/net/netdev_lock.h:17 ./include/net/netdev_lock.h:15 ./include/net/netdev_lock.h:25 net/core/dev.c:9610) 
[ 416.288036][ T4315] Code: 00 00 8b 05 77 04 bc 02 85 c0 0f 84 52 fe ff ff 48 8d bb c0 0c 00 00 be ff ff ff ff e8 da fc 9b 00 85 c0 0f 85 39 fe ff ff 90 <0f> 0b 90 e9 30 fe ff ff 48 b8 00 00 00 00 00 fc ff df 4c 89 fa 48
All code
========
   0:	00 00                	add    %al,(%rax)
   2:	8b 05 77 04 bc 02    	mov    0x2bc0477(%rip),%eax        # 0x2bc047f
   8:	85 c0                	test   %eax,%eax
   a:	0f 84 52 fe ff ff    	je     0xfffffffffffffe62
  10:	48 8d bb c0 0c 00 00 	lea    0xcc0(%rbx),%rdi
  17:	be ff ff ff ff       	mov    $0xffffffff,%esi
  1c:	e8 da fc 9b 00       	call   0x9bfcfb
  21:	85 c0                	test   %eax,%eax
  23:	0f 85 39 fe ff ff    	jne    0xfffffffffffffe62
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	e9 30 fe ff ff       	jmp    0xfffffffffffffe62
  32:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
  39:	fc ff df 
  3c:	4c 89 fa             	mov    %r15,%rdx
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	e9 30 fe ff ff       	jmp    0xfffffffffffffe38
   8:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
   f:	fc ff df 
  12:	4c 89 fa             	mov    %r15,%rdx
  15:	48                   	rex.W
[  416.289147][ T4315] RSP: 0018:ffffc900087b7080 EFLAGS: 00010246
[  416.289548][ T4315] RAX: 0000000000000000 RBX: ffff888005292000 RCX: 0000000000000001
[  416.290483][ T4315] RDX: 0000000000000000 RSI: ffffffff93510751 RDI: ffffffff92c58280
[  416.290966][ T4315] RBP: ffffc900087b7168 R08: 0000000000000000 R09: 0000000000000000
[  416.291425][ T4315] R10: ffffc900087b7198 R11: ffffffff93f8d1e0 R12: 1ffff920010f6e14
[  416.291897][ T4315] R13: 00000000000005dc R14: ffffc900087b7198 R15: ffff888005292f48
[  416.292367][ T4315] FS:  00007fb675796800(0000) GS:ffff8880d7499000(0000) knlGS:0000000000000000
[  416.292913][ T4315] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  416.293328][ T4315] CR2: 00007fb675981ba0 CR3: 000000000ec6a005 CR4: 0000000000772ef0
[  416.293794][ T4315] PKRU: 55555554
[  416.294043][ T4315] Call Trace:
[  416.294280][ T4315]  <TASK>
[ 416.294447][ T4315] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 416.294760][ T4315] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 416.295102][ T4315] netif_set_mtu (net/core/dev.c:9652) 
[ 416.295416][ T4315] ? __pfx_netif_set_mtu (net/core/dev.c:9647) 
[ 416.295744][ T4315] dev_set_mtu (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:47 net/core/dev_api.c:249) 
[ 416.296001][ T4315] br_mtu_auto_adjust (net/bridge/br_if.c:525) 
[ 416.296319][ T4315] br_add_if (net/bridge/br_if.c:697) 
[ 416.296568][ T4315] do_set_master (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:41 net/core/rtnetlink.c:2949) 
[ 416.296879][ T4315] ? rtnl_configure_link (net/core/rtnetlink.c:3592) 
[ 416.297219][ T4315] rtnl_newlink_create (net/core/rtnetlink.c:3840) 
[ 416.297550][ T4315] ? __pfx_rtnl_newlink_create (net/core/rtnetlink.c:3791) 
[ 416.297859][ T4315] ? __dev_get_by_name (net/core/dev.c:865) 
[ 416.298182][ T4315] ? rtnl_dev_get (net/core/rtnetlink.c:3404) 
[ 416.298492][ T4315] ? __pfx_rtnl_dev_get (net/core/rtnetlink.c:3404) 
[ 416.298810][ T4315] ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4056) 
[ 416.299130][ T4315] ? reacquire_held_locks (kernel/locking/lockdep.c:5388) 
[ 416.299453][ T4315] __rtnl_newlink (net/core/rtnetlink.c:3942) 
[ 416.299775][ T4315] rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4058) 
[ 416.300113][ T4315] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 416.300437][ T4315] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/rtnetlink.c:6944) 
[ 416.300746][ T4315] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 416.301080][ T4315] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 416.301404][ T4315] rtnetlink_rcv_msg (net/core/rtnetlink.c:6946) 
[ 416.301804][ T4315] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 416.302140][ T4315] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 416.302459][ T4315] netlink_rcv_skb (net/netlink/af_netlink.c:2551) 
[ 416.302780][ T4315] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 416.303104][ T4315] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2528) 
[ 416.303430][ T4315] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/netlink/af_netlink.c:340) 
[ 416.303756][ T4315] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 ./include/net/netns/generic.h:48 net/netlink/af_netlink.c:333) 
[ 416.304081][ T4315] netlink_unicast (net/netlink/af_netlink.c:1321 net/netlink/af_netlink.c:1346) 
[ 416.304397][ T4315] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1331) 
[ 416.304714][ T4315] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 416.305050][ T4315] netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 416.305370][ T4315] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1815) 
[ 416.305686][ T4315] ? __import_iovec (lib/iov_iter.c:1441 lib/iov_iter.c:1456) 
[ 416.306016][ T4315] ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 416.306330][ T4315] ? __pfx_____sys_sendmsg (net/socket.c:2560) 
[ 416.306643][ T4315] ? __pfx_copy_msghdr_from_user (net/socket.c:2540) 
[ 416.307049][ T4315] ___sys_sendmsg (net/socket.c:2670) 
[ 416.307377][ T4315] ? __pfx____sys_sendmsg (net/socket.c:2657) 
[ 416.307696][ T4315] ? rcu_read_lock_any_held (kernel/rcu/update.c:386 kernel/rcu/update.c:380) 
[ 416.308026][ T4315] ? rcu_read_lock_any_held (kernel/rcu/update.c:386 kernel/rcu/update.c:380) 
[ 416.308338][ T4315] ? validate_chain (kernel/locking/lockdep.c:3804 kernel/locking/lockdep.c:3824 kernel/locking/lockdep.c:3879) 
[ 416.308656][ T4315] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 416.308996][ T4315] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 416.309322][ T4315] __sys_sendmsg (net/socket.c:2700) 
[ 416.309640][ T4315] ? __pfx___sys_sendmsg (net/socket.c:2685) 
[ 416.309981][ T4315] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 416.310296][ T4315] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 416.310612][ T4315] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[  416.311004][ T4315] RIP: 0033:0x7fb6759631e7
[ 416.311329][ T4315] Code: 0e 00 f7 d8 64 89 02 48 c7 c0 ff ff ff ff eb b9 0f 1f 00 f3 0f 1e fa 64 8b 04 25 18 00 00 00 85 c0 75 10 b8 2e 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 51 c3 48 83 ec 28 89 54 24 1c 48 89 74 24 10
All code
========
   0:	0e                   	(bad)
   1:	00 f7                	add    %dh,%bh
   3:	d8 64 89 02          	fsubs  0x2(%rcx,%rcx,4)
   7:	48 c7 c0 ff ff ff ff 	mov    $0xffffffffffffffff,%rax
   e:	eb b9                	jmp    0xffffffffffffffc9
  10:	0f 1f 00             	nopl   (%rax)
  13:	f3 0f 1e fa          	endbr64
  17:	64 8b 04 25 18 00 00 	mov    %fs:0x18,%eax
  1e:	00 
  1f:	85 c0                	test   %eax,%eax
  21:	75 10                	jne    0x33
  23:	b8 2e 00 00 00       	mov    $0x2e,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 00 f0 ff ff    	cmp    $0xfffffffffffff000,%rax		<-- trapping instruction
  30:	77 51                	ja     0x83
  32:	c3                   	ret
  33:	48 83 ec 28          	sub    $0x28,%rsp
  37:	89 54 24 1c          	mov    %edx,0x1c(%rsp)
  3b:	48 89 74 24 10       	mov    %rsi,0x10(%rsp)

Code starting with the faulting instruction
===========================================
   0:	48 3d 00 f0 ff ff    	cmp    $0xfffffffffffff000,%rax
   6:	77 51                	ja     0x59
   8:	c3                   	ret
   9:	48 83 ec 28          	sub    $0x28,%rsp
   d:	89 54 24 1c          	mov    %edx,0x1c(%rsp)
  11:	48 89 74 24 10       	mov    %rsi,0x10(%rsp)
[  416.312438][ T4315] RSP: 002b:00007ffd5ede88d8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[  416.312902][ T4315] RAX: ffffffffffffffda RBX: 00007ffd5ede9010 RCX: 00007fb6759631e7
[  416.313384][ T4315] RDX: 0000000000000000 RSI: 00007ffd5ede8940 RDI: 0000000000000005
[  416.313863][ T4315] RBP: 0000000000000006 R08: 0000000000000078 R09: 0000000000000000
[  416.314339][ T4315] R10: 00007fb6759f1ac0 R11: 0000000000000246 R12: 00007ffd5ede9048
[  416.314802][ T4315] R13: 00000000686e79f0 R14: 0000000000499600 R15: 00007ffd5ede8a30
| [  420.224838][ T4345] ------------[ cut here ]------------
| [ 420.225169][ T4345] WARNING: CPU: 3 PID: 4345 at ./include/net/netdev_lock.h:17 netif_set_mtu_ext (./include/net/netdev_lock.h:17 ./include/net/netdev_lock.h:15 ./include/net/netdev_lock.h:25 net/core/dev.c:9610) 
| [  420.225769][ T4345] Modules linked in: sctp act_gact cls_flower sch_ingress vxlan ip6_gre gre [last unloaded: test_bpf]
| [  420.227598][ T4345] Tainted: [W]=WARN
[  420.227836][ T4345] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 420.228232][ T4345] RIP: 0010:netif_set_mtu_ext (./include/net/netdev_lock.h:17 ./include/net/netdev_lock.h:15 ./include/net/netdev_lock.h:25 net/core/dev.c:9610) 
[ 420.228550][ T4345] Code: 00 00 8b 05 77 04 bc 02 85 c0 0f 84 52 fe ff ff 48 8d bb c0 0c 00 00 be ff ff ff ff e8 da fc 9b 00 85 c0 0f 85 39 fe ff ff 90 <0f> 0b 90 e9 30 fe ff ff 48 b8 00 00 00 00 00 fc ff df 4c 89 fa 48
All code
========
   0:	00 00                	add    %al,(%rax)
   2:	8b 05 77 04 bc 02    	mov    0x2bc0477(%rip),%eax        # 0x2bc047f
   8:	85 c0                	test   %eax,%eax
   a:	0f 84 52 fe ff ff    	je     0xfffffffffffffe62
  10:	48 8d bb c0 0c 00 00 	lea    0xcc0(%rbx),%rdi
  17:	be ff ff ff ff       	mov    $0xffffffff,%esi
  1c:	e8 da fc 9b 00       	call   0x9bfcfb
  21:	85 c0                	test   %eax,%eax
  23:	0f 85 39 fe ff ff    	jne    0xfffffffffffffe62
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	e9 30 fe ff ff       	jmp    0xfffffffffffffe62
  32:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
  39:	fc ff df 
  3c:	4c 89 fa             	mov    %r15,%rdx
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	e9 30 fe ff ff       	jmp    0xfffffffffffffe38
   8:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
   f:	fc ff df 
  12:	4c 89 fa             	mov    %r15,%rdx
  15:	48                   	rex.W
[  420.229643][ T4345] RSP: 0018:ffffc90008da7080 EFLAGS: 00010246
[  420.230036][ T4345] RAX: 0000000000000000 RBX: ffff888013baa000 RCX: 0000000000000001
[  420.230496][ T4345] RDX: 0000000000000000 RSI: ffffffff93510751 RDI: ffffffff92c58280
[  420.230959][ T4345] RBP: ffffc90008da7168 R08: 0000000000000000 R09: 0000000000000000
[  420.231413][ T4345] R10: ffffc90008da7198 R11: ffffffff93f8d1e0 R12: 1ffff920011b4e14
[  420.231875][ T4345] R13: 00000000000005dc R14: ffffc90008da7198 R15: ffff888013baaf48
[  420.232333][ T4345] FS:  00007fda217d6800(0000) GS:ffff8880d7519000(0000) knlGS:0000000000000000
[  420.232867][ T4345] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  420.233263][ T4345] CR2: 00007fda219c1ba0 CR3: 0000000011e93001 CR4: 0000000000772ef0
[  420.233729][ T4345] PKRU: 55555554
[  420.233965][ T4345] Call Trace:
[  420.234192][ T4345]  <TASK>
[ 420.234350][ T4345] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 420.234658][ T4345] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 420.234981][ T4345] netif_set_mtu (net/core/dev.c:9652) 
[ 420.235283][ T4345] ? __pfx_netif_set_mtu (net/core/dev.c:9647) 
[ 420.235601][ T4345] dev_set_mtu (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:47 net/core/dev_api.c:249) 
[ 420.235828][ T4345] br_mtu_auto_adjust (net/bridge/br_if.c:525) 
[ 420.236141][ T4345] br_add_if (net/bridge/br_if.c:697) 
[ 420.236383][ T4345] do_set_master (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:41 net/core/rtnetlink.c:2949) 
[ 420.236683][ T4345] ? rtnl_configure_link (net/core/rtnetlink.c:3592) 
[ 420.237010][ T4345] rtnl_newlink_create (net/core/rtnetlink.c:3840) 
[ 420.237318][ T4345] ? __pfx_rtnl_newlink_create (net/core/rtnetlink.c:3791) 
[ 420.237619][ T4345] ? __dev_get_by_name (net/core/dev.c:865) 
[ 420.237920][ T4345] ? rtnl_dev_get (net/core/rtnetlink.c:3404) 
[ 420.238228][ T4345] ? __pfx_rtnl_dev_get (net/core/rtnetlink.c:3404) 
[ 420.238538][ T4345] ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4056) 
[ 420.238835][ T4345] ? reacquire_held_locks (kernel/locking/lockdep.c:5388) 
[ 420.239154][ T4345] __rtnl_newlink (net/core/rtnetlink.c:3942) 
[ 420.239464][ T4345] rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4058) 
[ 420.239774][ T4345] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 420.240096][ T4345] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/rtnetlink.c:6944) 
[ 420.240395][ T4345] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 420.240697][ T4345] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 420.241014][ T4345] rtnetlink_rcv_msg (net/core/rtnetlink.c:6946) 
[ 420.241317][ T4345] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 420.241637][ T4345] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 420.241954][ T4345] netlink_rcv_skb (net/netlink/af_netlink.c:2551) 
[ 420.242254][ T4345] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 420.242555][ T4345] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2528) 
[ 420.242870][ T4345] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/netlink/af_netlink.c:340) 
[ 420.243202][ T4345] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 ./include/net/netns/generic.h:48 net/netlink/af_netlink.c:333) 
[ 420.243508][ T4345] netlink_unicast (net/netlink/af_netlink.c:1321 net/netlink/af_netlink.c:1346) 
[ 420.243821][ T4345] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1331) 
[ 420.244132][ T4345] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 420.244438][ T4345] netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 420.244747][ T4345] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1815) 
[ 420.245060][ T4345] ? __import_iovec (lib/iov_iter.c:1441 lib/iov_iter.c:1456) 
[ 420.245369][ T4345] ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 420.245670][ T4345] ? __pfx_____sys_sendmsg (net/socket.c:2560) 
[ 420.245982][ T4345] ? __pfx_copy_msghdr_from_user (net/socket.c:2540) 
[ 420.246368][ T4345] ___sys_sendmsg (net/socket.c:2670) 
[ 420.246673][ T4345] ? __pfx____sys_sendmsg (net/socket.c:2657) 
[ 420.246989][ T4345] ? rcu_read_lock_any_held (kernel/rcu/update.c:386 kernel/rcu/update.c:380) 
[ 420.247297][ T4345] ? rcu_read_lock_any_held (kernel/rcu/update.c:386 kernel/rcu/update.c:380) 
[ 420.247595][ T4345] ? validate_chain (kernel/locking/lockdep.c:3804 kernel/locking/lockdep.c:3824 kernel/locking/lockdep.c:3879) 
[ 420.247897][ T4345] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 420.248228][ T4345] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 420.248539][ T4345] __sys_sendmsg (net/socket.c:2700) 
[ 420.248838][ T4345] ? __pfx___sys_sendmsg (net/socket.c:2685) 
[ 420.249160][ T4345] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 420.249463][ T4345] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 420.249765][ T4345] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[  420.250149][ T4345] RIP: 0033:0x7fda219a31e7
[ 420.250458][ T4345] Code: 0e 00 f7 d8 64 89 02 48 c7 c0 ff ff ff ff eb b9 0f 1f 00 f3 0f 1e fa 64 8b 04 25 18 00 00 00 85 c0 75 10 b8 2e 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 51 c3 48 83 ec 28 89 54 24 1c 48 89 74 24 10
All code
========
   0:	0e                   	(bad)
   1:	00 f7                	add    %dh,%bh
   3:	d8 64 89 02          	fsubs  0x2(%rcx,%rcx,4)
   7:	48 c7 c0 ff ff ff ff 	mov    $0xffffffffffffffff,%rax
   e:	eb b9                	jmp    0xffffffffffffffc9
  10:	0f 1f 00             	nopl   (%rax)
  13:	f3 0f 1e fa          	endbr64
  17:	64 8b 04 25 18 00 00 	mov    %fs:0x18,%eax
  1e:	00 
  1f:	85 c0                	test   %eax,%eax
  21:	75 10                	jne    0x33
  23:	b8 2e 00 00 00       	mov    $0x2e,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 00 f0 ff ff    	cmp    $0xfffffffffffff000,%rax		<-- trapping instruction
  30:	77 51                	ja     0x83
  32:	c3                   	ret
  33:	48 83 ec 28          	sub    $0x28,%rsp
  37:	89 54 24 1c          	mov    %edx,0x1c(%rsp)
  3b:	48 89 74 24 10       	mov    %rsi,0x10(%rsp)

Code starting with the faulting instruction
===========================================
   0:	48 3d 00 f0 ff ff    	cmp    $0xfffffffffffff000,%rax
   6:	77 51                	ja     0x59
   8:	c3                   	ret
   9:	48 83 ec 28          	sub    $0x28,%rsp
   d:	89 54 24 1c          	mov    %edx,0x1c(%rsp)
  11:	48 89 74 24 10       	mov    %rsi,0x10(%rsp)
[  420.251568][ T4345] RSP: 002b:00007ffc60652088 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[  420.252031][ T4345] RAX: ffffffffffffffda RBX: 00007ffc606527c0 RCX: 00007fda219a31e7
[  420.252487][ T4345] RDX: 0000000000000000 RSI: 00007ffc606520f0 RDI: 0000000000000005
[  420.252937][ T4345] RBP: 0000000000000006 R08: 0000000000000078 R09: 0000000000000000
[  420.253400][ T4345] R10: 00007fda21a31ac0 R11: 0000000000000246 R12: 00007ffc606527f8
[  420.253851][ T4345] R13: 00000000686e79f4 R14: 0000000000499600 R15: 00007ffc606521e0
| [  439.068480][ T4518] ------------[ cut here ]------------
| [ 439.068812][ T4518] WARNING: CPU: 2 PID: 4518 at ./include/net/netdev_lock.h:17 netif_set_mtu_ext (./include/net/netdev_lock.h:17 ./include/net/netdev_lock.h:15 ./include/net/netdev_lock.h:25 net/core/dev.c:9610) 
| [  439.069454][ T4518] Modules linked in: sctp act_gact cls_flower sch_ingress vxlan ip6_gre gre [last unloaded: test_bpf]
| [  439.070736][ T4518] Tainted: [W]=WARN
[  439.070995][ T4518] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 439.071396][ T4518] RIP: 0010:netif_set_mtu_ext (./include/net/netdev_lock.h:17 ./include/net/netdev_lock.h:15 ./include/net/netdev_lock.h:25 net/core/dev.c:9610) 
[ 439.071729][ T4518] Code: 00 00 8b 05 77 04 bc 02 85 c0 0f 84 52 fe ff ff 48 8d bb c0 0c 00 00 be ff ff ff ff e8 da fc 9b 00 85 c0 0f 85 39 fe ff ff 90 <0f> 0b 90 e9 30 fe ff ff 48 b8 00 00 00 00 00 fc ff df 4c 89 fa 48
All code
========
   0:	00 00                	add    %al,(%rax)
   2:	8b 05 77 04 bc 02    	mov    0x2bc0477(%rip),%eax        # 0x2bc047f
   8:	85 c0                	test   %eax,%eax
   a:	0f 84 52 fe ff ff    	je     0xfffffffffffffe62
  10:	48 8d bb c0 0c 00 00 	lea    0xcc0(%rbx),%rdi
  17:	be ff ff ff ff       	mov    $0xffffffff,%esi
  1c:	e8 da fc 9b 00       	call   0x9bfcfb
  21:	85 c0                	test   %eax,%eax
  23:	0f 85 39 fe ff ff    	jne    0xfffffffffffffe62
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	e9 30 fe ff ff       	jmp    0xfffffffffffffe62
  32:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
  39:	fc ff df 
  3c:	4c 89 fa             	mov    %r15,%rdx
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	e9 30 fe ff ff       	jmp    0xfffffffffffffe38
   8:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
   f:	fc ff df 
  12:	4c 89 fa             	mov    %r15,%rdx
  15:	48                   	rex.W
[  439.073756][ T4518] RSP: 0018:ffffc900093d7080 EFLAGS: 00010246
[  439.074173][ T4518] RAX: 0000000000000000 RBX: ffff888011b0a000 RCX: 0000000000000001
[  439.074635][ T4518] RDX: 0000000000000000 RSI: ffffffff93510751 RDI: ffffffff92c58280
[  439.075106][ T4518] RBP: ffffc900093d7168 R08: 0000000000000000 R09: 0000000000000000
[  439.075569][ T4518] R10: ffffc900093d7198 R11: ffffffff93f8d1e0 R12: 1ffff9200127ae14
[  439.076043][ T4518] R13: 00000000000005dc R14: ffffc900093d7198 R15: ffff888011b0af48
[  439.076516][ T4518] FS:  00007fea7f11a800(0000) GS:ffff8880d7499000(0000) knlGS:0000000000000000
[  439.077070][ T4518] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  439.077460][ T4518] CR2: 000000000043d940 CR3: 00000000171c5006 CR4: 0000000000772ef0
[  439.077929][ T4518] PKRU: 55555554
[  439.078178][ T4518] Call Trace:
[  439.078424][ T4518]  <TASK>
[ 439.078593][ T4518] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 439.078908][ T4518] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 439.079248][ T4518] netif_set_mtu (net/core/dev.c:9652) 
[ 439.079565][ T4518] ? __pfx_netif_set_mtu (net/core/dev.c:9647) 
[ 439.079896][ T4518] dev_set_mtu (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:47 net/core/dev_api.c:249) 
[ 439.080152][ T4518] br_mtu_auto_adjust (net/bridge/br_if.c:525) 
[ 439.080472][ T4518] br_add_if (net/bridge/br_if.c:697) 
[ 439.080729][ T4518] do_set_master (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:41 net/core/rtnetlink.c:2949) 
[ 439.081059][ T4518] ? rtnl_configure_link (net/core/rtnetlink.c:3592) 
[ 439.081374][ T4518] rtnl_newlink_create (net/core/rtnetlink.c:3840) 
[ 439.081709][ T4518] ? __pfx_rtnl_newlink_create (net/core/rtnetlink.c:3791) 
[ 439.082033][ T4518] ? __dev_get_by_name (net/core/dev.c:865) 
[ 439.082352][ T4518] ? rtnl_dev_get (net/core/rtnetlink.c:3404) 
[ 439.082664][ T4518] ? __pfx_rtnl_dev_get (net/core/rtnetlink.c:3404) 
[ 439.083016][ T4518] ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4056) 
[ 439.083332][ T4518] ? reacquire_held_locks (kernel/locking/lockdep.c:5388) 
[ 439.083655][ T4518] __rtnl_newlink (net/core/rtnetlink.c:3942) 
[ 439.083993][ T4518] rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4058) 
[ 439.084317][ T4518] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 439.084642][ T4518] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/rtnetlink.c:6944) 
[ 439.084965][ T4518] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 439.085284][ T4518] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 439.085604][ T4518] rtnetlink_rcv_msg (net/core/rtnetlink.c:6946) 
[ 439.085921][ T4518] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 439.086250][ T4518] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 439.086579][ T4518] netlink_rcv_skb (net/netlink/af_netlink.c:2551) 
[ 439.086894][ T4518] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 439.087230][ T4518] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2528) 
[ 439.087557][ T4518] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/netlink/af_netlink.c:340) 
[ 439.087873][ T4518] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 ./include/net/netns/generic.h:48 net/netlink/af_netlink.c:333) 
[ 439.088202][ T4518] netlink_unicast (net/netlink/af_netlink.c:1321 net/netlink/af_netlink.c:1346) 
[ 439.088522][ T4518] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1331) 
[ 439.088835][ T4518] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 439.089165][ T4518] netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 439.089481][ T4518] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1815) 
[ 439.089796][ T4518] ? __import_iovec (lib/iov_iter.c:1441 lib/iov_iter.c:1456) 
[ 439.090130][ T4518] ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 439.090449][ T4518] ? __pfx_____sys_sendmsg (net/socket.c:2560) 
[ 439.090760][ T4518] ? __pfx_copy_msghdr_from_user (net/socket.c:2540) 
[ 439.091175][ T4518] ___sys_sendmsg (net/socket.c:2670) 
[ 439.091495][ T4518] ? __pfx____sys_sendmsg (net/socket.c:2657) 
[ 439.091825][ T4518] ? __pfx_handle_pte_fault (mm/memory.c:6026) 
[ 439.092159][ T4518] ? reacquire_held_locks (kernel/locking/lockdep.c:5388) 
[ 439.092478][ T4518] ? do_user_addr_fault (arch/x86/mm/fault.c:1327) 
[ 439.092794][ T4518] ? __handle_mm_fault (mm/memory.c:6212) 
[ 439.093121][ T4518] ? __pfx___handle_mm_fault (mm/memory.c:6121) 
[ 439.093432][ T4518] ? lock_vma_under_rcu (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 mm/mmap_lock.c:171) 
[ 439.093766][ T4518] __sys_sendmsg (net/socket.c:2700) 
[ 439.094089][ T4518] ? __pfx___sys_sendmsg (net/socket.c:2685) 
[ 439.094405][ T4518] ? exc_page_fault (./arch/x86/include/asm/irqflags.h:26 ./arch/x86/include/asm/irqflags.h:109 ./arch/x86/include/asm/irqflags.h:151 arch/x86/mm/fault.c:1484 arch/x86/mm/fault.c:1532) 
[ 439.094727][ T4518] ? do_user_addr_fault (./arch/x86/include/asm/atomic.h:93 ./include/linux/atomic/atomic-arch-fallback.h:949 ./include/linux/atomic/atomic-instrumented.h:401 ./include/linux/refcount.h:389 ./include/linux/refcount.h:432 ./include/linux/mmap_lock.h:142 ./include/linux/mmap_lock.h:237 arch/x86/mm/fault.c:1338) 
[ 439.095057][ T4518] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 439.095374][ T4518] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 439.095690][ T4518] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[  439.096087][ T4518] RIP: 0033:0x7fea7f2e71e7
[ 439.096412][ T4518] Code: 0e 00 f7 d8 64 89 02 48 c7 c0 ff ff ff ff eb b9 0f 1f 00 f3 0f 1e fa 64 8b 04 25 18 00 00 00 85 c0 75 10 b8 2e 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 51 c3 48 83 ec 28 89 54 24 1c 48 89 74 24 10
All code
========
   0:	0e                   	(bad)
   1:	00 f7                	add    %dh,%bh
   3:	d8 64 89 02          	fsubs  0x2(%rcx,%rcx,4)
   7:	48 c7 c0 ff ff ff ff 	mov    $0xffffffffffffffff,%rax
   e:	eb b9                	jmp    0xffffffffffffffc9
  10:	0f 1f 00             	nopl   (%rax)
  13:	f3 0f 1e fa          	endbr64
  17:	64 8b 04 25 18 00 00 	mov    %fs:0x18,%eax
  1e:	00 
  1f:	85 c0                	test   %eax,%eax
  21:	75 10                	jne    0x33
  23:	b8 2e 00 00 00       	mov    $0x2e,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 00 f0 ff ff    	cmp    $0xfffffffffffff000,%rax		<-- trapping instruction
  30:	77 51                	ja     0x83
  32:	c3                   	ret
  33:	48 83 ec 28          	sub    $0x28,%rsp
  37:	89 54 24 1c          	mov    %edx,0x1c(%rsp)
  3b:	48 89 74 24 10       	mov    %rsi,0x10(%rsp)

Code starting with the faulting instruction
===========================================
   0:	48 3d 00 f0 ff ff    	cmp    $0xfffffffffffff000,%rax
   6:	77 51                	ja     0x59
   8:	c3                   	ret
   9:	48 83 ec 28          	sub    $0x28,%rsp
   d:	89 54 24 1c          	mov    %edx,0x1c(%rsp)
  11:	48 89 74 24 10       	mov    %rsi,0x10(%rsp)
[  439.097521][ T4518] RSP: 002b:00007fff9a472a88 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[  439.098001][ T4518] RAX: ffffffffffffffda RBX: 00007fff9a4731c0 RCX: 00007fea7f2e71e7
[  439.098463][ T4518] RDX: 0000000000000000 RSI: 00007fff9a472af0 RDI: 0000000000000005
[  439.098937][ T4518] RBP: 0000000000000006 R08: 000000000000006c R09: 0000000000000000
[  439.099411][ T4518] R10: 00007fea7f375ac0 R11: 0000000000000246 R12: 00007fff9a4731f8
[  439.099875][ T4518] R13: 00000000686e7a07 R14: 0000000000499600 R15: 00007fff9a472be0
| [  443.018863][ T4548] ------------[ cut here ]------------
| [ 443.019203][ T4548] WARNING: CPU: 3 PID: 4548 at ./include/net/netdev_lock.h:17 netif_set_mtu_ext (./include/net/netdev_lock.h:17 ./include/net/netdev_lock.h:15 ./include/net/netdev_lock.h:25 net/core/dev.c:9610) 
| [  443.019807][ T4548] Modules linked in: sctp act_gact cls_flower sch_ingress vxlan ip6_gre gre [last unloaded: test_bpf]
| [  443.021071][ T4548] Tainted: [W]=WARN
[  443.021301][ T4548] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 443.021694][ T4548] RIP: 0010:netif_set_mtu_ext (./include/net/netdev_lock.h:17 ./include/net/netdev_lock.h:15 ./include/net/netdev_lock.h:25 net/core/dev.c:9610) 
[ 443.022627][ T4548] Code: 00 00 8b 05 77 04 bc 02 85 c0 0f 84 52 fe ff ff 48 8d bb c0 0c 00 00 be ff ff ff ff e8 da fc 9b 00 85 c0 0f 85 39 fe ff ff 90 <0f> 0b 90 e9 30 fe ff ff 48 b8 00 00 00 00 00 fc ff df 4c 89 fa 48
All code
========
   0:	00 00                	add    %al,(%rax)
   2:	8b 05 77 04 bc 02    	mov    0x2bc0477(%rip),%eax        # 0x2bc047f
   8:	85 c0                	test   %eax,%eax
   a:	0f 84 52 fe ff ff    	je     0xfffffffffffffe62
  10:	48 8d bb c0 0c 00 00 	lea    0xcc0(%rbx),%rdi
  17:	be ff ff ff ff       	mov    $0xffffffff,%esi
  1c:	e8 da fc 9b 00       	call   0x9bfcfb
  21:	85 c0                	test   %eax,%eax
  23:	0f 85 39 fe ff ff    	jne    0xfffffffffffffe62
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	e9 30 fe ff ff       	jmp    0xfffffffffffffe62
  32:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
  39:	fc ff df 
  3c:	4c 89 fa             	mov    %r15,%rdx
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	e9 30 fe ff ff       	jmp    0xfffffffffffffe38
   8:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
   f:	fc ff df 
  12:	4c 89 fa             	mov    %r15,%rdx
  15:	48                   	rex.W
[  443.023733][ T4548] RSP: 0018:ffffc900094f7080 EFLAGS: 00010246
[  443.024140][ T4548] RAX: 0000000000000000 RBX: ffff888005292000 RCX: 0000000000000001
[  443.024609][ T4548] RDX: 0000000000000000 RSI: ffffffff93510751 RDI: ffffffff92c58280
[  443.025081][ T4548] RBP: ffffc900094f7168 R08: 0000000000000000 R09: 0000000000000000
[  443.025549][ T4548] R10: ffffc900094f7198 R11: ffffffff93f8d1e0 R12: 1ffff9200129ee14
[  443.026007][ T4548] R13: 00000000000005dc R14: ffffc900094f7198 R15: ffff888005292f48
[  443.026488][ T4548] FS:  00007ff48e8d5800(0000) GS:ffff8880d7519000(0000) knlGS:0000000000000000
[  443.027039][ T4548] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  443.027445][ T4548] CR2: 000000000043d940 CR3: 000000000eb83002 CR4: 0000000000772ef0
[  443.027919][ T4548] PKRU: 55555554
[  443.028161][ T4548] Call Trace:
[  443.028406][ T4548]  <TASK>
[ 443.028576][ T4548] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 443.028888][ T4548] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 443.029241][ T4548] netif_set_mtu (net/core/dev.c:9652) 
[ 443.029556][ T4548] ? __pfx_netif_set_mtu (net/core/dev.c:9647) 
[ 443.029885][ T4548] dev_set_mtu (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:47 net/core/dev_api.c:249) 
[ 443.030136][ T4548] br_mtu_auto_adjust (net/bridge/br_if.c:525) 
[ 443.030456][ T4548] br_add_if (net/bridge/br_if.c:697) 
[ 443.030715][ T4548] do_set_master (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:41 net/core/rtnetlink.c:2949) 
[ 443.031045][ T4548] ? rtnl_configure_link (net/core/rtnetlink.c:3592) 
[ 443.031364][ T4548] rtnl_newlink_create (net/core/rtnetlink.c:3840) 
[ 443.031702][ T4548] ? __pfx_rtnl_newlink_create (net/core/rtnetlink.c:3791) 
[ 443.032026][ T4548] ? __dev_get_by_name (net/core/dev.c:865) 
[ 443.032342][ T4548] ? rtnl_dev_get (net/core/rtnetlink.c:3404) 
[ 443.032665][ T4548] ? __pfx_rtnl_dev_get (net/core/rtnetlink.c:3404) 
[ 443.033003][ T4548] ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4056) 
[ 443.033321][ T4548] ? reacquire_held_locks (kernel/locking/lockdep.c:5388) 
[ 443.033651][ T4548] __rtnl_newlink (net/core/rtnetlink.c:3942) 
[ 443.033987][ T4548] rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4058) 
[ 443.034303][ T4548] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 443.034642][ T4548] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/rtnetlink.c:6944) 
[ 443.034968][ T4548] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 443.035285][ T4548] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 443.035614][ T4548] rtnetlink_rcv_msg (net/core/rtnetlink.c:6946) 
[ 443.035930][ T4548] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 443.036245][ T4548] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 443.036568][ T4548] netlink_rcv_skb (net/netlink/af_netlink.c:2551) 
[ 443.036870][ T4548] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 443.037191][ T4548] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2528) 
[ 443.037511][ T4548] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/netlink/af_netlink.c:340) 
[ 443.037832][ T4548] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 ./include/net/netns/generic.h:48 net/netlink/af_netlink.c:333) 
[ 443.038146][ T4548] netlink_unicast (net/netlink/af_netlink.c:1321 net/netlink/af_netlink.c:1346) 
[ 443.038451][ T4548] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1331) 
[ 443.038751][ T4548] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 443.039068][ T4548] netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 443.039373][ T4548] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1815) 
[ 443.039674][ T4548] ? __import_iovec (lib/iov_iter.c:1441 lib/iov_iter.c:1456) 
[ 443.040005][ T4548] ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 443.040316][ T4548] ? __pfx_____sys_sendmsg (net/socket.c:2560) 
[ 443.040629][ T4548] ? __pfx_copy_msghdr_from_user (net/socket.c:2540) 
[ 443.041033][ T4548] ___sys_sendmsg (net/socket.c:2670) 
[ 443.041341][ T4548] ? __pfx____sys_sendmsg (net/socket.c:2657) 
[ 443.041673][ T4548] ? __pfx_handle_pte_fault (mm/memory.c:6026) 
[ 443.041990][ T4548] ? reacquire_held_locks (kernel/locking/lockdep.c:5388) 
[ 443.042312][ T4548] ? do_user_addr_fault (arch/x86/mm/fault.c:1327) 
[ 443.042616][ T4548] ? __handle_mm_fault (mm/memory.c:6212) 
[ 443.042922][ T4548] ? __pfx___handle_mm_fault (mm/memory.c:6121) 
[ 443.043237][ T4548] ? lock_vma_under_rcu (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 mm/mmap_lock.c:171) 
[ 443.043575][ T4548] __sys_sendmsg (net/socket.c:2700) 
[ 443.043877][ T4548] ? __pfx___sys_sendmsg (net/socket.c:2685) 
[ 443.044200][ T4548] ? exc_page_fault (./arch/x86/include/asm/irqflags.h:26 ./arch/x86/include/asm/irqflags.h:109 ./arch/x86/include/asm/irqflags.h:151 arch/x86/mm/fault.c:1484 arch/x86/mm/fault.c:1532) 
[ 443.044536][ T4548] ? do_user_addr_fault (./arch/x86/include/asm/atomic.h:93 ./include/linux/atomic/atomic-arch-fallback.h:949 ./include/linux/atomic/atomic-instrumented.h:401 ./include/linux/refcount.h:389 ./include/linux/refcount.h:432 ./include/linux/mmap_lock.h:142 ./include/linux/mmap_lock.h:237 arch/x86/mm/fault.c:1338) 
[ 443.044839][ T4548] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 443.045175][ T4548] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 443.045505][ T4548] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[  443.045892][ T4548] RIP: 0033:0x7ff48eaa21e7
[ 443.046211][ T4548] Code: 0e 00 f7 d8 64 89 02 48 c7 c0 ff ff ff ff eb b9 0f 1f 00 f3 0f 1e fa 64 8b 04 25 18 00 00 00 85 c0 75 10 b8 2e 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 51 c3 48 83 ec 28 89 54 24 1c 48 89 74 24 10
All code
========
   0:	0e                   	(bad)
   1:	00 f7                	add    %dh,%bh
   3:	d8 64 89 02          	fsubs  0x2(%rcx,%rcx,4)
   7:	48 c7 c0 ff ff ff ff 	mov    $0xffffffffffffffff,%rax
   e:	eb b9                	jmp    0xffffffffffffffc9
  10:	0f 1f 00             	nopl   (%rax)
  13:	f3 0f 1e fa          	endbr64
  17:	64 8b 04 25 18 00 00 	mov    %fs:0x18,%eax
  1e:	00 
  1f:	85 c0                	test   %eax,%eax
  21:	75 10                	jne    0x33
  23:	b8 2e 00 00 00       	mov    $0x2e,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 00 f0 ff ff    	cmp    $0xfffffffffffff000,%rax		<-- trapping instruction
  30:	77 51                	ja     0x83
  32:	c3                   	ret
  33:	48 83 ec 28          	sub    $0x28,%rsp
  37:	89 54 24 1c          	mov    %edx,0x1c(%rsp)
  3b:	48 89 74 24 10       	mov    %rsi,0x10(%rsp)

Code starting with the faulting instruction
===========================================
   0:	48 3d 00 f0 ff ff    	cmp    $0xfffffffffffff000,%rax
   6:	77 51                	ja     0x59
   8:	c3                   	ret
   9:	48 83 ec 28          	sub    $0x28,%rsp
   d:	89 54 24 1c          	mov    %edx,0x1c(%rsp)
  11:	48 89 74 24 10       	mov    %rsi,0x10(%rsp)
[  443.047311][ T4548] RSP: 002b:00007fff5a25e698 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[  443.047780][ T4548] RAX: ffffffffffffffda RBX: 00007fff5a25edd0 RCX: 00007ff48eaa21e7
[  443.048252][ T4548] RDX: 0000000000000000 RSI: 00007fff5a25e700 RDI: 0000000000000005
[  443.048744][ T4548] RBP: 0000000000000006 R08: 000000000000006c R09: 0000000000000000
[  443.049224][ T4548] R10: 00007ff48eb30ac0 R11: 0000000000000246 R12: 00007fff5a25ee08
[  443.049685][ T4548] R13: 00000000686e7a0b R14: 0000000000499600 R15: 00007fff5a25e7f0
| [  449.711328][ T4614] ------------[ cut here ]------------
| [ 449.711651][ T4614] WARNING: CPU: 0 PID: 4614 at ./include/net/netdev_lock.h:17 netif_set_mtu_ext (./include/net/netdev_lock.h:17 ./include/net/netdev_lock.h:15 ./include/net/netdev_lock.h:25 net/core/dev.c:9610) 
| [  449.712953][ T4614] Modules linked in: sctp act_gact cls_flower sch_ingress vxlan ip6_gre gre [last unloaded: test_bpf]
| [  449.714199][ T4614] Tainted: [W]=WARN
[  449.714429][ T4614] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 449.714805][ T4614] RIP: 0010:netif_set_mtu_ext (./include/net/netdev_lock.h:17 ./include/net/netdev_lock.h:15 ./include/net/netdev_lock.h:25 net/core/dev.c:9610) 
[ 449.715131][ T4614] Code: 00 00 8b 05 77 04 bc 02 85 c0 0f 84 52 fe ff ff 48 8d bb c0 0c 00 00 be ff ff ff ff e8 da fc 9b 00 85 c0 0f 85 39 fe ff ff 90 <0f> 0b 90 e9 30 fe ff ff 48 b8 00 00 00 00 00 fc ff df 4c 89 fa 48
All code
========
   0:	00 00                	add    %al,(%rax)
   2:	8b 05 77 04 bc 02    	mov    0x2bc0477(%rip),%eax        # 0x2bc047f
   8:	85 c0                	test   %eax,%eax
   a:	0f 84 52 fe ff ff    	je     0xfffffffffffffe62
  10:	48 8d bb c0 0c 00 00 	lea    0xcc0(%rbx),%rdi
  17:	be ff ff ff ff       	mov    $0xffffffff,%esi
  1c:	e8 da fc 9b 00       	call   0x9bfcfb
  21:	85 c0                	test   %eax,%eax
  23:	0f 85 39 fe ff ff    	jne    0xfffffffffffffe62
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	e9 30 fe ff ff       	jmp    0xfffffffffffffe62
  32:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
  39:	fc ff df 
  3c:	4c 89 fa             	mov    %r15,%rdx
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	e9 30 fe ff ff       	jmp    0xfffffffffffffe38
   8:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
   f:	fc ff df 
  12:	4c 89 fa             	mov    %r15,%rdx
  15:	48                   	rex.W
[  449.716220][ T4614] RSP: 0018:ffffc900097a7080 EFLAGS: 00010246
[  449.716601][ T4614] RAX: 0000000000000000 RBX: ffff88800dd72000 RCX: 0000000000000001
[  449.717060][ T4614] RDX: 0000000000000000 RSI: ffffffff93510751 RDI: ffffffff92c58280
[  449.717515][ T4614] RBP: ffffc900097a7168 R08: 0000000000000000 R09: 0000000000000000
[  449.717972][ T4614] R10: ffffc900097a7198 R11: ffffffff93f8d1e0 R12: 1ffff920012f4e14
[  449.718420][ T4614] R13: 00000000000005dc R14: ffffc900097a7198 R15: ffff88800dd72f48
[  449.718870][ T4614] FS:  00007f24cea14800(0000) GS:ffff8880d7399000(0000) knlGS:0000000000000000
[  449.719418][ T4614] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  449.719798][ T4614] CR2: 00007f24cebffba0 CR3: 000000000c91e006 CR4: 0000000000772ef0
[  449.720258][ T4614] PKRU: 55555554
[  449.720484][ T4614] Call Trace:
[  449.720708][ T4614]  <TASK>
[ 449.720864][ T4614] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 449.721174][ T4614] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 449.721497][ T4614] netif_set_mtu (net/core/dev.c:9652) 
[ 449.721807][ T4614] ? __pfx_netif_set_mtu (net/core/dev.c:9647) 
[ 449.722132][ T4614] dev_set_mtu (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:47 net/core/dev_api.c:249) 
[ 449.722363][ T4614] br_mtu_auto_adjust (net/bridge/br_if.c:525) 
[ 449.722668][ T4614] br_add_if (net/bridge/br_if.c:697) 
[ 449.722909][ T4614] do_set_master (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:41 net/core/rtnetlink.c:2949) 
[ 449.723225][ T4614] ? rtnl_configure_link (net/core/rtnetlink.c:3592) 
[ 449.723532][ T4614] rtnl_newlink_create (net/core/rtnetlink.c:3840) 
[ 449.723845][ T4614] ? __pfx_rtnl_newlink_create (net/core/rtnetlink.c:3791) 
[ 449.724152][ T4614] ? __dev_get_by_name (net/core/dev.c:865) 
[ 449.724455][ T4614] ? rtnl_dev_get (net/core/rtnetlink.c:3404) 
[ 449.724754][ T4614] ? __pfx_rtnl_dev_get (net/core/rtnetlink.c:3404) 
[ 449.725067][ T4614] ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4056) 
[ 449.725365][ T4614] ? reacquire_held_locks (kernel/locking/lockdep.c:5388) 
[ 449.725669][ T4614] __rtnl_newlink (net/core/rtnetlink.c:3942) 
[ 449.725993][ T4614] rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4058) 
[ 449.726301][ T4614] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 449.726616][ T4614] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/rtnetlink.c:6944) 
[ 449.726914][ T4614] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 449.727235][ T4614] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 449.727538][ T4614] rtnetlink_rcv_msg (net/core/rtnetlink.c:6946) 
[ 449.727841][ T4614] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 449.728155][ T4614] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 449.728465][ T4614] netlink_rcv_skb (net/netlink/af_netlink.c:2551) 
[ 449.728764][ T4614] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 449.729077][ T4614] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2528) 
[ 449.729390][ T4614] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/netlink/af_netlink.c:340) 
[ 449.729689][ T4614] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 ./include/net/netns/generic.h:48 net/netlink/af_netlink.c:333) 
[ 449.730001][ T4614] netlink_unicast (net/netlink/af_netlink.c:1321 net/netlink/af_netlink.c:1346) 
[ 449.730306][ T4614] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1331) 
[ 449.730609][ T4614] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 449.730915][ T4614] netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 449.731236][ T4614] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1815) 
[ 449.731545][ T4614] ? __import_iovec (lib/iov_iter.c:1441 lib/iov_iter.c:1456) 
[ 449.731863][ T4614] ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 449.732174][ T4614] ? __pfx_____sys_sendmsg (net/socket.c:2560) 
[ 449.732473][ T4614] ? __pfx_copy_msghdr_from_user (net/socket.c:2540) 
[ 449.732862][ T4614] ___sys_sendmsg (net/socket.c:2670) 
[ 449.733179][ T4614] ? __pfx____sys_sendmsg (net/socket.c:2657) 
[ 449.733485][ T4614] ? rcu_read_lock_any_held (kernel/rcu/update.c:386 kernel/rcu/update.c:380) 
[ 449.733789][ T4614] ? rcu_read_lock_any_held (kernel/rcu/update.c:386 kernel/rcu/update.c:380) 
[ 449.734097][ T4614] ? validate_chain (kernel/locking/lockdep.c:3804 kernel/locking/lockdep.c:3824 kernel/locking/lockdep.c:3879) 
[ 449.734405][ T4614] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 449.734713][ T4614] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 449.735043][ T4614] __sys_sendmsg (net/socket.c:2700) 
[ 449.735348][ T4614] ? __pfx___sys_sendmsg (net/socket.c:2685) 
[ 449.735661][ T4614] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 449.735974][ T4614] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 449.736281][ T4614] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[  449.736655][ T4614] RIP: 0033:0x7f24cebe11e7
[ 449.736973][ T4614] Code: 0e 00 f7 d8 64 89 02 48 c7 c0 ff ff ff ff eb b9 0f 1f 00 f3 0f 1e fa 64 8b 04 25 18 00 00 00 85 c0 75 10 b8 2e 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 51 c3 48 83 ec 28 89 54 24 1c 48 89 74 24 10
All code
========
   0:	0e                   	(bad)
   1:	00 f7                	add    %dh,%bh
   3:	d8 64 89 02          	fsubs  0x2(%rcx,%rcx,4)
   7:	48 c7 c0 ff ff ff ff 	mov    $0xffffffffffffffff,%rax
   e:	eb b9                	jmp    0xffffffffffffffc9
  10:	0f 1f 00             	nopl   (%rax)
  13:	f3 0f 1e fa          	endbr64
  17:	64 8b 04 25 18 00 00 	mov    %fs:0x18,%eax
  1e:	00 
  1f:	85 c0                	test   %eax,%eax
  21:	75 10                	jne    0x33
  23:	b8 2e 00 00 00       	mov    $0x2e,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 00 f0 ff ff    	cmp    $0xfffffffffffff000,%rax		<-- trapping instruction
  30:	77 51                	ja     0x83
  32:	c3                   	ret
  33:	48 83 ec 28          	sub    $0x28,%rsp
  37:	89 54 24 1c          	mov    %edx,0x1c(%rsp)
  3b:	48 89 74 24 10       	mov    %rsi,0x10(%rsp)

Code starting with the faulting instruction
===========================================
   0:	48 3d 00 f0 ff ff    	cmp    $0xfffffffffffff000,%rax
   6:	77 51                	ja     0x59
   8:	c3                   	ret
   9:	48 83 ec 28          	sub    $0x28,%rsp
   d:	89 54 24 1c          	mov    %edx,0x1c(%rsp)
  11:	48 89 74 24 10       	mov    %rsi,0x10(%rsp)
[  449.738061][ T4614] RSP: 002b:00007ffea15feb58 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[  449.738517][ T4614] RAX: ffffffffffffffda RBX: 00007ffea15ff290 RCX: 00007f24cebe11e7
[  449.738984][ T4614] RDX: 0000000000000000 RSI: 00007ffea15febc0 RDI: 0000000000000005
[  449.739442][ T4614] RBP: 0000000000000006 R08: 0000000000000078 R09: 0000000000000000
[  449.739891][ T4614] R10: 00007f24cec6fac0 R11: 0000000000000246 R12: 00007ffea15ff2c8
[  449.740348][ T4614] R13: 00000000686e7a12 R14: 0000000000499600 R15: 00007ffea15fecb0
| [  453.702781][ T4644] ------------[ cut here ]------------
| [ 453.703099][ T4644] WARNING: CPU: 0 PID: 4644 at ./include/net/netdev_lock.h:17 netif_set_mtu_ext (./include/net/netdev_lock.h:17 ./include/net/netdev_lock.h:15 ./include/net/netdev_lock.h:25 net/core/dev.c:9610) 
| [  453.703710][ T4644] Modules linked in: sctp act_gact cls_flower sch_ingress vxlan ip6_gre gre [last unloaded: test_bpf]
| [  453.704993][ T4644] Tainted: [W]=WARN
[  453.705230][ T4644] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 453.705609][ T4644] RIP: 0010:netif_set_mtu_ext (./include/net/netdev_lock.h:17 ./include/net/netdev_lock.h:15 ./include/net/netdev_lock.h:25 net/core/dev.c:9610) 
[ 453.705927][ T4644] Code: 00 00 8b 05 77 04 bc 02 85 c0 0f 84 52 fe ff ff 48 8d bb c0 0c 00 00 be ff ff ff ff e8 da fc 9b 00 85 c0 0f 85 39 fe ff ff 90 <0f> 0b 90 e9 30 fe ff ff 48 b8 00 00 00 00 00 fc ff df 4c 89 fa 48
All code
========
   0:	00 00                	add    %al,(%rax)
   2:	8b 05 77 04 bc 02    	mov    0x2bc0477(%rip),%eax        # 0x2bc047f
   8:	85 c0                	test   %eax,%eax
   a:	0f 84 52 fe ff ff    	je     0xfffffffffffffe62
  10:	48 8d bb c0 0c 00 00 	lea    0xcc0(%rbx),%rdi
  17:	be ff ff ff ff       	mov    $0xffffffff,%esi
  1c:	e8 da fc 9b 00       	call   0x9bfcfb
  21:	85 c0                	test   %eax,%eax
  23:	0f 85 39 fe ff ff    	jne    0xfffffffffffffe62
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	e9 30 fe ff ff       	jmp    0xfffffffffffffe62
  32:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
  39:	fc ff df 
  3c:	4c 89 fa             	mov    %r15,%rdx
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	e9 30 fe ff ff       	jmp    0xfffffffffffffe38
   8:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
   f:	fc ff df 
  12:	4c 89 fa             	mov    %r15,%rdx
  15:	48                   	rex.W
[  453.707022][ T4644] RSP: 0018:ffffc90009947080 EFLAGS: 00010246
[  453.707404][ T4644] RAX: 0000000000000000 RBX: ffff88800b822000 RCX: 0000000000000001
[  453.707852][ T4644] RDX: 0000000000000000 RSI: ffffffff93510751 RDI: ffffffff92c58280
[  453.708818][ T4644] RBP: ffffc90009947168 R08: 0000000000000000 R09: 0000000000000000
[  453.709281][ T4644] R10: ffffc90009947198 R11: ffffffff93f8d1e0 R12: 1ffff92001328e14
[  453.709734][ T4644] R13: 00000000000005dc R14: ffffc90009947198 R15: ffff88800b822f48
[  453.710196][ T4644] FS:  00007f4e14c71800(0000) GS:ffff8880d7399000(0000) knlGS:0000000000000000
[  453.710732][ T4644] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  453.711130][ T4644] CR2: 00007f4e14d71130 CR3: 000000000b777004 CR4: 0000000000772ef0
[  453.711594][ T4644] PKRU: 55555554
[  453.711820][ T4644] Call Trace:
[  453.712051][ T4644]  <TASK>
[ 453.712208][ T4644] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 453.712518][ T4644] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 453.712832][ T4644] netif_set_mtu (net/core/dev.c:9652) 
[ 453.713141][ T4644] ? __pfx_netif_set_mtu (net/core/dev.c:9647) 
[ 453.713460][ T4644] dev_set_mtu (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:47 net/core/dev_api.c:249) 
[ 453.713692][ T4644] br_mtu_auto_adjust (net/bridge/br_if.c:525) 
[ 453.714006][ T4644] br_add_if (net/bridge/br_if.c:697) 
[ 453.714246][ T4644] do_set_master (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:41 net/core/rtnetlink.c:2949) 
[ 453.714545][ T4644] ? rtnl_configure_link (net/core/rtnetlink.c:3592) 
[ 453.714857][ T4644] rtnl_newlink_create (net/core/rtnetlink.c:3840) 
[ 453.715181][ T4644] ? __pfx_rtnl_newlink_create (net/core/rtnetlink.c:3791) 
[ 453.715482][ T4644] ? __dev_get_by_name (net/core/dev.c:865) 
[ 453.715783][ T4644] ? rtnl_dev_get (net/core/rtnetlink.c:3404) 
[ 453.716101][ T4644] ? __pfx_rtnl_dev_get (net/core/rtnetlink.c:3404) 
[ 453.716406][ T4644] ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4056) 
[ 453.716703][ T4644] ? reacquire_held_locks (kernel/locking/lockdep.c:5388) 
[ 453.717023][ T4644] __rtnl_newlink (net/core/rtnetlink.c:3942) 
[ 453.717334][ T4644] rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4058) 
[ 453.717641][ T4644] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 453.717963][ T4644] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/rtnetlink.c:6944) 
[ 453.718261][ T4644] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 453.718563][ T4644] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 453.718864][ T4644] rtnetlink_rcv_msg (net/core/rtnetlink.c:6946) 
[ 453.719184][ T4644] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 453.719501][ T4644] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 453.719813][ T4644] netlink_rcv_skb (net/netlink/af_netlink.c:2551) 
[ 453.720123][ T4644] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 453.720425][ T4644] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2528) 
[ 453.720736][ T4644] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/netlink/af_netlink.c:340) 
[ 453.721048][ T4644] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 ./include/net/netns/generic.h:48 net/netlink/af_netlink.c:333) 
[ 453.721350][ T4644] netlink_unicast (net/netlink/af_netlink.c:1321 net/netlink/af_netlink.c:1346) 
[ 453.721668][ T4644] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1331) 
[ 453.721979][ T4644] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 453.722287][ T4644] netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 453.722592][ T4644] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1815) 
[ 453.722896][ T4644] ? __import_iovec (lib/iov_iter.c:1441 lib/iov_iter.c:1456) 
[ 453.723224][ T4644] ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 453.723534][ T4644] ? __pfx_____sys_sendmsg (net/socket.c:2560) 
[ 453.723841][ T4644] ? __pfx_copy_msghdr_from_user (net/socket.c:2540) 
[ 453.724239][ T4644] ___sys_sendmsg (net/socket.c:2670) 
[ 453.724543][ T4644] ? __pfx____sys_sendmsg (net/socket.c:2657) 
[ 453.724844][ T4644] ? __pfx_handle_pte_fault (mm/memory.c:6026) 
[ 453.725159][ T4644] ? reacquire_held_locks (kernel/locking/lockdep.c:5388) 
[ 453.725459][ T4644] ? do_user_addr_fault (arch/x86/mm/fault.c:1327) 
[ 453.725775][ T4644] ? __handle_mm_fault (mm/memory.c:6212) 
[ 453.726093][ T4644] ? __pfx___handle_mm_fault (mm/memory.c:6121) 
[ 453.726393][ T4644] ? lock_vma_under_rcu (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 mm/mmap_lock.c:171) 
[ 453.726711][ T4644] __sys_sendmsg (net/socket.c:2700) 
[ 453.727031][ T4644] ? __pfx___sys_sendmsg (net/socket.c:2685) 
[ 453.727339][ T4644] ? exc_page_fault (./arch/x86/include/asm/irqflags.h:26 ./arch/x86/include/asm/irqflags.h:109 ./arch/x86/include/asm/irqflags.h:151 arch/x86/mm/fault.c:1484 arch/x86/mm/fault.c:1532) 
[ 453.727646][ T4644] ? do_user_addr_fault (./arch/x86/include/asm/atomic.h:93 ./include/linux/atomic/atomic-arch-fallback.h:949 ./include/linux/atomic/atomic-instrumented.h:401 ./include/linux/refcount.h:389 ./include/linux/refcount.h:432 ./include/linux/mmap_lock.h:142 ./include/linux/mmap_lock.h:237 arch/x86/mm/fault.c:1338) 
[ 453.727958][ T4644] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 453.728266][ T4644] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 453.728567][ T4644] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[  453.728937][ T4644] RIP: 0033:0x7f4e14e3e1e7
[ 453.729258][ T4644] Code: 0e 00 f7 d8 64 89 02 48 c7 c0 ff ff ff ff eb b9 0f 1f 00 f3 0f 1e fa 64 8b 04 25 18 00 00 00 85 c0 75 10 b8 2e 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 51 c3 48 83 ec 28 89 54 24 1c 48 89 74 24 10
All code
========
   0:	0e                   	(bad)
   1:	00 f7                	add    %dh,%bh
   3:	d8 64 89 02          	fsubs  0x2(%rcx,%rcx,4)
   7:	48 c7 c0 ff ff ff ff 	mov    $0xffffffffffffffff,%rax
   e:	eb b9                	jmp    0xffffffffffffffc9
  10:	0f 1f 00             	nopl   (%rax)
  13:	f3 0f 1e fa          	endbr64
  17:	64 8b 04 25 18 00 00 	mov    %fs:0x18,%eax
  1e:	00 
  1f:	85 c0                	test   %eax,%eax
  21:	75 10                	jne    0x33
  23:	b8 2e 00 00 00       	mov    $0x2e,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 00 f0 ff ff    	cmp    $0xfffffffffffff000,%rax		<-- trapping instruction
  30:	77 51                	ja     0x83
  32:	c3                   	ret
  33:	48 83 ec 28          	sub    $0x28,%rsp
  37:	89 54 24 1c          	mov    %edx,0x1c(%rsp)
  3b:	48 89 74 24 10       	mov    %rsi,0x10(%rsp)

Code starting with the faulting instruction
===========================================
   0:	48 3d 00 f0 ff ff    	cmp    $0xfffffffffffff000,%rax
   6:	77 51                	ja     0x59
   8:	c3                   	ret
   9:	48 83 ec 28          	sub    $0x28,%rsp
   d:	89 54 24 1c          	mov    %edx,0x1c(%rsp)
  11:	48 89 74 24 10       	mov    %rsi,0x10(%rsp)
[  453.730345][ T4644] RSP: 002b:00007ffd894f6308 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[  453.730801][ T4644] RAX: ffffffffffffffda RBX: 00007ffd894f6a40 RCX: 00007f4e14e3e1e7
[  453.731270][ T4644] RDX: 0000000000000000 RSI: 00007ffd894f6370 RDI: 0000000000000005
[  453.731731][ T4644] RBP: 0000000000000006 R08: 0000000000000078 R09: 0000000000000000
[  453.732198][ T4644] R10: 00007f4e14eccac0 R11: 0000000000000246 R12: 00007ffd894f6a78
[  453.732649][ T4644] R13: 00000000686e7a16 R14: 0000000000499600 R15: 00007ffd894f6460
| [  472.664674][ T4818] ------------[ cut here ]------------
| [ 472.665014][ T4818] WARNING: CPU: 3 PID: 4818 at ./include/net/netdev_lock.h:17 netif_set_mtu_ext (./include/net/netdev_lock.h:17 ./include/net/netdev_lock.h:15 ./include/net/netdev_lock.h:25 net/core/dev.c:9610) 
| [  472.665613][ T4818] Modules linked in: sctp act_gact cls_flower sch_ingress vxlan ip6_gre gre [last unloaded: test_bpf]
| [  472.666890][ T4818] Tainted: [W]=WARN
[  472.667136][ T4818] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 472.667519][ T4818] RIP: 0010:netif_set_mtu_ext (./include/net/netdev_lock.h:17 ./include/net/netdev_lock.h:15 ./include/net/netdev_lock.h:25 net/core/dev.c:9610) 
[ 472.667848][ T4818] Code: 00 00 8b 05 77 04 bc 02 85 c0 0f 84 52 fe ff ff 48 8d bb c0 0c 00 00 be ff ff ff ff e8 da fc 9b 00 85 c0 0f 85 39 fe ff ff 90 <0f> 0b 90 e9 30 fe ff ff 48 b8 00 00 00 00 00 fc ff df 4c 89 fa 48
All code
========
   0:	00 00                	add    %al,(%rax)
   2:	8b 05 77 04 bc 02    	mov    0x2bc0477(%rip),%eax        # 0x2bc047f
   8:	85 c0                	test   %eax,%eax
   a:	0f 84 52 fe ff ff    	je     0xfffffffffffffe62
  10:	48 8d bb c0 0c 00 00 	lea    0xcc0(%rbx),%rdi
  17:	be ff ff ff ff       	mov    $0xffffffff,%esi
  1c:	e8 da fc 9b 00       	call   0x9bfcfb
  21:	85 c0                	test   %eax,%eax
  23:	0f 85 39 fe ff ff    	jne    0xfffffffffffffe62
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	e9 30 fe ff ff       	jmp    0xfffffffffffffe62
  32:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
  39:	fc ff df 
  3c:	4c 89 fa             	mov    %r15,%rdx
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	e9 30 fe ff ff       	jmp    0xfffffffffffffe38
   8:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
   f:	fc ff df 
  12:	4c 89 fa             	mov    %r15,%rdx
  15:	48                   	rex.W
[  472.668956][ T4818] RSP: 0018:ffffc90009f57080 EFLAGS: 00010246
[  472.669352][ T4818] RAX: 0000000000000000 RBX: ffff888013ad2000 RCX: 0000000000000001
[  472.669811][ T4818] RDX: 0000000000000000 RSI: ffffffff93510751 RDI: ffffffff92c58280
[  472.670282][ T4818] RBP: ffffc90009f57168 R08: 0000000000000000 R09: 0000000000000000
[  472.670739][ T4818] R10: ffffc90009f57198 R11: ffffffff93f8d1e0 R12: 1ffff920013eae14
[  472.671204][ T4818] R13: 00000000000005dc R14: ffffc90009f57198 R15: ffff888013ad2f48
[  472.671675][ T4818] FS:  00007fc849b4c800(0000) GS:ffff8880d7519000(0000) knlGS:0000000000000000
[  472.672226][ T4818] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  472.672612][ T4818] CR2: 000000000043d940 CR3: 000000000d93e003 CR4: 0000000000772ef0
[  472.673082][ T4818] PKRU: 55555554
[  472.673312][ T4818] Call Trace:
[  472.673541][ T4818]  <TASK>
[ 472.673699][ T4818] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 472.674039][ T4818] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 472.674378][ T4818] netif_set_mtu (net/core/dev.c:9652) 
[ 472.674684][ T4818] ? __pfx_netif_set_mtu (net/core/dev.c:9647) 
[ 472.675017][ T4818] dev_set_mtu (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:47 net/core/dev_api.c:249) 
[ 472.675252][ T4818] br_mtu_auto_adjust (net/bridge/br_if.c:525) 
[ 472.675584][ T4818] br_add_if (net/bridge/br_if.c:697) 
[ 472.675843][ T4818] do_set_master (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:41 net/core/rtnetlink.c:2949) 
[ 472.676174][ T4818] ? rtnl_configure_link (net/core/rtnetlink.c:3592) 
[ 472.676499][ T4818] rtnl_newlink_create (net/core/rtnetlink.c:3840) 
[ 472.676809][ T4818] ? __pfx_rtnl_newlink_create (net/core/rtnetlink.c:3791) 
[ 472.677124][ T4818] ? __dev_get_by_name (net/core/dev.c:865) 
[ 472.677431][ T4818] ? rtnl_dev_get (net/core/rtnetlink.c:3404) 
[ 472.677736][ T4818] ? __pfx_rtnl_dev_get (net/core/rtnetlink.c:3404) 
[ 472.678059][ T4818] ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4056) 
[ 472.678363][ T4818] ? reacquire_held_locks (kernel/locking/lockdep.c:5388) 
[ 472.678675][ T4818] __rtnl_newlink (net/core/rtnetlink.c:3942) 
[ 472.679007][ T4818] rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4058) 
[ 472.679321][ T4818] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 472.679642][ T4818] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/rtnetlink.c:6944) 
[ 472.679957][ T4818] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 472.680269][ T4818] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 472.680574][ T4818] rtnetlink_rcv_msg (net/core/rtnetlink.c:6946) 
[ 472.680882][ T4818] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 472.681213][ T4818] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 472.681527][ T4818] netlink_rcv_skb (net/netlink/af_netlink.c:2551) 
[ 472.681843][ T4818] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 472.682178][ T4818] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2528) 
[ 472.682496][ T4818] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/netlink/af_netlink.c:340) 
[ 472.682812][ T4818] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 ./include/net/netns/generic.h:48 net/netlink/af_netlink.c:333) 
[ 472.683160][ T4818] netlink_unicast (net/netlink/af_netlink.c:1321 net/netlink/af_netlink.c:1346) 
[ 472.683501][ T4818] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1331) 
[ 472.683820][ T4818] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 472.684154][ T4818] netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 472.684488][ T4818] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1815) 
[ 472.684807][ T4818] ? __import_iovec (lib/iov_iter.c:1441 lib/iov_iter.c:1456) 
[ 472.685138][ T4818] ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 472.685446][ T4818] ? __pfx_____sys_sendmsg (net/socket.c:2560) 
[ 472.685750][ T4818] ? __pfx_copy_msghdr_from_user (net/socket.c:2540) 
[ 472.686156][ T4818] ___sys_sendmsg (net/socket.c:2670) 
[ 472.686481][ T4818] ? __pfx____sys_sendmsg (net/socket.c:2657) 
[ 472.686799][ T4818] ? __pfx_handle_pte_fault (mm/memory.c:6026) 
[ 472.687137][ T4818] ? reacquire_held_locks (kernel/locking/lockdep.c:5388) 
[ 472.687451][ T4818] ? do_user_addr_fault (arch/x86/mm/fault.c:1327) 
[ 472.687758][ T4818] ? __handle_mm_fault (mm/memory.c:6212) 
[ 472.688080][ T4818] ? __pfx___handle_mm_fault (mm/memory.c:6121) 
[ 472.688383][ T4818] ? lock_vma_under_rcu (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 mm/mmap_lock.c:171) 
[ 472.688707][ T4818] __sys_sendmsg (net/socket.c:2700) 
[ 472.689028][ T4818] ? __pfx___sys_sendmsg (net/socket.c:2685) 
[ 472.689334][ T4818] ? exc_page_fault (./arch/x86/include/asm/irqflags.h:26 ./arch/x86/include/asm/irqflags.h:109 ./arch/x86/include/asm/irqflags.h:151 arch/x86/mm/fault.c:1484 arch/x86/mm/fault.c:1532) 
[ 472.689646][ T4818] ? do_user_addr_fault (./arch/x86/include/asm/atomic.h:93 ./include/linux/atomic/atomic-arch-fallback.h:949 ./include/linux/atomic/atomic-instrumented.h:401 ./include/linux/refcount.h:389 ./include/linux/refcount.h:432 ./include/linux/mmap_lock.h:142 ./include/linux/mmap_lock.h:237 arch/x86/mm/fault.c:1338) 
[ 472.689965][ T4818] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 472.690283][ T4818] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 472.690590][ T4818] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[  472.690984][ T4818] RIP: 0033:0x7fc849d191e7
[ 472.691307][ T4818] Code: 0e 00 f7 d8 64 89 02 48 c7 c0 ff ff ff ff eb b9 0f 1f 00 f3 0f 1e fa 64 8b 04 25 18 00 00 00 85 c0 75 10 b8 2e 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 51 c3 48 83 ec 28 89 54 24 1c 48 89 74 24 10
All code
========
   0:	0e                   	(bad)
   1:	00 f7                	add    %dh,%bh
   3:	d8 64 89 02          	fsubs  0x2(%rcx,%rcx,4)
   7:	48 c7 c0 ff ff ff ff 	mov    $0xffffffffffffffff,%rax
   e:	eb b9                	jmp    0xffffffffffffffc9
  10:	0f 1f 00             	nopl   (%rax)
  13:	f3 0f 1e fa          	endbr64
  17:	64 8b 04 25 18 00 00 	mov    %fs:0x18,%eax
  1e:	00 
  1f:	85 c0                	test   %eax,%eax
  21:	75 10                	jne    0x33
  23:	b8 2e 00 00 00       	mov    $0x2e,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 00 f0 ff ff    	cmp    $0xfffffffffffff000,%rax		<-- trapping instruction
  30:	77 51                	ja     0x83
  32:	c3                   	ret
  33:	48 83 ec 28          	sub    $0x28,%rsp
  37:	89 54 24 1c          	mov    %edx,0x1c(%rsp)
  3b:	48 89 74 24 10       	mov    %rsi,0x10(%rsp)

Code starting with the faulting instruction
===========================================
   0:	48 3d 00 f0 ff ff    	cmp    $0xfffffffffffff000,%rax
   6:	77 51                	ja     0x59
   8:	c3                   	ret
   9:	48 83 ec 28          	sub    $0x28,%rsp
   d:	89 54 24 1c          	mov    %edx,0x1c(%rsp)
  11:	48 89 74 24 10       	mov    %rsi,0x10(%rsp)
[  472.692427][ T4818] RSP: 002b:00007ffe26eb34a8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[  472.692889][ T4818] RAX: ffffffffffffffda RBX: 00007ffe26eb3be0 RCX: 00007fc849d191e7
[  472.693357][ T4818] RDX: 0000000000000000 RSI: 00007ffe26eb3510 RDI: 0000000000000005
[  472.693818][ T4818] RBP: 0000000000000006 R08: 000000000000006c R09: 0000000000000000
[  472.694295][ T4818] R10: 00007fc849da7ac0 R11: 0000000000000246 R12: 00007ffe26eb3c18
[  472.694772][ T4818] R13: 00000000686e7a29 R14: 0000000000499600 R15: 00007ffe26eb3600
| [  476.590079][ T4848] ------------[ cut here ]------------
| [ 476.590387][ T4848] WARNING: CPU: 0 PID: 4848 at ./include/net/netdev_lock.h:17 netif_set_mtu_ext (./include/net/netdev_lock.h:17 ./include/net/netdev_lock.h:15 ./include/net/netdev_lock.h:25 net/core/dev.c:9610) 
| [  476.590996][ T4848] Modules linked in: sctp act_gact cls_flower sch_ingress vxlan ip6_gre gre [last unloaded: test_bpf]
| [  476.592275][ T4848] Tainted: [W]=WARN
[  476.592511][ T4848] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 476.592890][ T4848] RIP: 0010:netif_set_mtu_ext (./include/net/netdev_lock.h:17 ./include/net/netdev_lock.h:15 ./include/net/netdev_lock.h:25 net/core/dev.c:9610) 
[ 476.593212][ T4848] Code: 00 00 8b 05 77 04 bc 02 85 c0 0f 84 52 fe ff ff 48 8d bb c0 0c 00 00 be ff ff ff ff e8 da fc 9b 00 85 c0 0f 85 39 fe ff ff 90 <0f> 0b 90 e9 30 fe ff ff 48 b8 00 00 00 00 00 fc ff df 4c 89 fa 48
All code
========
   0:	00 00                	add    %al,(%rax)
   2:	8b 05 77 04 bc 02    	mov    0x2bc0477(%rip),%eax        # 0x2bc047f
   8:	85 c0                	test   %eax,%eax
   a:	0f 84 52 fe ff ff    	je     0xfffffffffffffe62
  10:	48 8d bb c0 0c 00 00 	lea    0xcc0(%rbx),%rdi
  17:	be ff ff ff ff       	mov    $0xffffffff,%esi
  1c:	e8 da fc 9b 00       	call   0x9bfcfb
  21:	85 c0                	test   %eax,%eax
  23:	0f 85 39 fe ff ff    	jne    0xfffffffffffffe62
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	e9 30 fe ff ff       	jmp    0xfffffffffffffe62
  32:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
  39:	fc ff df 
  3c:	4c 89 fa             	mov    %r15,%rdx
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	e9 30 fe ff ff       	jmp    0xfffffffffffffe38
   8:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
   f:	fc ff df 
  12:	4c 89 fa             	mov    %r15,%rdx
  15:	48                   	rex.W
[  476.594307][ T4848] RSP: 0018:ffffc9000a097080 EFLAGS: 00010246
[  476.594689][ T4848] RAX: 0000000000000000 RBX: ffff88800dd72000 RCX: 0000000000000001
[  476.595150][ T4848] RDX: 0000000000000000 RSI: ffffffff93510751 RDI: ffffffff92c58280
[  476.595613][ T4848] RBP: ffffc9000a097168 R08: 0000000000000000 R09: 0000000000000000
[  476.596081][ T4848] R10: ffffc9000a097198 R11: ffffffff93f8d1e0 R12: 1ffff92001412e14
[  476.596534][ T4848] R13: 00000000000005dc R14: ffffc9000a097198 R15: ffff88800dd72f48
[  476.596995][ T4848] FS:  00007fb3688fa800(0000) GS:ffff8880d7399000(0000) knlGS:0000000000000000
[  476.597531][ T4848] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  476.597909][ T4848] CR2: 000000000043d940 CR3: 000000000ecfb006 CR4: 0000000000772ef0
[  476.598379][ T4848] PKRU: 55555554
[  476.598607][ T4848] Call Trace:
[  476.598831][ T4848]  <TASK>
[ 476.598998][ T4848] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 476.599305][ T4848] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 476.599626][ T4848] netif_set_mtu (net/core/dev.c:9652) 
[ 476.599927][ T4848] ? __pfx_netif_set_mtu (net/core/dev.c:9647) 
[ 476.600267][ T4848] dev_set_mtu (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:47 net/core/dev_api.c:249) 
[ 476.600503][ T4848] br_mtu_auto_adjust (net/bridge/br_if.c:525) 
[ 476.600815][ T4848] br_add_if (net/bridge/br_if.c:697) 
[ 476.601067][ T4848] do_set_master (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:41 net/core/rtnetlink.c:2949) 
[ 476.601368][ T4848] ? rtnl_configure_link (net/core/rtnetlink.c:3592) 
[ 476.601683][ T4848] rtnl_newlink_create (net/core/rtnetlink.c:3840) 
[ 476.602003][ T4848] ? __pfx_rtnl_newlink_create (net/core/rtnetlink.c:3791) 
[ 476.602302][ T4848] ? __dev_get_by_name (net/core/dev.c:865) 
[ 476.602603][ T4848] ? rtnl_dev_get (net/core/rtnetlink.c:3404) 
[ 476.602903][ T4848] ? __pfx_rtnl_dev_get (net/core/rtnetlink.c:3404) 
[ 476.603218][ T4848] ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4056) 
[ 476.603519][ T4848] ? reacquire_held_locks (kernel/locking/lockdep.c:5388) 
[ 476.603824][ T4848] __rtnl_newlink (net/core/rtnetlink.c:3942) 
[ 476.604163][ T4848] rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4058) 
[ 476.604475][ T4848] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 476.604789][ T4848] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/rtnetlink.c:6944) 
[ 476.605099][ T4848] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 476.605404][ T4848] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 476.605710][ T4848] rtnetlink_rcv_msg (net/core/rtnetlink.c:6946) 
[ 476.606022][ T4848] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 476.606329][ T4848] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 476.606647][ T4848] netlink_rcv_skb (net/netlink/af_netlink.c:2551) 
[ 476.606961][ T4848] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 476.607269][ T4848] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2528) 
[ 476.607583][ T4848] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/netlink/af_netlink.c:340) 
[ 476.607884][ T4848] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 ./include/net/netns/generic.h:48 net/netlink/af_netlink.c:333) 
[ 476.608216][ T4848] netlink_unicast (net/netlink/af_netlink.c:1321 net/netlink/af_netlink.c:1346) 
[ 476.608525][ T4848] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1331) 
[ 476.608836][ T4848] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 476.609160][ T4848] netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 476.609468][ T4848] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1815) 
[ 476.609771][ T4848] ? __import_iovec (lib/iov_iter.c:1441 lib/iov_iter.c:1456) 
[ 476.610086][ T4848] ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 476.610389][ T4848] ? __pfx_____sys_sendmsg (net/socket.c:2560) 
[ 476.610689][ T4848] ? __pfx_copy_msghdr_from_user (net/socket.c:2540) 
[ 476.611087][ T4848] ___sys_sendmsg (net/socket.c:2670) 
[ 476.611391][ T4848] ? __pfx____sys_sendmsg (net/socket.c:2657) 
[ 476.611699][ T4848] ? __pfx_handle_pte_fault (mm/memory.c:6026) 
[ 476.612021][ T4848] ? reacquire_held_locks (kernel/locking/lockdep.c:5388) 
[ 476.612320][ T4848] ? do_user_addr_fault (arch/x86/mm/fault.c:1327) 
[ 476.612626][ T4848] ? __handle_mm_fault (mm/memory.c:6212) 
[ 476.612932][ T4848] ? __pfx___handle_mm_fault (mm/memory.c:6121) 
[ 476.613238][ T4848] ? lock_vma_under_rcu (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 mm/mmap_lock.c:171) 
[ 476.613560][ T4848] __sys_sendmsg (net/socket.c:2700) 
[ 476.613860][ T4848] ? __pfx___sys_sendmsg (net/socket.c:2685) 
[ 476.614170][ T4848] ? exc_page_fault (./arch/x86/include/asm/irqflags.h:26 ./arch/x86/include/asm/irqflags.h:109 ./arch/x86/include/asm/irqflags.h:151 arch/x86/mm/fault.c:1484 arch/x86/mm/fault.c:1532) 
[ 476.614479][ T4848] ? do_user_addr_fault (./arch/x86/include/asm/atomic.h:93 ./include/linux/atomic/atomic-arch-fallback.h:949 ./include/linux/atomic/atomic-instrumented.h:401 ./include/linux/refcount.h:389 ./include/linux/refcount.h:432 ./include/linux/mmap_lock.h:142 ./include/linux/mmap_lock.h:237 arch/x86/mm/fault.c:1338) 
[ 476.614782][ T4848] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 476.615098][ T4848] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 476.615404][ T4848] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[  476.615777][ T4848] RIP: 0033:0x7fb368ac71e7
[ 476.616105][ T4848] Code: 0e 00 f7 d8 64 89 02 48 c7 c0 ff ff ff ff eb b9 0f 1f 00 f3 0f 1e fa 64 8b 04 25 18 00 00 00 85 c0 75 10 b8 2e 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 51 c3 48 83 ec 28 89 54 24 1c 48 89 74 24 10
All code
========
   0:	0e                   	(bad)
   1:	00 f7                	add    %dh,%bh
   3:	d8 64 89 02          	fsubs  0x2(%rcx,%rcx,4)
   7:	48 c7 c0 ff ff ff ff 	mov    $0xffffffffffffffff,%rax
   e:	eb b9                	jmp    0xffffffffffffffc9
  10:	0f 1f 00             	nopl   (%rax)
  13:	f3 0f 1e fa          	endbr64
  17:	64 8b 04 25 18 00 00 	mov    %fs:0x18,%eax
  1e:	00 
  1f:	85 c0                	test   %eax,%eax
  21:	75 10                	jne    0x33
  23:	b8 2e 00 00 00       	mov    $0x2e,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 00 f0 ff ff    	cmp    $0xfffffffffffff000,%rax		<-- trapping instruction
  30:	77 51                	ja     0x83
  32:	c3                   	ret
  33:	48 83 ec 28          	sub    $0x28,%rsp
  37:	89 54 24 1c          	mov    %edx,0x1c(%rsp)
  3b:	48 89 74 24 10       	mov    %rsi,0x10(%rsp)

Code starting with the faulting instruction
===========================================
   0:	48 3d 00 f0 ff ff    	cmp    $0xfffffffffffff000,%rax
   6:	77 51                	ja     0x59
   8:	c3                   	ret
   9:	48 83 ec 28          	sub    $0x28,%rsp
   d:	89 54 24 1c          	mov    %edx,0x1c(%rsp)
  11:	48 89 74 24 10       	mov    %rsi,0x10(%rsp)
[  476.617188][ T4848] RSP: 002b:00007fff26a1aff8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[  476.617648][ T4848] RAX: ffffffffffffffda RBX: 00007fff26a1b730 RCX: 00007fb368ac71e7
[  476.618107][ T4848] RDX: 0000000000000000 RSI: 00007fff26a1b060 RDI: 0000000000000005
[  476.618559][ T4848] RBP: 0000000000000006 R08: 000000000000006c R09: 0000000000000000
[  476.619021][ T4848] R10: 00007fb368b55ac0 R11: 0000000000000246 R12: 00007fff26a1b768
[  476.619479][ T4848] R13: 00000000686e7a2d R14: 0000000000499600 R15: 00007fff26a1b150
| [  483.502522][ T4913] ------------[ cut here ]------------
| [ 483.502831][ T4913] WARNING: CPU: 0 PID: 4913 at ./include/net/netdev_lock.h:17 netif_set_mtu_ext (./include/net/netdev_lock.h:17 ./include/net/netdev_lock.h:15 ./include/net/netdev_lock.h:25 net/core/dev.c:9610) 
| [  483.503447][ T4913] Modules linked in: sctp act_gact cls_flower sch_ingress vxlan ip6_gre gre [last unloaded: test_bpf]
| [  483.506095][ T4913] Tainted: [W]=WARN
[  483.506327][ T4913] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 483.506709][ T4913] RIP: 0010:netif_set_mtu_ext (./include/net/netdev_lock.h:17 ./include/net/netdev_lock.h:15 ./include/net/netdev_lock.h:25 net/core/dev.c:9610) 
[ 483.507028][ T4913] Code: 00 00 8b 05 77 04 bc 02 85 c0 0f 84 52 fe ff ff 48 8d bb c0 0c 00 00 be ff ff ff ff e8 da fc 9b 00 85 c0 0f 85 39 fe ff ff 90 <0f> 0b 90 e9 30 fe ff ff 48 b8 00 00 00 00 00 fc ff df 4c 89 fa 48
All code
========
   0:	00 00                	add    %al,(%rax)
   2:	8b 05 77 04 bc 02    	mov    0x2bc0477(%rip),%eax        # 0x2bc047f
   8:	85 c0                	test   %eax,%eax
   a:	0f 84 52 fe ff ff    	je     0xfffffffffffffe62
  10:	48 8d bb c0 0c 00 00 	lea    0xcc0(%rbx),%rdi
  17:	be ff ff ff ff       	mov    $0xffffffff,%esi
  1c:	e8 da fc 9b 00       	call   0x9bfcfb
  21:	85 c0                	test   %eax,%eax
  23:	0f 85 39 fe ff ff    	jne    0xfffffffffffffe62
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	e9 30 fe ff ff       	jmp    0xfffffffffffffe62
  32:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
  39:	fc ff df 
  3c:	4c 89 fa             	mov    %r15,%rdx
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	e9 30 fe ff ff       	jmp    0xfffffffffffffe38
   8:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
   f:	fc ff df 
  12:	4c 89 fa             	mov    %r15,%rdx
  15:	48                   	rex.W
[  483.508128][ T4913] RSP: 0018:ffffc9000a367080 EFLAGS: 00010246
[  483.508512][ T4913] RAX: 0000000000000000 RBX: ffff888015a1a000 RCX: 0000000000000001
[  483.508972][ T4913] RDX: 0000000000000000 RSI: ffffffff93510751 RDI: ffffffff92c58280
[  483.509426][ T4913] RBP: ffffc9000a367168 R08: 0000000000000000 R09: 0000000000000000
[  483.509889][ T4913] R10: ffffc9000a367198 R11: ffffffff93f8d1e0 R12: 1ffff9200146ce14
[  483.510344][ T4913] R13: 00000000000005dc R14: ffffc9000a367198 R15: ffff888015a1af48
[  483.510796][ T4913] FS:  00007f4efbfb2800(0000) GS:ffff8880d7399000(0000) knlGS:0000000000000000
[  483.511329][ T4913] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  483.511722][ T4913] CR2: 00007f4efc19dba0 CR3: 0000000017686002 CR4: 0000000000772ef0
[  483.512192][ T4913] PKRU: 55555554
[  483.512421][ T4913] Call Trace:
[  483.512647][ T4913]  <TASK>
[ 483.512826][ T4913] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 483.513140][ T4913] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 483.513454][ T4913] netif_set_mtu (net/core/dev.c:9652) 
[ 483.513759][ T4913] ? __pfx_netif_set_mtu (net/core/dev.c:9647) 
[ 483.514085][ T4913] dev_set_mtu (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:47 net/core/dev_api.c:249) 
[ 483.514314][ T4913] br_mtu_auto_adjust (net/bridge/br_if.c:525) 
[ 483.514621][ T4913] br_add_if (net/bridge/br_if.c:697) 
[ 483.514861][ T4913] do_set_master (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:41 net/core/rtnetlink.c:2949) 
[ 483.515170][ T4913] ? rtnl_configure_link (net/core/rtnetlink.c:3592) 
[ 483.515476][ T4913] rtnl_newlink_create (net/core/rtnetlink.c:3840) 
[ 483.515781][ T4913] ? __pfx_rtnl_newlink_create (net/core/rtnetlink.c:3791) 
[ 483.516101][ T4913] ? __dev_get_by_name (net/core/dev.c:865) 
[ 483.516406][ T4913] ? rtnl_dev_get (net/core/rtnetlink.c:3404) 
[ 483.516707][ T4913] ? __pfx_rtnl_dev_get (net/core/rtnetlink.c:3404) 
[ 483.517022][ T4913] ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4056) 
[ 483.517324][ T4913] ? reacquire_held_locks (kernel/locking/lockdep.c:5388) 
[ 483.517632][ T4913] __rtnl_newlink (net/core/rtnetlink.c:3942) 
[ 483.517958][ T4913] rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4058) 
[ 483.518274][ T4913] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 483.518589][ T4913] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/rtnetlink.c:6944) 
[ 483.518890][ T4913] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 483.519201][ T4913] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 483.519502][ T4913] rtnetlink_rcv_msg (net/core/rtnetlink.c:6946) 
[ 483.519804][ T4913] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 483.520127][ T4913] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 483.520435][ T4913] netlink_rcv_skb (net/netlink/af_netlink.c:2551) 
[ 483.520737][ T4913] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 483.521049][ T4913] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2528) 
[ 483.521364][ T4913] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/netlink/af_netlink.c:340) 
[ 483.521672][ T4913] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 ./include/net/netns/generic.h:48 net/netlink/af_netlink.c:333) 
[ 483.521982][ T4913] netlink_unicast (net/netlink/af_netlink.c:1321 net/netlink/af_netlink.c:1346) 
[ 483.522289][ T4913] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1331) 
[ 483.522587][ T4913] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 483.522900][ T4913] netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 483.523214][ T4913] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1815) 
[ 483.523516][ T4913] ? __import_iovec (lib/iov_iter.c:1441 lib/iov_iter.c:1456) 
[ 483.523835][ T4913] ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 483.524156][ T4913] ? __pfx_____sys_sendmsg (net/socket.c:2560) 
[ 483.524463][ T4913] ? __pfx_copy_msghdr_from_user (net/socket.c:2540) 
[ 483.524849][ T4913] ___sys_sendmsg (net/socket.c:2670) 
[ 483.525165][ T4913] ? __pfx____sys_sendmsg (net/socket.c:2657) 
[ 483.525471][ T4913] ? rcu_read_lock_any_held (kernel/rcu/update.c:386 kernel/rcu/update.c:380) 
[ 483.525783][ T4913] ? rcu_read_lock_any_held (kernel/rcu/update.c:386 kernel/rcu/update.c:380) 
[ 483.526090][ T4913] ? validate_chain (kernel/locking/lockdep.c:3804 kernel/locking/lockdep.c:3824 kernel/locking/lockdep.c:3879) 
[ 483.526400][ T4913] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 483.526710][ T4913] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 483.527024][ T4913] __sys_sendmsg (net/socket.c:2700) 
[ 483.527335][ T4913] ? __pfx___sys_sendmsg (net/socket.c:2685) 
[ 483.527652][ T4913] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 483.527977][ T4913] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 483.528287][ T4913] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[  483.528665][ T4913] RIP: 0033:0x7f4efc17f1e7
[ 483.528981][ T4913] Code: 0e 00 f7 d8 64 89 02 48 c7 c0 ff ff ff ff eb b9 0f 1f 00 f3 0f 1e fa 64 8b 04 25 18 00 00 00 85 c0 75 10 b8 2e 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 51 c3 48 83 ec 28 89 54 24 1c 48 89 74 24 10
All code
========
   0:	0e                   	(bad)
   1:	00 f7                	add    %dh,%bh
   3:	d8 64 89 02          	fsubs  0x2(%rcx,%rcx,4)
   7:	48 c7 c0 ff ff ff ff 	mov    $0xffffffffffffffff,%rax
   e:	eb b9                	jmp    0xffffffffffffffc9
  10:	0f 1f 00             	nopl   (%rax)
  13:	f3 0f 1e fa          	endbr64
  17:	64 8b 04 25 18 00 00 	mov    %fs:0x18,%eax
  1e:	00 
  1f:	85 c0                	test   %eax,%eax
  21:	75 10                	jne    0x33
  23:	b8 2e 00 00 00       	mov    $0x2e,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 00 f0 ff ff    	cmp    $0xfffffffffffff000,%rax		<-- trapping instruction
  30:	77 51                	ja     0x83
  32:	c3                   	ret
  33:	48 83 ec 28          	sub    $0x28,%rsp
  37:	89 54 24 1c          	mov    %edx,0x1c(%rsp)
  3b:	48 89 74 24 10       	mov    %rsi,0x10(%rsp)

Code starting with the faulting instruction
===========================================
   0:	48 3d 00 f0 ff ff    	cmp    $0xfffffffffffff000,%rax
   6:	77 51                	ja     0x59
   8:	c3                   	ret
   9:	48 83 ec 28          	sub    $0x28,%rsp
   d:	89 54 24 1c          	mov    %edx,0x1c(%rsp)
  11:	48 89 74 24 10       	mov    %rsi,0x10(%rsp)
[  483.530072][ T4913] RSP: 002b:00007ffd588af968 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[  483.530530][ T4913] RAX: ffffffffffffffda RBX: 00007ffd588b00a0 RCX: 00007f4efc17f1e7
[  483.530995][ T4913] RDX: 0000000000000000 RSI: 00007ffd588af9d0 RDI: 0000000000000005
[  483.531452][ T4913] RBP: 0000000000000006 R08: 0000000000000078 R09: 0000000000000000
[  483.531913][ T4913] R10: 00007f4efc20dac0 R11: 0000000000000246 R12: 00007ffd588b00d8
[  483.532380][ T4913] R13: 00000000686e7a34 R14: 0000000000499600 R15: 00007ffd588afac0
| [  487.621513][ T4943] ------------[ cut here ]------------
| [ 487.621829][ T4943] WARNING: CPU: 3 PID: 4943 at ./include/net/netdev_lock.h:17 netif_set_mtu_ext (./include/net/netdev_lock.h:17 ./include/net/netdev_lock.h:15 ./include/net/netdev_lock.h:25 net/core/dev.c:9610) 
| [  487.622459][ T4943] Modules linked in: sctp act_gact cls_flower sch_ingress vxlan ip6_gre gre [last unloaded: test_bpf]
| [  487.624679][ T4943] Tainted: [W]=WARN
[  487.624906][ T4943] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 487.625301][ T4943] RIP: 0010:netif_set_mtu_ext (./include/net/netdev_lock.h:17 ./include/net/netdev_lock.h:15 ./include/net/netdev_lock.h:25 net/core/dev.c:9610) 
[ 487.625615][ T4943] Code: 00 00 8b 05 77 04 bc 02 85 c0 0f 84 52 fe ff ff 48 8d bb c0 0c 00 00 be ff ff ff ff e8 da fc 9b 00 85 c0 0f 85 39 fe ff ff 90 <0f> 0b 90 e9 30 fe ff ff 48 b8 00 00 00 00 00 fc ff df 4c 89 fa 48
All code
========
   0:	00 00                	add    %al,(%rax)
   2:	8b 05 77 04 bc 02    	mov    0x2bc0477(%rip),%eax        # 0x2bc047f
   8:	85 c0                	test   %eax,%eax
   a:	0f 84 52 fe ff ff    	je     0xfffffffffffffe62
  10:	48 8d bb c0 0c 00 00 	lea    0xcc0(%rbx),%rdi
  17:	be ff ff ff ff       	mov    $0xffffffff,%esi
  1c:	e8 da fc 9b 00       	call   0x9bfcfb
  21:	85 c0                	test   %eax,%eax
  23:	0f 85 39 fe ff ff    	jne    0xfffffffffffffe62
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	e9 30 fe ff ff       	jmp    0xfffffffffffffe62
  32:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
  39:	fc ff df 
  3c:	4c 89 fa             	mov    %r15,%rdx
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	e9 30 fe ff ff       	jmp    0xfffffffffffffe38
   8:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
   f:	fc ff df 
  12:	4c 89 fa             	mov    %r15,%rdx
  15:	48                   	rex.W
[  487.626709][ T4943] RSP: 0018:ffffc9000a4e7080 EFLAGS: 00010246
[  487.627103][ T4943] RAX: 0000000000000000 RBX: ffff8880173ca000 RCX: 0000000000000001
[  487.627559][ T4943] RDX: 0000000000000000 RSI: ffffffff93510751 RDI: ffffffff92c58280
[  487.628018][ T4943] RBP: ffffc9000a4e7168 R08: 0000000000000000 R09: 0000000000000000
[  487.628469][ T4943] R10: ffffc9000a4e7198 R11: ffffffff93f8d1e0 R12: 1ffff9200149ce14
[  487.628916][ T4943] R13: 00000000000005dc R14: ffffc9000a4e7198 R15: ffff8880173caf48
[  487.629378][ T4943] FS:  00007fb5e3a82800(0000) GS:ffff8880d7519000(0000) knlGS:0000000000000000
[  487.629901][ T4943] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  487.630296][ T4943] CR2: 00007fb5e3c6dba0 CR3: 000000001767a001 CR4: 0000000000772ef0
[  487.630754][ T4943] PKRU: 55555554
[  487.630989][ T4943] Call Trace:
[  487.631216][ T4943]  <TASK>
[ 487.631376][ T4943] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 487.631688][ T4943] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 487.632023][ T4943] netif_set_mtu (net/core/dev.c:9652) 
[ 487.632327][ T4943] ? __pfx_netif_set_mtu (net/core/dev.c:9647) 
[ 487.632644][ T4943] dev_set_mtu (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:47 net/core/dev_api.c:249) 
[ 487.632875][ T4943] br_mtu_auto_adjust (net/bridge/br_if.c:525) 
[ 487.633187][ T4943] br_add_if (net/bridge/br_if.c:697) 
[ 487.633428][ T4943] do_set_master (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:41 net/core/rtnetlink.c:2949) 
[ 487.633731][ T4943] ? rtnl_configure_link (net/core/rtnetlink.c:3592) 
[ 487.634050][ T4943] rtnl_newlink_create (net/core/rtnetlink.c:3840) 
[ 487.634364][ T4943] ? __pfx_rtnl_newlink_create (net/core/rtnetlink.c:3791) 
[ 487.634662][ T4943] ? __dev_get_by_name (net/core/dev.c:865) 
[ 487.634990][ T4943] ? rtnl_dev_get (net/core/rtnetlink.c:3404) 
[ 487.635294][ T4943] ? __pfx_rtnl_dev_get (net/core/rtnetlink.c:3404) 
[ 487.635598][ T4943] ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4056) 
[ 487.635900][ T4943] ? reacquire_held_locks (kernel/locking/lockdep.c:5388) 
[ 487.636215][ T4943] __rtnl_newlink (net/core/rtnetlink.c:3942) 
[ 487.636529][ T4943] rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4058) 
[ 487.636834][ T4943] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 487.637155][ T4943] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/rtnetlink.c:6944) 
[ 487.637455][ T4943] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 487.637762][ T4943] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 487.638080][ T4943] rtnetlink_rcv_msg (net/core/rtnetlink.c:6946) 
[ 487.638400][ T4943] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 487.638704][ T4943] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 487.639020][ T4943] netlink_rcv_skb (net/netlink/af_netlink.c:2551) 
[ 487.639320][ T4943] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 487.639622][ T4943] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2528) 
[ 487.639933][ T4943] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/netlink/af_netlink.c:340) 
[ 487.640243][ T4943] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 ./include/net/netns/generic.h:48 net/netlink/af_netlink.c:333) 
[ 487.640553][ T4943] netlink_unicast (net/netlink/af_netlink.c:1321 net/netlink/af_netlink.c:1346) 
[ 487.640861][ T4943] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1331) 
[ 487.641167][ T4943] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 487.641474][ T4943] netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 487.641792][ T4943] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1815) 
[ 487.642110][ T4943] ? __import_iovec (lib/iov_iter.c:1441 lib/iov_iter.c:1456) 
[ 487.642428][ T4943] ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 487.642735][ T4943] ? __pfx_____sys_sendmsg (net/socket.c:2560) 
[ 487.643044][ T4943] ? __pfx_copy_msghdr_from_user (net/socket.c:2540) 
[ 487.643430][ T4943] ___sys_sendmsg (net/socket.c:2670) 
[ 487.643734][ T4943] ? __pfx____sys_sendmsg (net/socket.c:2657) 
[ 487.644047][ T4943] ? rcu_read_lock_any_held (kernel/rcu/update.c:386 kernel/rcu/update.c:380) 
[ 487.644359][ T4943] ? rcu_read_lock_any_held (kernel/rcu/update.c:386 kernel/rcu/update.c:380) 
[ 487.644656][ T4943] ? validate_chain (kernel/locking/lockdep.c:3804 kernel/locking/lockdep.c:3824 kernel/locking/lockdep.c:3879) 
[ 487.644976][ T4943] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 487.645287][ T4943] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 487.645590][ T4943] __sys_sendmsg (net/socket.c:2700) 
[ 487.645893][ T4943] ? __pfx___sys_sendmsg (net/socket.c:2685) 
[ 487.646220][ T4943] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 487.646532][ T4943] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 487.646843][ T4943] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[  487.647232][ T4943] RIP: 0033:0x7fb5e3c4f1e7
[ 487.647542][ T4943] Code: 0e 00 f7 d8 64 89 02 48 c7 c0 ff ff ff ff eb b9 0f 1f 00 f3 0f 1e fa 64 8b 04 25 18 00 00 00 85 c0 75 10 b8 2e 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 51 c3 48 83 ec 28 89 54 24 1c 48 89 74 24 10
All code
========
   0:	0e                   	(bad)
   1:	00 f7                	add    %dh,%bh
   3:	d8 64 89 02          	fsubs  0x2(%rcx,%rcx,4)
   7:	48 c7 c0 ff ff ff ff 	mov    $0xffffffffffffffff,%rax
   e:	eb b9                	jmp    0xffffffffffffffc9
  10:	0f 1f 00             	nopl   (%rax)
  13:	f3 0f 1e fa          	endbr64
  17:	64 8b 04 25 18 00 00 	mov    %fs:0x18,%eax
  1e:	00 
  1f:	85 c0                	test   %eax,%eax
  21:	75 10                	jne    0x33
  23:	b8 2e 00 00 00       	mov    $0x2e,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 00 f0 ff ff    	cmp    $0xfffffffffffff000,%rax		<-- trapping instruction
  30:	77 51                	ja     0x83
  32:	c3                   	ret
  33:	48 83 ec 28          	sub    $0x28,%rsp
  37:	89 54 24 1c          	mov    %edx,0x1c(%rsp)
  3b:	48 89 74 24 10       	mov    %rsi,0x10(%rsp)

Code starting with the faulting instruction
===========================================
   0:	48 3d 00 f0 ff ff    	cmp    $0xfffffffffffff000,%rax
   6:	77 51                	ja     0x59
   8:	c3                   	ret
   9:	48 83 ec 28          	sub    $0x28,%rsp
   d:	89 54 24 1c          	mov    %edx,0x1c(%rsp)
  11:	48 89 74 24 10       	mov    %rsi,0x10(%rsp)
[  487.648622][ T4943] RSP: 002b:00007ffeaeb8e978 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[  487.649085][ T4943] RAX: ffffffffffffffda RBX: 00007ffeaeb8f0b0 RCX: 00007fb5e3c4f1e7
[  487.649540][ T4943] RDX: 0000000000000000 RSI: 00007ffeaeb8e9e0 RDI: 0000000000000005
[  487.650010][ T4943] RBP: 0000000000000006 R08: 0000000000000078 R09: 0000000000000000
[  487.650464][ T4943] R10: 00007fb5e3cddac0 R11: 0000000000000246 R12: 00007ffeaeb8f0e8
[  487.650912][ T4943] R13: 00000000686e7a38 R14: 0000000000499600 R15: 00007ffeaeb8ead0
| [  509.789095][ T5181] ------------[ cut here ]------------
| [ 509.789442][ T5181] WARNING: CPU: 2 PID: 5181 at ./include/net/netdev_lock.h:17 netif_set_mtu_ext (./include/net/netdev_lock.h:17 ./include/net/netdev_lock.h:15 ./include/net/netdev_lock.h:25 net/core/dev.c:9610) 
| [  509.790093][ T5181] Modules linked in: sctp act_gact cls_flower sch_ingress vxlan ip6_gre gre [last unloaded: test_bpf]
| [  509.791438][ T5181] Tainted: [W]=WARN
[  509.791708][ T5181] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 509.792139][ T5181] RIP: 0010:netif_set_mtu_ext (./include/net/netdev_lock.h:17 ./include/net/netdev_lock.h:15 ./include/net/netdev_lock.h:25 net/core/dev.c:9610) 
[ 509.792465][ T5181] Code: 00 00 8b 05 77 04 bc 02 85 c0 0f 84 52 fe ff ff 48 8d bb c0 0c 00 00 be ff ff ff ff e8 da fc 9b 00 85 c0 0f 85 39 fe ff ff 90 <0f> 0b 90 e9 30 fe ff ff 48 b8 00 00 00 00 00 fc ff df 4c 89 fa 48
All code
========
   0:	00 00                	add    %al,(%rax)
   2:	8b 05 77 04 bc 02    	mov    0x2bc0477(%rip),%eax        # 0x2bc047f
   8:	85 c0                	test   %eax,%eax
   a:	0f 84 52 fe ff ff    	je     0xfffffffffffffe62
  10:	48 8d bb c0 0c 00 00 	lea    0xcc0(%rbx),%rdi
  17:	be ff ff ff ff       	mov    $0xffffffff,%esi
  1c:	e8 da fc 9b 00       	call   0x9bfcfb
  21:	85 c0                	test   %eax,%eax
  23:	0f 85 39 fe ff ff    	jne    0xfffffffffffffe62
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	e9 30 fe ff ff       	jmp    0xfffffffffffffe62
  32:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
  39:	fc ff df 
  3c:	4c 89 fa             	mov    %r15,%rdx
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	e9 30 fe ff ff       	jmp    0xfffffffffffffe38
   8:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
   f:	fc ff df 
  12:	4c 89 fa             	mov    %r15,%rdx
  15:	48                   	rex.W
[  509.793602][ T5181] RSP: 0018:ffffc9000aba7080 EFLAGS: 00010246
[  509.794031][ T5181] RAX: 0000000000000000 RBX: ffff88800b1b2000 RCX: 0000000000000001
[  509.794526][ T5181] RDX: 0000000000000000 RSI: ffffffff93510751 RDI: ffffffff92c58280
[  509.795159][ T5181] RBP: ffffc9000aba7168 R08: 0000000000000000 R09: 0000000000000000
[  509.795777][ T5181] R10: ffffc9000aba7198 R11: ffffffff93f8d1e0 R12: 1ffff92001574e14
[  509.796442][ T5181] R13: 00000000000005dc R14: ffffc9000aba7198 R15: ffff88800b1b2f48
[  509.797063][ T5181] FS:  00007f673ea09800(0000) GS:ffff8880d7499000(0000) knlGS:0000000000000000
[  509.797737][ T5181] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  509.798289][ T5181] CR2: 000000000043d940 CR3: 000000000a222005 CR4: 0000000000772ef0
[  509.798769][ T5181] PKRU: 55555554
[  509.799020][ T5181] Call Trace:
[  509.799267][ T5181]  <TASK>
[ 509.799436][ T5181] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 509.799767][ T5181] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 509.800115][ T5181] netif_set_mtu (net/core/dev.c:9652) 
[ 509.800435][ T5181] ? __pfx_netif_set_mtu (net/core/dev.c:9647) 
[ 509.800767][ T5181] dev_set_mtu (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:47 net/core/dev_api.c:249) 
[ 509.801034][ T5181] br_mtu_auto_adjust (net/bridge/br_if.c:525) 
[ 509.801363][ T5181] br_add_if (net/bridge/br_if.c:697) 
[ 509.801633][ T5181] do_set_master (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:41 net/core/rtnetlink.c:2949) 
[ 509.801978][ T5181] ? rtnl_configure_link (net/core/rtnetlink.c:3592) 
[ 509.802301][ T5181] rtnl_newlink_create (net/core/rtnetlink.c:3840) 
[ 509.802626][ T5181] ? __pfx_rtnl_newlink_create (net/core/rtnetlink.c:3791) 
[ 509.802960][ T5181] ? __dev_get_by_name (net/core/dev.c:865) 
[ 509.803278][ T5181] ? rtnl_dev_get (net/core/rtnetlink.c:3404) 
[ 509.803595][ T5181] ? __pfx_rtnl_dev_get (net/core/rtnetlink.c:3404) 
[ 509.803929][ T5181] ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4056) 
[ 509.804258][ T5181] ? reacquire_held_locks (kernel/locking/lockdep.c:5388) 
[ 509.804586][ T5181] __rtnl_newlink (net/core/rtnetlink.c:3942) 
[ 509.804914][ T5181] rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4058) 
[ 509.805257][ T5181] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 509.805599][ T5181] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/rtnetlink.c:6944) 
[ 509.805925][ T5181] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 509.806274][ T5181] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 509.806597][ T5181] rtnetlink_rcv_msg (net/core/rtnetlink.c:6946) 
[ 509.806917][ T5181] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 509.807252][ T5181] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 509.807583][ T5181] netlink_rcv_skb (net/netlink/af_netlink.c:2551) 
[ 509.807912][ T5181] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 509.808246][ T5181] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2528) 
[ 509.808581][ T5181] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/netlink/af_netlink.c:340) 
[ 509.808898][ T5181] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 ./include/net/netns/generic.h:48 net/netlink/af_netlink.c:333) 
[ 509.809225][ T5181] netlink_unicast (net/netlink/af_netlink.c:1321 net/netlink/af_netlink.c:1346) 
[ 509.809552][ T5181] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1331) 
[ 509.809870][ T5181] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 509.810210][ T5181] netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 509.810529][ T5181] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1815) 
[ 509.810859][ T5181] ? __import_iovec (lib/iov_iter.c:1441 lib/iov_iter.c:1456) 
[ 509.811197][ T5181] ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 509.811527][ T5181] ? __pfx_____sys_sendmsg (net/socket.c:2560) 
[ 509.811854][ T5181] ? __pfx_copy_msghdr_from_user (net/socket.c:2540) 
[ 509.812263][ T5181] ___sys_sendmsg (net/socket.c:2670) 
[ 509.812580][ T5181] ? __pfx____sys_sendmsg (net/socket.c:2657) 
[ 509.812901][ T5181] ? __pfx_handle_pte_fault (mm/memory.c:6026) 
[ 509.813226][ T5181] ? reacquire_held_locks (kernel/locking/lockdep.c:5388) 
[ 509.813556][ T5181] ? do_user_addr_fault (arch/x86/mm/fault.c:1327) 
[ 509.813874][ T5181] ? __handle_mm_fault (mm/memory.c:6212) 
[ 509.814209][ T5181] ? __pfx___handle_mm_fault (mm/memory.c:6121) 
[ 509.814534][ T5181] ? lock_vma_under_rcu (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 mm/mmap_lock.c:171) 
[ 509.814871][ T5181] __sys_sendmsg (net/socket.c:2700) 
[ 509.815197][ T5181] ? __pfx___sys_sendmsg (net/socket.c:2685) 
[ 509.815510][ T5181] ? exc_page_fault (./arch/x86/include/asm/irqflags.h:26 ./arch/x86/include/asm/irqflags.h:109 ./arch/x86/include/asm/irqflags.h:151 arch/x86/mm/fault.c:1484 arch/x86/mm/fault.c:1532) 
[ 509.815845][ T5181] ? do_user_addr_fault (./arch/x86/include/asm/atomic.h:93 ./include/linux/atomic/atomic-arch-fallback.h:949 ./include/linux/atomic/atomic-instrumented.h:401 ./include/linux/refcount.h:389 ./include/linux/refcount.h:432 ./include/linux/mmap_lock.h:142 ./include/linux/mmap_lock.h:237 arch/x86/mm/fault.c:1338) 
[ 509.816180][ T5181] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 509.816497][ T5181] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 509.816823][ T5181] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[  509.817231][ T5181] RIP: 0033:0x7f673ebd61e7
[ 509.817565][ T5181] Code: 0e 00 f7 d8 64 89 02 48 c7 c0 ff ff ff ff eb b9 0f 1f 00 f3 0f 1e fa 64 8b 04 25 18 00 00 00 85 c0 75 10 b8 2e 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 51 c3 48 83 ec 28 89 54 24 1c 48 89 74 24 10
All code
========
   0:	0e                   	(bad)
   1:	00 f7                	add    %dh,%bh
   3:	d8 64 89 02          	fsubs  0x2(%rcx,%rcx,4)
   7:	48 c7 c0 ff ff ff ff 	mov    $0xffffffffffffffff,%rax
   e:	eb b9                	jmp    0xffffffffffffffc9
  10:	0f 1f 00             	nopl   (%rax)
  13:	f3 0f 1e fa          	endbr64
  17:	64 8b 04 25 18 00 00 	mov    %fs:0x18,%eax
  1e:	00 
  1f:	85 c0                	test   %eax,%eax
  21:	75 10                	jne    0x33
  23:	b8 2e 00 00 00       	mov    $0x2e,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 00 f0 ff ff    	cmp    $0xfffffffffffff000,%rax		<-- trapping instruction
  30:	77 51                	ja     0x83
  32:	c3                   	ret
  33:	48 83 ec 28          	sub    $0x28,%rsp
  37:	89 54 24 1c          	mov    %edx,0x1c(%rsp)
  3b:	48 89 74 24 10       	mov    %rsi,0x10(%rsp)

Code starting with the faulting instruction
===========================================
   0:	48 3d 00 f0 ff ff    	cmp    $0xfffffffffffff000,%rax
   6:	77 51                	ja     0x59
   8:	c3                   	ret
   9:	48 83 ec 28          	sub    $0x28,%rsp
   d:	89 54 24 1c          	mov    %edx,0x1c(%rsp)
  11:	48 89 74 24 10       	mov    %rsi,0x10(%rsp)
[  509.818699][ T5181] RSP: 002b:00007ffdf9e1dc18 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[  509.819195][ T5181] RAX: ffffffffffffffda RBX: 00007ffdf9e1e350 RCX: 00007f673ebd61e7
[  509.819668][ T5181] RDX: 0000000000000000 RSI: 00007ffdf9e1dc80 RDI: 0000000000000005
[  509.820151][ T5181] RBP: 0000000000000006 R08: 000000000000006c R09: 0000000000000000
[  509.820634][ T5181] R10: 00007f673ec64ac0 R11: 0000000000000246 R12: 00007ffdf9e1e388
[  509.821135][ T5181] R13: 00000000686e7a4e R14: 0000000000499600 R15: 00007ffdf9e1dd70
| [  513.749229][ T5211] ------------[ cut here ]------------
| [ 513.749590][ T5211] WARNING: CPU: 2 PID: 5211 at ./include/net/netdev_lock.h:17 netif_set_mtu_ext (./include/net/netdev_lock.h:17 ./include/net/netdev_lock.h:15 ./include/net/netdev_lock.h:25 net/core/dev.c:9610) 
| [  513.750231][ T5211] Modules linked in: sctp act_gact cls_flower sch_ingress vxlan ip6_gre gre [last unloaded: test_bpf]
| [  513.751636][ T5211] Tainted: [W]=WARN
[  513.751886][ T5211] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 513.752286][ T5211] RIP: 0010:netif_set_mtu_ext (./include/net/netdev_lock.h:17 ./include/net/netdev_lock.h:15 ./include/net/netdev_lock.h:25 net/core/dev.c:9610) 
[ 513.752613][ T5211] Code: 00 00 8b 05 77 04 bc 02 85 c0 0f 84 52 fe ff ff 48 8d bb c0 0c 00 00 be ff ff ff ff e8 da fc 9b 00 85 c0 0f 85 39 fe ff ff 90 <0f> 0b 90 e9 30 fe ff ff 48 b8 00 00 00 00 00 fc ff df 4c 89 fa 48
All code
========
   0:	00 00                	add    %al,(%rax)
   2:	8b 05 77 04 bc 02    	mov    0x2bc0477(%rip),%eax        # 0x2bc047f
   8:	85 c0                	test   %eax,%eax
   a:	0f 84 52 fe ff ff    	je     0xfffffffffffffe62
  10:	48 8d bb c0 0c 00 00 	lea    0xcc0(%rbx),%rdi
  17:	be ff ff ff ff       	mov    $0xffffffff,%esi
  1c:	e8 da fc 9b 00       	call   0x9bfcfb
  21:	85 c0                	test   %eax,%eax
  23:	0f 85 39 fe ff ff    	jne    0xfffffffffffffe62
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	e9 30 fe ff ff       	jmp    0xfffffffffffffe62
  32:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
  39:	fc ff df 
  3c:	4c 89 fa             	mov    %r15,%rdx
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	e9 30 fe ff ff       	jmp    0xfffffffffffffe38
   8:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
   f:	fc ff df 
  12:	4c 89 fa             	mov    %r15,%rdx
  15:	48                   	rex.W
[  513.753750][ T5211] RSP: 0018:ffffc9000ac87080 EFLAGS: 00010246
[  513.754165][ T5211] RAX: 0000000000000000 RBX: ffff888015a1a000 RCX: 0000000000000001
[  513.754669][ T5211] RDX: 0000000000000000 RSI: ffffffff93510751 RDI: ffffffff92c58280
[  513.755181][ T5211] RBP: ffffc9000ac87168 R08: 0000000000000000 R09: 0000000000000000
[  513.755656][ T5211] R10: ffffc9000ac87198 R11: ffffffff93f8d1e0 R12: 1ffff92001590e14
[  513.756134][ T5211] R13: 00000000000005dc R14: ffffc9000ac87198 R15: ffff888015a1af48
[  513.756649][ T5211] FS:  00007fbd21bda800(0000) GS:ffff8880d7499000(0000) knlGS:0000000000000000
[  513.757231][ T5211] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  513.757626][ T5211] CR2: 000000000043d940 CR3: 000000000929e003 CR4: 0000000000772ef0
[  513.758131][ T5211] PKRU: 55555554
[  513.758370][ T5211] Call Trace:
[  513.758607][ T5211]  <TASK>
[ 513.758801][ T5211] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 513.759148][ T5211] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 513.759479][ T5211] netif_set_mtu (net/core/dev.c:9652) 
[ 513.759834][ T5211] ? __pfx_netif_set_mtu (net/core/dev.c:9647) 
[ 513.760190][ T5211] dev_set_mtu (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:47 net/core/dev_api.c:249) 
[ 513.760440][ T5211] br_mtu_auto_adjust (net/bridge/br_if.c:525) 
[ 513.760779][ T5211] br_add_if (net/bridge/br_if.c:697) 
[ 513.761058][ T5211] do_set_master (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:41 net/core/rtnetlink.c:2949) 
[ 513.761384][ T5211] ? rtnl_configure_link (net/core/rtnetlink.c:3592) 
[ 513.761725][ T5211] rtnl_newlink_create (net/core/rtnetlink.c:3840) 
[ 513.762066][ T5211] ? __pfx_rtnl_newlink_create (net/core/rtnetlink.c:3791) 
[ 513.762377][ T5211] ? __dev_get_by_name (net/core/dev.c:865) 
[ 513.762695][ T5211] ? rtnl_dev_get (net/core/rtnetlink.c:3404) 
[ 513.763049][ T5211] ? __pfx_rtnl_dev_get (net/core/rtnetlink.c:3404) 
[ 513.763380][ T5211] ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4056) 
[ 513.763712][ T5211] ? reacquire_held_locks (kernel/locking/lockdep.c:5388) 
[ 513.764044][ T5211] __rtnl_newlink (net/core/rtnetlink.c:3942) 
[ 513.764396][ T5211] rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4058) 
[ 513.764749][ T5211] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 513.765096][ T5211] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/rtnetlink.c:6944) 
[ 513.765435][ T5211] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 513.765756][ T5211] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 513.766084][ T5211] rtnetlink_rcv_msg (net/core/rtnetlink.c:6946) 
[ 513.766402][ T5211] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 513.766750][ T5211] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 513.767094][ T5211] netlink_rcv_skb (net/netlink/af_netlink.c:2551) 
[ 513.767439][ T5211] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 513.767758][ T5211] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2528) 
[ 513.768129][ T5211] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/netlink/af_netlink.c:340) 
[ 513.768445][ T5211] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 ./include/net/netns/generic.h:48 net/netlink/af_netlink.c:333) 
[ 513.768762][ T5211] netlink_unicast (net/netlink/af_netlink.c:1321 net/netlink/af_netlink.c:1346) 
[ 513.769128][ T5211] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1331) 
[ 513.769476][ T5211] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 513.769811][ T5211] netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 513.770147][ T5211] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1815) 
[ 513.770463][ T5211] ? __import_iovec (lib/iov_iter.c:1441 lib/iov_iter.c:1456) 
[ 513.770803][ T5211] ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 513.771160][ T5211] ? __pfx_____sys_sendmsg (net/socket.c:2560) 
[ 513.771473][ T5211] ? __pfx_copy_msghdr_from_user (net/socket.c:2540) 
[ 513.771891][ T5211] ___sys_sendmsg (net/socket.c:2670) 
[ 513.772252][ T5211] ? __pfx____sys_sendmsg (net/socket.c:2657) 
[ 513.772570][ T5211] ? __pfx_handle_pte_fault (mm/memory.c:6026) 
[ 513.772921][ T5211] ? reacquire_held_locks (kernel/locking/lockdep.c:5388) 
[ 513.773271][ T5211] ? do_user_addr_fault (arch/x86/mm/fault.c:1327) 
[ 513.773599][ T5211] ? __handle_mm_fault (mm/memory.c:6212) 
[ 513.773957][ T5211] ? __pfx___handle_mm_fault (mm/memory.c:6121) 
[ 513.774298][ T5211] ? lock_vma_under_rcu (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 mm/mmap_lock.c:171) 
[ 513.774653][ T5211] __sys_sendmsg (net/socket.c:2700) 
[ 513.774987][ T5211] ? __pfx___sys_sendmsg (net/socket.c:2685) 
[ 513.775300][ T5211] ? exc_page_fault (./arch/x86/include/asm/irqflags.h:26 ./arch/x86/include/asm/irqflags.h:109 ./arch/x86/include/asm/irqflags.h:151 arch/x86/mm/fault.c:1484 arch/x86/mm/fault.c:1532) 
[ 513.775636][ T5211] ? do_user_addr_fault (./arch/x86/include/asm/atomic.h:93 ./include/linux/atomic/atomic-arch-fallback.h:949 ./include/linux/atomic/atomic-instrumented.h:401 ./include/linux/refcount.h:389 ./include/linux/refcount.h:432 ./include/linux/mmap_lock.h:142 ./include/linux/mmap_lock.h:237 arch/x86/mm/fault.c:1338) 
[ 513.775984][ T5211] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 513.776306][ T5211] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 513.776627][ T5211] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[  513.777029][ T5211] RIP: 0033:0x7fbd21da71e7
[ 513.777387][ T5211] Code: 0e 00 f7 d8 64 89 02 48 c7 c0 ff ff ff ff eb b9 0f 1f 00 f3 0f 1e fa 64 8b 04 25 18 00 00 00 85 c0 75 10 b8 2e 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 51 c3 48 83 ec 28 89 54 24 1c 48 89 74 24 10
All code
========
   0:	0e                   	(bad)
   1:	00 f7                	add    %dh,%bh
   3:	d8 64 89 02          	fsubs  0x2(%rcx,%rcx,4)
   7:	48 c7 c0 ff ff ff ff 	mov    $0xffffffffffffffff,%rax
   e:	eb b9                	jmp    0xffffffffffffffc9
  10:	0f 1f 00             	nopl   (%rax)
  13:	f3 0f 1e fa          	endbr64
  17:	64 8b 04 25 18 00 00 	mov    %fs:0x18,%eax
  1e:	00 
  1f:	85 c0                	test   %eax,%eax
  21:	75 10                	jne    0x33
  23:	b8 2e 00 00 00       	mov    $0x2e,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 00 f0 ff ff    	cmp    $0xfffffffffffff000,%rax		<-- trapping instruction
  30:	77 51                	ja     0x83
  32:	c3                   	ret
  33:	48 83 ec 28          	sub    $0x28,%rsp
  37:	89 54 24 1c          	mov    %edx,0x1c(%rsp)
  3b:	48 89 74 24 10       	mov    %rsi,0x10(%rsp)

Code starting with the faulting instruction
===========================================
   0:	48 3d 00 f0 ff ff    	cmp    $0xfffffffffffff000,%rax
   6:	77 51                	ja     0x59
   8:	c3                   	ret
   9:	48 83 ec 28          	sub    $0x28,%rsp
   d:	89 54 24 1c          	mov    %edx,0x1c(%rsp)
  11:	48 89 74 24 10       	mov    %rsi,0x10(%rsp)
[  513.778562][ T5211] RSP: 002b:00007fff3bc0b868 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[  513.779067][ T5211] RAX: ffffffffffffffda RBX: 00007fff3bc0bfa0 RCX: 00007fbd21da71e7
[  513.779532][ T5211] RDX: 0000000000000000 RSI: 00007fff3bc0b8d0 RDI: 0000000000000005
[  513.780012][ T5211] RBP: 0000000000000006 R08: 000000000000006c R09: 0000000000000000
[  513.780478][ T5211] R10: 00007fbd21e35ac0 R11: 0000000000000246 R12: 00007fff3bc0bfd8
[  513.780958][ T5211] R13: 00000000686e7a52 R14: 0000000000499600 R15: 00007fff3bc0b9c0
| [  520.542502][ T5277] ------------[ cut here ]------------
| [ 520.542812][ T5277] WARNING: CPU: 0 PID: 5277 at ./include/net/netdev_lock.h:17 netif_set_mtu_ext (./include/net/netdev_lock.h:17 ./include/net/netdev_lock.h:15 ./include/net/netdev_lock.h:25 net/core/dev.c:9610) 
| [  520.543423][ T5277] Modules linked in: sctp act_gact cls_flower sch_ingress vxlan ip6_gre gre [last unloaded: test_bpf]
| [  520.544656][ T5277] Tainted: [W]=WARN
[  520.544883][ T5277] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 520.545274][ T5277] RIP: 0010:netif_set_mtu_ext (./include/net/netdev_lock.h:17 ./include/net/netdev_lock.h:15 ./include/net/netdev_lock.h:25 net/core/dev.c:9610) 
[ 520.545586][ T5277] Code: 00 00 8b 05 77 04 bc 02 85 c0 0f 84 52 fe ff ff 48 8d bb c0 0c 00 00 be ff ff ff ff e8 da fc 9b 00 85 c0 0f 85 39 fe ff ff 90 <0f> 0b 90 e9 30 fe ff ff 48 b8 00 00 00 00 00 fc ff df 4c 89 fa 48
All code
========
   0:	00 00                	add    %al,(%rax)
   2:	8b 05 77 04 bc 02    	mov    0x2bc0477(%rip),%eax        # 0x2bc047f
   8:	85 c0                	test   %eax,%eax
   a:	0f 84 52 fe ff ff    	je     0xfffffffffffffe62
  10:	48 8d bb c0 0c 00 00 	lea    0xcc0(%rbx),%rdi
  17:	be ff ff ff ff       	mov    $0xffffffff,%esi
  1c:	e8 da fc 9b 00       	call   0x9bfcfb
  21:	85 c0                	test   %eax,%eax
  23:	0f 85 39 fe ff ff    	jne    0xfffffffffffffe62
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	e9 30 fe ff ff       	jmp    0xfffffffffffffe62
  32:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
  39:	fc ff df 
  3c:	4c 89 fa             	mov    %r15,%rdx
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	e9 30 fe ff ff       	jmp    0xfffffffffffffe38
   8:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
   f:	fc ff df 
  12:	4c 89 fa             	mov    %r15,%rdx
  15:	48                   	rex.W
[  520.546665][ T5277] RSP: 0018:ffffc9000af47080 EFLAGS: 00010246
[  520.547050][ T5277] RAX: 0000000000000000 RBX: ffff88800de2a000 RCX: 0000000000000001
[  520.547506][ T5277] RDX: 0000000000000000 RSI: ffffffff93510751 RDI: ffffffff92c58280
[  520.547967][ T5277] RBP: ffffc9000af47168 R08: 0000000000000000 R09: 0000000000000000
[  520.548419][ T5277] R10: ffffc9000af47198 R11: ffffffff93f8d1e0 R12: 1ffff920015e8e14
[  520.548870][ T5277] R13: 00000000000005dc R14: ffffc9000af47198 R15: ffff88800de2af48
[  520.549333][ T5277] FS:  00007f6f407d7800(0000) GS:ffff8880d7399000(0000) knlGS:0000000000000000
[  520.549861][ T5277] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  520.550249][ T5277] CR2: 00007f6f409c2ba0 CR3: 000000000de51002 CR4: 0000000000772ef0
[  520.550709][ T5277] PKRU: 55555554
[  520.550937][ T5277] Call Trace:
[  520.551173][ T5277]  <TASK>
[ 520.551336][ T5277] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 520.551655][ T5277] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 520.551983][ T5277] netif_set_mtu (net/core/dev.c:9652) 
[ 520.552285][ T5277] ? __pfx_netif_set_mtu (net/core/dev.c:9647) 
[ 520.552604][ T5277] dev_set_mtu (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:47 net/core/dev_api.c:249) 
[ 520.552833][ T5277] br_mtu_auto_adjust (net/bridge/br_if.c:525) 
[ 520.553147][ T5277] br_add_if (net/bridge/br_if.c:697) 
[ 520.553386][ T5277] do_set_master (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:41 net/core/rtnetlink.c:2949) 
[ 520.553694][ T5277] ? rtnl_configure_link (net/core/rtnetlink.c:3592) 
[ 520.554007][ T5277] rtnl_newlink_create (net/core/rtnetlink.c:3840) 
[ 520.554312][ T5277] ? __pfx_rtnl_newlink_create (net/core/rtnetlink.c:3791) 
[ 520.554614][ T5277] ? __dev_get_by_name (net/core/dev.c:865) 
[ 520.554917][ T5277] ? rtnl_dev_get (net/core/rtnetlink.c:3404) 
[ 520.555227][ T5277] ? __pfx_rtnl_dev_get (net/core/rtnetlink.c:3404) 
[ 520.555533][ T5277] ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4056) 
[ 520.555838][ T5277] ? reacquire_held_locks (kernel/locking/lockdep.c:5388) 
[ 520.556155][ T5277] __rtnl_newlink (net/core/rtnetlink.c:3942) 
[ 520.556469][ T5277] rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4058) 
[ 520.556777][ T5277] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 520.557099][ T5277] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/rtnetlink.c:6944) 
[ 520.557400][ T5277] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 520.557702][ T5277] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 520.558013][ T5277] rtnetlink_rcv_msg (net/core/rtnetlink.c:6946) 
[ 520.558323][ T5277] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 520.558628][ T5277] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 520.558933][ T5277] netlink_rcv_skb (net/netlink/af_netlink.c:2551) 
[ 520.559247][ T5277] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 520.559550][ T5277] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2528) 
[ 520.559863][ T5277] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/netlink/af_netlink.c:340) 
[ 520.560169][ T5277] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 ./include/net/netns/generic.h:48 net/netlink/af_netlink.c:333) 
[ 520.560480][ T5277] netlink_unicast (net/netlink/af_netlink.c:1321 net/netlink/af_netlink.c:1346) 
[ 520.560785][ T5277] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1331) 
[ 520.561094][ T5277] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 520.561401][ T5277] netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 520.561722][ T5277] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1815) 
[ 520.562034][ T5277] ? __import_iovec (lib/iov_iter.c:1441 lib/iov_iter.c:1456) 
[ 520.562343][ T5277] ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 520.562653][ T5277] ? __pfx_____sys_sendmsg (net/socket.c:2560) 
[ 520.562963][ T5277] ? __pfx_copy_msghdr_from_user (net/socket.c:2540) 
[ 520.563350][ T5277] ___sys_sendmsg (net/socket.c:2670) 
[ 520.563658][ T5277] ? __pfx____sys_sendmsg (net/socket.c:2657) 
[ 520.563975][ T5277] ? rcu_read_lock_any_held (kernel/rcu/update.c:386 kernel/rcu/update.c:380) 
[ 520.564281][ T5277] ? rcu_read_lock_any_held (kernel/rcu/update.c:386 kernel/rcu/update.c:380) 
[ 520.564581][ T5277] ? validate_chain (kernel/locking/lockdep.c:3804 kernel/locking/lockdep.c:3824 kernel/locking/lockdep.c:3879) 
[ 520.564895][ T5277] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 520.565214][ T5277] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 520.565521][ T5277] __sys_sendmsg (net/socket.c:2700) 
[ 520.565822][ T5277] ? __pfx___sys_sendmsg (net/socket.c:2685) 
[ 520.566146][ T5277] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 520.566450][ T5277] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 520.566756][ T5277] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[  520.567140][ T5277] RIP: 0033:0x7f6f409a41e7
[ 520.567461][ T5277] Code: 0e 00 f7 d8 64 89 02 48 c7 c0 ff ff ff ff eb b9 0f 1f 00 f3 0f 1e fa 64 8b 04 25 18 00 00 00 85 c0 75 10 b8 2e 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 51 c3 48 83 ec 28 89 54 24 1c 48 89 74 24 10
All code
========
   0:	0e                   	(bad)
   1:	00 f7                	add    %dh,%bh
   3:	d8 64 89 02          	fsubs  0x2(%rcx,%rcx,4)
   7:	48 c7 c0 ff ff ff ff 	mov    $0xffffffffffffffff,%rax
   e:	eb b9                	jmp    0xffffffffffffffc9
  10:	0f 1f 00             	nopl   (%rax)
  13:	f3 0f 1e fa          	endbr64
  17:	64 8b 04 25 18 00 00 	mov    %fs:0x18,%eax
  1e:	00 
  1f:	85 c0                	test   %eax,%eax
  21:	75 10                	jne    0x33
  23:	b8 2e 00 00 00       	mov    $0x2e,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 00 f0 ff ff    	cmp    $0xfffffffffffff000,%rax		<-- trapping instruction
  30:	77 51                	ja     0x83
  32:	c3                   	ret
  33:	48 83 ec 28          	sub    $0x28,%rsp
  37:	89 54 24 1c          	mov    %edx,0x1c(%rsp)
  3b:	48 89 74 24 10       	mov    %rsi,0x10(%rsp)

Code starting with the faulting instruction
===========================================
   0:	48 3d 00 f0 ff ff    	cmp    $0xfffffffffffff000,%rax
   6:	77 51                	ja     0x59
   8:	c3                   	ret
   9:	48 83 ec 28          	sub    $0x28,%rsp
   d:	89 54 24 1c          	mov    %edx,0x1c(%rsp)
  11:	48 89 74 24 10       	mov    %rsi,0x10(%rsp)
[  520.568554][ T5277] RSP: 002b:00007ffe18105578 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[  520.569020][ T5277] RAX: ffffffffffffffda RBX: 00007ffe18105cb0 RCX: 00007f6f409a41e7
[  520.569481][ T5277] RDX: 0000000000000000 RSI: 00007ffe181055e0 RDI: 0000000000000005
[  520.569938][ T5277] RBP: 0000000000000006 R08: 0000000000000078 R09: 0000000000000000
[  520.570398][ T5277] R10: 00007f6f40a32ac0 R11: 0000000000000246 R12: 00007ffe18105ce8
[  520.570844][ T5277] R13: 00000000686e7a59 R14: 0000000000499600 R15: 00007ffe181056d0
| [  524.506212][ T5307] ------------[ cut here ]------------
| [ 524.506543][ T5307] WARNING: CPU: 2 PID: 5307 at ./include/net/netdev_lock.h:17 netif_set_mtu_ext (./include/net/netdev_lock.h:17 ./include/net/netdev_lock.h:15 ./include/net/netdev_lock.h:25 net/core/dev.c:9610) 
| [  524.507170][ T5307] Modules linked in: sctp act_gact cls_flower sch_ingress vxlan ip6_gre gre [last unloaded: test_bpf]
| [  524.508434][ T5307] Tainted: [W]=WARN
[  524.508677][ T5307] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 524.509082][ T5307] RIP: 0010:netif_set_mtu_ext (./include/net/netdev_lock.h:17 ./include/net/netdev_lock.h:15 ./include/net/netdev_lock.h:25 net/core/dev.c:9610) 
[ 524.509408][ T5307] Code: 00 00 8b 05 77 04 bc 02 85 c0 0f 84 52 fe ff ff 48 8d bb c0 0c 00 00 be ff ff ff ff e8 da fc 9b 00 85 c0 0f 85 39 fe ff ff 90 <0f> 0b 90 e9 30 fe ff ff 48 b8 00 00 00 00 00 fc ff df 4c 89 fa 48
All code
========
   0:	00 00                	add    %al,(%rax)
   2:	8b 05 77 04 bc 02    	mov    0x2bc0477(%rip),%eax        # 0x2bc047f
   8:	85 c0                	test   %eax,%eax
   a:	0f 84 52 fe ff ff    	je     0xfffffffffffffe62
  10:	48 8d bb c0 0c 00 00 	lea    0xcc0(%rbx),%rdi
  17:	be ff ff ff ff       	mov    $0xffffffff,%esi
  1c:	e8 da fc 9b 00       	call   0x9bfcfb
  21:	85 c0                	test   %eax,%eax
  23:	0f 85 39 fe ff ff    	jne    0xfffffffffffffe62
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	e9 30 fe ff ff       	jmp    0xfffffffffffffe62
  32:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
  39:	fc ff df 
  3c:	4c 89 fa             	mov    %r15,%rdx
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	e9 30 fe ff ff       	jmp    0xfffffffffffffe38
   8:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
   f:	fc ff df 
  12:	4c 89 fa             	mov    %r15,%rdx
  15:	48                   	rex.W
[  524.510512][ T5307] RSP: 0018:ffffc9000b077080 EFLAGS: 00010246
[  524.510907][ T5307] RAX: 0000000000000000 RBX: ffff888011aba000 RCX: 0000000000000001
[  524.511380][ T5307] RDX: 0000000000000000 RSI: ffffffff93510751 RDI: ffffffff92c58280
[  524.511870][ T5307] RBP: ffffc9000b077168 R08: 0000000000000000 R09: 0000000000000000
[  524.512346][ T5307] R10: ffffc9000b077198 R11: ffffffff93f8d1e0 R12: 1ffff9200160ee14
[  524.512811][ T5307] R13: 00000000000005dc R14: ffffc9000b077198 R15: ffff888011abaf48
[  524.513286][ T5307] FS:  00007f444871f800(0000) GS:ffff8880d7499000(0000) knlGS:0000000000000000
[  524.513861][ T5307] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  524.514271][ T5307] CR2: 00007f444890aba0 CR3: 000000000da3f004 CR4: 0000000000772ef0
[  524.514740][ T5307] PKRU: 55555554
[  524.514989][ T5307] Call Trace:
[  524.515230][ T5307]  <TASK>
[ 524.515399][ T5307] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 524.515714][ T5307] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 524.516063][ T5307] netif_set_mtu (net/core/dev.c:9652) 
[ 524.516378][ T5307] ? __pfx_netif_set_mtu (net/core/dev.c:9647) 
[ 524.516709][ T5307] dev_set_mtu (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:47 net/core/dev_api.c:249) 
[ 524.516961][ T5307] br_mtu_auto_adjust (net/bridge/br_if.c:525) 
[ 524.517281][ T5307] br_add_if (net/bridge/br_if.c:697) 
[ 524.517532][ T5307] do_set_master (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:41 net/core/rtnetlink.c:2949) 
[ 524.517843][ T5307] ? rtnl_configure_link (net/core/rtnetlink.c:3592) 
[ 524.518177][ T5307] rtnl_newlink_create (net/core/rtnetlink.c:3840) 
[ 524.518498][ T5307] ? __pfx_rtnl_newlink_create (net/core/rtnetlink.c:3791) 
[ 524.518811][ T5307] ? __dev_get_by_name (net/core/dev.c:865) 
[ 524.519135][ T5307] ? rtnl_dev_get (net/core/rtnetlink.c:3404) 
[ 524.519449][ T5307] ? __pfx_rtnl_dev_get (net/core/rtnetlink.c:3404) 
[ 524.519766][ T5307] ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4056) 
[ 524.520092][ T5307] ? reacquire_held_locks (kernel/locking/lockdep.c:5388) 
[ 524.520410][ T5307] __rtnl_newlink (net/core/rtnetlink.c:3942) 
[ 524.520745][ T5307] rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4058) 
[ 524.521072][ T5307] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 524.521399][ T5307] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/rtnetlink.c:6944) 
[ 524.521716][ T5307] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 524.522044][ T5307] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 524.522357][ T5307] rtnetlink_rcv_msg (net/core/rtnetlink.c:6946) 
[ 524.522673][ T5307] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 524.523009][ T5307] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 524.523338][ T5307] netlink_rcv_skb (net/netlink/af_netlink.c:2551) 
[ 524.523651][ T5307] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 524.523978][ T5307] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2528) 
[ 524.524302][ T5307] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/netlink/af_netlink.c:340) 
[ 524.524614][ T5307] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 ./include/net/netns/generic.h:48 net/netlink/af_netlink.c:333) 
[ 524.524931][ T5307] netlink_unicast (net/netlink/af_netlink.c:1321 net/netlink/af_netlink.c:1346) 
[ 524.525265][ T5307] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1331) 
[ 524.525578][ T5307] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 524.525896][ T5307] netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 524.526232][ T5307] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1815) 
[ 524.526547][ T5307] ? __import_iovec (lib/iov_iter.c:1441 lib/iov_iter.c:1456) 
[ 524.526869][ T5307] ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 524.527197][ T5307] ? __pfx_____sys_sendmsg (net/socket.c:2560) 
[ 524.527510][ T5307] ? __pfx_copy_msghdr_from_user (net/socket.c:2540) 
[ 524.527913][ T5307] ___sys_sendmsg (net/socket.c:2670) 
[ 524.528240][ T5307] ? __pfx____sys_sendmsg (net/socket.c:2657) 
[ 524.528561][ T5307] ? rcu_read_lock_any_held (kernel/rcu/update.c:386 kernel/rcu/update.c:380) 
[ 524.528877][ T5307] ? rcu_read_lock_any_held (kernel/rcu/update.c:386 kernel/rcu/update.c:380) 
[ 524.529199][ T5307] ? validate_chain (kernel/locking/lockdep.c:3804 kernel/locking/lockdep.c:3824 kernel/locking/lockdep.c:3879) 
[ 524.529520][ T5307] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 524.529842][ T5307] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 524.530185][ T5307] __sys_sendmsg (net/socket.c:2700) 
[ 524.530499][ T5307] ? __pfx___sys_sendmsg (net/socket.c:2685) 
[ 524.530827][ T5307] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 524.531155][ T5307] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 524.531475][ T5307] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[  524.531867][ T5307] RIP: 0033:0x7f44488ec1e7
[ 524.532207][ T5307] Code: 0e 00 f7 d8 64 89 02 48 c7 c0 ff ff ff ff eb b9 0f 1f 00 f3 0f 1e fa 64 8b 04 25 18 00 00 00 85 c0 75 10 b8 2e 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 51 c3 48 83 ec 28 89 54 24 1c 48 89 74 24 10
All code
========
   0:	0e                   	(bad)
   1:	00 f7                	add    %dh,%bh
   3:	d8 64 89 02          	fsubs  0x2(%rcx,%rcx,4)
   7:	48 c7 c0 ff ff ff ff 	mov    $0xffffffffffffffff,%rax
   e:	eb b9                	jmp    0xffffffffffffffc9
  10:	0f 1f 00             	nopl   (%rax)
  13:	f3 0f 1e fa          	endbr64
  17:	64 8b 04 25 18 00 00 	mov    %fs:0x18,%eax
  1e:	00 
  1f:	85 c0                	test   %eax,%eax
  21:	75 10                	jne    0x33
  23:	b8 2e 00 00 00       	mov    $0x2e,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 00 f0 ff ff    	cmp    $0xfffffffffffff000,%rax		<-- trapping instruction
  30:	77 51                	ja     0x83
  32:	c3                   	ret
  33:	48 83 ec 28          	sub    $0x28,%rsp
  37:	89 54 24 1c          	mov    %edx,0x1c(%rsp)
  3b:	48 89 74 24 10       	mov    %rsi,0x10(%rsp)

Code starting with the faulting instruction
===========================================
   0:	48 3d 00 f0 ff ff    	cmp    $0xfffffffffffff000,%rax
   6:	77 51                	ja     0x59
   8:	c3                   	ret
   9:	48 83 ec 28          	sub    $0x28,%rsp
   d:	89 54 24 1c          	mov    %edx,0x1c(%rsp)
  11:	48 89 74 24 10       	mov    %rsi,0x10(%rsp)
[  524.533311][ T5307] RSP: 002b:00007ffce95d4f38 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[  524.533778][ T5307] RAX: ffffffffffffffda RBX: 00007ffce95d5670 RCX: 00007f44488ec1e7
[  524.534256][ T5307] RDX: 0000000000000000 RSI: 00007ffce95d4fa0 RDI: 0000000000000005
[  524.534723][ T5307] RBP: 0000000000000006 R08: 0000000000000078 R09: 0000000000000000
[  524.535202][ T5307] R10: 00007f444897aac0 R11: 0000000000000246 R12: 00007ffce95d56a8
[  524.535668][ T5307] R13: 00000000686e7a5d R14: 0000000000499600 R15: 00007ffce95d5090
| [  546.641354][ T5543] ------------[ cut here ]------------
| [ 546.641693][ T5543] WARNING: CPU: 0 PID: 5543 at ./include/net/netdev_lock.h:17 netif_set_mtu_ext (./include/net/netdev_lock.h:17 ./include/net/netdev_lock.h:15 ./include/net/netdev_lock.h:25 net/core/dev.c:9610) 
| [  546.642355][ T5543] Modules linked in: sctp act_gact cls_flower sch_ingress vxlan ip6_gre gre [last unloaded: test_bpf]
| [  546.643690][ T5543] Tainted: [W]=WARN
[  546.643936][ T5543] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 546.644357][ T5543] RIP: 0010:netif_set_mtu_ext (./include/net/netdev_lock.h:17 ./include/net/netdev_lock.h:15 ./include/net/netdev_lock.h:25 net/core/dev.c:9610) 
[ 546.644683][ T5543] Code: 00 00 8b 05 77 04 bc 02 85 c0 0f 84 52 fe ff ff 48 8d bb c0 0c 00 00 be ff ff ff ff e8 da fc 9b 00 85 c0 0f 85 39 fe ff ff 90 <0f> 0b 90 e9 30 fe ff ff 48 b8 00 00 00 00 00 fc ff df 4c 89 fa 48
All code
========
   0:	00 00                	add    %al,(%rax)
   2:	8b 05 77 04 bc 02    	mov    0x2bc0477(%rip),%eax        # 0x2bc047f
   8:	85 c0                	test   %eax,%eax
   a:	0f 84 52 fe ff ff    	je     0xfffffffffffffe62
  10:	48 8d bb c0 0c 00 00 	lea    0xcc0(%rbx),%rdi
  17:	be ff ff ff ff       	mov    $0xffffffff,%esi
  1c:	e8 da fc 9b 00       	call   0x9bfcfb
  21:	85 c0                	test   %eax,%eax
  23:	0f 85 39 fe ff ff    	jne    0xfffffffffffffe62
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	e9 30 fe ff ff       	jmp    0xfffffffffffffe62
  32:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
  39:	fc ff df 
  3c:	4c 89 fa             	mov    %r15,%rdx
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	e9 30 fe ff ff       	jmp    0xfffffffffffffe38
   8:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
   f:	fc ff df 
  12:	4c 89 fa             	mov    %r15,%rdx
  15:	48                   	rex.W
[  546.645827][ T5543] RSP: 0018:ffffc9000b6d7080 EFLAGS: 00010246
[  546.646251][ T5543] RAX: 0000000000000000 RBX: ffff888015a42000 RCX: 0000000000000001
[  546.646723][ T5543] RDX: 0000000000000000 RSI: ffffffff93510751 RDI: ffffffff92c58280
[  546.647203][ T5543] RBP: ffffc9000b6d7168 R08: 0000000000000000 R09: 0000000000000000
[  546.647678][ T5543] R10: ffffc9000b6d7198 R11: ffffffff93f8d1e0 R12: 1ffff920016dae14
[  546.648165][ T5543] R13: 00000000000005dc R14: ffffc9000b6d7198 R15: ffff888015a42f48
[  546.648637][ T5543] FS:  00007f3ec44dc800(0000) GS:ffff8880d7399000(0000) knlGS:0000000000000000
[  546.649196][ T5543] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  546.649591][ T5543] CR2: 000000000043d940 CR3: 00000000171b4002 CR4: 0000000000772ef0
[  546.650080][ T5543] PKRU: 55555554
[  546.650320][ T5543] Call Trace:
[  546.650556][ T5543]  <TASK>
[ 546.650719][ T5543] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 546.651045][ T5543] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 546.651377][ T5543] netif_set_mtu (net/core/dev.c:9652) 
[ 546.651699][ T5543] ? __pfx_netif_set_mtu (net/core/dev.c:9647) 
[ 546.652043][ T5543] dev_set_mtu (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:47 net/core/dev_api.c:249) 
[ 546.652285][ T5543] br_mtu_auto_adjust (net/bridge/br_if.c:525) 
[ 546.652609][ T5543] br_add_if (net/bridge/br_if.c:697) 
[ 546.652863][ T5543] do_set_master (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:41 net/core/rtnetlink.c:2949) 
[ 546.653189][ T5543] ? rtnl_configure_link (net/core/rtnetlink.c:3592) 
[ 546.653512][ T5543] rtnl_newlink_create (net/core/rtnetlink.c:3840) 
[ 546.653833][ T5543] ? __pfx_rtnl_newlink_create (net/core/rtnetlink.c:3791) 
[ 546.654158][ T5543] ? __dev_get_by_name (net/core/dev.c:865) 
[ 546.654477][ T5543] ? rtnl_dev_get (net/core/rtnetlink.c:3404) 
[ 546.654794][ T5543] ? __pfx_rtnl_dev_get (net/core/rtnetlink.c:3404) 
[ 546.655133][ T5543] ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4056) 
[ 546.655453][ T5543] ? reacquire_held_locks (kernel/locking/lockdep.c:5388) 
[ 546.655776][ T5543] __rtnl_newlink (net/core/rtnetlink.c:3942) 
[ 546.656116][ T5543] rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4058) 
[ 546.656449][ T5543] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 546.656778][ T5543] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/rtnetlink.c:6944) 
[ 546.657102][ T5543] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 546.657422][ T5543] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 546.657745][ T5543] rtnetlink_rcv_msg (net/core/rtnetlink.c:6946) 
[ 546.658070][ T5543] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 546.658393][ T5543] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 546.658717][ T5543] netlink_rcv_skb (net/netlink/af_netlink.c:2551) 
[ 546.659047][ T5543] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 546.659367][ T5543] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2528) 
[ 546.659695][ T5543] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/netlink/af_netlink.c:340) 
[ 546.660025][ T5543] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 ./include/net/netns/generic.h:48 net/netlink/af_netlink.c:333) 
[ 546.660347][ T5543] netlink_unicast (net/netlink/af_netlink.c:1321 net/netlink/af_netlink.c:1346) 
[ 546.660668][ T5543] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1331) 
[ 546.660996][ T5543] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 546.661318][ T5543] netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 546.661640][ T5543] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1815) 
[ 546.661980][ T5543] ? __import_iovec (lib/iov_iter.c:1441 lib/iov_iter.c:1456) 
[ 546.662312][ T5543] ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 546.662631][ T5543] ? __pfx_____sys_sendmsg (net/socket.c:2560) 
[ 546.662963][ T5543] ? __pfx_copy_msghdr_from_user (net/socket.c:2540) 
[ 546.663372][ T5543] ___sys_sendmsg (net/socket.c:2670) 
[ 546.663694][ T5543] ? __pfx____sys_sendmsg (net/socket.c:2657) 
[ 546.664023][ T5543] ? __pfx_handle_pte_fault (mm/memory.c:6026) 
[ 546.664343][ T5543] ? reacquire_held_locks (kernel/locking/lockdep.c:5388) 
[ 546.664668][ T5543] ? do_user_addr_fault (arch/x86/mm/fault.c:1327) 
[ 546.664998][ T5543] ? __handle_mm_fault (mm/memory.c:6212) 
[ 546.665317][ T5543] ? __pfx___handle_mm_fault (mm/memory.c:6121) 
[ 546.665629][ T5543] ? lock_vma_under_rcu (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 mm/mmap_lock.c:171) 
[ 546.665976][ T5543] __sys_sendmsg (net/socket.c:2700) 
[ 546.666295][ T5543] ? __pfx___sys_sendmsg (net/socket.c:2685) 
[ 546.666621][ T5543] ? exc_page_fault (./arch/x86/include/asm/irqflags.h:26 ./arch/x86/include/asm/irqflags.h:109 ./arch/x86/include/asm/irqflags.h:151 arch/x86/mm/fault.c:1484 arch/x86/mm/fault.c:1532) 
[ 546.666971][ T5543] ? do_user_addr_fault (./arch/x86/include/asm/atomic.h:93 ./include/linux/atomic/atomic-arch-fallback.h:949 ./include/linux/atomic/atomic-instrumented.h:401 ./include/linux/refcount.h:389 ./include/linux/refcount.h:432 ./include/linux/mmap_lock.h:142 ./include/linux/mmap_lock.h:237 arch/x86/mm/fault.c:1338) 
[ 546.667294][ T5543] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 546.667613][ T5543] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 546.667931][ T5543] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[  546.668335][ T5543] RIP: 0033:0x7f3ec46a91e7
[ 546.668666][ T5543] Code: 0e 00 f7 d8 64 89 02 48 c7 c0 ff ff ff ff eb b9 0f 1f 00 f3 0f 1e fa 64 8b 04 25 18 00 00 00 85 c0 75 10 b8 2e 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 51 c3 48 83 ec 28 89 54 24 1c 48 89 74 24 10
All code
========
   0:	0e                   	(bad)
   1:	00 f7                	add    %dh,%bh
   3:	d8 64 89 02          	fsubs  0x2(%rcx,%rcx,4)
   7:	48 c7 c0 ff ff ff ff 	mov    $0xffffffffffffffff,%rax
   e:	eb b9                	jmp    0xffffffffffffffc9
  10:	0f 1f 00             	nopl   (%rax)
  13:	f3 0f 1e fa          	endbr64
  17:	64 8b 04 25 18 00 00 	mov    %fs:0x18,%eax
  1e:	00 
  1f:	85 c0                	test   %eax,%eax
  21:	75 10                	jne    0x33
  23:	b8 2e 00 00 00       	mov    $0x2e,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 00 f0 ff ff    	cmp    $0xfffffffffffff000,%rax		<-- trapping instruction
  30:	77 51                	ja     0x83
  32:	c3                   	ret
  33:	48 83 ec 28          	sub    $0x28,%rsp
  37:	89 54 24 1c          	mov    %edx,0x1c(%rsp)
  3b:	48 89 74 24 10       	mov    %rsi,0x10(%rsp)

Code starting with the faulting instruction
===========================================
   0:	48 3d 00 f0 ff ff    	cmp    $0xfffffffffffff000,%rax
   6:	77 51                	ja     0x59
   8:	c3                   	ret
   9:	48 83 ec 28          	sub    $0x28,%rsp
   d:	89 54 24 1c          	mov    %edx,0x1c(%rsp)
  11:	48 89 74 24 10       	mov    %rsi,0x10(%rsp)
[  546.669818][ T5543] RSP: 002b:00007ffe6bac19e8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[  546.670306][ T5543] RAX: ffffffffffffffda RBX: 00007ffe6bac2120 RCX: 00007f3ec46a91e7
[  546.670780][ T5543] RDX: 0000000000000000 RSI: 00007ffe6bac1a50 RDI: 0000000000000005
[  546.671270][ T5543] RBP: 0000000000000006 R08: 000000000000006c R09: 0000000000000000
[  546.671755][ T5543] R10: 00007f3ec4737ac0 R11: 0000000000000246 R12: 00007ffe6bac2158
[  546.672241][ T5543] R13: 00000000686e7a73 R14: 0000000000499600 R15: 00007ffe6bac1b40
| [  550.539306][ T5573] ------------[ cut here ]------------
| [ 550.539639][ T5573] WARNING: CPU: 2 PID: 5573 at ./include/net/netdev_lock.h:17 netif_set_mtu_ext (./include/net/netdev_lock.h:17 ./include/net/netdev_lock.h:15 ./include/net/netdev_lock.h:25 net/core/dev.c:9610) 
| [  550.540812][ T5573] Modules linked in: sctp act_gact cls_flower sch_ingress vxlan ip6_gre gre [last unloaded: test_bpf]
| [  550.542111][ T5573] Tainted: [W]=WARN
[  550.542353][ T5573] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 550.542747][ T5573] RIP: 0010:netif_set_mtu_ext (./include/net/netdev_lock.h:17 ./include/net/netdev_lock.h:15 ./include/net/netdev_lock.h:25 net/core/dev.c:9610) 
[ 550.543094][ T5573] Code: 00 00 8b 05 77 04 bc 02 85 c0 0f 84 52 fe ff ff 48 8d bb c0 0c 00 00 be ff ff ff ff e8 da fc 9b 00 85 c0 0f 85 39 fe ff ff 90 <0f> 0b 90 e9 30 fe ff ff 48 b8 00 00 00 00 00 fc ff df 4c 89 fa 48
All code
========
   0:	00 00                	add    %al,(%rax)
   2:	8b 05 77 04 bc 02    	mov    0x2bc0477(%rip),%eax        # 0x2bc047f
   8:	85 c0                	test   %eax,%eax
   a:	0f 84 52 fe ff ff    	je     0xfffffffffffffe62
  10:	48 8d bb c0 0c 00 00 	lea    0xcc0(%rbx),%rdi
  17:	be ff ff ff ff       	mov    $0xffffffff,%esi
  1c:	e8 da fc 9b 00       	call   0x9bfcfb
  21:	85 c0                	test   %eax,%eax
  23:	0f 85 39 fe ff ff    	jne    0xfffffffffffffe62
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	e9 30 fe ff ff       	jmp    0xfffffffffffffe62
  32:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
  39:	fc ff df 
  3c:	4c 89 fa             	mov    %r15,%rdx
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	e9 30 fe ff ff       	jmp    0xfffffffffffffe38
   8:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
   f:	fc ff df 
  12:	4c 89 fa             	mov    %r15,%rdx
  15:	48                   	rex.W
[  550.544204][ T5573] RSP: 0018:ffffc9000b837080 EFLAGS: 00010246
[  550.544603][ T5573] RAX: 0000000000000000 RBX: ffff88800de2a000 RCX: 0000000000000001
[  550.545091][ T5573] RDX: 0000000000000000 RSI: ffffffff93510751 RDI: ffffffff92c58280
[  550.545561][ T5573] RBP: ffffc9000b837168 R08: 0000000000000000 R09: 0000000000000000
[  550.546042][ T5573] R10: ffffc9000b837198 R11: ffffffff93f8d1e0 R12: 1ffff92001706e14
[  550.546515][ T5573] R13: 00000000000005dc R14: ffffc9000b837198 R15: ffff88800de2af48
[  550.546996][ T5573] FS:  00007f73b558e800(0000) GS:ffff8880d7499000(0000) knlGS:0000000000000000
[  550.547541][ T5573] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  550.547934][ T5573] CR2: 000000000043d940 CR3: 00000000178a8005 CR4: 0000000000772ef0
[  550.548416][ T5573] PKRU: 55555554
[  550.548656][ T5573] Call Trace:
[  550.548894][ T5573]  <TASK>
[ 550.549074][ T5573] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 550.549390][ T5573] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 550.549715][ T5573] netif_set_mtu (net/core/dev.c:9652) 
[ 550.550038][ T5573] ? __pfx_netif_set_mtu (net/core/dev.c:9647) 
[ 550.550367][ T5573] dev_set_mtu (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:47 net/core/dev_api.c:249) 
[ 550.550616][ T5573] br_mtu_auto_adjust (net/bridge/br_if.c:525) 
[ 550.550934][ T5573] br_add_if (net/bridge/br_if.c:697) 
[ 550.551209][ T5573] do_set_master (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:41 net/core/rtnetlink.c:2949) 
[ 550.551520][ T5573] ? rtnl_configure_link (net/core/rtnetlink.c:3592) 
[ 550.551849][ T5573] rtnl_newlink_create (net/core/rtnetlink.c:3840) 
[ 550.552180][ T5573] ? __pfx_rtnl_newlink_create (net/core/rtnetlink.c:3791) 
[ 550.552494][ T5573] ? __dev_get_by_name (net/core/dev.c:865) 
[ 550.552807][ T5573] ? rtnl_dev_get (net/core/rtnetlink.c:3404) 
[ 550.553136][ T5573] ? __pfx_rtnl_dev_get (net/core/rtnetlink.c:3404) 
[ 550.553454][ T5573] ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4056) 
[ 550.553765][ T5573] ? reacquire_held_locks (kernel/locking/lockdep.c:5388) 
[ 550.554092][ T5573] __rtnl_newlink (net/core/rtnetlink.c:3942) 
[ 550.554419][ T5573] rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4058) 
[ 550.554736][ T5573] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 550.555083][ T5573] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/rtnetlink.c:6944) 
[ 550.555407][ T5573] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 550.555724][ T5573] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 550.556045][ T5573] rtnetlink_rcv_msg (net/core/rtnetlink.c:6946) 
[ 550.556363][ T5573] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 550.556680][ T5573] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 550.557010][ T5573] netlink_rcv_skb (net/netlink/af_netlink.c:2551) 
[ 550.557328][ T5573] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 550.557642][ T5573] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2528) 
[ 550.557986][ T5573] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/netlink/af_netlink.c:340) 
[ 550.558298][ T5573] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 ./include/net/netns/generic.h:48 net/netlink/af_netlink.c:333) 
[ 550.558616][ T5573] netlink_unicast (net/netlink/af_netlink.c:1321 net/netlink/af_netlink.c:1346) 
[ 550.558935][ T5573] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1331) 
[ 550.559272][ T5573] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 550.559589][ T5573] netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 550.559905][ T5573] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1815) 
[ 550.560235][ T5573] ? __import_iovec (lib/iov_iter.c:1441 lib/iov_iter.c:1456) 
[ 550.560558][ T5573] ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 550.560873][ T5573] ? __pfx_____sys_sendmsg (net/socket.c:2560) 
[ 550.561196][ T5573] ? __pfx_copy_msghdr_from_user (net/socket.c:2540) 
[ 550.561593][ T5573] ___sys_sendmsg (net/socket.c:2670) 
[ 550.561921][ T5573] ? __pfx____sys_sendmsg (net/socket.c:2657) 
[ 550.562245][ T5573] ? __pfx_handle_pte_fault (mm/memory.c:6026) 
[ 550.562568][ T5573] ? reacquire_held_locks (kernel/locking/lockdep.c:5388) 
[ 550.562879][ T5573] ? do_user_addr_fault (arch/x86/mm/fault.c:1327) 
[ 550.563217][ T5573] ? __handle_mm_fault (mm/memory.c:6212) 
[ 550.563535][ T5573] ? __pfx___handle_mm_fault (mm/memory.c:6121) 
[ 550.563846][ T5573] ? lock_vma_under_rcu (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 mm/mmap_lock.c:171) 
[ 550.564188][ T5573] __sys_sendmsg (net/socket.c:2700) 
[ 550.564509][ T5573] ? __pfx___sys_sendmsg (net/socket.c:2685) 
[ 550.564822][ T5573] ? exc_page_fault (./arch/x86/include/asm/irqflags.h:26 ./arch/x86/include/asm/irqflags.h:109 ./arch/x86/include/asm/irqflags.h:151 arch/x86/mm/fault.c:1484 arch/x86/mm/fault.c:1532) 
[ 550.565154][ T5573] ? do_user_addr_fault (./arch/x86/include/asm/atomic.h:93 ./include/linux/atomic/atomic-arch-fallback.h:949 ./include/linux/atomic/atomic-instrumented.h:401 ./include/linux/refcount.h:389 ./include/linux/refcount.h:432 ./include/linux/mmap_lock.h:142 ./include/linux/mmap_lock.h:237 arch/x86/mm/fault.c:1338) 
[ 550.565468][ T5573] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 550.565784][ T5573] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 550.566108][ T5573] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[  550.566494][ T5573] RIP: 0033:0x7f73b575b1e7
[ 550.566816][ T5573] Code: 0e 00 f7 d8 64 89 02 48 c7 c0 ff ff ff ff eb b9 0f 1f 00 f3 0f 1e fa 64 8b 04 25 18 00 00 00 85 c0 75 10 b8 2e 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 51 c3 48 83 ec 28 89 54 24 1c 48 89 74 24 10
All code
========
   0:	0e                   	(bad)
   1:	00 f7                	add    %dh,%bh
   3:	d8 64 89 02          	fsubs  0x2(%rcx,%rcx,4)
   7:	48 c7 c0 ff ff ff ff 	mov    $0xffffffffffffffff,%rax
   e:	eb b9                	jmp    0xffffffffffffffc9
  10:	0f 1f 00             	nopl   (%rax)
  13:	f3 0f 1e fa          	endbr64
  17:	64 8b 04 25 18 00 00 	mov    %fs:0x18,%eax
  1e:	00 
  1f:	85 c0                	test   %eax,%eax
  21:	75 10                	jne    0x33
  23:	b8 2e 00 00 00       	mov    $0x2e,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 00 f0 ff ff    	cmp    $0xfffffffffffff000,%rax		<-- trapping instruction
  30:	77 51                	ja     0x83
  32:	c3                   	ret
  33:	48 83 ec 28          	sub    $0x28,%rsp
  37:	89 54 24 1c          	mov    %edx,0x1c(%rsp)
  3b:	48 89 74 24 10       	mov    %rsi,0x10(%rsp)

Code starting with the faulting instruction
===========================================
   0:	48 3d 00 f0 ff ff    	cmp    $0xfffffffffffff000,%rax
   6:	77 51                	ja     0x59
   8:	c3                   	ret
   9:	48 83 ec 28          	sub    $0x28,%rsp
   d:	89 54 24 1c          	mov    %edx,0x1c(%rsp)
  11:	48 89 74 24 10       	mov    %rsi,0x10(%rsp)
[  550.567922][ T5573] RSP: 002b:00007ffe57b11e88 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[  550.568399][ T5573] RAX: ffffffffffffffda RBX: 00007ffe57b125c0 RCX: 00007f73b575b1e7
[  550.568867][ T5573] RDX: 0000000000000000 RSI: 00007ffe57b11ef0 RDI: 0000000000000005
[  550.569337][ T5573] RBP: 0000000000000006 R08: 000000000000006c R09: 0000000000000000
[  550.569799][ T5573] R10: 00007f73b57e9ac0 R11: 0000000000000246 R12: 00007ffe57b125f8
[  550.570272][ T5573] R13: 00000000686e7a77 R14: 0000000000499600 R15: 00007ffe57b11fe0
| [  557.577423][ T5639] ------------[ cut here ]------------
| [ 557.577728][ T5639] WARNING: CPU: 3 PID: 5639 at ./include/net/netdev_lock.h:17 netif_set_mtu_ext (./include/net/netdev_lock.h:17 ./include/net/netdev_lock.h:15 ./include/net/netdev_lock.h:25 net/core/dev.c:9610) 
| [  557.578840][ T5639] Modules linked in: sctp act_gact cls_flower sch_ingress vxlan ip6_gre gre [last unloaded: test_bpf]
| [  557.580099][ T5639] Tainted: [W]=WARN
[  557.580328][ T5639] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 557.580704][ T5639] RIP: 0010:netif_set_mtu_ext (./include/net/netdev_lock.h:17 ./include/net/netdev_lock.h:15 ./include/net/netdev_lock.h:25 net/core/dev.c:9610) 
[ 557.581033][ T5639] Code: 00 00 8b 05 77 04 bc 02 85 c0 0f 84 52 fe ff ff 48 8d bb c0 0c 00 00 be ff ff ff ff e8 da fc 9b 00 85 c0 0f 85 39 fe ff ff 90 <0f> 0b 90 e9 30 fe ff ff 48 b8 00 00 00 00 00 fc ff df 4c 89 fa 48
All code
========
   0:	00 00                	add    %al,(%rax)
   2:	8b 05 77 04 bc 02    	mov    0x2bc0477(%rip),%eax        # 0x2bc047f
   8:	85 c0                	test   %eax,%eax
   a:	0f 84 52 fe ff ff    	je     0xfffffffffffffe62
  10:	48 8d bb c0 0c 00 00 	lea    0xcc0(%rbx),%rdi
  17:	be ff ff ff ff       	mov    $0xffffffff,%esi
  1c:	e8 da fc 9b 00       	call   0x9bfcfb
  21:	85 c0                	test   %eax,%eax
  23:	0f 85 39 fe ff ff    	jne    0xfffffffffffffe62
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	e9 30 fe ff ff       	jmp    0xfffffffffffffe62
  32:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
  39:	fc ff df 
  3c:	4c 89 fa             	mov    %r15,%rdx
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	e9 30 fe ff ff       	jmp    0xfffffffffffffe38
   8:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
   f:	fc ff df 
  12:	4c 89 fa             	mov    %r15,%rdx
  15:	48                   	rex.W
[  557.582139][ T5639] RSP: 0018:ffffc9000baf7080 EFLAGS: 00010246
[  557.582522][ T5639] RAX: 0000000000000000 RBX: ffff8880051aa000 RCX: 0000000000000001
[  557.582980][ T5639] RDX: 0000000000000000 RSI: ffffffff93510751 RDI: ffffffff92c58280
[  557.583440][ T5639] RBP: ffffc9000baf7168 R08: 0000000000000000 R09: 0000000000000000
[  557.583890][ T5639] R10: ffffc9000baf7198 R11: ffffffff93f8d1e0 R12: 1ffff9200175ee14
[  557.584349][ T5639] R13: 00000000000005dc R14: ffffc9000baf7198 R15: ffff8880051aaf48
[  557.584799][ T5639] FS:  00007f845dfeb800(0000) GS:ffff8880d7519000(0000) knlGS:0000000000000000
[  557.585352][ T5639] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  557.585733][ T5639] CR2: 00007f845e1d6ba0 CR3: 000000000aa34001 CR4: 0000000000772ef0
[  557.586195][ T5639] PKRU: 55555554
[  557.586420][ T5639] Call Trace:
[  557.586645][ T5639]  <TASK>
[ 557.586802][ T5639] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 557.587112][ T5639] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 557.587436][ T5639] netif_set_mtu (net/core/dev.c:9652) 
[ 557.587736][ T5639] ? __pfx_netif_set_mtu (net/core/dev.c:9647) 
[ 557.588062][ T5639] dev_set_mtu (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:47 net/core/dev_api.c:249) 
[ 557.588292][ T5639] br_mtu_auto_adjust (net/bridge/br_if.c:525) 
[ 557.588597][ T5639] br_add_if (net/bridge/br_if.c:697) 
[ 557.588834][ T5639] do_set_master (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:41 net/core/rtnetlink.c:2949) 
[ 557.589150][ T5639] ? rtnl_configure_link (net/core/rtnetlink.c:3592) 
[ 557.589469][ T5639] rtnl_newlink_create (net/core/rtnetlink.c:3840) 
[ 557.589778][ T5639] ? __pfx_rtnl_newlink_create (net/core/rtnetlink.c:3791) 
[ 557.590085][ T5639] ? __dev_get_by_name (net/core/dev.c:865) 
[ 557.590388][ T5639] ? rtnl_dev_get (net/core/rtnetlink.c:3404) 
[ 557.590687][ T5639] ? __pfx_rtnl_dev_get (net/core/rtnetlink.c:3404) 
[ 557.590999][ T5639] ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4056) 
[ 557.591299][ T5639] ? reacquire_held_locks (kernel/locking/lockdep.c:5388) 
[ 557.591604][ T5639] __rtnl_newlink (net/core/rtnetlink.c:3942) 
[ 557.591934][ T5639] rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4058) 
[ 557.592252][ T5639] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 557.592566][ T5639] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/rtnetlink.c:6944) 
[ 557.592865][ T5639] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 557.593184][ T5639] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 557.593492][ T5639] rtnetlink_rcv_msg (net/core/rtnetlink.c:6946) 
[ 557.593792][ T5639] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 557.594110][ T5639] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 557.594421][ T5639] netlink_rcv_skb (net/netlink/af_netlink.c:2551) 
[ 557.594723][ T5639] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 557.595033][ T5639] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2528) 
[ 557.595346][ T5639] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/netlink/af_netlink.c:340) 
[ 557.595648][ T5639] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 ./include/net/netns/generic.h:48 net/netlink/af_netlink.c:333) 
[ 557.595961][ T5639] netlink_unicast (net/netlink/af_netlink.c:1321 net/netlink/af_netlink.c:1346) 
[ 557.596270][ T5639] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1331) 
[ 557.596571][ T5639] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 557.596878][ T5639] netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 557.597199][ T5639] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1815) 
[ 557.597507][ T5639] ? __import_iovec (lib/iov_iter.c:1441 lib/iov_iter.c:1456) 
[ 557.597816][ T5639] ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 557.598125][ T5639] ? __pfx_____sys_sendmsg (net/socket.c:2560) 
[ 557.598425][ T5639] ? __pfx_copy_msghdr_from_user (net/socket.c:2540) 
[ 557.598818][ T5639] ___sys_sendmsg (net/socket.c:2670) 
[ 557.599137][ T5639] ? __pfx____sys_sendmsg (net/socket.c:2657) 
[ 557.599445][ T5639] ? rcu_read_lock_any_held (kernel/rcu/update.c:386 kernel/rcu/update.c:380) 
[ 557.599749][ T5639] ? rcu_read_lock_any_held (kernel/rcu/update.c:386 kernel/rcu/update.c:380) 
[ 557.600063][ T5639] ? validate_chain (kernel/locking/lockdep.c:3804 kernel/locking/lockdep.c:3824 kernel/locking/lockdep.c:3879) 
[ 557.600367][ T5639] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 557.600677][ T5639] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 557.601005][ T5639] __sys_sendmsg (net/socket.c:2700) 
[ 557.601311][ T5639] ? __pfx___sys_sendmsg (net/socket.c:2685) 
[ 557.601623][ T5639] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 557.601937][ T5639] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 557.602256][ T5639] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[  557.602627][ T5639] RIP: 0033:0x7f845e1b81e7
[ 557.602949][ T5639] Code: 0e 00 f7 d8 64 89 02 48 c7 c0 ff ff ff ff eb b9 0f 1f 00 f3 0f 1e fa 64 8b 04 25 18 00 00 00 85 c0 75 10 b8 2e 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 51 c3 48 83 ec 28 89 54 24 1c 48 89 74 24 10
All code
========
   0:	0e                   	(bad)
   1:	00 f7                	add    %dh,%bh
   3:	d8 64 89 02          	fsubs  0x2(%rcx,%rcx,4)
   7:	48 c7 c0 ff ff ff ff 	mov    $0xffffffffffffffff,%rax
   e:	eb b9                	jmp    0xffffffffffffffc9
  10:	0f 1f 00             	nopl   (%rax)
  13:	f3 0f 1e fa          	endbr64
  17:	64 8b 04 25 18 00 00 	mov    %fs:0x18,%eax
  1e:	00 
  1f:	85 c0                	test   %eax,%eax
  21:	75 10                	jne    0x33
  23:	b8 2e 00 00 00       	mov    $0x2e,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 00 f0 ff ff    	cmp    $0xfffffffffffff000,%rax		<-- trapping instruction
  30:	77 51                	ja     0x83
  32:	c3                   	ret
  33:	48 83 ec 28          	sub    $0x28,%rsp
  37:	89 54 24 1c          	mov    %edx,0x1c(%rsp)
  3b:	48 89 74 24 10       	mov    %rsi,0x10(%rsp)

Code starting with the faulting instruction
===========================================
   0:	48 3d 00 f0 ff ff    	cmp    $0xfffffffffffff000,%rax
   6:	77 51                	ja     0x59
   8:	c3                   	ret
   9:	48 83 ec 28          	sub    $0x28,%rsp
   d:	89 54 24 1c          	mov    %edx,0x1c(%rsp)
  11:	48 89 74 24 10       	mov    %rsi,0x10(%rsp)
[  557.604041][ T5639] RSP: 002b:00007ffe85240aa8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[  557.604494][ T5639] RAX: ffffffffffffffda RBX: 00007ffe852411e0 RCX: 00007f845e1b81e7
[  557.604964][ T5639] RDX: 0000000000000000 RSI: 00007ffe85240b10 RDI: 0000000000000005
[  557.605430][ T5639] RBP: 0000000000000006 R08: 0000000000000078 R09: 0000000000000000
[  557.605882][ T5639] R10: 00007f845e246ac0 R11: 0000000000000246 R12: 00007ffe85241218
[  557.606339][ T5639] R13: 00000000686e7a7e R14: 0000000000499600 R15: 00007ffe85240c00
| [  561.592061][ T5669] ------------[ cut here ]------------
| [ 561.592375][ T5669] WARNING: CPU: 3 PID: 5669 at ./include/net/netdev_lock.h:17 netif_set_mtu_ext (./include/net/netdev_lock.h:17 ./include/net/netdev_lock.h:15 ./include/net/netdev_lock.h:25 net/core/dev.c:9610) 
| [  561.592999][ T5669] Modules linked in: sctp act_gact cls_flower sch_ingress vxlan ip6_gre gre [last unloaded: test_bpf]
| [  561.594263][ T5669] Tainted: [W]=WARN
[  561.594498][ T5669] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 561.594875][ T5669] RIP: 0010:netif_set_mtu_ext (./include/net/netdev_lock.h:17 ./include/net/netdev_lock.h:15 ./include/net/netdev_lock.h:25 net/core/dev.c:9610) 
[ 561.595228][ T5669] Code: 00 00 8b 05 77 04 bc 02 85 c0 0f 84 52 fe ff ff 48 8d bb c0 0c 00 00 be ff ff ff ff e8 da fc 9b 00 85 c0 0f 85 39 fe ff ff 90 <0f> 0b 90 e9 30 fe ff ff 48 b8 00 00 00 00 00 fc ff df 4c 89 fa 48
All code
========
   0:	00 00                	add    %al,(%rax)
   2:	8b 05 77 04 bc 02    	mov    0x2bc0477(%rip),%eax        # 0x2bc047f
   8:	85 c0                	test   %eax,%eax
   a:	0f 84 52 fe ff ff    	je     0xfffffffffffffe62
  10:	48 8d bb c0 0c 00 00 	lea    0xcc0(%rbx),%rdi
  17:	be ff ff ff ff       	mov    $0xffffffff,%esi
  1c:	e8 da fc 9b 00       	call   0x9bfcfb
  21:	85 c0                	test   %eax,%eax
  23:	0f 85 39 fe ff ff    	jne    0xfffffffffffffe62
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	e9 30 fe ff ff       	jmp    0xfffffffffffffe62
  32:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
  39:	fc ff df 
  3c:	4c 89 fa             	mov    %r15,%rdx
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	e9 30 fe ff ff       	jmp    0xfffffffffffffe38
   8:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
   f:	fc ff df 
  12:	4c 89 fa             	mov    %r15,%rdx
  15:	48                   	rex.W
[  561.596341][ T5669] RSP: 0018:ffffc9000bc47080 EFLAGS: 00010246
[  561.596724][ T5669] RAX: 0000000000000000 RBX: ffff8880173da000 RCX: 0000000000000001
[  561.597183][ T5669] RDX: 0000000000000000 RSI: ffffffff93510751 RDI: ffffffff92c58280
[  561.597635][ T5669] RBP: ffffc9000bc47168 R08: 0000000000000000 R09: 0000000000000000
[  561.598094][ T5669] R10: ffffc9000bc47198 R11: ffffffff93f8d1e0 R12: 1ffff92001788e14
[  561.598556][ T5669] R13: 00000000000005dc R14: ffffc9000bc47198 R15: ffff8880173daf48
[  561.599027][ T5669] FS:  00007f51612db800(0000) GS:ffff8880d7519000(0000) knlGS:0000000000000000
[  561.599673][ T5669] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  561.600065][ T5669] CR2: 00007f51614c6ba0 CR3: 0000000012492006 CR4: 0000000000772ef0
[  561.600532][ T5669] PKRU: 55555554
[  561.600760][ T5669] Call Trace:
[  561.600996][ T5669]  <TASK>
[ 561.601154][ T5669] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 561.601459][ T5669] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 561.601789][ T5669] netif_set_mtu (net/core/dev.c:9652) 
[ 561.602100][ T5669] ? __pfx_netif_set_mtu (net/core/dev.c:9647) 
[ 561.602418][ T5669] dev_set_mtu (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:47 net/core/dev_api.c:249) 
[ 561.602649][ T5669] br_mtu_auto_adjust (net/bridge/br_if.c:525) 
[ 561.602984][ T5669] br_add_if (net/bridge/br_if.c:697) 
[ 561.603226][ T5669] do_set_master (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:41 net/core/rtnetlink.c:2949) 
[ 561.603526][ T5669] ? rtnl_configure_link (net/core/rtnetlink.c:3592) 
[ 561.603829][ T5669] rtnl_newlink_create (net/core/rtnetlink.c:3840) 
[ 561.604144][ T5669] ? __pfx_rtnl_newlink_create (net/core/rtnetlink.c:3791) 
[ 561.604445][ T5669] ? __dev_get_by_name (net/core/dev.c:865) 
[ 561.604747][ T5669] ? rtnl_dev_get (net/core/rtnetlink.c:3404) 
[ 561.605061][ T5669] ? __pfx_rtnl_dev_get (net/core/rtnetlink.c:3404) 
[ 561.605368][ T5669] ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4056) 
[ 561.605670][ T5669] ? reacquire_held_locks (kernel/locking/lockdep.c:5388) 
[ 561.605984][ T5669] __rtnl_newlink (net/core/rtnetlink.c:3942) 
[ 561.606297][ T5669] rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4058) 
[ 561.606605][ T5669] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 561.606919][ T5669] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/rtnetlink.c:6944) 
[ 561.607236][ T5669] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 561.607553][ T5669] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 561.607855][ T5669] rtnetlink_rcv_msg (net/core/rtnetlink.c:6946) 
[ 561.608169][ T5669] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 561.608475][ T5669] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 561.608781][ T5669] netlink_rcv_skb (net/netlink/af_netlink.c:2551) 
[ 561.609089][ T5669] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 561.609392][ T5669] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2528) 
[ 561.609711][ T5669] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/netlink/af_netlink.c:340) 
[ 561.610020][ T5669] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 ./include/net/netns/generic.h:48 net/netlink/af_netlink.c:333) 
[ 561.610323][ T5669] netlink_unicast (net/netlink/af_netlink.c:1321 net/netlink/af_netlink.c:1346) 
[ 561.610628][ T5669] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1331) 
[ 561.610930][ T5669] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 561.611255][ T5669] netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 561.611584][ T5669] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1815) 
[ 561.611907][ T5669] ? __import_iovec (lib/iov_iter.c:1441 lib/iov_iter.c:1456) 
[ 561.612227][ T5669] ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 561.612532][ T5669] ? __pfx_____sys_sendmsg (net/socket.c:2560) 
[ 561.612833][ T5669] ? __pfx_copy_msghdr_from_user (net/socket.c:2540) 
[ 561.613231][ T5669] ___sys_sendmsg (net/socket.c:2670) 
[ 561.613535][ T5669] ? __pfx____sys_sendmsg (net/socket.c:2657) 
[ 561.613841][ T5669] ? rcu_read_lock_any_held (kernel/rcu/update.c:386 kernel/rcu/update.c:380) 
[ 561.614163][ T5669] ? rcu_read_lock_any_held (kernel/rcu/update.c:386 kernel/rcu/update.c:380) 
[ 561.614465][ T5669] ? validate_chain (kernel/locking/lockdep.c:3804 kernel/locking/lockdep.c:3824 kernel/locking/lockdep.c:3879) 
[ 561.614770][ T5669] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 561.615101][ T5669] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 561.615411][ T5669] __sys_sendmsg (net/socket.c:2700) 
[ 561.615735][ T5669] ? __pfx___sys_sendmsg (net/socket.c:2685) 
[ 561.616064][ T5669] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 561.616370][ T5669] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 561.616680][ T5669] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[  561.617065][ T5669] RIP: 0033:0x7f51614a81e7
[ 561.617380][ T5669] Code: 0e 00 f7 d8 64 89 02 48 c7 c0 ff ff ff ff eb b9 0f 1f 00 f3 0f 1e fa 64 8b 04 25 18 00 00 00 85 c0 75 10 b8 2e 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 51 c3 48 83 ec 28 89 54 24 1c 48 89 74 24 10
All code
========
   0:	0e                   	(bad)
   1:	00 f7                	add    %dh,%bh
   3:	d8 64 89 02          	fsubs  0x2(%rcx,%rcx,4)
   7:	48 c7 c0 ff ff ff ff 	mov    $0xffffffffffffffff,%rax
   e:	eb b9                	jmp    0xffffffffffffffc9
  10:	0f 1f 00             	nopl   (%rax)
  13:	f3 0f 1e fa          	endbr64
  17:	64 8b 04 25 18 00 00 	mov    %fs:0x18,%eax
  1e:	00 
  1f:	85 c0                	test   %eax,%eax
  21:	75 10                	jne    0x33
  23:	b8 2e 00 00 00       	mov    $0x2e,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 00 f0 ff ff    	cmp    $0xfffffffffffff000,%rax		<-- trapping instruction
  30:	77 51                	ja     0x83
  32:	c3                   	ret
  33:	48 83 ec 28          	sub    $0x28,%rsp
  37:	89 54 24 1c          	mov    %edx,0x1c(%rsp)
  3b:	48 89 74 24 10       	mov    %rsi,0x10(%rsp)

Code starting with the faulting instruction
===========================================
   0:	48 3d 00 f0 ff ff    	cmp    $0xfffffffffffff000,%rax
   6:	77 51                	ja     0x59
   8:	c3                   	ret
   9:	48 83 ec 28          	sub    $0x28,%rsp
   d:	89 54 24 1c          	mov    %edx,0x1c(%rsp)
  11:	48 89 74 24 10       	mov    %rsi,0x10(%rsp)
[  561.618466][ T5669] RSP: 002b:00007fff1c45c6f8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[  561.618931][ T5669] RAX: ffffffffffffffda RBX: 00007fff1c45ce30 RCX: 00007f51614a81e7
[  561.619424][ T5669] RDX: 0000000000000000 RSI: 00007fff1c45c760 RDI: 0000000000000005
[  561.619879][ T5669] RBP: 0000000000000006 R08: 0000000000000078 R09: 0000000000000000
[  561.620340][ T5669] R10: 00007f5161536ac0 R11: 0000000000000246 R12: 00007fff1c45ce68
[  561.620800][ T5669] R13: 00000000686e7a82 R14: 0000000000499600 R15: 00007fff1c45c850
| [  583.958192][ T5906] ------------[ cut here ]------------
| [ 583.958530][ T5906] WARNING: CPU: 0 PID: 5906 at ./include/net/netdev_lock.h:17 netif_set_mtu_ext (./include/net/netdev_lock.h:17 ./include/net/netdev_lock.h:15 ./include/net/netdev_lock.h:25 net/core/dev.c:9610) 
| [  583.959172][ T5906] Modules linked in: sctp act_gact cls_flower sch_ingress vxlan ip6_gre gre [last unloaded: test_bpf]
| [  583.960487][ T5906] Tainted: [W]=WARN
[  583.960729][ T5906] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 583.961145][ T5906] RIP: 0010:netif_set_mtu_ext (./include/net/netdev_lock.h:17 ./include/net/netdev_lock.h:15 ./include/net/netdev_lock.h:25 net/core/dev.c:9610) 
[ 583.961479][ T5906] Code: 00 00 8b 05 77 04 bc 02 85 c0 0f 84 52 fe ff ff 48 8d bb c0 0c 00 00 be ff ff ff ff e8 da fc 9b 00 85 c0 0f 85 39 fe ff ff 90 <0f> 0b 90 e9 30 fe ff ff 48 b8 00 00 00 00 00 fc ff df 4c 89 fa 48
All code
========
   0:	00 00                	add    %al,(%rax)
   2:	8b 05 77 04 bc 02    	mov    0x2bc0477(%rip),%eax        # 0x2bc047f
   8:	85 c0                	test   %eax,%eax
   a:	0f 84 52 fe ff ff    	je     0xfffffffffffffe62
  10:	48 8d bb c0 0c 00 00 	lea    0xcc0(%rbx),%rdi
  17:	be ff ff ff ff       	mov    $0xffffffff,%esi
  1c:	e8 da fc 9b 00       	call   0x9bfcfb
  21:	85 c0                	test   %eax,%eax
  23:	0f 85 39 fe ff ff    	jne    0xfffffffffffffe62
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	e9 30 fe ff ff       	jmp    0xfffffffffffffe62
  32:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
  39:	fc ff df 
  3c:	4c 89 fa             	mov    %r15,%rdx
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	e9 30 fe ff ff       	jmp    0xfffffffffffffe38
   8:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
   f:	fc ff df 
  12:	4c 89 fa             	mov    %r15,%rdx
  15:	48                   	rex.W
[  583.962624][ T5906] RSP: 0018:ffffc9000c287080 EFLAGS: 00010246
[  583.963062][ T5906] RAX: 0000000000000000 RBX: ffff88800ef32000 RCX: 0000000000000001
[  583.963544][ T5906] RDX: 0000000000000000 RSI: ffffffff93510751 RDI: ffffffff92c58280
[  583.964029][ T5906] RBP: ffffc9000c287168 R08: 0000000000000000 R09: 0000000000000000
[  583.964502][ T5906] R10: ffffc9000c287198 R11: ffffffff93f8d1e0 R12: 1ffff92001850e14
[  583.964991][ T5906] R13: 00000000000005dc R14: ffffc9000c287198 R15: ffff88800ef32f48
[  583.965466][ T5906] FS:  00007f6357190800(0000) GS:ffff8880d7399000(0000) knlGS:0000000000000000
[  583.966037][ T5906] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  583.966465][ T5906] CR2: 00007f6357290130 CR3: 000000000f4b7003 CR4: 0000000000772ef0
[  583.966957][ T5906] PKRU: 55555554
[  583.967198][ T5906] Call Trace:
[  583.967435][ T5906]  <TASK>
[ 583.967600][ T5906] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 583.967925][ T5906] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 583.968265][ T5906] netif_set_mtu (net/core/dev.c:9652) 
[ 583.968588][ T5906] ? __pfx_netif_set_mtu (net/core/dev.c:9647) 
[ 583.968920][ T5906] dev_set_mtu (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:47 net/core/dev_api.c:249) 
[ 583.969183][ T5906] br_mtu_auto_adjust (net/bridge/br_if.c:525) 
[ 583.969508][ T5906] br_add_if (net/bridge/br_if.c:697) 
[ 583.969760][ T5906] do_set_master (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:41 net/core/rtnetlink.c:2949) 
[ 583.970086][ T5906] ? rtnl_configure_link (net/core/rtnetlink.c:3592) 
[ 583.970415][ T5906] rtnl_newlink_create (net/core/rtnetlink.c:3840) 
[ 583.970735][ T5906] ? __pfx_rtnl_newlink_create (net/core/rtnetlink.c:3791) 
[ 583.971079][ T5906] ? __dev_get_by_name (net/core/dev.c:865) 
[ 583.971398][ T5906] ? rtnl_dev_get (net/core/rtnetlink.c:3404) 
[ 583.971721][ T5906] ? __pfx_rtnl_dev_get (net/core/rtnetlink.c:3404) 
[ 583.972056][ T5906] ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4056) 
[ 583.972374][ T5906] ? reacquire_held_locks (kernel/locking/lockdep.c:5388) 
[ 583.972704][ T5906] __rtnl_newlink (net/core/rtnetlink.c:3942) 
[ 583.973048][ T5906] rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4058) 
[ 583.973376][ T5906] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 583.973706][ T5906] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/rtnetlink.c:6944) 
[ 583.974038][ T5906] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 583.974357][ T5906] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 583.974678][ T5906] rtnetlink_rcv_msg (net/core/rtnetlink.c:6946) 
[ 583.975006][ T5906] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 583.975335][ T5906] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 583.975662][ T5906] netlink_rcv_skb (net/netlink/af_netlink.c:2551) 
[ 583.975996][ T5906] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 583.976322][ T5906] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2528) 
[ 583.976652][ T5906] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/netlink/af_netlink.c:340) 
[ 583.976986][ T5906] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 ./include/net/netns/generic.h:48 net/netlink/af_netlink.c:333) 
[ 583.977309][ T5906] netlink_unicast (net/netlink/af_netlink.c:1321 net/netlink/af_netlink.c:1346) 
[ 583.977635][ T5906] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1331) 
[ 583.977962][ T5906] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 583.978285][ T5906] netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 583.978607][ T5906] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1815) 
[ 583.978926][ T5906] ? __import_iovec (lib/iov_iter.c:1441 lib/iov_iter.c:1456) 
[ 583.979258][ T5906] ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 583.979579][ T5906] ? __pfx_____sys_sendmsg (net/socket.c:2560) 
[ 583.979901][ T5906] ? __pfx_copy_msghdr_from_user (net/socket.c:2540) 
[ 583.980315][ T5906] ___sys_sendmsg (net/socket.c:2670) 
[ 583.980637][ T5906] ? __pfx____sys_sendmsg (net/socket.c:2657) 
[ 583.980971][ T5906] ? __pfx_handle_pte_fault (mm/memory.c:6026) 
[ 583.981294][ T5906] ? reacquire_held_locks (kernel/locking/lockdep.c:5388) 
[ 583.981609][ T5906] ? do_user_addr_fault (arch/x86/mm/fault.c:1327) 
[ 583.981947][ T5906] ? __handle_mm_fault (mm/memory.c:6212) 
[ 583.982273][ T5906] ? __pfx___handle_mm_fault (mm/memory.c:6121) 
[ 583.982586][ T5906] ? lock_vma_under_rcu (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 mm/mmap_lock.c:171) 
[ 583.982926][ T5906] __sys_sendmsg (net/socket.c:2700) 
[ 583.983252][ T5906] ? __pfx___sys_sendmsg (net/socket.c:2685) 
[ 583.983573][ T5906] ? exc_page_fault (./arch/x86/include/asm/irqflags.h:26 ./arch/x86/include/asm/irqflags.h:109 ./arch/x86/include/asm/irqflags.h:151 arch/x86/mm/fault.c:1484 arch/x86/mm/fault.c:1532) 
[ 583.983900][ T5906] ? do_user_addr_fault (./arch/x86/include/asm/atomic.h:93 ./include/linux/atomic/atomic-arch-fallback.h:949 ./include/linux/atomic/atomic-instrumented.h:401 ./include/linux/refcount.h:389 ./include/linux/refcount.h:432 ./include/linux/mmap_lock.h:142 ./include/linux/mmap_lock.h:237 arch/x86/mm/fault.c:1338) 
[ 583.984233][ T5906] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 583.984552][ T5906] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 583.984871][ T5906] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[  583.985280][ T5906] RIP: 0033:0x7f635735d1e7
[ 583.985626][ T5906] Code: 0e 00 f7 d8 64 89 02 48 c7 c0 ff ff ff ff eb b9 0f 1f 00 f3 0f 1e fa 64 8b 04 25 18 00 00 00 85 c0 75 10 b8 2e 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 51 c3 48 83 ec 28 89 54 24 1c 48 89 74 24 10
All code
========
   0:	0e                   	(bad)
   1:	00 f7                	add    %dh,%bh
   3:	d8 64 89 02          	fsubs  0x2(%rcx,%rcx,4)
   7:	48 c7 c0 ff ff ff ff 	mov    $0xffffffffffffffff,%rax
   e:	eb b9                	jmp    0xffffffffffffffc9
  10:	0f 1f 00             	nopl   (%rax)
  13:	f3 0f 1e fa          	endbr64
  17:	64 8b 04 25 18 00 00 	mov    %fs:0x18,%eax
  1e:	00 
  1f:	85 c0                	test   %eax,%eax
  21:	75 10                	jne    0x33
  23:	b8 2e 00 00 00       	mov    $0x2e,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 00 f0 ff ff    	cmp    $0xfffffffffffff000,%rax		<-- trapping instruction
  30:	77 51                	ja     0x83
  32:	c3                   	ret
  33:	48 83 ec 28          	sub    $0x28,%rsp
  37:	89 54 24 1c          	mov    %edx,0x1c(%rsp)
  3b:	48 89 74 24 10       	mov    %rsi,0x10(%rsp)

Code starting with the faulting instruction
===========================================
   0:	48 3d 00 f0 ff ff    	cmp    $0xfffffffffffff000,%rax
   6:	77 51                	ja     0x59
   8:	c3                   	ret
   9:	48 83 ec 28          	sub    $0x28,%rsp
   d:	89 54 24 1c          	mov    %edx,0x1c(%rsp)
  11:	48 89 74 24 10       	mov    %rsi,0x10(%rsp)
[  583.986768][ T5906] RSP: 002b:00007fffbe859248 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[  583.987252][ T5906] RAX: ffffffffffffffda RBX: 00007fffbe859980 RCX: 00007f635735d1e7
[  583.987728][ T5906] RDX: 0000000000000000 RSI: 00007fffbe8592b0 RDI: 0000000000000005
[  583.988208][ T5906] RBP: 0000000000000006 R08: 000000000000006c R09: 0000000000000000
[  583.988694][ T5906] R10: 00007f63573ebac0 R11: 0000000000000246 R12: 00007fffbe8599b8
[  583.989184][ T5906] R13: 00000000686e7a98 R14: 0000000000499600 R15: 00007fffbe8593a0
| [  587.915385][ T5936] ------------[ cut here ]------------
| [ 587.915713][ T5936] WARNING: CPU: 2 PID: 5936 at ./include/net/netdev_lock.h:17 netif_set_mtu_ext (./include/net/netdev_lock.h:17 ./include/net/netdev_lock.h:15 ./include/net/netdev_lock.h:25 net/core/dev.c:9610) 
| [  587.917008][ T5936] Modules linked in: sctp act_gact cls_flower sch_ingress vxlan ip6_gre gre [last unloaded: test_bpf]
| [  587.918280][ T5936] Tainted: [W]=WARN
[  587.918521][ T5936] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 587.918912][ T5936] RIP: 0010:netif_set_mtu_ext (./include/net/netdev_lock.h:17 ./include/net/netdev_lock.h:15 ./include/net/netdev_lock.h:25 net/core/dev.c:9610) 
[ 587.919262][ T5936] Code: 00 00 8b 05 77 04 bc 02 85 c0 0f 84 52 fe ff ff 48 8d bb c0 0c 00 00 be ff ff ff ff e8 da fc 9b 00 85 c0 0f 85 39 fe ff ff 90 <0f> 0b 90 e9 30 fe ff ff 48 b8 00 00 00 00 00 fc ff df 4c 89 fa 48
All code
========
   0:	00 00                	add    %al,(%rax)
   2:	8b 05 77 04 bc 02    	mov    0x2bc0477(%rip),%eax        # 0x2bc047f
   8:	85 c0                	test   %eax,%eax
   a:	0f 84 52 fe ff ff    	je     0xfffffffffffffe62
  10:	48 8d bb c0 0c 00 00 	lea    0xcc0(%rbx),%rdi
  17:	be ff ff ff ff       	mov    $0xffffffff,%esi
  1c:	e8 da fc 9b 00       	call   0x9bfcfb
  21:	85 c0                	test   %eax,%eax
  23:	0f 85 39 fe ff ff    	jne    0xfffffffffffffe62
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	e9 30 fe ff ff       	jmp    0xfffffffffffffe62
  32:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
  39:	fc ff df 
  3c:	4c 89 fa             	mov    %r15,%rdx
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	e9 30 fe ff ff       	jmp    0xfffffffffffffe38
   8:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
   f:	fc ff df 
  12:	4c 89 fa             	mov    %r15,%rdx
  15:	48                   	rex.W
[  587.920401][ T5936] RSP: 0018:ffffc9000c3d7080 EFLAGS: 00010246
[  587.920798][ T5936] RAX: 0000000000000000 RBX: ffff8880051aa000 RCX: 0000000000000001
[  587.921273][ T5936] RDX: 0000000000000000 RSI: ffffffff93510751 RDI: ffffffff92c58280
[  587.921745][ T5936] RBP: ffffc9000c3d7168 R08: 0000000000000000 R09: 0000000000000000
[  587.922228][ T5936] R10: ffffc9000c3d7198 R11: ffffffff93f8d1e0 R12: 1ffff9200187ae14
[  587.922692][ T5936] R13: 00000000000005dc R14: ffffc9000c3d7198 R15: ffff8880051aaf48
[  587.923196][ T5936] FS:  00007f7e921dd800(0000) GS:ffff8880d7499000(0000) knlGS:0000000000000000
[  587.924045][ T5936] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  587.924649][ T5936] CR2: 000000000043d940 CR3: 00000000171a4004 CR4: 0000000000772ef0
[  587.925478][ T5936] PKRU: 55555554
[  587.925839][ T5936] Call Trace:
[  587.926217][ T5936]  <TASK>
[ 587.926472][ T5936] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 587.926963][ T5936] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 587.927464][ T5936] netif_set_mtu (net/core/dev.c:9652) 
[ 587.927956][ T5936] ? __pfx_netif_set_mtu (net/core/dev.c:9647) 
[ 587.928480][ T5936] dev_set_mtu (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:47 net/core/dev_api.c:249) 
[ 587.928850][ T5936] br_mtu_auto_adjust (net/bridge/br_if.c:525) 
[ 587.929263][ T5936] br_add_if (net/bridge/br_if.c:697) 
[ 587.929521][ T5936] do_set_master (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:41 net/core/rtnetlink.c:2949) 
[ 587.929838][ T5936] ? rtnl_configure_link (net/core/rtnetlink.c:3592) 
[ 587.930170][ T5936] rtnl_newlink_create (net/core/rtnetlink.c:3840) 
[ 587.930496][ T5936] ? __pfx_rtnl_newlink_create (net/core/rtnetlink.c:3791) 
[ 587.930816][ T5936] ? __dev_get_by_name (net/core/dev.c:865) 
[ 587.931145][ T5936] ? rtnl_dev_get (net/core/rtnetlink.c:3404) 
[ 587.931465][ T5936] ? __pfx_rtnl_dev_get (net/core/rtnetlink.c:3404) 
[ 587.931804][ T5936] ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4056) 
[ 587.932148][ T5936] ? reacquire_held_locks (kernel/locking/lockdep.c:5388) 
[ 587.932503][ T5936] __rtnl_newlink (net/core/rtnetlink.c:3942) 
[ 587.932830][ T5936] rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4058) 
[ 587.933165][ T5936] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 587.933499][ T5936] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/rtnetlink.c:6944) 
[ 587.933812][ T5936] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 587.934140][ T5936] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 587.934453][ T5936] rtnetlink_rcv_msg (net/core/rtnetlink.c:6946) 
[ 587.934768][ T5936] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 587.935096][ T5936] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 587.935417][ T5936] netlink_rcv_skb (net/netlink/af_netlink.c:2551) 
[ 587.935727][ T5936] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 587.936078][ T5936] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2528) 
[ 587.936432][ T5936] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/netlink/af_netlink.c:340) 
[ 587.936748][ T5936] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 ./include/net/netns/generic.h:48 net/netlink/af_netlink.c:333) 
[ 587.937079][ T5936] netlink_unicast (net/netlink/af_netlink.c:1321 net/netlink/af_netlink.c:1346) 
[ 587.937400][ T5936] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1331) 
[ 587.937712][ T5936] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 587.938044][ T5936] netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 587.938368][ T5936] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1815) 
[ 587.938685][ T5936] ? __import_iovec (lib/iov_iter.c:1441 lib/iov_iter.c:1456) 
[ 587.939030][ T5936] ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 587.939355][ T5936] ? __pfx_____sys_sendmsg (net/socket.c:2560) 
[ 587.939667][ T5936] ? __pfx_copy_msghdr_from_user (net/socket.c:2540) 
[ 587.940100][ T5936] ___sys_sendmsg (net/socket.c:2670) 
[ 587.940436][ T5936] ? __pfx____sys_sendmsg (net/socket.c:2657) 
[ 587.940761][ T5936] ? __pfx_handle_pte_fault (mm/memory.c:6026) 
[ 587.941092][ T5936] ? reacquire_held_locks (kernel/locking/lockdep.c:5388) 
[ 587.941408][ T5936] ? do_user_addr_fault (arch/x86/mm/fault.c:1327) 
[ 587.941736][ T5936] ? __handle_mm_fault (mm/memory.c:6212) 
[ 587.942069][ T5936] ? __pfx___handle_mm_fault (mm/memory.c:6121) 
[ 587.942380][ T5936] ? lock_vma_under_rcu (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 mm/mmap_lock.c:171) 
[ 587.942723][ T5936] __sys_sendmsg (net/socket.c:2700) 
[ 587.943049][ T5936] ? __pfx___sys_sendmsg (net/socket.c:2685) 
[ 587.943366][ T5936] ? exc_page_fault (./arch/x86/include/asm/irqflags.h:26 ./arch/x86/include/asm/irqflags.h:109 ./arch/x86/include/asm/irqflags.h:151 arch/x86/mm/fault.c:1484 arch/x86/mm/fault.c:1532) 
[ 587.943685][ T5936] ? do_user_addr_fault (./arch/x86/include/asm/atomic.h:93 ./include/linux/atomic/atomic-arch-fallback.h:949 ./include/linux/atomic/atomic-instrumented.h:401 ./include/linux/refcount.h:389 ./include/linux/refcount.h:432 ./include/linux/mmap_lock.h:142 ./include/linux/mmap_lock.h:237 arch/x86/mm/fault.c:1338) 
[ 587.944030][ T5936] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 587.944377][ T5936] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 587.944695][ T5936] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[  587.945101][ T5936] RIP: 0033:0x7f7e923aa1e7
[ 587.945429][ T5936] Code: 0e 00 f7 d8 64 89 02 48 c7 c0 ff ff ff ff eb b9 0f 1f 00 f3 0f 1e fa 64 8b 04 25 18 00 00 00 85 c0 75 10 b8 2e 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 51 c3 48 83 ec 28 89 54 24 1c 48 89 74 24 10
All code
========
   0:	0e                   	(bad)
   1:	00 f7                	add    %dh,%bh
   3:	d8 64 89 02          	fsubs  0x2(%rcx,%rcx,4)
   7:	48 c7 c0 ff ff ff ff 	mov    $0xffffffffffffffff,%rax
   e:	eb b9                	jmp    0xffffffffffffffc9
  10:	0f 1f 00             	nopl   (%rax)
  13:	f3 0f 1e fa          	endbr64
  17:	64 8b 04 25 18 00 00 	mov    %fs:0x18,%eax
  1e:	00 
  1f:	85 c0                	test   %eax,%eax
  21:	75 10                	jne    0x33
  23:	b8 2e 00 00 00       	mov    $0x2e,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 00 f0 ff ff    	cmp    $0xfffffffffffff000,%rax		<-- trapping instruction
  30:	77 51                	ja     0x83
  32:	c3                   	ret
  33:	48 83 ec 28          	sub    $0x28,%rsp
  37:	89 54 24 1c          	mov    %edx,0x1c(%rsp)
  3b:	48 89 74 24 10       	mov    %rsi,0x10(%rsp)

Code starting with the faulting instruction
===========================================
   0:	48 3d 00 f0 ff ff    	cmp    $0xfffffffffffff000,%rax
   6:	77 51                	ja     0x59
   8:	c3                   	ret
   9:	48 83 ec 28          	sub    $0x28,%rsp
   d:	89 54 24 1c          	mov    %edx,0x1c(%rsp)
  11:	48 89 74 24 10       	mov    %rsi,0x10(%rsp)
[  587.946523][ T5936] RSP: 002b:00007ffe6c4016f8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[  587.946999][ T5936] RAX: ffffffffffffffda RBX: 00007ffe6c401e30 RCX: 00007f7e923aa1e7
[  587.947469][ T5936] RDX: 0000000000000000 RSI: 00007ffe6c401760 RDI: 0000000000000005
[  587.947934][ T5936] RBP: 0000000000000006 R08: 000000000000006c R09: 0000000000000000
[  587.948452][ T5936] R10: 00007f7e92438ac0 R11: 0000000000000246 R12: 00007ffe6c401e68
[  587.948917][ T5936] R13: 00000000686e7a9c R14: 0000000000499600 R15: 00007ffe6c401850
| [  594.754104][ T6001] ------------[ cut here ]------------
| [ 594.754431][ T6001] WARNING: CPU: 2 PID: 6001 at ./include/net/netdev_lock.h:17 netif_set_mtu_ext (./include/net/netdev_lock.h:17 ./include/net/netdev_lock.h:15 ./include/net/netdev_lock.h:25 net/core/dev.c:9610) 
| [  594.755058][ T6001] Modules linked in: sctp act_gact cls_flower sch_ingress vxlan ip6_gre gre [last unloaded: test_bpf]
| [  594.756338][ T6001] Tainted: [W]=WARN
[  594.756585][ T6001] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 594.756986][ T6001] RIP: 0010:netif_set_mtu_ext (./include/net/netdev_lock.h:17 ./include/net/netdev_lock.h:15 ./include/net/netdev_lock.h:25 net/core/dev.c:9610) 
[ 594.757316][ T6001] Code: 00 00 8b 05 77 04 bc 02 85 c0 0f 84 52 fe ff ff 48 8d bb c0 0c 00 00 be ff ff ff ff e8 da fc 9b 00 85 c0 0f 85 39 fe ff ff 90 <0f> 0b 90 e9 30 fe ff ff 48 b8 00 00 00 00 00 fc ff df 4c 89 fa 48
All code
========
   0:	00 00                	add    %al,(%rax)
   2:	8b 05 77 04 bc 02    	mov    0x2bc0477(%rip),%eax        # 0x2bc047f
   8:	85 c0                	test   %eax,%eax
   a:	0f 84 52 fe ff ff    	je     0xfffffffffffffe62
  10:	48 8d bb c0 0c 00 00 	lea    0xcc0(%rbx),%rdi
  17:	be ff ff ff ff       	mov    $0xffffffff,%esi
  1c:	e8 da fc 9b 00       	call   0x9bfcfb
  21:	85 c0                	test   %eax,%eax
  23:	0f 85 39 fe ff ff    	jne    0xfffffffffffffe62
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	e9 30 fe ff ff       	jmp    0xfffffffffffffe62
  32:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
  39:	fc ff df 
  3c:	4c 89 fa             	mov    %r15,%rdx
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	e9 30 fe ff ff       	jmp    0xfffffffffffffe38
   8:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
   f:	fc ff df 
  12:	4c 89 fa             	mov    %r15,%rdx
  15:	48                   	rex.W
[  594.758411][ T6001] RSP: 0018:ffffc9000c597080 EFLAGS: 00010246
[  594.758807][ T6001] RAX: 0000000000000000 RBX: ffff8880172ca000 RCX: 0000000000000001
[  594.759286][ T6001] RDX: 0000000000000000 RSI: ffffffff93510751 RDI: ffffffff92c58280
[  594.759747][ T6001] RBP: ffffc9000c597168 R08: 0000000000000000 R09: 0000000000000000
[  594.760232][ T6001] R10: ffffc9000c597198 R11: ffffffff93f8d1e0 R12: 1ffff920018b2e14
[  594.760702][ T6001] R13: 00000000000005dc R14: ffffc9000c597198 R15: ffff8880172caf48
[  594.761181][ T6001] FS:  00007f5449743800(0000) GS:ffff8880d7499000(0000) knlGS:0000000000000000
[  594.761729][ T6001] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  594.762133][ T6001] CR2: 00007f544992eba0 CR3: 0000000005393004 CR4: 0000000000772ef0
[  594.762599][ T6001] PKRU: 55555554
[  594.762840][ T6001] Call Trace:
[  594.763088][ T6001]  <TASK>
[ 594.763256][ T6001] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 594.763580][ T6001] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 594.763907][ T6001] netif_set_mtu (net/core/dev.c:9652) 
[ 594.764242][ T6001] ? __pfx_netif_set_mtu (net/core/dev.c:9647) 
[ 594.764574][ T6001] dev_set_mtu (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:47 net/core/dev_api.c:249) 
[ 594.764818][ T6001] br_mtu_auto_adjust (net/bridge/br_if.c:525) 
[ 594.765147][ T6001] br_add_if (net/bridge/br_if.c:697) 
[ 594.765401][ T6001] do_set_master (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:41 net/core/rtnetlink.c:2949) 
[ 594.765711][ T6001] ? rtnl_configure_link (net/core/rtnetlink.c:3592) 
[ 594.766045][ T6001] rtnl_newlink_create (net/core/rtnetlink.c:3840) 
[ 594.766363][ T6001] ? __pfx_rtnl_newlink_create (net/core/rtnetlink.c:3791) 
[ 594.766677][ T6001] ? __dev_get_by_name (net/core/dev.c:865) 
[ 594.767003][ T6001] ? rtnl_dev_get (net/core/rtnetlink.c:3404) 
[ 594.767317][ T6001] ? __pfx_rtnl_dev_get (net/core/rtnetlink.c:3404) 
[ 594.767645][ T6001] ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4056) 
[ 594.767976][ T6001] ? reacquire_held_locks (kernel/locking/lockdep.c:5388) 
[ 594.768310][ T6001] __rtnl_newlink (net/core/rtnetlink.c:3942) 
[ 594.768632][ T6001] rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4058) 
[ 594.768963][ T6001] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 594.769289][ T6001] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/rtnetlink.c:6944) 
[ 594.769602][ T6001] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 594.769917][ T6001] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 594.770242][ T6001] rtnetlink_rcv_msg (net/core/rtnetlink.c:6946) 
[ 594.770559][ T6001] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 594.770885][ T6001] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 594.771217][ T6001] netlink_rcv_skb (net/netlink/af_netlink.c:2551) 
[ 594.771533][ T6001] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 594.771855][ T6001] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2528) 
[ 594.772203][ T6001] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/netlink/af_netlink.c:340) 
[ 594.772517][ T6001] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 ./include/net/netns/generic.h:48 net/netlink/af_netlink.c:333) 
[ 594.772841][ T6001] netlink_unicast (net/netlink/af_netlink.c:1321 net/netlink/af_netlink.c:1346) 
[ 594.773168][ T6001] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1331) 
[ 594.773484][ T6001] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 594.773802][ T6001] netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 594.774131][ T6001] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1815) 
[ 594.774446][ T6001] ? __import_iovec (lib/iov_iter.c:1441 lib/iov_iter.c:1456) 
[ 594.774768][ T6001] ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 594.775096][ T6001] ? __pfx_____sys_sendmsg (net/socket.c:2560) 
[ 594.775415][ T6001] ? __pfx_copy_msghdr_from_user (net/socket.c:2540) 
[ 594.775814][ T6001] ___sys_sendmsg (net/socket.c:2670) 
[ 594.776151][ T6001] ? __pfx____sys_sendmsg (net/socket.c:2657) 
[ 594.776476][ T6001] ? rcu_read_lock_any_held (kernel/rcu/update.c:386 kernel/rcu/update.c:380) 
[ 594.776796][ T6001] ? rcu_read_lock_any_held (kernel/rcu/update.c:386 kernel/rcu/update.c:380) 
[ 594.777118][ T6001] ? validate_chain (kernel/locking/lockdep.c:3804 kernel/locking/lockdep.c:3824 kernel/locking/lockdep.c:3879) 
[ 594.777443][ T6001] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 594.777771][ T6001] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 594.778103][ T6001] __sys_sendmsg (net/socket.c:2700) 
[ 594.778416][ T6001] ? __pfx___sys_sendmsg (net/socket.c:2685) 
[ 594.778744][ T6001] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 594.779076][ T6001] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 594.779397][ T6001] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[  594.779780][ T6001] RIP: 0033:0x7f54499101e7
[ 594.780130][ T6001] Code: 0e 00 f7 d8 64 89 02 48 c7 c0 ff ff ff ff eb b9 0f 1f 00 f3 0f 1e fa 64 8b 04 25 18 00 00 00 85 c0 75 10 b8 2e 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 51 c3 48 83 ec 28 89 54 24 1c 48 89 74 24 10
All code
========
   0:	0e                   	(bad)
   1:	00 f7                	add    %dh,%bh
   3:	d8 64 89 02          	fsubs  0x2(%rcx,%rcx,4)
   7:	48 c7 c0 ff ff ff ff 	mov    $0xffffffffffffffff,%rax
   e:	eb b9                	jmp    0xffffffffffffffc9
  10:	0f 1f 00             	nopl   (%rax)
  13:	f3 0f 1e fa          	endbr64
  17:	64 8b 04 25 18 00 00 	mov    %fs:0x18,%eax
  1e:	00 
  1f:	85 c0                	test   %eax,%eax
  21:	75 10                	jne    0x33
  23:	b8 2e 00 00 00       	mov    $0x2e,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 00 f0 ff ff    	cmp    $0xfffffffffffff000,%rax		<-- trapping instruction
  30:	77 51                	ja     0x83
  32:	c3                   	ret
  33:	48 83 ec 28          	sub    $0x28,%rsp
  37:	89 54 24 1c          	mov    %edx,0x1c(%rsp)
  3b:	48 89 74 24 10       	mov    %rsi,0x10(%rsp)

Code starting with the faulting instruction
===========================================
   0:	48 3d 00 f0 ff ff    	cmp    $0xfffffffffffff000,%rax
   6:	77 51                	ja     0x59
   8:	c3                   	ret
   9:	48 83 ec 28          	sub    $0x28,%rsp
   d:	89 54 24 1c          	mov    %edx,0x1c(%rsp)
  11:	48 89 74 24 10       	mov    %rsi,0x10(%rsp)
[  594.781229][ T6001] RSP: 002b:00007ffdb0adc8d8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[  594.781694][ T6001] RAX: ffffffffffffffda RBX: 00007ffdb0add010 RCX: 00007f54499101e7
[  594.782185][ T6001] RDX: 0000000000000000 RSI: 00007ffdb0adc940 RDI: 0000000000000005
[  594.782649][ T6001] RBP: 0000000000000006 R08: 0000000000000078 R09: 0000000000000000
[  594.783119][ T6001] R10: 00007f544999eac0 R11: 0000000000000246 R12: 00007ffdb0add048
[  594.783584][ T6001] R13: 00000000686e7aa3 R14: 0000000000499600 R15: 00007ffdb0adca30
| [  598.649416][ T6031] ------------[ cut here ]------------
| [ 598.649773][ T6031] WARNING: CPU: 2 PID: 6031 at ./include/net/netdev_lock.h:17 netif_set_mtu_ext (./include/net/netdev_lock.h:17 ./include/net/netdev_lock.h:15 ./include/net/netdev_lock.h:25 net/core/dev.c:9610) 
| [  598.650424][ T6031] Modules linked in: sctp act_gact cls_flower sch_ingress vxlan ip6_gre gre [last unloaded: test_bpf]
| [  598.653153][ T6031] Tainted: [W]=WARN
[  598.653407][ T6031] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 598.653821][ T6031] RIP: 0010:netif_set_mtu_ext (./include/net/netdev_lock.h:17 ./include/net/netdev_lock.h:15 ./include/net/netdev_lock.h:25 net/core/dev.c:9610) 
[ 598.654183][ T6031] Code: 00 00 8b 05 77 04 bc 02 85 c0 0f 84 52 fe ff ff 48 8d bb c0 0c 00 00 be ff ff ff ff e8 da fc 9b 00 85 c0 0f 85 39 fe ff ff 90 <0f> 0b 90 e9 30 fe ff ff 48 b8 00 00 00 00 00 fc ff df 4c 89 fa 48
All code
========
   0:	00 00                	add    %al,(%rax)
   2:	8b 05 77 04 bc 02    	mov    0x2bc0477(%rip),%eax        # 0x2bc047f
   8:	85 c0                	test   %eax,%eax
   a:	0f 84 52 fe ff ff    	je     0xfffffffffffffe62
  10:	48 8d bb c0 0c 00 00 	lea    0xcc0(%rbx),%rdi
  17:	be ff ff ff ff       	mov    $0xffffffff,%esi
  1c:	e8 da fc 9b 00       	call   0x9bfcfb
  21:	85 c0                	test   %eax,%eax
  23:	0f 85 39 fe ff ff    	jne    0xfffffffffffffe62
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	e9 30 fe ff ff       	jmp    0xfffffffffffffe62
  32:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
  39:	fc ff df 
  3c:	4c 89 fa             	mov    %r15,%rdx
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	e9 30 fe ff ff       	jmp    0xfffffffffffffe38
   8:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
   f:	fc ff df 
  12:	4c 89 fa             	mov    %r15,%rdx
  15:	48                   	rex.W
[  598.655412][ T6031] RSP: 0018:ffffc9000c7c7080 EFLAGS: 00010246
[  598.655840][ T6031] RAX: 0000000000000000 RBX: ffff88800ee92000 RCX: 0000000000000001
[  598.656348][ T6031] RDX: 0000000000000000 RSI: ffffffff93510751 RDI: ffffffff92c58280
[  598.656835][ T6031] RBP: ffffc9000c7c7168 R08: 0000000000000000 R09: 0000000000000000
[  598.657335][ T6031] R10: ffffc9000c7c7198 R11: ffffffff93f8d1e0 R12: 1ffff920018f8e14
[  598.657819][ T6031] R13: 00000000000005dc R14: ffffc9000c7c7198 R15: ffff88800ee92f48
[  598.658315][ T6031] FS:  00007f122d0e1800(0000) GS:ffff8880d7499000(0000) knlGS:0000000000000000
[  598.658888][ T6031] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  598.659313][ T6031] CR2: 00007f122d1e1130 CR3: 000000000a96d006 CR4: 0000000000772ef0
[  598.659804][ T6031] PKRU: 55555554
[  598.660064][ T6031] Call Trace:
[  598.660313][ T6031]  <TASK>
[ 598.660489][ T6031] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 598.660828][ T6031] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 598.661182][ T6031] netif_set_mtu (net/core/dev.c:9652) 
[ 598.661564][ T6031] ? __pfx_netif_set_mtu (net/core/dev.c:9647) 
[ 598.661922][ T6031] dev_set_mtu (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:47 net/core/dev_api.c:249) 
[ 598.662193][ T6031] br_mtu_auto_adjust (net/bridge/br_if.c:525) 
[ 598.662532][ T6031] br_add_if (net/bridge/br_if.c:697) 
[ 598.662796][ T6031] do_set_master (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:41 net/core/rtnetlink.c:2949) 
[ 598.663147][ T6031] ? rtnl_configure_link (net/core/rtnetlink.c:3592) 
[ 598.663492][ T6031] rtnl_newlink_create (net/core/rtnetlink.c:3840) 
[ 598.663829][ T6031] ? __pfx_rtnl_newlink_create (net/core/rtnetlink.c:3791) 
[ 598.664171][ T6031] ? __dev_get_by_name (net/core/dev.c:865) 
[ 598.664505][ T6031] ? rtnl_dev_get (net/core/rtnetlink.c:3404) 
[ 598.664834][ T6031] ? __pfx_rtnl_dev_get (net/core/rtnetlink.c:3404) 
[ 598.665183][ T6031] ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4056) 
[ 598.665509][ T6031] ? reacquire_held_locks (kernel/locking/lockdep.c:5388) 
[ 598.665855][ T6031] __rtnl_newlink (net/core/rtnetlink.c:3942) 
[ 598.666209][ T6031] rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4058) 
[ 598.666549][ T6031] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 598.666893][ T6031] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/rtnetlink.c:6944) 
[ 598.667244][ T6031] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 598.667580][ T6031] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 598.667913][ T6031] rtnetlink_rcv_msg (net/core/rtnetlink.c:6946) 
[ 598.668295][ T6031] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 598.668648][ T6031] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 598.668999][ T6031] netlink_rcv_skb (net/netlink/af_netlink.c:2551) 
[ 598.669332][ T6031] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 598.669659][ T6031] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2528) 
[ 598.670008][ T6031] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/netlink/af_netlink.c:340) 
[ 598.670337][ T6031] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 ./include/net/netns/generic.h:48 net/netlink/af_netlink.c:333) 
[ 598.670671][ T6031] netlink_unicast (net/netlink/af_netlink.c:1321 net/netlink/af_netlink.c:1346) 
[ 598.671030][ T6031] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1331) 
[ 598.671360][ T6031] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 598.671696][ T6031] netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 598.672049][ T6031] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1815) 
[ 598.672376][ T6031] ? __import_iovec (lib/iov_iter.c:1441 lib/iov_iter.c:1456) 
[ 598.672710][ T6031] ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 598.673047][ T6031] ? __pfx_____sys_sendmsg (net/socket.c:2560) 
[ 598.673381][ T6031] ? __pfx_copy_msghdr_from_user (net/socket.c:2540) 
[ 598.673796][ T6031] ___sys_sendmsg (net/socket.c:2670) 
[ 598.674162][ T6031] ? __pfx____sys_sendmsg (net/socket.c:2657) 
[ 598.674496][ T6031] ? __pfx_handle_pte_fault (mm/memory.c:6026) 
[ 598.674831][ T6031] ? reacquire_held_locks (kernel/locking/lockdep.c:5388) 
[ 598.675171][ T6031] ? do_user_addr_fault (arch/x86/mm/fault.c:1327) 
[ 598.675507][ T6031] ? __handle_mm_fault (mm/memory.c:6212) 
[ 598.675843][ T6031] ? __pfx___handle_mm_fault (mm/memory.c:6121) 
[ 598.676182][ T6031] ? lock_vma_under_rcu (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 mm/mmap_lock.c:171) 
[ 598.676534][ T6031] __sys_sendmsg (net/socket.c:2700) 
[ 598.676865][ T6031] ? __pfx___sys_sendmsg (net/socket.c:2685) 
[ 598.677204][ T6031] ? exc_page_fault (./arch/x86/include/asm/irqflags.h:26 ./arch/x86/include/asm/irqflags.h:109 ./arch/x86/include/asm/irqflags.h:151 arch/x86/mm/fault.c:1484 arch/x86/mm/fault.c:1532) 
[ 598.677542][ T6031] ? do_user_addr_fault (./arch/x86/include/asm/atomic.h:93 ./include/linux/atomic/atomic-arch-fallback.h:949 ./include/linux/atomic/atomic-instrumented.h:401 ./include/linux/refcount.h:389 ./include/linux/refcount.h:432 ./include/linux/mmap_lock.h:142 ./include/linux/mmap_lock.h:237 arch/x86/mm/fault.c:1338) 
[ 598.677878][ T6031] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 598.678223][ T6031] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 598.678553][ T6031] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[  598.678982][ T6031] RIP: 0033:0x7f122d2ae1e7
[ 598.679327][ T6031] Code: 0e 00 f7 d8 64 89 02 48 c7 c0 ff ff ff ff eb b9 0f 1f 00 f3 0f 1e fa 64 8b 04 25 18 00 00 00 85 c0 75 10 b8 2e 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 51 c3 48 83 ec 28 89 54 24 1c 48 89 74 24 10
All code
========
   0:	0e                   	(bad)
   1:	00 f7                	add    %dh,%bh
   3:	d8 64 89 02          	fsubs  0x2(%rcx,%rcx,4)
   7:	48 c7 c0 ff ff ff ff 	mov    $0xffffffffffffffff,%rax
   e:	eb b9                	jmp    0xffffffffffffffc9
  10:	0f 1f 00             	nopl   (%rax)
  13:	f3 0f 1e fa          	endbr64
  17:	64 8b 04 25 18 00 00 	mov    %fs:0x18,%eax
  1e:	00 
  1f:	85 c0                	test   %eax,%eax
  21:	75 10                	jne    0x33
  23:	b8 2e 00 00 00       	mov    $0x2e,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 00 f0 ff ff    	cmp    $0xfffffffffffff000,%rax		<-- trapping instruction
  30:	77 51                	ja     0x83
  32:	c3                   	ret
  33:	48 83 ec 28          	sub    $0x28,%rsp
  37:	89 54 24 1c          	mov    %edx,0x1c(%rsp)
  3b:	48 89 74 24 10       	mov    %rsi,0x10(%rsp)

Code starting with the faulting instruction
===========================================
   0:	48 3d 00 f0 ff ff    	cmp    $0xfffffffffffff000,%rax
   6:	77 51                	ja     0x59
   8:	c3                   	ret
   9:	48 83 ec 28          	sub    $0x28,%rsp
   d:	89 54 24 1c          	mov    %edx,0x1c(%rsp)
  11:	48 89 74 24 10       	mov    %rsi,0x10(%rsp)
[  598.680489][ T6031] RSP: 002b:00007ffc0e4d4d58 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[  598.681045][ T6031] RAX: ffffffffffffffda RBX: 00007ffc0e4d5490 RCX: 00007f122d2ae1e7
[  598.681538][ T6031] RDX: 0000000000000000 RSI: 00007ffc0e4d4dc0 RDI: 0000000000000005
[  598.682052][ T6031] RBP: 0000000000000006 R08: 0000000000000078 R09: 0000000000000000
[  598.682549][ T6031] R10: 00007f122d33cac0 R11: 0000000000000246 R12: 00007ffc0e4d54c8
[  598.683061][ T6031] R13: 00000000686e7aa7 R14: 0000000000499600 R15: 00007ffc0e4d4eb0
| [  622.033676][ T6268] ------------[ cut here ]------------
| [ 622.034044][ T6268] WARNING: CPU: 1 PID: 6268 at ./include/net/netdev_lock.h:17 netif_set_mtu_ext (./include/net/netdev_lock.h:17 ./include/net/netdev_lock.h:15 ./include/net/netdev_lock.h:25 net/core/dev.c:9610) 
| [  622.034692][ T6268] Modules linked in: sctp act_gact cls_flower sch_ingress vxlan ip6_gre gre [last unloaded: test_bpf]
| [  622.036075][ T6268] Tainted: [W]=WARN
[  622.036317][ T6268] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 622.036727][ T6268] RIP: 0010:netif_set_mtu_ext (./include/net/netdev_lock.h:17 ./include/net/netdev_lock.h:15 ./include/net/netdev_lock.h:25 net/core/dev.c:9610) 
[ 622.037063][ T6268] Code: 00 00 8b 05 77 04 bc 02 85 c0 0f 84 52 fe ff ff 48 8d bb c0 0c 00 00 be ff ff ff ff e8 da fc 9b 00 85 c0 0f 85 39 fe ff ff 90 <0f> 0b 90 e9 30 fe ff ff 48 b8 00 00 00 00 00 fc ff df 4c 89 fa 48
All code
========
   0:	00 00                	add    %al,(%rax)
   2:	8b 05 77 04 bc 02    	mov    0x2bc0477(%rip),%eax        # 0x2bc047f
   8:	85 c0                	test   %eax,%eax
   a:	0f 84 52 fe ff ff    	je     0xfffffffffffffe62
  10:	48 8d bb c0 0c 00 00 	lea    0xcc0(%rbx),%rdi
  17:	be ff ff ff ff       	mov    $0xffffffff,%esi
  1c:	e8 da fc 9b 00       	call   0x9bfcfb
  21:	85 c0                	test   %eax,%eax
  23:	0f 85 39 fe ff ff    	jne    0xfffffffffffffe62
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	e9 30 fe ff ff       	jmp    0xfffffffffffffe62
  32:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
  39:	fc ff df 
  3c:	4c 89 fa             	mov    %r15,%rdx
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	e9 30 fe ff ff       	jmp    0xfffffffffffffe38
   8:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
   f:	fc ff df 
  12:	4c 89 fa             	mov    %r15,%rdx
  15:	48                   	rex.W
[  622.038209][ T6268] RSP: 0018:ffffc9000ce07080 EFLAGS: 00010246
[  622.038614][ T6268] RAX: 0000000000000000 RBX: ffff888012152000 RCX: 0000000000000001
[  622.039118][ T6268] RDX: 0000000000000000 RSI: ffffffff93510751 RDI: ffffffff92c58280
[  622.039599][ T6268] RBP: ffffc9000ce07168 R08: 0000000000000000 R09: 0000000000000000
[  622.040087][ T6268] R10: ffffc9000ce07198 R11: ffffffff93f8d1e0 R12: 1ffff920019c0e14
[  622.040614][ T6268] R13: 00000000000005dc R14: ffffc9000ce07198 R15: ffff888012152f48
[  622.041101][ T6268] FS:  00007f7a140a8800(0000) GS:ffff8880d7419000(0000) knlGS:0000000000000000
[  622.041709][ T6268] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  622.042159][ T6268] CR2: 000000000043d940 CR3: 0000000015b5e003 CR4: 0000000000772ef0
[  622.042647][ T6268] PKRU: 55555554
[  622.042885][ T6268] Call Trace:
[  622.043147][ T6268]  <TASK>
[ 622.043324][ T6268] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 622.043646][ T6268] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 622.043991][ T6268] netif_set_mtu (net/core/dev.c:9652) 
[ 622.044316][ T6268] ? __pfx_netif_set_mtu (net/core/dev.c:9647) 
[ 622.044648][ T6268] dev_set_mtu (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:47 net/core/dev_api.c:249) 
[ 622.044926][ T6268] br_mtu_auto_adjust (net/bridge/br_if.c:525) 
[ 622.045258][ T6268] br_add_if (net/bridge/br_if.c:697) 
[ 622.045507][ T6268] do_set_master (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:41 net/core/rtnetlink.c:2949) 
[ 622.045828][ T6268] ? rtnl_configure_link (net/core/rtnetlink.c:3592) 
[ 622.046154][ T6268] rtnl_newlink_create (net/core/rtnetlink.c:3840) 
[ 622.046470][ T6268] ? __pfx_rtnl_newlink_create (net/core/rtnetlink.c:3791) 
[ 622.046783][ T6268] ? __dev_get_by_name (net/core/dev.c:865) 
[ 622.047133][ T6268] ? rtnl_dev_get (net/core/rtnetlink.c:3404) 
[ 622.047448][ T6268] ? __pfx_rtnl_dev_get (net/core/rtnetlink.c:3404) 
[ 622.047822][ T6268] ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4056) 
[ 622.048151][ T6268] ? reacquire_held_locks (kernel/locking/lockdep.c:5388) 
[ 622.048473][ T6268] __rtnl_newlink (net/core/rtnetlink.c:3942) 
[ 622.048797][ T6268] rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4058) 
[ 622.049131][ T6268] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 622.049456][ T6268] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/rtnetlink.c:6944) 
[ 622.049780][ T6268] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 622.050107][ T6268] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 622.050430][ T6268] rtnetlink_rcv_msg (net/core/rtnetlink.c:6946) 
[ 622.050746][ T6268] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 622.051089][ T6268] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 622.051409][ T6268] netlink_rcv_skb (net/netlink/af_netlink.c:2551) 
[ 622.051724][ T6268] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 622.052074][ T6268] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2528) 
[ 622.052416][ T6268] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/netlink/af_netlink.c:340) 
[ 622.052733][ T6268] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 ./include/net/netns/generic.h:48 net/netlink/af_netlink.c:333) 
[ 622.053061][ T6268] netlink_unicast (net/netlink/af_netlink.c:1321 net/netlink/af_netlink.c:1346) 
[ 622.053385][ T6268] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1331) 
[ 622.053702][ T6268] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 622.054036][ T6268] netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 622.054358][ T6268] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1815) 
[ 622.054682][ T6268] ? __import_iovec (lib/iov_iter.c:1441 lib/iov_iter.c:1456) 
[ 622.055036][ T6268] ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 622.055399][ T6268] ? __pfx_____sys_sendmsg (net/socket.c:2560) 
[ 622.055712][ T6268] ? __pfx_copy_msghdr_from_user (net/socket.c:2540) 
[ 622.056125][ T6268] ___sys_sendmsg (net/socket.c:2670) 
[ 622.056442][ T6268] ? __pfx____sys_sendmsg (net/socket.c:2657) 
[ 622.056756][ T6268] ? __pfx_handle_pte_fault (mm/memory.c:6026) 
[ 622.057091][ T6268] ? reacquire_held_locks (kernel/locking/lockdep.c:5388) 
[ 622.057404][ T6268] ? do_user_addr_fault (arch/x86/mm/fault.c:1327) 
[ 622.057721][ T6268] ? __handle_mm_fault (mm/memory.c:6212) 
[ 622.058044][ T6268] ? __pfx___handle_mm_fault (mm/memory.c:6121) 
[ 622.058358][ T6268] ? lock_vma_under_rcu (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 mm/mmap_lock.c:171) 
[ 622.058690][ T6268] __sys_sendmsg (net/socket.c:2700) 
[ 622.059034][ T6268] ? __pfx___sys_sendmsg (net/socket.c:2685) 
[ 622.059353][ T6268] ? exc_page_fault (./arch/x86/include/asm/irqflags.h:26 ./arch/x86/include/asm/irqflags.h:109 ./arch/x86/include/asm/irqflags.h:151 arch/x86/mm/fault.c:1484 arch/x86/mm/fault.c:1532) 
[ 622.059672][ T6268] ? do_user_addr_fault (./arch/x86/include/asm/atomic.h:93 ./include/linux/atomic/atomic-arch-fallback.h:949 ./include/linux/atomic/atomic-instrumented.h:401 ./include/linux/refcount.h:389 ./include/linux/refcount.h:432 ./include/linux/mmap_lock.h:142 ./include/linux/mmap_lock.h:237 arch/x86/mm/fault.c:1338) 
[ 622.059996][ T6268] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 622.060313][ T6268] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 622.060626][ T6268] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[  622.061023][ T6268] RIP: 0033:0x7f7a142751e7
[ 622.061351][ T6268] Code: 0e 00 f7 d8 64 89 02 48 c7 c0 ff ff ff ff eb b9 0f 1f 00 f3 0f 1e fa 64 8b 04 25 18 00 00 00 85 c0 75 10 b8 2e 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 51 c3 48 83 ec 28 89 54 24 1c 48 89 74 24 10
All code
========
   0:	0e                   	(bad)
   1:	00 f7                	add    %dh,%bh
   3:	d8 64 89 02          	fsubs  0x2(%rcx,%rcx,4)
   7:	48 c7 c0 ff ff ff ff 	mov    $0xffffffffffffffff,%rax
   e:	eb b9                	jmp    0xffffffffffffffc9
  10:	0f 1f 00             	nopl   (%rax)
  13:	f3 0f 1e fa          	endbr64
  17:	64 8b 04 25 18 00 00 	mov    %fs:0x18,%eax
  1e:	00 
  1f:	85 c0                	test   %eax,%eax
  21:	75 10                	jne    0x33
  23:	b8 2e 00 00 00       	mov    $0x2e,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 00 f0 ff ff    	cmp    $0xfffffffffffff000,%rax		<-- trapping instruction
  30:	77 51                	ja     0x83
  32:	c3                   	ret
  33:	48 83 ec 28          	sub    $0x28,%rsp
  37:	89 54 24 1c          	mov    %edx,0x1c(%rsp)
  3b:	48 89 74 24 10       	mov    %rsi,0x10(%rsp)

Code starting with the faulting instruction
===========================================
   0:	48 3d 00 f0 ff ff    	cmp    $0xfffffffffffff000,%rax
   6:	77 51                	ja     0x59
   8:	c3                   	ret
   9:	48 83 ec 28          	sub    $0x28,%rsp
   d:	89 54 24 1c          	mov    %edx,0x1c(%rsp)
  11:	48 89 74 24 10       	mov    %rsi,0x10(%rsp)
[  622.062499][ T6268] RSP: 002b:00007ffe42da87e8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[  622.062996][ T6268] RAX: ffffffffffffffda RBX: 00007ffe42da8f20 RCX: 00007f7a142751e7
[  622.063479][ T6268] RDX: 0000000000000000 RSI: 00007ffe42da8850 RDI: 0000000000000005
[  622.063957][ T6268] RBP: 0000000000000006 R08: 000000000000006c R09: 0000000000000000
[  622.064429][ T6268] R10: 00007f7a14303ac0 R11: 0000000000000246 R12: 00007ffe42da8f58
[  622.064896][ T6268] R13: 00000000686e7abe R14: 0000000000499600 R15: 00007ffe42da8940
| [  626.828877][ T6298] ------------[ cut here ]------------
| [ 626.829244][ T6298] WARNING: CPU: 2 PID: 6298 at ./include/net/netdev_lock.h:17 netif_set_mtu_ext (./include/net/netdev_lock.h:17 ./include/net/netdev_lock.h:15 ./include/net/netdev_lock.h:25 net/core/dev.c:9610) 
| [  626.830005][ T6298] Modules linked in: sctp act_gact cls_flower sch_ingress vxlan ip6_gre gre [last unloaded: test_bpf]
| [  626.831464][ T6298] Tainted: [W]=WARN
[  626.831754][ T6298] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 626.832221][ T6298] RIP: 0010:netif_set_mtu_ext (./include/net/netdev_lock.h:17 ./include/net/netdev_lock.h:15 ./include/net/netdev_lock.h:25 net/core/dev.c:9610) 
[ 626.832607][ T6298] Code: 00 00 8b 05 77 04 bc 02 85 c0 0f 84 52 fe ff ff 48 8d bb c0 0c 00 00 be ff ff ff ff e8 da fc 9b 00 85 c0 0f 85 39 fe ff ff 90 <0f> 0b 90 e9 30 fe ff ff 48 b8 00 00 00 00 00 fc ff df 4c 89 fa 48
All code
========
   0:	00 00                	add    %al,(%rax)
   2:	8b 05 77 04 bc 02    	mov    0x2bc0477(%rip),%eax        # 0x2bc047f
   8:	85 c0                	test   %eax,%eax
   a:	0f 84 52 fe ff ff    	je     0xfffffffffffffe62
  10:	48 8d bb c0 0c 00 00 	lea    0xcc0(%rbx),%rdi
  17:	be ff ff ff ff       	mov    $0xffffffff,%esi
  1c:	e8 da fc 9b 00       	call   0x9bfcfb
  21:	85 c0                	test   %eax,%eax
  23:	0f 85 39 fe ff ff    	jne    0xfffffffffffffe62
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	e9 30 fe ff ff       	jmp    0xfffffffffffffe62
  32:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
  39:	fc ff df 
  3c:	4c 89 fa             	mov    %r15,%rdx
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	e9 30 fe ff ff       	jmp    0xfffffffffffffe38
   8:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
   f:	fc ff df 
  12:	4c 89 fa             	mov    %r15,%rdx
  15:	48                   	rex.W
[  626.833868][ T6298] RSP: 0018:ffffc9000cf07080 EFLAGS: 00010246
[  626.834343][ T6298] RAX: 0000000000000000 RBX: ffff8880172ca000 RCX: 0000000000000001
[  626.834893][ T6298] RDX: 0000000000000000 RSI: ffffffff93510751 RDI: ffffffff92c58280
[  626.835449][ T6298] RBP: ffffc9000cf07168 R08: 0000000000000000 R09: 0000000000000000
[  626.835992][ T6298] R10: ffffc9000cf07198 R11: ffffffff93f8d1e0 R12: 1ffff920019e0e14
[  626.836466][ T6298] R13: 00000000000005dc R14: ffffc9000cf07198 R15: ffff8880172caf48
[  626.836959][ T6298] FS:  00007f2b1860d800(0000) GS:ffff8880d7499000(0000) knlGS:0000000000000000
[  626.837518][ T6298] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  626.837923][ T6298] CR2: 00007fa73a114000 CR3: 000000000b625003 CR4: 0000000000772ef0
[  626.838409][ T6298] PKRU: 55555554
[  626.838655][ T6298] Call Trace:
[  626.838899][ T6298]  <TASK>
[ 626.839120][ T6298] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 626.839455][ T6298] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 626.839792][ T6298] netif_set_mtu (net/core/dev.c:9652) 
[ 626.840133][ T6298] ? __pfx_netif_set_mtu (net/core/dev.c:9647) 
[ 626.840470][ T6298] dev_set_mtu (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:47 net/core/dev_api.c:249) 
[ 626.840714][ T6298] br_mtu_auto_adjust (net/bridge/br_if.c:525) 
[ 626.841052][ T6298] br_add_if (net/bridge/br_if.c:697) 
[ 626.841305][ T6298] do_set_master (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:41 net/core/rtnetlink.c:2949) 
[ 626.841631][ T6298] ? rtnl_configure_link (net/core/rtnetlink.c:3592) 
[ 626.841989][ T6298] rtnl_newlink_create (net/core/rtnetlink.c:3840) 
[ 626.842314][ T6298] ? __pfx_rtnl_newlink_create (net/core/rtnetlink.c:3791) 
[ 626.842629][ T6298] ? __dev_get_by_name (net/core/dev.c:865) 
[ 626.842981][ T6298] ? rtnl_dev_get (net/core/rtnetlink.c:3404) 
[ 626.843340][ T6298] ? __pfx_rtnl_dev_get (net/core/rtnetlink.c:3404) 
[ 626.843664][ T6298] ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4056) 
[ 626.843993][ T6298] ? reacquire_held_locks (kernel/locking/lockdep.c:5388) 
[ 626.844327][ T6298] __rtnl_newlink (net/core/rtnetlink.c:3942) 
[ 626.844660][ T6298] rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4058) 
[ 626.844998][ T6298] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 626.845332][ T6298] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/rtnetlink.c:6944) 
[ 626.845646][ T6298] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 626.845979][ T6298] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 626.846295][ T6298] rtnetlink_rcv_msg (net/core/rtnetlink.c:6946) 
[ 626.846623][ T6298] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 626.846977][ T6298] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 626.847339][ T6298] netlink_rcv_skb (net/netlink/af_netlink.c:2551) 
[ 626.847658][ T6298] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 626.847993][ T6298] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2528) 
[ 626.848319][ T6298] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/netlink/af_netlink.c:340) 
[ 626.848636][ T6298] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 ./include/net/netns/generic.h:48 net/netlink/af_netlink.c:333) 
[ 626.848977][ T6298] netlink_unicast (net/netlink/af_netlink.c:1321 net/netlink/af_netlink.c:1346) 
[ 626.849370][ T6298] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1331) 
[ 626.849732][ T6298] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 626.850116][ T6298] netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 626.850494][ T6298] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1815) 
[ 626.850862][ T6298] ? __import_iovec (lib/iov_iter.c:1441 lib/iov_iter.c:1456) 
[ 626.851271][ T6298] ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 626.851683][ T6298] ? __pfx_____sys_sendmsg (net/socket.c:2560) 
[ 626.852078][ T6298] ? __pfx_copy_msghdr_from_user (net/socket.c:2540) 
[ 626.852535][ T6298] ___sys_sendmsg (net/socket.c:2670) 
[ 626.852894][ T6298] ? __pfx____sys_sendmsg (net/socket.c:2657) 
[ 626.853268][ T6298] ? __pfx_handle_pte_fault (mm/memory.c:6026) 
[ 626.853630][ T6298] ? reacquire_held_locks (kernel/locking/lockdep.c:5388) 
[ 626.854003][ T6298] ? do_user_addr_fault (arch/x86/mm/fault.c:1327) 
[ 626.854374][ T6298] ? __handle_mm_fault (mm/memory.c:6212) 
[ 626.854731][ T6298] ? __pfx___handle_mm_fault (mm/memory.c:6121) 
[ 626.855118][ T6298] ? lock_vma_under_rcu (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 mm/mmap_lock.c:171) 
[ 626.855537][ T6298] __sys_sendmsg (net/socket.c:2700) 
[ 626.855900][ T6298] ? __pfx___sys_sendmsg (net/socket.c:2685) 
[ 626.856273][ T6298] ? exc_page_fault (./arch/x86/include/asm/irqflags.h:26 ./arch/x86/include/asm/irqflags.h:109 ./arch/x86/include/asm/irqflags.h:151 arch/x86/mm/fault.c:1484 arch/x86/mm/fault.c:1532) 
[ 626.856639][ T6298] ? do_user_addr_fault (./arch/x86/include/asm/atomic.h:93 ./include/linux/atomic/atomic-arch-fallback.h:949 ./include/linux/atomic/atomic-instrumented.h:401 ./include/linux/refcount.h:389 ./include/linux/refcount.h:432 ./include/linux/mmap_lock.h:142 ./include/linux/mmap_lock.h:237 arch/x86/mm/fault.c:1338) 
[ 626.857023][ T6298] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 626.857387][ T6298] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 626.857750][ T6298] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[  626.858203][ T6298] RIP: 0033:0x7f2b187da1e7
[ 626.858574][ T6298] Code: 0e 00 f7 d8 64 89 02 48 c7 c0 ff ff ff ff eb b9 0f 1f 00 f3 0f 1e fa 64 8b 04 25 18 00 00 00 85 c0 75 10 b8 2e 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 51 c3 48 83 ec 28 89 54 24 1c 48 89 74 24 10
All code
========
   0:	0e                   	(bad)
   1:	00 f7                	add    %dh,%bh
   3:	d8 64 89 02          	fsubs  0x2(%rcx,%rcx,4)
   7:	48 c7 c0 ff ff ff ff 	mov    $0xffffffffffffffff,%rax
   e:	eb b9                	jmp    0xffffffffffffffc9
  10:	0f 1f 00             	nopl   (%rax)
  13:	f3 0f 1e fa          	endbr64
  17:	64 8b 04 25 18 00 00 	mov    %fs:0x18,%eax
  1e:	00 
  1f:	85 c0                	test   %eax,%eax
  21:	75 10                	jne    0x33
  23:	b8 2e 00 00 00       	mov    $0x2e,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 00 f0 ff ff    	cmp    $0xfffffffffffff000,%rax		<-- trapping instruction
  30:	77 51                	ja     0x83
  32:	c3                   	ret
  33:	48 83 ec 28          	sub    $0x28,%rsp
  37:	89 54 24 1c          	mov    %edx,0x1c(%rsp)
  3b:	48 89 74 24 10       	mov    %rsi,0x10(%rsp)

Code starting with the faulting instruction
===========================================
   0:	48 3d 00 f0 ff ff    	cmp    $0xfffffffffffff000,%rax
   6:	77 51                	ja     0x59
   8:	c3                   	ret
   9:	48 83 ec 28          	sub    $0x28,%rsp
   d:	89 54 24 1c          	mov    %edx,0x1c(%rsp)
  11:	48 89 74 24 10       	mov    %rsi,0x10(%rsp)
[  626.859842][ T6298] RSP: 002b:00007ffeaf4f56e8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[  626.860434][ T6298] RAX: ffffffffffffffda RBX: 00007ffeaf4f5e20 RCX: 00007f2b187da1e7
[  626.860977][ T6298] RDX: 0000000000000000 RSI: 00007ffeaf4f5750 RDI: 0000000000000005
[  626.861506][ T6298] RBP: 0000000000000006 R08: 000000000000006c R09: 0000000000000000
[  626.862072][ T6298] R10: 00007f2b18868ac0 R11: 0000000000000246 R12: 00007ffeaf4f5e58
[  626.862599][ T6298] R13: 00000000686e7ac3 R14: 0000000000499600 R15: 00007ffeaf4f5840
| [  636.138222][ T6363] ------------[ cut here ]------------
| [ 636.138575][ T6363] WARNING: CPU: 1 PID: 6363 at ./include/net/netdev_lock.h:17 netif_set_mtu_ext (./include/net/netdev_lock.h:17 ./include/net/netdev_lock.h:15 ./include/net/netdev_lock.h:25 net/core/dev.c:9610) 
| [  636.139211][ T6363] Modules linked in: sctp act_gact cls_flower sch_ingress vxlan ip6_gre gre [last unloaded: test_bpf]
| [  636.140556][ T6363] Tainted: [W]=WARN
[  636.140798][ T6363] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 636.142160][ T6363] RIP: 0010:netif_set_mtu_ext (./include/net/netdev_lock.h:17 ./include/net/netdev_lock.h:15 ./include/net/netdev_lock.h:25 net/core/dev.c:9610) 
[ 636.142509][ T6363] Code: 00 00 8b 05 77 04 bc 02 85 c0 0f 84 52 fe ff ff 48 8d bb c0 0c 00 00 be ff ff ff ff e8 da fc 9b 00 85 c0 0f 85 39 fe ff ff 90 <0f> 0b 90 e9 30 fe ff ff 48 b8 00 00 00 00 00 fc ff df 4c 89 fa 48
All code
========
   0:	00 00                	add    %al,(%rax)
   2:	8b 05 77 04 bc 02    	mov    0x2bc0477(%rip),%eax        # 0x2bc047f
   8:	85 c0                	test   %eax,%eax
   a:	0f 84 52 fe ff ff    	je     0xfffffffffffffe62
  10:	48 8d bb c0 0c 00 00 	lea    0xcc0(%rbx),%rdi
  17:	be ff ff ff ff       	mov    $0xffffffff,%esi
  1c:	e8 da fc 9b 00       	call   0x9bfcfb
  21:	85 c0                	test   %eax,%eax
  23:	0f 85 39 fe ff ff    	jne    0xfffffffffffffe62
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	e9 30 fe ff ff       	jmp    0xfffffffffffffe62
  32:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
  39:	fc ff df 
  3c:	4c 89 fa             	mov    %r15,%rdx
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	e9 30 fe ff ff       	jmp    0xfffffffffffffe38
   8:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
   f:	fc ff df 
  12:	4c 89 fa             	mov    %r15,%rdx
  15:	48                   	rex.W
[  636.143663][ T6363] RSP: 0018:ffffc9000d0a7080 EFLAGS: 00010246
[  636.144089][ T6363] RAX: 0000000000000000 RBX: ffff8880177ea000 RCX: 0000000000000001
[  636.144561][ T6363] RDX: 0000000000000000 RSI: ffffffff93510751 RDI: ffffffff92c58280
[  636.145043][ T6363] RBP: ffffc9000d0a7168 R08: 0000000000000000 R09: 0000000000000000
[  636.145522][ T6363] R10: ffffc9000d0a7198 R11: ffffffff93f8d1e0 R12: 1ffff92001a14e14
[  636.146001][ T6363] R13: 00000000000005dc R14: ffffc9000d0a7198 R15: ffff8880177eaf48
[  636.146474][ T6363] FS:  00007f20522f7800(0000) GS:ffff8880d7419000(0000) knlGS:0000000000000000
[  636.147032][ T6363] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  636.147435][ T6363] CR2: 00007f20524e2ba0 CR3: 00000000138cc004 CR4: 0000000000772ef0
[  636.147912][ T6363] PKRU: 55555554
[  636.148171][ T6363] Call Trace:
[  636.148411][ T6363]  <TASK>
[ 636.148575][ T6363] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 636.148892][ T6363] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 636.149230][ T6363] netif_set_mtu (net/core/dev.c:9652) 
[ 636.149562][ T6363] ? __pfx_netif_set_mtu (net/core/dev.c:9647) 
[ 636.149897][ T6363] dev_set_mtu (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:47 net/core/dev_api.c:249) 
[ 636.150149][ T6363] br_mtu_auto_adjust (net/bridge/br_if.c:525) 
[ 636.150475][ T6363] br_add_if (net/bridge/br_if.c:697) 
[ 636.150724][ T6363] do_set_master (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:41 net/core/rtnetlink.c:2949) 
[ 636.151047][ T6363] ? rtnl_configure_link (net/core/rtnetlink.c:3592) 
[ 636.151373][ T6363] rtnl_newlink_create (net/core/rtnetlink.c:3840) 
[ 636.151695][ T6363] ? __pfx_rtnl_newlink_create (net/core/rtnetlink.c:3791) 
[ 636.152052][ T6363] ? __dev_get_by_name (net/core/dev.c:865) 
[ 636.152378][ T6363] ? rtnl_dev_get (net/core/rtnetlink.c:3404) 
[ 636.152697][ T6363] ? __pfx_rtnl_dev_get (net/core/rtnetlink.c:3404) 
[ 636.153030][ T6363] ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4056) 
[ 636.153347][ T6363] ? reacquire_held_locks (kernel/locking/lockdep.c:5388) 
[ 636.153672][ T6363] __rtnl_newlink (net/core/rtnetlink.c:3942) 
[ 636.154011][ T6363] rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4058) 
[ 636.154347][ T6363] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 636.154681][ T6363] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/rtnetlink.c:6944) 
[ 636.155008][ T6363] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 636.155333][ T6363] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 636.155654][ T6363] rtnetlink_rcv_msg (net/core/rtnetlink.c:6946) 
[ 636.155996][ T6363] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 636.156322][ T6363] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 636.156646][ T6363] netlink_rcv_skb (net/netlink/af_netlink.c:2551) 
[ 636.156973][ T6363] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 636.157292][ T6363] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2528) 
[ 636.157619][ T6363] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/netlink/af_netlink.c:340) 
[ 636.157935][ T6363] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 ./include/net/netns/generic.h:48 net/netlink/af_netlink.c:333) 
[ 636.158267][ T6363] netlink_unicast (net/netlink/af_netlink.c:1321 net/netlink/af_netlink.c:1346) 
[ 636.158586][ T6363] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1331) 
[ 636.158904][ T6363] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 636.159250][ T6363] netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 636.159575][ T6363] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1815) 
[ 636.159894][ T6363] ? __import_iovec (lib/iov_iter.c:1441 lib/iov_iter.c:1456) 
[ 636.160240][ T6363] ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 636.160604][ T6363] ? __pfx_____sys_sendmsg (net/socket.c:2560) 
[ 636.160926][ T6363] ? __pfx_copy_msghdr_from_user (net/socket.c:2540) 
[ 636.161344][ T6363] ___sys_sendmsg (net/socket.c:2670) 
[ 636.161667][ T6363] ? __pfx____sys_sendmsg (net/socket.c:2657) 
[ 636.162009][ T6363] ? rcu_read_lock_any_held (kernel/rcu/update.c:386 kernel/rcu/update.c:380) 
[ 636.162332][ T6363] ? rcu_read_lock_any_held (kernel/rcu/update.c:386 kernel/rcu/update.c:380) 
[ 636.162642][ T6363] ? validate_chain (kernel/locking/lockdep.c:3804 kernel/locking/lockdep.c:3824 kernel/locking/lockdep.c:3879) 
[ 636.163001][ T6363] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 636.163340][ T6363] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 636.163663][ T6363] __sys_sendmsg (net/socket.c:2700) 
[ 636.164017][ T6363] ? __pfx___sys_sendmsg (net/socket.c:2685) 
[ 636.164357][ T6363] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 636.164678][ T6363] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 636.165006][ T6363] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[  636.165408][ T6363] RIP: 0033:0x7f20524c41e7
[ 636.165734][ T6363] Code: 0e 00 f7 d8 64 89 02 48 c7 c0 ff ff ff ff eb b9 0f 1f 00 f3 0f 1e fa 64 8b 04 25 18 00 00 00 85 c0 75 10 b8 2e 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 51 c3 48 83 ec 28 89 54 24 1c 48 89 74 24 10
All code
========
   0:	0e                   	(bad)
   1:	00 f7                	add    %dh,%bh
   3:	d8 64 89 02          	fsubs  0x2(%rcx,%rcx,4)
   7:	48 c7 c0 ff ff ff ff 	mov    $0xffffffffffffffff,%rax
   e:	eb b9                	jmp    0xffffffffffffffc9
  10:	0f 1f 00             	nopl   (%rax)
  13:	f3 0f 1e fa          	endbr64
  17:	64 8b 04 25 18 00 00 	mov    %fs:0x18,%eax
  1e:	00 
  1f:	85 c0                	test   %eax,%eax
  21:	75 10                	jne    0x33
  23:	b8 2e 00 00 00       	mov    $0x2e,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 00 f0 ff ff    	cmp    $0xfffffffffffff000,%rax		<-- trapping instruction
  30:	77 51                	ja     0x83
  32:	c3                   	ret
  33:	48 83 ec 28          	sub    $0x28,%rsp
  37:	89 54 24 1c          	mov    %edx,0x1c(%rsp)
  3b:	48 89 74 24 10       	mov    %rsi,0x10(%rsp)

Code starting with the faulting instruction
===========================================
   0:	48 3d 00 f0 ff ff    	cmp    $0xfffffffffffff000,%rax
   6:	77 51                	ja     0x59
   8:	c3                   	ret
   9:	48 83 ec 28          	sub    $0x28,%rsp
   d:	89 54 24 1c          	mov    %edx,0x1c(%rsp)
  11:	48 89 74 24 10       	mov    %rsi,0x10(%rsp)
[  636.166872][ T6363] RSP: 002b:00007ffeaed5e168 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[  636.167413][ T6363] RAX: ffffffffffffffda RBX: 00007ffeaed5e8a0 RCX: 00007f20524c41e7
[  636.167894][ T6363] RDX: 0000000000000000 RSI: 00007ffeaed5e1d0 RDI: 0000000000000005
[  636.168419][ T6363] RBP: 0000000000000006 R08: 0000000000000078 R09: 0000000000000000
[  636.168951][ T6363] R10: 00007f2052552ac0 R11: 0000000000000246 R12: 00007ffeaed5e8d8
[  636.169431][ T6363] R13: 00000000686e7acc R14: 0000000000499600 R15: 00007ffeaed5e2c0
| [  640.902721][ T6393] ------------[ cut here ]------------
| [ 640.903100][ T6393] WARNING: CPU: 2 PID: 6393 at ./include/net/netdev_lock.h:17 netif_set_mtu_ext (./include/net/netdev_lock.h:17 ./include/net/netdev_lock.h:15 ./include/net/netdev_lock.h:25 net/core/dev.c:9610) 
| [  640.903743][ T6393] Modules linked in: sctp act_gact cls_flower sch_ingress vxlan ip6_gre gre [last unloaded: test_bpf]
| [  640.905072][ T6393] Tainted: [W]=WARN
[  640.905331][ T6393] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 640.905737][ T6393] RIP: 0010:netif_set_mtu_ext (./include/net/netdev_lock.h:17 ./include/net/netdev_lock.h:15 ./include/net/netdev_lock.h:25 net/core/dev.c:9610) 
[ 640.906079][ T6393] Code: 00 00 8b 05 77 04 bc 02 85 c0 0f 84 52 fe ff ff 48 8d bb c0 0c 00 00 be ff ff ff ff e8 da fc 9b 00 85 c0 0f 85 39 fe ff ff 90 <0f> 0b 90 e9 30 fe ff ff 48 b8 00 00 00 00 00 fc ff df 4c 89 fa 48
All code
========
   0:	00 00                	add    %al,(%rax)
   2:	8b 05 77 04 bc 02    	mov    0x2bc0477(%rip),%eax        # 0x2bc047f
   8:	85 c0                	test   %eax,%eax
   a:	0f 84 52 fe ff ff    	je     0xfffffffffffffe62
  10:	48 8d bb c0 0c 00 00 	lea    0xcc0(%rbx),%rdi
  17:	be ff ff ff ff       	mov    $0xffffffff,%esi
  1c:	e8 da fc 9b 00       	call   0x9bfcfb
  21:	85 c0                	test   %eax,%eax
  23:	0f 85 39 fe ff ff    	jne    0xfffffffffffffe62
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	e9 30 fe ff ff       	jmp    0xfffffffffffffe62
  32:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
  39:	fc ff df 
  3c:	4c 89 fa             	mov    %r15,%rdx
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	e9 30 fe ff ff       	jmp    0xfffffffffffffe38
   8:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
   f:	fc ff df 
  12:	4c 89 fa             	mov    %r15,%rdx
  15:	48                   	rex.W
[  640.907193][ T6393] RSP: 0018:ffffc9000d0e7080 EFLAGS: 00010246
[  640.907594][ T6393] RAX: 0000000000000000 RBX: ffff88800daea000 RCX: 0000000000000001
[  640.908087][ T6393] RDX: 0000000000000000 RSI: ffffffff93510751 RDI: ffffffff92c58280
[  640.908558][ T6393] RBP: ffffc9000d0e7168 R08: 0000000000000000 R09: 0000000000000000
[  640.909058][ T6393] R10: ffffc9000d0e7198 R11: ffffffff93f8d1e0 R12: 1ffff92001a1ce14
[  640.909534][ T6393] R13: 00000000000005dc R14: ffffc9000d0e7198 R15: ffff88800daeaf48
[  640.910026][ T6393] FS:  00007f2f43bf6800(0000) GS:ffff8880d7499000(0000) knlGS:0000000000000000
[  640.910575][ T6393] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  640.910984][ T6393] CR2: 00007f2f43de1ba0 CR3: 000000000a2bc006 CR4: 0000000000772ef0
[  640.911458][ T6393] PKRU: 55555554
[  640.911699][ T6393] Call Trace:
[  640.911966][ T6393]  <TASK>
[ 640.912147][ T6393] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 640.912466][ T6393] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 640.912799][ T6393] netif_set_mtu (net/core/dev.c:9652) 
[ 640.913144][ T6393] ? __pfx_netif_set_mtu (net/core/dev.c:9647) 
[ 640.913483][ T6393] dev_set_mtu (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:47 net/core/dev_api.c:249) 
[ 640.913727][ T6393] br_mtu_auto_adjust (net/bridge/br_if.c:525) 
[ 640.914064][ T6393] br_add_if (net/bridge/br_if.c:697) 
[ 640.914319][ T6393] do_set_master (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:41 net/core/rtnetlink.c:2949) 
[ 640.914652][ T6393] ? rtnl_configure_link (net/core/rtnetlink.c:3592) 
[ 640.914983][ T6393] rtnl_newlink_create (net/core/rtnetlink.c:3840) 
[ 640.915308][ T6393] ? __pfx_rtnl_newlink_create (net/core/rtnetlink.c:3791) 
[ 640.915623][ T6393] ? __dev_get_by_name (net/core/dev.c:865) 
[ 640.915956][ T6393] ? rtnl_dev_get (net/core/rtnetlink.c:3404) 
[ 640.916276][ T6393] ? __pfx_rtnl_dev_get (net/core/rtnetlink.c:3404) 
[ 640.916601][ T6393] ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4056) 
[ 640.916921][ T6393] ? reacquire_held_locks (kernel/locking/lockdep.c:5388) 
[ 640.917273][ T6393] __rtnl_newlink (net/core/rtnetlink.c:3942) 
[ 640.917606][ T6393] rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4058) 
[ 640.917932][ T6393] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 640.918274][ T6393] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/rtnetlink.c:6944) 
[ 640.918592][ T6393] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 640.918912][ T6393] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 640.919244][ T6393] rtnetlink_rcv_msg (net/core/rtnetlink.c:6946) 
[ 640.919573][ T6393] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 640.919897][ T6393] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 640.920233][ T6393] netlink_rcv_skb (net/netlink/af_netlink.c:2551) 
[ 640.920553][ T6393] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 640.920873][ T6393] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2528) 
[ 640.921226][ T6393] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/netlink/af_netlink.c:340) 
[ 640.921551][ T6393] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 ./include/net/netns/generic.h:48 net/netlink/af_netlink.c:333) 
[ 640.921893][ T6393] netlink_unicast (net/netlink/af_netlink.c:1321 net/netlink/af_netlink.c:1346) 
[ 640.922225][ T6393] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1331) 
[ 640.922599][ T6393] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 640.922936][ T6393] netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 640.923284][ T6393] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1815) 
[ 640.923621][ T6393] ? __import_iovec (lib/iov_iter.c:1441 lib/iov_iter.c:1456) 
[ 640.923979][ T6393] ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 640.924327][ T6393] ? __pfx_____sys_sendmsg (net/socket.c:2560) 
[ 640.924655][ T6393] ? __pfx_copy_msghdr_from_user (net/socket.c:2540) 
[ 640.925093][ T6393] ___sys_sendmsg (net/socket.c:2670) 
[ 640.925423][ T6393] ? __pfx____sys_sendmsg (net/socket.c:2657) 
[ 640.925759][ T6393] ? rcu_read_lock_any_held (kernel/rcu/update.c:386 kernel/rcu/update.c:380) 
[ 640.926108][ T6393] ? rcu_read_lock_any_held (kernel/rcu/update.c:386 kernel/rcu/update.c:380) 
[ 640.926438][ T6393] ? validate_chain (kernel/locking/lockdep.c:3804 kernel/locking/lockdep.c:3824 kernel/locking/lockdep.c:3879) 
[ 640.926780][ T6393] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 640.927135][ T6393] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 640.927471][ T6393] __sys_sendmsg (net/socket.c:2700) 
[ 640.927804][ T6393] ? __pfx___sys_sendmsg (net/socket.c:2685) 
[ 640.928161][ T6393] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 640.928499][ T6393] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 640.928834][ T6393] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[  640.929274][ T6393] RIP: 0033:0x7f2f43dc31e7
[ 640.929621][ T6393] Code: 0e 00 f7 d8 64 89 02 48 c7 c0 ff ff ff ff eb b9 0f 1f 00 f3 0f 1e fa 64 8b 04 25 18 00 00 00 85 c0 75 10 b8 2e 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 51 c3 48 83 ec 28 89 54 24 1c 48 89 74 24 10
All code
========
   0:	0e                   	(bad)
   1:	00 f7                	add    %dh,%bh
   3:	d8 64 89 02          	fsubs  0x2(%rcx,%rcx,4)
   7:	48 c7 c0 ff ff ff ff 	mov    $0xffffffffffffffff,%rax
   e:	eb b9                	jmp    0xffffffffffffffc9
  10:	0f 1f 00             	nopl   (%rax)
  13:	f3 0f 1e fa          	endbr64
  17:	64 8b 04 25 18 00 00 	mov    %fs:0x18,%eax
  1e:	00 
  1f:	85 c0                	test   %eax,%eax
  21:	75 10                	jne    0x33
  23:	b8 2e 00 00 00       	mov    $0x2e,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 00 f0 ff ff    	cmp    $0xfffffffffffff000,%rax		<-- trapping instruction
  30:	77 51                	ja     0x83
  32:	c3                   	ret
  33:	48 83 ec 28          	sub    $0x28,%rsp
  37:	89 54 24 1c          	mov    %edx,0x1c(%rsp)
  3b:	48 89 74 24 10       	mov    %rsi,0x10(%rsp)

Code starting with the faulting instruction
===========================================
   0:	48 3d 00 f0 ff ff    	cmp    $0xfffffffffffff000,%rax
   6:	77 51                	ja     0x59
   8:	c3                   	ret
   9:	48 83 ec 28          	sub    $0x28,%rsp
   d:	89 54 24 1c          	mov    %edx,0x1c(%rsp)
  11:	48 89 74 24 10       	mov    %rsi,0x10(%rsp)
[  640.930771][ T6393] RSP: 002b:00007ffe46752198 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[  640.931272][ T6393] RAX: ffffffffffffffda RBX: 00007ffe467528d0 RCX: 00007f2f43dc31e7
[  640.931778][ T6393] RDX: 0000000000000000 RSI: 00007ffe46752200 RDI: 0000000000000005
[  640.932286][ T6393] RBP: 0000000000000006 R08: 0000000000000078 R09: 0000000000000000
[  640.932777][ T6393] R10: 00007f2f43e51ac0 R11: 0000000000000246 R12: 00007ffe46752908
[  640.933298][ T6393] R13: 00000000686e7ad1 R14: 0000000000499600 R15: 00007ffe467522f0
| [  655.842320][ T6495] ------------[ cut here ]------------
| [ 655.842658][ T6495] WARNING: CPU: 2 PID: 6495 at ./include/net/netdev_lock.h:17 netif_set_mtu_ext (./include/net/netdev_lock.h:17 ./include/net/netdev_lock.h:15 ./include/net/netdev_lock.h:25 net/core/dev.c:9610) 
| [  655.843312][ T6495] Modules linked in: sctp act_gact cls_flower sch_ingress vxlan ip6_gre gre [last unloaded: test_bpf]
| [  655.844607][ T6495] Tainted: [W]=WARN
[  655.844850][ T6495] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 655.845443][ T6495] RIP: 0010:netif_set_mtu_ext (./include/net/netdev_lock.h:17 ./include/net/netdev_lock.h:15 ./include/net/netdev_lock.h:25 net/core/dev.c:9610) 
[ 655.845779][ T6495] Code: 00 00 8b 05 77 04 bc 02 85 c0 0f 84 52 fe ff ff 48 8d bb c0 0c 00 00 be ff ff ff ff e8 da fc 9b 00 85 c0 0f 85 39 fe ff ff 90 <0f> 0b 90 e9 30 fe ff ff 48 b8 00 00 00 00 00 fc ff df 4c 89 fa 48
All code
========
   0:	00 00                	add    %al,(%rax)
   2:	8b 05 77 04 bc 02    	mov    0x2bc0477(%rip),%eax        # 0x2bc047f
   8:	85 c0                	test   %eax,%eax
   a:	0f 84 52 fe ff ff    	je     0xfffffffffffffe62
  10:	48 8d bb c0 0c 00 00 	lea    0xcc0(%rbx),%rdi
  17:	be ff ff ff ff       	mov    $0xffffffff,%esi
  1c:	e8 da fc 9b 00       	call   0x9bfcfb
  21:	85 c0                	test   %eax,%eax
  23:	0f 85 39 fe ff ff    	jne    0xfffffffffffffe62
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	e9 30 fe ff ff       	jmp    0xfffffffffffffe62
  32:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
  39:	fc ff df 
  3c:	4c 89 fa             	mov    %r15,%rdx
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	e9 30 fe ff ff       	jmp    0xfffffffffffffe38
   8:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
   f:	fc ff df 
  12:	4c 89 fa             	mov    %r15,%rdx
  15:	48                   	rex.W
[  655.846875][ T6495] RSP: 0018:ffffc9000cad7080 EFLAGS: 00010246
[  655.847278][ T6495] RAX: 0000000000000000 RBX: ffff8880174d2000 RCX: 0000000000000001
[  655.847743][ T6495] RDX: 0000000000000000 RSI: ffffffff93510751 RDI: ffffffff92c58280
[  655.848226][ T6495] RBP: ffffc9000cad7168 R08: 0000000000000000 R09: 0000000000000000
[  655.848690][ T6495] R10: ffffc9000cad7198 R11: ffffffff93f8d1e0 R12: 1ffff9200195ae14
[  655.849162][ T6495] R13: 00000000000005dc R14: ffffc9000cad7198 R15: ffff8880174d2f48
[  655.849633][ T6495] FS:  00007f367d6c7800(0000) GS:ffff8880d7499000(0000) knlGS:0000000000000000
[  655.850182][ T6495] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  655.850574][ T6495] CR2: 000000000043d940 CR3: 0000000011c83005 CR4: 0000000000772ef0
[  655.851050][ T6495] PKRU: 55555554
[  655.851289][ T6495] Call Trace:
[  655.851526][ T6495]  <TASK>
[ 655.851695][ T6495] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 655.852043][ T6495] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 655.852374][ T6495] netif_set_mtu (net/core/dev.c:9652) 
[ 655.852705][ T6495] ? __pfx_netif_set_mtu (net/core/dev.c:9647) 
[ 655.853061][ T6495] dev_set_mtu (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:47 net/core/dev_api.c:249) 
[ 655.853313][ T6495] br_mtu_auto_adjust (net/bridge/br_if.c:525) 
[ 655.853645][ T6495] br_add_if (net/bridge/br_if.c:697) 
[ 655.853897][ T6495] do_set_master (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:41 net/core/rtnetlink.c:2949) 
[ 655.854221][ T6495] ? rtnl_configure_link (net/core/rtnetlink.c:3592) 
[ 655.854542][ T6495] rtnl_newlink_create (net/core/rtnetlink.c:3840) 
[ 655.854860][ T6495] ? __pfx_rtnl_newlink_create (net/core/rtnetlink.c:3791) 
[ 655.855184][ T6495] ? __dev_get_by_name (net/core/dev.c:865) 
[ 655.855508][ T6495] ? rtnl_dev_get (net/core/rtnetlink.c:3404) 
[ 655.855818][ T6495] ? __pfx_rtnl_dev_get (net/core/rtnetlink.c:3404) 
[ 655.856156][ T6495] ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4056) 
[ 655.856468][ T6495] ? reacquire_held_locks (kernel/locking/lockdep.c:5388) 
[ 655.856793][ T6495] __rtnl_newlink (net/core/rtnetlink.c:3942) 
[ 655.857130][ T6495] rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4058) 
[ 655.857452][ T6495] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 655.857784][ T6495] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/rtnetlink.c:6944) 
[ 655.858107][ T6495] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 655.858423][ T6495] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 655.858736][ T6495] rtnetlink_rcv_msg (net/core/rtnetlink.c:6946) 
[ 655.859063][ T6495] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 655.859389][ T6495] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 655.859709][ T6495] netlink_rcv_skb (net/netlink/af_netlink.c:2551) 
[ 655.860040][ T6495] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 655.860365][ T6495] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2528) 
[ 655.860688][ T6495] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/netlink/af_netlink.c:340) 
[ 655.861011][ T6495] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 ./include/net/netns/generic.h:48 net/netlink/af_netlink.c:333) 
[ 655.861334][ T6495] netlink_unicast (net/netlink/af_netlink.c:1321 net/netlink/af_netlink.c:1346) 
[ 655.861653][ T6495] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1331) 
[ 655.861982][ T6495] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 655.862303][ T6495] netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 655.862618][ T6495] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1815) 
[ 655.862933][ T6495] ? __import_iovec (lib/iov_iter.c:1441 lib/iov_iter.c:1456) 
[ 655.863274][ T6495] ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 655.863592][ T6495] ? __pfx_____sys_sendmsg (net/socket.c:2560) 
[ 655.864032][ T6495] ? __pfx_copy_msghdr_from_user (net/socket.c:2540) 
[ 655.864448][ T6495] ___sys_sendmsg (net/socket.c:2670) 
[ 655.864764][ T6495] ? __pfx____sys_sendmsg (net/socket.c:2657) 
[ 655.865096][ T6495] ? __pfx_handle_pte_fault (mm/memory.c:6026) 
[ 655.865416][ T6495] ? reacquire_held_locks (kernel/locking/lockdep.c:5388) 
[ 655.865731][ T6495] ? do_user_addr_fault (arch/x86/mm/fault.c:1327) 
[ 655.866066][ T6495] ? __handle_mm_fault (mm/memory.c:6212) 
[ 655.866382][ T6495] ? __pfx___handle_mm_fault (mm/memory.c:6121) 
[ 655.866693][ T6495] ? lock_vma_under_rcu (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 mm/mmap_lock.c:171) 
[ 655.867039][ T6495] __sys_sendmsg (net/socket.c:2700) 
[ 655.867354][ T6495] ? __pfx___sys_sendmsg (net/socket.c:2685) 
[ 655.867669][ T6495] ? exc_page_fault (./arch/x86/include/asm/irqflags.h:26 ./arch/x86/include/asm/irqflags.h:109 ./arch/x86/include/asm/irqflags.h:151 arch/x86/mm/fault.c:1484 arch/x86/mm/fault.c:1532) 
[ 655.868018][ T6495] ? do_user_addr_fault (./arch/x86/include/asm/atomic.h:93 ./include/linux/atomic/atomic-arch-fallback.h:949 ./include/linux/atomic/atomic-instrumented.h:401 ./include/linux/refcount.h:389 ./include/linux/refcount.h:432 ./include/linux/mmap_lock.h:142 ./include/linux/mmap_lock.h:237 arch/x86/mm/fault.c:1338) 
[ 655.868347][ T6495] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 655.868665][ T6495] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 655.868992][ T6495] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[  655.869378][ T6495] RIP: 0033:0x7f367d8941e7
[ 655.869708][ T6495] Code: 0e 00 f7 d8 64 89 02 48 c7 c0 ff ff ff ff eb b9 0f 1f 00 f3 0f 1e fa 64 8b 04 25 18 00 00 00 85 c0 75 10 b8 2e 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 51 c3 48 83 ec 28 89 54 24 1c 48 89 74 24 10
All code
========
   0:	0e                   	(bad)
   1:	00 f7                	add    %dh,%bh
   3:	d8 64 89 02          	fsubs  0x2(%rcx,%rcx,4)
   7:	48 c7 c0 ff ff ff ff 	mov    $0xffffffffffffffff,%rax
   e:	eb b9                	jmp    0xffffffffffffffc9
  10:	0f 1f 00             	nopl   (%rax)
  13:	f3 0f 1e fa          	endbr64
  17:	64 8b 04 25 18 00 00 	mov    %fs:0x18,%eax
  1e:	00 
  1f:	85 c0                	test   %eax,%eax
  21:	75 10                	jne    0x33
  23:	b8 2e 00 00 00       	mov    $0x2e,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 00 f0 ff ff    	cmp    $0xfffffffffffff000,%rax		<-- trapping instruction
  30:	77 51                	ja     0x83
  32:	c3                   	ret
  33:	48 83 ec 28          	sub    $0x28,%rsp
  37:	89 54 24 1c          	mov    %edx,0x1c(%rsp)
  3b:	48 89 74 24 10       	mov    %rsi,0x10(%rsp)

Code starting with the faulting instruction
===========================================
   0:	48 3d 00 f0 ff ff    	cmp    $0xfffffffffffff000,%rax
   6:	77 51                	ja     0x59
   8:	c3                   	ret
   9:	48 83 ec 28          	sub    $0x28,%rsp
   d:	89 54 24 1c          	mov    %edx,0x1c(%rsp)
  11:	48 89 74 24 10       	mov    %rsi,0x10(%rsp)
[  655.870810][ T6495] RSP: 002b:00007fff012ddc88 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[  655.871286][ T6495] RAX: ffffffffffffffda RBX: 00007fff012de3c0 RCX: 00007f367d8941e7
[  655.871750][ T6495] RDX: 0000000000000000 RSI: 00007fff012ddcf0 RDI: 0000000000000005
[  655.872245][ T6495] RBP: 0000000000000006 R08: 000000000000006c R09: 0000000000000000
[  655.872717][ T6495] R10: 00007f367d922ac0 R11: 0000000000000246 R12: 00007fff012de3f8
[  655.873194][ T6495] R13: 00000000686e7ae0 R14: 0000000000499600 R15: 00007fff012ddde0
| [  660.138692][ T6525] ------------[ cut here ]------------
| [ 660.139034][ T6525] WARNING: CPU: 0 PID: 6525 at ./include/net/netdev_lock.h:17 netif_set_mtu_ext (./include/net/netdev_lock.h:17 ./include/net/netdev_lock.h:15 ./include/net/netdev_lock.h:25 net/core/dev.c:9610) 
| [  660.139637][ T6525] Modules linked in: sctp act_gact cls_flower sch_ingress vxlan ip6_gre gre [last unloaded: test_bpf]
| [  660.140991][ T6525] Tainted: [W]=WARN
[  660.141404][ T6525] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 660.141812][ T6525] RIP: 0010:netif_set_mtu_ext (./include/net/netdev_lock.h:17 ./include/net/netdev_lock.h:15 ./include/net/netdev_lock.h:25 net/core/dev.c:9610) 
[ 660.142297][ T6525] Code: 00 00 8b 05 77 04 bc 02 85 c0 0f 84 52 fe ff ff 48 8d bb c0 0c 00 00 be ff ff ff ff e8 da fc 9b 00 85 c0 0f 85 39 fe ff ff 90 <0f> 0b 90 e9 30 fe ff ff 48 b8 00 00 00 00 00 fc ff df 4c 89 fa 48
All code
========
   0:	00 00                	add    %al,(%rax)
   2:	8b 05 77 04 bc 02    	mov    0x2bc0477(%rip),%eax        # 0x2bc047f
   8:	85 c0                	test   %eax,%eax
   a:	0f 84 52 fe ff ff    	je     0xfffffffffffffe62
  10:	48 8d bb c0 0c 00 00 	lea    0xcc0(%rbx),%rdi
  17:	be ff ff ff ff       	mov    $0xffffffff,%esi
  1c:	e8 da fc 9b 00       	call   0x9bfcfb
  21:	85 c0                	test   %eax,%eax
  23:	0f 85 39 fe ff ff    	jne    0xfffffffffffffe62
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	e9 30 fe ff ff       	jmp    0xfffffffffffffe62
  32:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
  39:	fc ff df 
  3c:	4c 89 fa             	mov    %r15,%rdx
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	e9 30 fe ff ff       	jmp    0xfffffffffffffe38
   8:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
   f:	fc ff df 
  12:	4c 89 fa             	mov    %r15,%rdx
  15:	48                   	rex.W
[  660.143547][ T6525] RSP: 0018:ffffc9000c227080 EFLAGS: 00010246
[  660.144092][ T6525] RAX: 0000000000000000 RBX: ffff8880177ea000 RCX: 0000000000000001
[  660.144546][ T6525] RDX: 0000000000000000 RSI: ffffffff93510751 RDI: ffffffff92c58280
[  660.145163][ T6525] RBP: ffffc9000c227168 R08: 0000000000000000 R09: 0000000000000000
[  660.145616][ T6525] R10: ffffc9000c227198 R11: ffffffff93f8d1e0 R12: 1ffff92001844e14
[  660.146098][ T6525] R13: 00000000000005dc R14: ffffc9000c227198 R15: ffff8880177eaf48
[  660.146554][ T6525] FS:  00007fa8c0bee800(0000) GS:ffff8880d7399000(0000) knlGS:0000000000000000
[  660.147103][ T6525] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  660.147485][ T6525] CR2: 000000000043d940 CR3: 000000000b7b3006 CR4: 0000000000772ef0
[  660.147969][ T6525] PKRU: 55555554
[  660.148198][ T6525] Call Trace:
[  660.148423][ T6525]  <TASK>
[ 660.148580][ T6525] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 660.148892][ T6525] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 660.149221][ T6525] netif_set_mtu (net/core/dev.c:9652) 
[ 660.149523][ T6525] ? __pfx_netif_set_mtu (net/core/dev.c:9647) 
[ 660.149842][ T6525] dev_set_mtu (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:47 net/core/dev_api.c:249) 
[ 660.150096][ T6525] br_mtu_auto_adjust (net/bridge/br_if.c:525) 
[ 660.150412][ T6525] br_add_if (net/bridge/br_if.c:697) 
[ 660.150651][ T6525] do_set_master (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:41 net/core/rtnetlink.c:2949) 
[ 660.150969][ T6525] ? rtnl_configure_link (net/core/rtnetlink.c:3592) 
[ 660.151273][ T6525] rtnl_newlink_create (net/core/rtnetlink.c:3840) 
[ 660.151579][ T6525] ? __pfx_rtnl_newlink_create (net/core/rtnetlink.c:3791) 
[ 660.151905][ T6525] ? __dev_get_by_name (net/core/dev.c:865) 
[ 660.152221][ T6525] ? rtnl_dev_get (net/core/rtnetlink.c:3404) 
[ 660.152530][ T6525] ? __pfx_rtnl_dev_get (net/core/rtnetlink.c:3404) 
[ 660.152837][ T6525] ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4056) 
[ 660.153145][ T6525] ? reacquire_held_locks (kernel/locking/lockdep.c:5388) 
[ 660.153452][ T6525] __rtnl_newlink (net/core/rtnetlink.c:3942) 
[ 660.153766][ T6525] rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4058) 
[ 660.154082][ T6525] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 660.154396][ T6525] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/rtnetlink.c:6944) 
[ 660.154701][ T6525] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 660.155016][ T6525] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 660.155319][ T6525] rtnetlink_rcv_msg (net/core/rtnetlink.c:6946) 
[ 660.155622][ T6525] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 660.155930][ T6525] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 660.156250][ T6525] netlink_rcv_skb (net/netlink/af_netlink.c:2551) 
[ 660.156554][ T6525] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 660.156857][ T6525] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2528) 
[ 660.157181][ T6525] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/netlink/af_netlink.c:340) 
[ 660.157482][ T6525] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 ./include/net/netns/generic.h:48 net/netlink/af_netlink.c:333) 
[ 660.157787][ T6525] netlink_unicast (net/netlink/af_netlink.c:1321 net/netlink/af_netlink.c:1346) 
[ 660.158117][ T6525] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1331) 
[ 660.158418][ T6525] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 660.158733][ T6525] netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 660.159048][ T6525] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1815) 
[ 660.159361][ T6525] ? __import_iovec (lib/iov_iter.c:1441 lib/iov_iter.c:1456) 
[ 660.159670][ T6525] ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 660.159983][ T6525] ? __pfx_____sys_sendmsg (net/socket.c:2560) 
[ 660.160289][ T6525] ? __pfx_copy_msghdr_from_user (net/socket.c:2540) 
[ 660.160678][ T6525] ___sys_sendmsg (net/socket.c:2670) 
[ 660.160994][ T6525] ? __pfx____sys_sendmsg (net/socket.c:2657) 
[ 660.161297][ T6525] ? __pfx_handle_pte_fault (mm/memory.c:6026) 
[ 660.161605][ T6525] ? reacquire_held_locks (kernel/locking/lockdep.c:5388) 
[ 660.161915][ T6525] ? do_user_addr_fault (arch/x86/mm/fault.c:1327) 
[ 660.162230][ T6525] ? __handle_mm_fault (mm/memory.c:6212) 
[ 660.162532][ T6525] ? __pfx___handle_mm_fault (mm/memory.c:6121) 
[ 660.162829][ T6525] ? lock_vma_under_rcu (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 mm/mmap_lock.c:171) 
[ 660.163158][ T6525] __sys_sendmsg (net/socket.c:2700) 
[ 660.163466][ T6525] ? __pfx___sys_sendmsg (net/socket.c:2685) 
[ 660.163766][ T6525] ? exc_page_fault (./arch/x86/include/asm/irqflags.h:26 ./arch/x86/include/asm/irqflags.h:109 ./arch/x86/include/asm/irqflags.h:151 arch/x86/mm/fault.c:1484 arch/x86/mm/fault.c:1532) 
[ 660.164084][ T6525] ? do_user_addr_fault (./arch/x86/include/asm/atomic.h:93 ./include/linux/atomic/atomic-arch-fallback.h:949 ./include/linux/atomic/atomic-instrumented.h:401 ./include/linux/refcount.h:389 ./include/linux/refcount.h:432 ./include/linux/mmap_lock.h:142 ./include/linux/mmap_lock.h:237 arch/x86/mm/fault.c:1338) 
[ 660.164386][ T6525] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 660.164689][ T6525] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 660.165001][ T6525] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[  660.165373][ T6525] RIP: 0033:0x7fa8c0dbb1e7
[ 660.165686][ T6525] Code: 0e 00 f7 d8 64 89 02 48 c7 c0 ff ff ff ff eb b9 0f 1f 00 f3 0f 1e fa 64 8b 04 25 18 00 00 00 85 c0 75 10 b8 2e 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 51 c3 48 83 ec 28 89 54 24 1c 48 89 74 24 10
All code
========
   0:	0e                   	(bad)
   1:	00 f7                	add    %dh,%bh
   3:	d8 64 89 02          	fsubs  0x2(%rcx,%rcx,4)
   7:	48 c7 c0 ff ff ff ff 	mov    $0xffffffffffffffff,%rax
   e:	eb b9                	jmp    0xffffffffffffffc9
  10:	0f 1f 00             	nopl   (%rax)
  13:	f3 0f 1e fa          	endbr64
  17:	64 8b 04 25 18 00 00 	mov    %fs:0x18,%eax
  1e:	00 
  1f:	85 c0                	test   %eax,%eax
  21:	75 10                	jne    0x33
  23:	b8 2e 00 00 00       	mov    $0x2e,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 00 f0 ff ff    	cmp    $0xfffffffffffff000,%rax		<-- trapping instruction
  30:	77 51                	ja     0x83
  32:	c3                   	ret
  33:	48 83 ec 28          	sub    $0x28,%rsp
  37:	89 54 24 1c          	mov    %edx,0x1c(%rsp)
  3b:	48 89 74 24 10       	mov    %rsi,0x10(%rsp)

Code starting with the faulting instruction
===========================================
   0:	48 3d 00 f0 ff ff    	cmp    $0xfffffffffffff000,%rax
   6:	77 51                	ja     0x59
   8:	c3                   	ret
   9:	48 83 ec 28          	sub    $0x28,%rsp
   d:	89 54 24 1c          	mov    %edx,0x1c(%rsp)
  11:	48 89 74 24 10       	mov    %rsi,0x10(%rsp)
[  660.166771][ T6525] RSP: 002b:00007ffe8baf7bc8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[  660.167236][ T6525] RAX: ffffffffffffffda RBX: 00007ffe8baf8300 RCX: 00007fa8c0dbb1e7
[  660.167690][ T6525] RDX: 0000000000000000 RSI: 00007ffe8baf7c30 RDI: 0000000000000005
[  660.168152][ T6525] RBP: 0000000000000006 R08: 000000000000006c R09: 0000000000000000
[  660.168603][ T6525] R10: 00007fa8c0e49ac0 R11: 0000000000000246 R12: 00007ffe8baf8338
[  660.169062][ T6525] R13: 00000000686e7ae4 R14: 0000000000499600 R15: 00007ffe8baf7d20
| [  666.945206][ T6592] ------------[ cut here ]------------
| [ 666.945555][ T6592] WARNING: CPU: 2 PID: 6592 at ./include/net/netdev_lock.h:17 netif_set_mtu_ext (./include/net/netdev_lock.h:17 ./include/net/netdev_lock.h:15 ./include/net/netdev_lock.h:25 net/core/dev.c:9610) 
| [  666.947594][ T6592] Modules linked in: sctp act_gact cls_flower sch_ingress vxlan ip6_gre gre [last unloaded: test_bpf]
| [  666.948895][ T6592] Tainted: [W]=WARN
[  666.949170][ T6592] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 666.949585][ T6592] RIP: 0010:netif_set_mtu_ext (./include/net/netdev_lock.h:17 ./include/net/netdev_lock.h:15 ./include/net/netdev_lock.h:25 net/core/dev.c:9610) 
[ 666.949917][ T6592] Code: 00 00 8b 05 77 04 bc 02 85 c0 0f 84 52 fe ff ff 48 8d bb c0 0c 00 00 be ff ff ff ff e8 da fc 9b 00 85 c0 0f 85 39 fe ff ff 90 <0f> 0b 90 e9 30 fe ff ff 48 b8 00 00 00 00 00 fc ff df 4c 89 fa 48
All code
========
   0:	00 00                	add    %al,(%rax)
   2:	8b 05 77 04 bc 02    	mov    0x2bc0477(%rip),%eax        # 0x2bc047f
   8:	85 c0                	test   %eax,%eax
   a:	0f 84 52 fe ff ff    	je     0xfffffffffffffe62
  10:	48 8d bb c0 0c 00 00 	lea    0xcc0(%rbx),%rdi
  17:	be ff ff ff ff       	mov    $0xffffffff,%esi
  1c:	e8 da fc 9b 00       	call   0x9bfcfb
  21:	85 c0                	test   %eax,%eax
  23:	0f 85 39 fe ff ff    	jne    0xfffffffffffffe62
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	e9 30 fe ff ff       	jmp    0xfffffffffffffe62
  32:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
  39:	fc ff df 
  3c:	4c 89 fa             	mov    %r15,%rdx
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	e9 30 fe ff ff       	jmp    0xfffffffffffffe38
   8:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
   f:	fc ff df 
  12:	4c 89 fa             	mov    %r15,%rdx
  15:	48                   	rex.W
[  666.951044][ T6592] RSP: 0018:ffffc9000bf37080 EFLAGS: 00010246
[  666.951452][ T6592] RAX: 0000000000000000 RBX: ffff888011ca2000 RCX: 0000000000000001
[  666.951954][ T6592] RDX: 0000000000000000 RSI: ffffffff93510751 RDI: ffffffff92c58280
[  666.952426][ T6592] RBP: ffffc9000bf37168 R08: 0000000000000000 R09: 0000000000000000
[  666.952897][ T6592] R10: ffffc9000bf37198 R11: ffffffff93f8d1e0 R12: 1ffff920017e6e14
[  666.953392][ T6592] R13: 00000000000005dc R14: ffffc9000bf37198 R15: ffff888011ca2f48
[  666.953873][ T6592] FS:  00007f2da2083800(0000) GS:ffff8880d7499000(0000) knlGS:0000000000000000
[  666.954437][ T6592] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  666.954832][ T6592] CR2: 00007f2da226eba0 CR3: 000000001223e003 CR4: 0000000000772ef0
[  666.955325][ T6592] PKRU: 55555554
[  666.955567][ T6592] Call Trace:
[  666.955809][ T6592]  <TASK>
[ 666.956003][ T6592] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 666.956328][ T6592] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 666.956659][ T6592] netif_set_mtu (net/core/dev.c:9652) 
[ 666.957008][ T6592] ? __pfx_netif_set_mtu (net/core/dev.c:9647) 
[ 666.957345][ T6592] dev_set_mtu (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:47 net/core/dev_api.c:249) 
[ 666.957590][ T6592] br_mtu_auto_adjust (net/bridge/br_if.c:525) 
[ 666.957910][ T6592] br_add_if (net/bridge/br_if.c:697) 
[ 666.958179][ T6592] do_set_master (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:41 net/core/rtnetlink.c:2949) 
[ 666.958510][ T6592] ? rtnl_configure_link (net/core/rtnetlink.c:3592) 
[ 666.958826][ T6592] rtnl_newlink_create (net/core/rtnetlink.c:3840) 
[ 666.959162][ T6592] ? __pfx_rtnl_newlink_create (net/core/rtnetlink.c:3791) 
[ 666.959474][ T6592] ? __dev_get_by_name (net/core/dev.c:865) 
[ 666.959791][ T6592] ? rtnl_dev_get (net/core/rtnetlink.c:3404) 
[ 666.960122][ T6592] ? __pfx_rtnl_dev_get (net/core/rtnetlink.c:3404) 
[ 666.960448][ T6592] ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4056) 
[ 666.960766][ T6592] ? reacquire_held_locks (kernel/locking/lockdep.c:5388) 
[ 666.961116][ T6592] __rtnl_newlink (net/core/rtnetlink.c:3942) 
[ 666.961447][ T6592] rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4058) 
[ 666.961772][ T6592] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 666.962136][ T6592] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/rtnetlink.c:6944) 
[ 666.962456][ T6592] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 666.962773][ T6592] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 666.963144][ T6592] rtnetlink_rcv_msg (net/core/rtnetlink.c:6946) 
[ 666.963478][ T6592] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 666.963806][ T6592] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 666.964147][ T6592] netlink_rcv_skb (net/netlink/af_netlink.c:2551) 
[ 666.964468][ T6592] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 666.964789][ T6592] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2528) 
[ 666.965147][ T6592] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/netlink/af_netlink.c:340) 
[ 666.965467][ T6592] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 ./include/net/netns/generic.h:48 net/netlink/af_netlink.c:333) 
[ 666.965798][ T6592] netlink_unicast (net/netlink/af_netlink.c:1321 net/netlink/af_netlink.c:1346) 
[ 666.966136][ T6592] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1331) 
[ 666.966457][ T6592] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 666.966781][ T6592] netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 666.967122][ T6592] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1815) 
[ 666.967445][ T6592] ? __import_iovec (lib/iov_iter.c:1441 lib/iov_iter.c:1456) 
[ 666.967774][ T6592] ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 666.968128][ T6592] ? __pfx_____sys_sendmsg (net/socket.c:2560) 
[ 666.968460][ T6592] ? __pfx_copy_msghdr_from_user (net/socket.c:2540) 
[ 666.968863][ T6592] ___sys_sendmsg (net/socket.c:2670) 
[ 666.969209][ T6592] ? __pfx____sys_sendmsg (net/socket.c:2657) 
[ 666.969533][ T6592] ? rcu_read_lock_any_held (kernel/rcu/update.c:386 kernel/rcu/update.c:380) 
[ 666.969856][ T6592] ? rcu_read_lock_any_held (kernel/rcu/update.c:386 kernel/rcu/update.c:380) 
[ 666.970182][ T6592] ? validate_chain (kernel/locking/lockdep.c:3804 kernel/locking/lockdep.c:3824 kernel/locking/lockdep.c:3879) 
[ 666.970515][ T6592] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 666.970843][ T6592] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 666.971179][ T6592] __sys_sendmsg (net/socket.c:2700) 
[ 666.971498][ T6592] ? __pfx___sys_sendmsg (net/socket.c:2685) 
[ 666.971841][ T6592] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 666.972180][ T6592] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 666.972504][ T6592] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[  666.972891][ T6592] RIP: 0033:0x7f2da22501e7
[ 666.973246][ T6592] Code: 0e 00 f7 d8 64 89 02 48 c7 c0 ff ff ff ff eb b9 0f 1f 00 f3 0f 1e fa 64 8b 04 25 18 00 00 00 85 c0 75 10 b8 2e 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 51 c3 48 83 ec 28 89 54 24 1c 48 89 74 24 10
All code
========
   0:	0e                   	(bad)
   1:	00 f7                	add    %dh,%bh
   3:	d8 64 89 02          	fsubs  0x2(%rcx,%rcx,4)
   7:	48 c7 c0 ff ff ff ff 	mov    $0xffffffffffffffff,%rax
   e:	eb b9                	jmp    0xffffffffffffffc9
  10:	0f 1f 00             	nopl   (%rax)
  13:	f3 0f 1e fa          	endbr64
  17:	64 8b 04 25 18 00 00 	mov    %fs:0x18,%eax
  1e:	00 
  1f:	85 c0                	test   %eax,%eax
  21:	75 10                	jne    0x33
  23:	b8 2e 00 00 00       	mov    $0x2e,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 00 f0 ff ff    	cmp    $0xfffffffffffff000,%rax		<-- trapping instruction
  30:	77 51                	ja     0x83
  32:	c3                   	ret
  33:	48 83 ec 28          	sub    $0x28,%rsp
  37:	89 54 24 1c          	mov    %edx,0x1c(%rsp)
  3b:	48 89 74 24 10       	mov    %rsi,0x10(%rsp)

Code starting with the faulting instruction
===========================================
   0:	48 3d 00 f0 ff ff    	cmp    $0xfffffffffffff000,%rax
   6:	77 51                	ja     0x59
   8:	c3                   	ret
   9:	48 83 ec 28          	sub    $0x28,%rsp
   d:	89 54 24 1c          	mov    %edx,0x1c(%rsp)
  11:	48 89 74 24 10       	mov    %rsi,0x10(%rsp)
[  666.974358][ T6592] RSP: 002b:00007ffc2ee32968 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[  666.974831][ T6592] RAX: ffffffffffffffda RBX: 00007ffc2ee330a0 RCX: 00007f2da22501e7
[  666.975322][ T6592] RDX: 0000000000000000 RSI: 00007ffc2ee329d0 RDI: 0000000000000005
[  666.975792][ T6592] RBP: 0000000000000006 R08: 0000000000000078 R09: 0000000000000000
[  666.976273][ T6592] R10: 00007f2da22deac0 R11: 0000000000000246 R12: 00007ffc2ee330d8
[  666.976743][ T6592] R13: 00000000686e7aeb R14: 0000000000499600 R15: 00007ffc2ee32ac0
| [  671.010574][ T6623] ------------[ cut here ]------------
| [ 671.010913][ T6623] WARNING: CPU: 2 PID: 6623 at ./include/net/netdev_lock.h:17 netif_set_mtu_ext (./include/net/netdev_lock.h:17 ./include/net/netdev_lock.h:15 ./include/net/netdev_lock.h:25 net/core/dev.c:9610) 
| [  671.011817][ T6623] Modules linked in: sctp act_gact cls_flower sch_ingress vxlan ip6_gre gre [last unloaded: test_bpf]
| [  671.013104][ T6623] Tainted: [W]=WARN
[  671.013346][ T6623] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 671.013745][ T6623] RIP: 0010:netif_set_mtu_ext (./include/net/netdev_lock.h:17 ./include/net/netdev_lock.h:15 ./include/net/netdev_lock.h:25 net/core/dev.c:9610) 
[ 671.014094][ T6623] Code: 00 00 8b 05 77 04 bc 02 85 c0 0f 84 52 fe ff ff 48 8d bb c0 0c 00 00 be ff ff ff ff e8 da fc 9b 00 85 c0 0f 85 39 fe ff ff 90 <0f> 0b 90 e9 30 fe ff ff 48 b8 00 00 00 00 00 fc ff df 4c 89 fa 48
All code
========
   0:	00 00                	add    %al,(%rax)
   2:	8b 05 77 04 bc 02    	mov    0x2bc0477(%rip),%eax        # 0x2bc047f
   8:	85 c0                	test   %eax,%eax
   a:	0f 84 52 fe ff ff    	je     0xfffffffffffffe62
  10:	48 8d bb c0 0c 00 00 	lea    0xcc0(%rbx),%rdi
  17:	be ff ff ff ff       	mov    $0xffffffff,%esi
  1c:	e8 da fc 9b 00       	call   0x9bfcfb
  21:	85 c0                	test   %eax,%eax
  23:	0f 85 39 fe ff ff    	jne    0xfffffffffffffe62
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	e9 30 fe ff ff       	jmp    0xfffffffffffffe62
  32:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
  39:	fc ff df 
  3c:	4c 89 fa             	mov    %r15,%rdx
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	e9 30 fe ff ff       	jmp    0xfffffffffffffe38
   8:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
   f:	fc ff df 
  12:	4c 89 fa             	mov    %r15,%rdx
  15:	48                   	rex.W
[  671.015201][ T6623] RSP: 0018:ffffc9000bf37080 EFLAGS: 00010246
[  671.015601][ T6623] RAX: 0000000000000000 RBX: ffff8880159ca000 RCX: 0000000000000001
[  671.016086][ T6623] RDX: 0000000000000000 RSI: ffffffff93510751 RDI: ffffffff92c58280
[  671.016549][ T6623] RBP: ffffc9000bf37168 R08: 0000000000000000 R09: 0000000000000000
[  671.017027][ T6623] R10: ffffc9000bf37198 R11: ffffffff93f8d1e0 R12: 1ffff920017e6e14
[  671.017491][ T6623] R13: 00000000000005dc R14: ffffc9000bf37198 R15: ffff8880159caf48
[  671.017985][ T6623] FS:  00007fe83ceb5800(0000) GS:ffff8880d7499000(0000) knlGS:0000000000000000
[  671.018531][ T6623] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  671.018922][ T6623] CR2: 00007fe83d0a0ba0 CR3: 0000000002709002 CR4: 0000000000772ef0
[  671.019399][ T6623] PKRU: 55555554
[  671.019640][ T6623] Call Trace:
[  671.019877][ T6623]  <TASK>
[ 671.020063][ T6623] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 671.020380][ T6623] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 671.020708][ T6623] netif_set_mtu (net/core/dev.c:9652) 
[ 671.021034][ T6623] ? __pfx_netif_set_mtu (net/core/dev.c:9647) 
[ 671.021362][ T6623] dev_set_mtu (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:47 net/core/dev_api.c:249) 
[ 671.021606][ T6623] br_mtu_auto_adjust (net/bridge/br_if.c:525) 
[ 671.021931][ T6623] br_add_if (net/bridge/br_if.c:697) 
[ 671.022205][ T6623] do_set_master (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:41 net/core/rtnetlink.c:2949) 
[ 671.022525][ T6623] ? rtnl_configure_link (net/core/rtnetlink.c:3592) 
[ 671.022845][ T6623] rtnl_newlink_create (net/core/rtnetlink.c:3840) 
[ 671.023173][ T6623] ? __pfx_rtnl_newlink_create (net/core/rtnetlink.c:3791) 
[ 671.023489][ T6623] ? __dev_get_by_name (net/core/dev.c:865) 
[ 671.023804][ T6623] ? rtnl_dev_get (net/core/rtnetlink.c:3404) 
[ 671.024129][ T6623] ? __pfx_rtnl_dev_get (net/core/rtnetlink.c:3404) 
[ 671.024449][ T6623] ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4056) 
[ 671.024767][ T6623] ? reacquire_held_locks (kernel/locking/lockdep.c:5388) 
[ 671.025097][ T6623] __rtnl_newlink (net/core/rtnetlink.c:3942) 
[ 671.025422][ T6623] rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4058) 
[ 671.025741][ T6623] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 671.026086][ T6623] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/rtnetlink.c:6944) 
[ 671.026401][ T6623] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 671.026715][ T6623] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 671.027039][ T6623] rtnetlink_rcv_msg (net/core/rtnetlink.c:6946) 
[ 671.027361][ T6623] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 671.027680][ T6623] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 671.028007][ T6623] netlink_rcv_skb (net/netlink/af_netlink.c:2551) 
[ 671.028322][ T6623] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 671.028636][ T6623] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2528) 
[ 671.028973][ T6623] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/netlink/af_netlink.c:340) 
[ 671.029284][ T6623] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 ./include/net/netns/generic.h:48 net/netlink/af_netlink.c:333) 
[ 671.029607][ T6623] netlink_unicast (net/netlink/af_netlink.c:1321 net/netlink/af_netlink.c:1346) 
[ 671.029931][ T6623] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1331) 
[ 671.030267][ T6623] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 671.030590][ T6623] netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 671.030915][ T6623] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1815) 
[ 671.031241][ T6623] ? __import_iovec (lib/iov_iter.c:1441 lib/iov_iter.c:1456) 
[ 671.031563][ T6623] ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 671.031894][ T6623] ? __pfx_____sys_sendmsg (net/socket.c:2560) 
[ 671.032219][ T6623] ? __pfx_copy_msghdr_from_user (net/socket.c:2540) 
[ 671.032619][ T6623] ___sys_sendmsg (net/socket.c:2670) 
[ 671.032936][ T6623] ? __pfx____sys_sendmsg (net/socket.c:2657) 
[ 671.033266][ T6623] ? rcu_read_lock_any_held (kernel/rcu/update.c:386 kernel/rcu/update.c:380) 
[ 671.033586][ T6623] ? rcu_read_lock_any_held (kernel/rcu/update.c:386 kernel/rcu/update.c:380) 
[ 671.033897][ T6623] ? validate_chain (kernel/locking/lockdep.c:3804 kernel/locking/lockdep.c:3824 kernel/locking/lockdep.c:3879) 
[ 671.034243][ T6623] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 671.034574][ T6623] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 671.034892][ T6623] __sys_sendmsg (net/socket.c:2700) 
[ 671.035216][ T6623] ? __pfx___sys_sendmsg (net/socket.c:2685) 
[ 671.035544][ T6623] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 671.035860][ T6623] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 671.036187][ T6623] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[  671.036571][ T6623] RIP: 0033:0x7fe83d0821e7
[ 671.036906][ T6623] Code: 0e 00 f7 d8 64 89 02 48 c7 c0 ff ff ff ff eb b9 0f 1f 00 f3 0f 1e fa 64 8b 04 25 18 00 00 00 85 c0 75 10 b8 2e 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 51 c3 48 83 ec 28 89 54 24 1c 48 89 74 24 10
All code
========
   0:	0e                   	(bad)
   1:	00 f7                	add    %dh,%bh
   3:	d8 64 89 02          	fsubs  0x2(%rcx,%rcx,4)
   7:	48 c7 c0 ff ff ff ff 	mov    $0xffffffffffffffff,%rax
   e:	eb b9                	jmp    0xffffffffffffffc9
  10:	0f 1f 00             	nopl   (%rax)
  13:	f3 0f 1e fa          	endbr64
  17:	64 8b 04 25 18 00 00 	mov    %fs:0x18,%eax
  1e:	00 
  1f:	85 c0                	test   %eax,%eax
  21:	75 10                	jne    0x33
  23:	b8 2e 00 00 00       	mov    $0x2e,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 00 f0 ff ff    	cmp    $0xfffffffffffff000,%rax		<-- trapping instruction
  30:	77 51                	ja     0x83
  32:	c3                   	ret
  33:	48 83 ec 28          	sub    $0x28,%rsp
  37:	89 54 24 1c          	mov    %edx,0x1c(%rsp)
  3b:	48 89 74 24 10       	mov    %rsi,0x10(%rsp)

Code starting with the faulting instruction
===========================================
   0:	48 3d 00 f0 ff ff    	cmp    $0xfffffffffffff000,%rax
   6:	77 51                	ja     0x59
   8:	c3                   	ret
   9:	48 83 ec 28          	sub    $0x28,%rsp
   d:	89 54 24 1c          	mov    %edx,0x1c(%rsp)
  11:	48 89 74 24 10       	mov    %rsi,0x10(%rsp)
[  671.038008][ T6623] RSP: 002b:00007ffcdbe934d8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[  671.038483][ T6623] RAX: ffffffffffffffda RBX: 00007ffcdbe93c10 RCX: 00007fe83d0821e7
[  671.038967][ T6623] RDX: 0000000000000000 RSI: 00007ffcdbe93540 RDI: 0000000000000005
[  671.039430][ T6623] RBP: 0000000000000006 R08: 0000000000000078 R09: 0000000000000000
[  671.039891][ T6623] R10: 00007fe83d110ac0 R11: 0000000000000246 R12: 00007ffcdbe93c48
[  671.040363][ T6623] R13: 00000000686e7aef R14: 0000000000499600 R15: 00007ffcdbe93630
| [  685.707463][ T6725] ------------[ cut here ]------------
| [ 685.707767][ T6725] WARNING: CPU: 0 PID: 6725 at ./include/net/netdev_lock.h:17 netif_set_mtu_ext (./include/net/netdev_lock.h:17 ./include/net/netdev_lock.h:15 ./include/net/netdev_lock.h:25 net/core/dev.c:9610) 
| [  685.708369][ T6725] Modules linked in: sctp act_gact cls_flower sch_ingress vxlan ip6_gre gre [last unloaded: test_bpf]
| [  685.711495][ T6725] Tainted: [W]=WARN
[  685.711730][ T6725] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 685.712127][ T6725] RIP: 0010:netif_set_mtu_ext (./include/net/netdev_lock.h:17 ./include/net/netdev_lock.h:15 ./include/net/netdev_lock.h:25 net/core/dev.c:9610) 
[ 685.712443][ T6725] Code: 00 00 8b 05 77 04 bc 02 85 c0 0f 84 52 fe ff ff 48 8d bb c0 0c 00 00 be ff ff ff ff e8 da fc 9b 00 85 c0 0f 85 39 fe ff ff 90 <0f> 0b 90 e9 30 fe ff ff 48 b8 00 00 00 00 00 fc ff df 4c 89 fa 48
All code
========
   0:	00 00                	add    %al,(%rax)
   2:	8b 05 77 04 bc 02    	mov    0x2bc0477(%rip),%eax        # 0x2bc047f
   8:	85 c0                	test   %eax,%eax
   a:	0f 84 52 fe ff ff    	je     0xfffffffffffffe62
  10:	48 8d bb c0 0c 00 00 	lea    0xcc0(%rbx),%rdi
  17:	be ff ff ff ff       	mov    $0xffffffff,%esi
  1c:	e8 da fc 9b 00       	call   0x9bfcfb
  21:	85 c0                	test   %eax,%eax
  23:	0f 85 39 fe ff ff    	jne    0xfffffffffffffe62
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	e9 30 fe ff ff       	jmp    0xfffffffffffffe62
  32:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
  39:	fc ff df 
  3c:	4c 89 fa             	mov    %r15,%rdx
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	e9 30 fe ff ff       	jmp    0xfffffffffffffe38
   8:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
   f:	fc ff df 
  12:	4c 89 fa             	mov    %r15,%rdx
  15:	48                   	rex.W
[  685.713538][ T6725] RSP: 0018:ffffc9000a7e7080 EFLAGS: 00010246
[  685.713930][ T6725] RAX: 0000000000000000 RBX: ffff8880173f2000 RCX: 0000000000000001
[  685.714386][ T6725] RDX: 0000000000000000 RSI: ffffffff93510751 RDI: ffffffff92c58280
[  685.714842][ T6725] RBP: ffffc9000a7e7168 R08: 0000000000000000 R09: 0000000000000000
[  685.715304][ T6725] R10: ffffc9000a7e7198 R11: ffffffff93f8d1e0 R12: 1ffff920014fce14
[  685.715755][ T6725] R13: 00000000000005dc R14: ffffc9000a7e7198 R15: ffff8880173f2f48
[  685.716212][ T6725] FS:  00007fc51901e800(0000) GS:ffff8880d7399000(0000) knlGS:0000000000000000
[  685.716742][ T6725] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  685.717136][ T6725] CR2: 000000000043d940 CR3: 0000000011e3f005 CR4: 0000000000772ef0
[  685.717596][ T6725] PKRU: 55555554
[  685.717821][ T6725] Call Trace:
[  685.718052][ T6725]  <TASK>
[ 685.718208][ T6725] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 685.718509][ T6725] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 685.718829][ T6725] netif_set_mtu (net/core/dev.c:9652) 
[ 685.719138][ T6725] ? __pfx_netif_set_mtu (net/core/dev.c:9647) 
[ 685.719462][ T6725] dev_set_mtu (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:47 net/core/dev_api.c:249) 
[ 685.719691][ T6725] br_mtu_auto_adjust (net/bridge/br_if.c:525) 
[ 685.720005][ T6725] br_add_if (net/bridge/br_if.c:697) 
[ 685.720243][ T6725] do_set_master (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:41 net/core/rtnetlink.c:2949) 
[ 685.720543][ T6725] ? rtnl_configure_link (net/core/rtnetlink.c:3592) 
[ 685.720851][ T6725] rtnl_newlink_create (net/core/rtnetlink.c:3840) 
[ 685.721170][ T6725] ? __pfx_rtnl_newlink_create (net/core/rtnetlink.c:3791) 
[ 685.721470][ T6725] ? __dev_get_by_name (net/core/dev.c:865) 
[ 685.721770][ T6725] ? rtnl_dev_get (net/core/rtnetlink.c:3404) 
[ 685.722086][ T6725] ? __pfx_rtnl_dev_get (net/core/rtnetlink.c:3404) 
[ 685.722392][ T6725] ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4056) 
[ 685.722690][ T6725] ? reacquire_held_locks (kernel/locking/lockdep.c:5388) 
[ 685.723005][ T6725] __rtnl_newlink (net/core/rtnetlink.c:3942) 
[ 685.723322][ T6725] rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4058) 
[ 685.723630][ T6725] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 685.723954][ T6725] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/rtnetlink.c:6944) 
[ 685.724255][ T6725] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 685.724559][ T6725] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 685.724861][ T6725] rtnetlink_rcv_msg (net/core/rtnetlink.c:6946) 
[ 685.725183][ T6725] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 685.725498][ T6725] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 685.725806][ T6725] netlink_rcv_skb (net/netlink/af_netlink.c:2551) 
[ 685.726116][ T6725] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 685.726421][ T6725] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2528) 
[ 685.726734][ T6725] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/netlink/af_netlink.c:340) 
[ 685.727044][ T6725] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 ./include/net/netns/generic.h:48 net/netlink/af_netlink.c:333) 
[ 685.727347][ T6725] netlink_unicast (net/netlink/af_netlink.c:1321 net/netlink/af_netlink.c:1346) 
[ 685.727658][ T6725] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1331) 
[ 685.727967][ T6725] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 685.728273][ T6725] netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 685.728578][ T6725] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1815) 
[ 685.728882][ T6725] ? __import_iovec (lib/iov_iter.c:1441 lib/iov_iter.c:1456) 
[ 685.729204][ T6725] ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 685.729515][ T6725] ? __pfx_____sys_sendmsg (net/socket.c:2560) 
[ 685.729814][ T6725] ? __pfx_copy_msghdr_from_user (net/socket.c:2540) 
[ 685.730213][ T6725] ___sys_sendmsg (net/socket.c:2670) 
[ 685.730516][ T6725] ? __pfx____sys_sendmsg (net/socket.c:2657) 
[ 685.730816][ T6725] ? __pfx_handle_pte_fault (mm/memory.c:6026) 
[ 685.731135][ T6725] ? reacquire_held_locks (kernel/locking/lockdep.c:5388) 
[ 685.731437][ T6725] ? do_user_addr_fault (arch/x86/mm/fault.c:1327) 
[ 685.731741][ T6725] ? __handle_mm_fault (mm/memory.c:6212) 
[ 685.732088][ T6725] ? __pfx___handle_mm_fault (mm/memory.c:6121) 
[ 685.732388][ T6725] ? lock_vma_under_rcu (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 mm/mmap_lock.c:171) 
[ 685.732708][ T6725] __sys_sendmsg (net/socket.c:2700) 
[ 685.733025][ T6725] ? __pfx___sys_sendmsg (net/socket.c:2685) 
[ 685.733327][ T6725] ? exc_page_fault (./arch/x86/include/asm/irqflags.h:26 ./arch/x86/include/asm/irqflags.h:109 ./arch/x86/include/asm/irqflags.h:151 arch/x86/mm/fault.c:1484 arch/x86/mm/fault.c:1532) 
[ 685.733635][ T6725] ? do_user_addr_fault (./arch/x86/include/asm/atomic.h:93 ./include/linux/atomic/atomic-arch-fallback.h:949 ./include/linux/atomic/atomic-instrumented.h:401 ./include/linux/refcount.h:389 ./include/linux/refcount.h:432 ./include/linux/mmap_lock.h:142 ./include/linux/mmap_lock.h:237 arch/x86/mm/fault.c:1338) 
[ 685.733937][ T6725] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 685.734256][ T6725] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 685.734562][ T6725] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[  685.734934][ T6725] RIP: 0033:0x7fc5191eb1e7
[ 685.735254][ T6725] Code: 0e 00 f7 d8 64 89 02 48 c7 c0 ff ff ff ff eb b9 0f 1f 00 f3 0f 1e fa 64 8b 04 25 18 00 00 00 85 c0 75 10 b8 2e 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 51 c3 48 83 ec 28 89 54 24 1c 48 89 74 24 10
All code
========
   0:	0e                   	(bad)
   1:	00 f7                	add    %dh,%bh
   3:	d8 64 89 02          	fsubs  0x2(%rcx,%rcx,4)
   7:	48 c7 c0 ff ff ff ff 	mov    $0xffffffffffffffff,%rax
   e:	eb b9                	jmp    0xffffffffffffffc9
  10:	0f 1f 00             	nopl   (%rax)
  13:	f3 0f 1e fa          	endbr64
  17:	64 8b 04 25 18 00 00 	mov    %fs:0x18,%eax
  1e:	00 
  1f:	85 c0                	test   %eax,%eax
  21:	75 10                	jne    0x33
  23:	b8 2e 00 00 00       	mov    $0x2e,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 00 f0 ff ff    	cmp    $0xfffffffffffff000,%rax		<-- trapping instruction
  30:	77 51                	ja     0x83
  32:	c3                   	ret
  33:	48 83 ec 28          	sub    $0x28,%rsp
  37:	89 54 24 1c          	mov    %edx,0x1c(%rsp)
  3b:	48 89 74 24 10       	mov    %rsi,0x10(%rsp)

Code starting with the faulting instruction
===========================================
   0:	48 3d 00 f0 ff ff    	cmp    $0xfffffffffffff000,%rax
   6:	77 51                	ja     0x59
   8:	c3                   	ret
   9:	48 83 ec 28          	sub    $0x28,%rsp
   d:	89 54 24 1c          	mov    %edx,0x1c(%rsp)
  11:	48 89 74 24 10       	mov    %rsi,0x10(%rsp)
[  685.736341][ T6725] RSP: 002b:00007fff7763c6f8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[  685.736794][ T6725] RAX: ffffffffffffffda RBX: 00007fff7763ce30 RCX: 00007fc5191eb1e7
[  685.737267][ T6725] RDX: 0000000000000000 RSI: 00007fff7763c760 RDI: 0000000000000005
[  685.737719][ T6725] RBP: 0000000000000006 R08: 000000000000006c R09: 0000000000000000
[  685.738176][ T6725] R10: 00007fc519279ac0 R11: 0000000000000246 R12: 00007fff7763ce68
[  685.738630][ T6725] R13: 00000000686e7afe R14: 0000000000499600 R15: 00007fff7763c850
| [  689.684814][ T6755] ------------[ cut here ]------------
| [ 689.685178][ T6755] WARNING: CPU: 2 PID: 6755 at ./include/net/netdev_lock.h:17 netif_set_mtu_ext (./include/net/netdev_lock.h:17 ./include/net/netdev_lock.h:15 ./include/net/netdev_lock.h:25 net/core/dev.c:9610) 
| [  689.685796][ T6755] Modules linked in: sctp act_gact cls_flower sch_ingress vxlan ip6_gre gre [last unloaded: test_bpf]
| [  689.687101][ T6755] Tainted: [W]=WARN
[  689.687351][ T6755] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 689.687745][ T6755] RIP: 0010:netif_set_mtu_ext (./include/net/netdev_lock.h:17 ./include/net/netdev_lock.h:15 ./include/net/netdev_lock.h:25 net/core/dev.c:9610) 
[ 689.688081][ T6755] Code: 00 00 8b 05 77 04 bc 02 85 c0 0f 84 52 fe ff ff 48 8d bb c0 0c 00 00 be ff ff ff ff e8 da fc 9b 00 85 c0 0f 85 39 fe ff ff 90 <0f> 0b 90 e9 30 fe ff ff 48 b8 00 00 00 00 00 fc ff df 4c 89 fa 48
All code
========
   0:	00 00                	add    %al,(%rax)
   2:	8b 05 77 04 bc 02    	mov    0x2bc0477(%rip),%eax        # 0x2bc047f
   8:	85 c0                	test   %eax,%eax
   a:	0f 84 52 fe ff ff    	je     0xfffffffffffffe62
  10:	48 8d bb c0 0c 00 00 	lea    0xcc0(%rbx),%rdi
  17:	be ff ff ff ff       	mov    $0xffffffff,%esi
  1c:	e8 da fc 9b 00       	call   0x9bfcfb
  21:	85 c0                	test   %eax,%eax
  23:	0f 85 39 fe ff ff    	jne    0xfffffffffffffe62
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	e9 30 fe ff ff       	jmp    0xfffffffffffffe62
  32:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
  39:	fc ff df 
  3c:	4c 89 fa             	mov    %r15,%rdx
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	e9 30 fe ff ff       	jmp    0xfffffffffffffe38
   8:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
   f:	fc ff df 
  12:	4c 89 fa             	mov    %r15,%rdx
  15:	48                   	rex.W
[  689.689195][ T6755] RSP: 0018:ffffc9000b5c7080 EFLAGS: 00010246
[  689.689597][ T6755] RAX: 0000000000000000 RBX: ffff888011ca2000 RCX: 0000000000000001
[  689.690094][ T6755] RDX: 0000000000000000 RSI: ffffffff93510751 RDI: ffffffff92c58280
[  689.690557][ T6755] RBP: ffffc9000b5c7168 R08: 0000000000000000 R09: 0000000000000000
[  689.691043][ T6755] R10: ffffc9000b5c7198 R11: ffffffff93f8d1e0 R12: 1ffff920016b8e14
[  689.691515][ T6755] R13: 00000000000005dc R14: ffffc9000b5c7198 R15: ffff888011ca2f48
[  689.692005][ T6755] FS:  00007f70d40aa800(0000) GS:ffff8880d7499000(0000) knlGS:0000000000000000
[  689.692546][ T6755] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  689.692948][ T6755] CR2: 000000000043d940 CR3: 0000000011d3e006 CR4: 0000000000772ef0
[  689.693415][ T6755] PKRU: 55555554
[  689.693653][ T6755] Call Trace:
[  689.693892][ T6755]  <TASK>
[ 689.694071][ T6755] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 689.694397][ T6755] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 689.694725][ T6755] netif_set_mtu (net/core/dev.c:9652) 
[ 689.695065][ T6755] ? __pfx_netif_set_mtu (net/core/dev.c:9647) 
[ 689.695402][ T6755] dev_set_mtu (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:47 net/core/dev_api.c:249) 
[ 689.695646][ T6755] br_mtu_auto_adjust (net/bridge/br_if.c:525) 
[ 689.695980][ T6755] br_add_if (net/bridge/br_if.c:697) 
[ 689.696234][ T6755] do_set_master (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:41 net/core/rtnetlink.c:2949) 
[ 689.696547][ T6755] ? rtnl_configure_link (net/core/rtnetlink.c:3592) 
[ 689.696872][ T6755] rtnl_newlink_create (net/core/rtnetlink.c:3840) 
[ 689.697205][ T6755] ? __pfx_rtnl_newlink_create (net/core/rtnetlink.c:3791) 
[ 689.697517][ T6755] ? __dev_get_by_name (net/core/dev.c:865) 
[ 689.697833][ T6755] ? rtnl_dev_get (net/core/rtnetlink.c:3404) 
[ 689.698160][ T6755] ? __pfx_rtnl_dev_get (net/core/rtnetlink.c:3404) 
[ 689.698481][ T6755] ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4056) 
[ 689.698790][ T6755] ? reacquire_held_locks (kernel/locking/lockdep.c:5388) 
[ 689.699141][ T6755] __rtnl_newlink (net/core/rtnetlink.c:3942) 
[ 689.699468][ T6755] rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4058) 
[ 689.699787][ T6755] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 689.700124][ T6755] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/rtnetlink.c:6944) 
[ 689.700439][ T6755] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 689.700755][ T6755] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 689.701084][ T6755] rtnetlink_rcv_msg (net/core/rtnetlink.c:6946) 
[ 689.701400][ T6755] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 689.701725][ T6755] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 689.702063][ T6755] netlink_rcv_skb (net/netlink/af_netlink.c:2551) 
[ 689.702383][ T6755] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 689.702699][ T6755] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2528) 
[ 689.703046][ T6755] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/netlink/af_netlink.c:340) 
[ 689.703361][ T6755] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 ./include/net/netns/generic.h:48 net/netlink/af_netlink.c:333) 
[ 689.703686][ T6755] netlink_unicast (net/netlink/af_netlink.c:1321 net/netlink/af_netlink.c:1346) 
[ 689.704013][ T6755] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1331) 
[ 689.704333][ T6755] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 689.704651][ T6755] netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 689.704980][ T6755] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1815) 
[ 689.705300][ T6755] ? __import_iovec (lib/iov_iter.c:1441 lib/iov_iter.c:1456) 
[ 689.705624][ T6755] ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 689.705955][ T6755] ? __pfx_____sys_sendmsg (net/socket.c:2560) 
[ 689.706279][ T6755] ? __pfx_copy_msghdr_from_user (net/socket.c:2540) 
[ 689.706682][ T6755] ___sys_sendmsg (net/socket.c:2670) 
[ 689.707020][ T6755] ? __pfx____sys_sendmsg (net/socket.c:2657) 
[ 689.707342][ T6755] ? __pfx_handle_pte_fault (mm/memory.c:6026) 
[ 689.707662][ T6755] ? reacquire_held_locks (kernel/locking/lockdep.c:5388) 
[ 689.707986][ T6755] ? do_user_addr_fault (arch/x86/mm/fault.c:1327) 
[ 689.708317][ T6755] ? __handle_mm_fault (mm/memory.c:6212) 
[ 689.708632][ T6755] ? __pfx___handle_mm_fault (mm/memory.c:6121) 
[ 689.708956][ T6755] ? lock_vma_under_rcu (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 mm/mmap_lock.c:171) 
[ 689.709298][ T6755] __sys_sendmsg (net/socket.c:2700) 
[ 689.709615][ T6755] ? __pfx___sys_sendmsg (net/socket.c:2685) 
[ 689.709932][ T6755] ? exc_page_fault (./arch/x86/include/asm/irqflags.h:26 ./arch/x86/include/asm/irqflags.h:109 ./arch/x86/include/asm/irqflags.h:151 arch/x86/mm/fault.c:1484 arch/x86/mm/fault.c:1532) 
[ 689.710268][ T6755] ? do_user_addr_fault (./arch/x86/include/asm/atomic.h:93 ./include/linux/atomic/atomic-arch-fallback.h:949 ./include/linux/atomic/atomic-instrumented.h:401 ./include/linux/refcount.h:389 ./include/linux/refcount.h:432 ./include/linux/mmap_lock.h:142 ./include/linux/mmap_lock.h:237 arch/x86/mm/fault.c:1338) 
[ 689.710593][ T6755] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 689.710912][ T6755] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 689.711253][ T6755] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[  689.711644][ T6755] RIP: 0033:0x7f70d42771e7
[ 689.711989][ T6755] Code: 0e 00 f7 d8 64 89 02 48 c7 c0 ff ff ff ff eb b9 0f 1f 00 f3 0f 1e fa 64 8b 04 25 18 00 00 00 85 c0 75 10 b8 2e 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 51 c3 48 83 ec 28 89 54 24 1c 48 89 74 24 10
All code
========
   0:	0e                   	(bad)
   1:	00 f7                	add    %dh,%bh
   3:	d8 64 89 02          	fsubs  0x2(%rcx,%rcx,4)
   7:	48 c7 c0 ff ff ff ff 	mov    $0xffffffffffffffff,%rax
   e:	eb b9                	jmp    0xffffffffffffffc9
  10:	0f 1f 00             	nopl   (%rax)
  13:	f3 0f 1e fa          	endbr64
  17:	64 8b 04 25 18 00 00 	mov    %fs:0x18,%eax
  1e:	00 
  1f:	85 c0                	test   %eax,%eax
  21:	75 10                	jne    0x33
  23:	b8 2e 00 00 00       	mov    $0x2e,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 00 f0 ff ff    	cmp    $0xfffffffffffff000,%rax		<-- trapping instruction
  30:	77 51                	ja     0x83
  32:	c3                   	ret
  33:	48 83 ec 28          	sub    $0x28,%rsp
  37:	89 54 24 1c          	mov    %edx,0x1c(%rsp)
  3b:	48 89 74 24 10       	mov    %rsi,0x10(%rsp)

Code starting with the faulting instruction
===========================================
   0:	48 3d 00 f0 ff ff    	cmp    $0xfffffffffffff000,%rax
   6:	77 51                	ja     0x59
   8:	c3                   	ret
   9:	48 83 ec 28          	sub    $0x28,%rsp
   d:	89 54 24 1c          	mov    %edx,0x1c(%rsp)
  11:	48 89 74 24 10       	mov    %rsi,0x10(%rsp)
[  689.713098][ T6755] RSP: 002b:00007ffde56bf2f8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[  689.713568][ T6755] RAX: ffffffffffffffda RBX: 00007ffde56bfa30 RCX: 00007f70d42771e7
[  689.714050][ T6755] RDX: 0000000000000000 RSI: 00007ffde56bf360 RDI: 0000000000000005
[  689.714522][ T6755] RBP: 0000000000000006 R08: 000000000000006c R09: 0000000000000000
[  689.715053][ T6755] R10: 00007f70d4305ac0 R11: 0000000000000246 R12: 00007ffde56bfa68
[  689.715526][ T6755] R13: 00000000686e7b02 R14: 0000000000499600 R15: 00007ffde56bf450
| [  696.954161][ T6821] ------------[ cut here ]------------
| [ 696.954474][ T6821] WARNING: CPU: 1 PID: 6821 at ./include/net/netdev_lock.h:17 netif_set_mtu_ext (./include/net/netdev_lock.h:17 ./include/net/netdev_lock.h:15 ./include/net/netdev_lock.h:25 net/core/dev.c:9610) 
| [  696.955088][ T6821] Modules linked in: sctp act_gact cls_flower sch_ingress vxlan ip6_gre gre [last unloaded: test_bpf]
| [  696.956336][ T6821] Tainted: [W]=WARN
[  696.956565][ T6821] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 696.956958][ T6821] RIP: 0010:netif_set_mtu_ext (./include/net/netdev_lock.h:17 ./include/net/netdev_lock.h:15 ./include/net/netdev_lock.h:25 net/core/dev.c:9610) 
[ 696.957276][ T6821] Code: 00 00 8b 05 77 04 bc 02 85 c0 0f 84 52 fe ff ff 48 8d bb c0 0c 00 00 be ff ff ff ff e8 da fc 9b 00 85 c0 0f 85 39 fe ff ff 90 <0f> 0b 90 e9 30 fe ff ff 48 b8 00 00 00 00 00 fc ff df 4c 89 fa 48
All code
========
   0:	00 00                	add    %al,(%rax)
   2:	8b 05 77 04 bc 02    	mov    0x2bc0477(%rip),%eax        # 0x2bc047f
   8:	85 c0                	test   %eax,%eax
   a:	0f 84 52 fe ff ff    	je     0xfffffffffffffe62
  10:	48 8d bb c0 0c 00 00 	lea    0xcc0(%rbx),%rdi
  17:	be ff ff ff ff       	mov    $0xffffffff,%esi
  1c:	e8 da fc 9b 00       	call   0x9bfcfb
  21:	85 c0                	test   %eax,%eax
  23:	0f 85 39 fe ff ff    	jne    0xfffffffffffffe62
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	e9 30 fe ff ff       	jmp    0xfffffffffffffe62
  32:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
  39:	fc ff df 
  3c:	4c 89 fa             	mov    %r15,%rdx
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	e9 30 fe ff ff       	jmp    0xfffffffffffffe38
   8:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
   f:	fc ff df 
  12:	4c 89 fa             	mov    %r15,%rdx
  15:	48                   	rex.W
[  696.958357][ T6821] RSP: 0018:ffffc9000b197080 EFLAGS: 00010246
[  696.958741][ T6821] RAX: 0000000000000000 RBX: ffff888011932000 RCX: 0000000000000001
[  696.959206][ T6821] RDX: 0000000000000000 RSI: ffffffff93510751 RDI: ffffffff92c58280
[  696.959656][ T6821] RBP: ffffc9000b197168 R08: 0000000000000000 R09: 0000000000000000
[  696.960118][ T6821] R10: ffffc9000b197198 R11: ffffffff93f8d1e0 R12: 1ffff92001632e14
[  696.960570][ T6821] R13: 00000000000005dc R14: ffffc9000b197198 R15: ffff888011932f48
[  696.961038][ T6821] FS:  00007f8ccad63800(0000) GS:ffff8880d7419000(0000) knlGS:0000000000000000
[  696.961569][ T6821] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  696.961972][ T6821] CR2: 00007f2709f6c000 CR3: 00000000146dc004 CR4: 0000000000772ef0
[  696.962429][ T6821] PKRU: 55555554
[  696.962655][ T6821] Call Trace:
[  696.962884][ T6821]  <TASK>
[ 696.963058][ T6821] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 696.963371][ T6821] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 696.963688][ T6821] netif_set_mtu (net/core/dev.c:9652) 
[ 696.963999][ T6821] ? __pfx_netif_set_mtu (net/core/dev.c:9647) 
[ 696.964318][ T6821] dev_set_mtu (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:47 net/core/dev_api.c:249) 
[ 696.964549][ T6821] br_mtu_auto_adjust (net/bridge/br_if.c:525) 
[ 696.964855][ T6821] br_add_if (net/bridge/br_if.c:697) 
[ 696.965104][ T6821] do_set_master (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:41 net/core/rtnetlink.c:2949) 
[ 696.965405][ T6821] ? rtnl_configure_link (net/core/rtnetlink.c:3592) 
[ 696.965715][ T6821] rtnl_newlink_create (net/core/rtnetlink.c:3840) 
[ 696.966030][ T6821] ? __pfx_rtnl_newlink_create (net/core/rtnetlink.c:3791) 
[ 696.966332][ T6821] ? __dev_get_by_name (net/core/dev.c:865) 
[ 696.966634][ T6821] ? rtnl_dev_get (net/core/rtnetlink.c:3404) 
[ 696.966935][ T6821] ? __pfx_rtnl_dev_get (net/core/rtnetlink.c:3404) 
[ 696.967254][ T6821] ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4056) 
[ 696.967560][ T6821] ? reacquire_held_locks (kernel/locking/lockdep.c:5388) 
[ 696.967873][ T6821] __rtnl_newlink (net/core/rtnetlink.c:3942) 
[ 696.968195][ T6821] rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4058) 
[ 696.968505][ T6821] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 696.968818][ T6821] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/rtnetlink.c:6944) 
[ 696.969125][ T6821] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 696.969430][ T6821] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 696.969733][ T6821] rtnetlink_rcv_msg (net/core/rtnetlink.c:6946) 
[ 696.970044][ T6821] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 696.970358][ T6821] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 696.970667][ T6821] netlink_rcv_skb (net/netlink/af_netlink.c:2551) 
[ 696.970976][ T6821] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 696.971280][ T6821] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2528) 
[ 696.971595][ T6821] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/netlink/af_netlink.c:340) 
[ 696.971904][ T6821] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 ./include/net/netns/generic.h:48 net/netlink/af_netlink.c:333) 
[ 696.972223][ T6821] netlink_unicast (net/netlink/af_netlink.c:1321 net/netlink/af_netlink.c:1346) 
[ 696.972534][ T6821] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1331) 
[ 696.972835][ T6821] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 696.973153][ T6821] netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 696.973461][ T6821] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1815) 
[ 696.973765][ T6821] ? __import_iovec (lib/iov_iter.c:1441 lib/iov_iter.c:1456) 
[ 696.974085][ T6821] ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 696.974390][ T6821] ? __pfx_____sys_sendmsg (net/socket.c:2560) 
[ 696.974695][ T6821] ? __pfx_copy_msghdr_from_user (net/socket.c:2540) 
[ 696.975092][ T6821] ___sys_sendmsg (net/socket.c:2670) 
[ 696.975396][ T6821] ? __pfx____sys_sendmsg (net/socket.c:2657) 
[ 696.975701][ T6821] ? rcu_read_lock_any_held (kernel/rcu/update.c:386 kernel/rcu/update.c:380) 
[ 696.976015][ T6821] ? rcu_read_lock_any_held (kernel/rcu/update.c:386 kernel/rcu/update.c:380) 
[ 696.976315][ T6821] ? validate_chain (kernel/locking/lockdep.c:3804 kernel/locking/lockdep.c:3824 kernel/locking/lockdep.c:3879) 
[ 696.976621][ T6821] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 696.976957][ T6821] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 696.977267][ T6821] __sys_sendmsg (net/socket.c:2700) 
[ 696.977569][ T6821] ? __pfx___sys_sendmsg (net/socket.c:2685) 
[ 696.977884][ T6821] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 696.978195][ T6821] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 696.978501][ T6821] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[  696.978999][ T6821] RIP: 0033:0x7f8ccaf301e7
[ 696.979324][ T6821] Code: 0e 00 f7 d8 64 89 02 48 c7 c0 ff ff ff ff eb b9 0f 1f 00 f3 0f 1e fa 64 8b 04 25 18 00 00 00 85 c0 75 10 b8 2e 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 51 c3 48 83 ec 28 89 54 24 1c 48 89 74 24 10
All code
========
   0:	0e                   	(bad)
   1:	00 f7                	add    %dh,%bh
   3:	d8 64 89 02          	fsubs  0x2(%rcx,%rcx,4)
   7:	48 c7 c0 ff ff ff ff 	mov    $0xffffffffffffffff,%rax
   e:	eb b9                	jmp    0xffffffffffffffc9
  10:	0f 1f 00             	nopl   (%rax)
  13:	f3 0f 1e fa          	endbr64
  17:	64 8b 04 25 18 00 00 	mov    %fs:0x18,%eax
  1e:	00 
  1f:	85 c0                	test   %eax,%eax
  21:	75 10                	jne    0x33
  23:	b8 2e 00 00 00       	mov    $0x2e,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 00 f0 ff ff    	cmp    $0xfffffffffffff000,%rax		<-- trapping instruction
  30:	77 51                	ja     0x83
  32:	c3                   	ret
  33:	48 83 ec 28          	sub    $0x28,%rsp
  37:	89 54 24 1c          	mov    %edx,0x1c(%rsp)
  3b:	48 89 74 24 10       	mov    %rsi,0x10(%rsp)

Code starting with the faulting instruction
===========================================
   0:	48 3d 00 f0 ff ff    	cmp    $0xfffffffffffff000,%rax
   6:	77 51                	ja     0x59
   8:	c3                   	ret
   9:	48 83 ec 28          	sub    $0x28,%rsp
   d:	89 54 24 1c          	mov    %edx,0x1c(%rsp)
  11:	48 89 74 24 10       	mov    %rsi,0x10(%rsp)
[  696.980411][ T6821] RSP: 002b:00007ffe0fd0fa88 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[  696.980870][ T6821] RAX: ffffffffffffffda RBX: 00007ffe0fd101c0 RCX: 00007f8ccaf301e7
[  696.981336][ T6821] RDX: 0000000000000000 RSI: 00007ffe0fd0faf0 RDI: 0000000000000005
[  696.981788][ T6821] RBP: 0000000000000006 R08: 0000000000000078 R09: 0000000000000000
[  696.982277][ T6821] R10: 00007f8ccafbeac0 R11: 0000000000000246 R12: 00007ffe0fd101f8
[  696.982729][ T6821] R13: 00000000686e7b09 R14: 0000000000499600 R15: 00007ffe0fd0fbe0
| [  700.983853][ T6851] ------------[ cut here ]------------
| [ 700.984186][ T6851] WARNING: CPU: 3 PID: 6851 at ./include/net/netdev_lock.h:17 netif_set_mtu_ext (./include/net/netdev_lock.h:17 ./include/net/netdev_lock.h:15 ./include/net/netdev_lock.h:25 net/core/dev.c:9610) 
| [  700.984824][ T6851] Modules linked in: sctp act_gact cls_flower sch_ingress vxlan ip6_gre gre [last unloaded: test_bpf]
| [  700.987626][ T6851] Tainted: [W]=WARN
[  700.987874][ T6851] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 700.988292][ T6851] RIP: 0010:netif_set_mtu_ext (./include/net/netdev_lock.h:17 ./include/net/netdev_lock.h:15 ./include/net/netdev_lock.h:25 net/core/dev.c:9610) 
[ 700.988609][ T6851] Code: 00 00 8b 05 77 04 bc 02 85 c0 0f 84 52 fe ff ff 48 8d bb c0 0c 00 00 be ff ff ff ff e8 da fc 9b 00 85 c0 0f 85 39 fe ff ff 90 <0f> 0b 90 e9 30 fe ff ff 48 b8 00 00 00 00 00 fc ff df 4c 89 fa 48
All code
========
   0:	00 00                	add    %al,(%rax)
   2:	8b 05 77 04 bc 02    	mov    0x2bc0477(%rip),%eax        # 0x2bc047f
   8:	85 c0                	test   %eax,%eax
   a:	0f 84 52 fe ff ff    	je     0xfffffffffffffe62
  10:	48 8d bb c0 0c 00 00 	lea    0xcc0(%rbx),%rdi
  17:	be ff ff ff ff       	mov    $0xffffffff,%esi
  1c:	e8 da fc 9b 00       	call   0x9bfcfb
  21:	85 c0                	test   %eax,%eax
  23:	0f 85 39 fe ff ff    	jne    0xfffffffffffffe62
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	e9 30 fe ff ff       	jmp    0xfffffffffffffe62
  32:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
  39:	fc ff df 
  3c:	4c 89 fa             	mov    %r15,%rdx
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	e9 30 fe ff ff       	jmp    0xfffffffffffffe38
   8:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
   f:	fc ff df 
  12:	4c 89 fa             	mov    %r15,%rdx
  15:	48                   	rex.W
[  700.989706][ T6851] RSP: 0018:ffffc9000cee7080 EFLAGS: 00010246
[  700.990205][ T6851] RAX: 0000000000000000 RBX: ffff888011bf2000 RCX: 0000000000000001
[  700.990670][ T6851] RDX: 0000000000000000 RSI: ffffffff93510751 RDI: ffffffff92c58280
[  700.991146][ T6851] RBP: ffffc9000cee7168 R08: 0000000000000000 R09: 0000000000000000
[  700.991598][ T6851] R10: ffffc9000cee7198 R11: ffffffff93f8d1e0 R12: 1ffff920019dce14
[  700.992089][ T6851] R13: 00000000000005dc R14: ffffc9000cee7198 R15: ffff888011bf2f48
[  700.992558][ T6851] FS:  00007f930ed06800(0000) GS:ffff8880d7519000(0000) knlGS:0000000000000000
[  700.993115][ T6851] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  700.993499][ T6851] CR2: 00007f930eef1ba0 CR3: 000000000e0cf002 CR4: 0000000000772ef0
[  700.993971][ T6851] PKRU: 55555554
[  700.994200][ T6851] Call Trace:
[  700.994425][ T6851]  <TASK>
[ 700.994583][ T6851] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 700.994893][ T6851] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 700.995233][ T6851] netif_set_mtu (net/core/dev.c:9652) 
[ 700.995539][ T6851] ? __pfx_netif_set_mtu (net/core/dev.c:9647) 
[ 700.995857][ T6851] dev_set_mtu (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:47 net/core/dev_api.c:249) 
[ 700.996116][ T6851] br_mtu_auto_adjust (net/bridge/br_if.c:525) 
[ 700.996425][ T6851] br_add_if (net/bridge/br_if.c:697) 
[ 700.996663][ T6851] do_set_master (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:41 net/core/rtnetlink.c:2949) 
[ 700.996975][ T6851] ? rtnl_configure_link (net/core/rtnetlink.c:3592) 
[ 700.997304][ T6851] rtnl_newlink_create (net/core/rtnetlink.c:3840) 
[ 700.997609][ T6851] ? __pfx_rtnl_newlink_create (net/core/rtnetlink.c:3791) 
[ 700.997909][ T6851] ? __dev_get_by_name (net/core/dev.c:865) 
[ 700.998234][ T6851] ? rtnl_dev_get (net/core/rtnetlink.c:3404) 
[ 700.998545][ T6851] ? __pfx_rtnl_dev_get (net/core/rtnetlink.c:3404) 
[ 700.998850][ T6851] ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4056) 
[ 700.999173][ T6851] ? reacquire_held_locks (kernel/locking/lockdep.c:5388) 
[ 700.999487][ T6851] __rtnl_newlink (net/core/rtnetlink.c:3942) 
[ 700.999799][ T6851] rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4058) 
[ 701.000132][ T6851] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 701.000456][ T6851] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/rtnetlink.c:6944) 
[ 701.000753][ T6851] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 701.001069][ T6851] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 701.001381][ T6851] rtnetlink_rcv_msg (net/core/rtnetlink.c:6946) 
[ 701.001695][ T6851] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 701.002030][ T6851] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 701.002352][ T6851] netlink_rcv_skb (net/netlink/af_netlink.c:2551) 
[ 701.002661][ T6851] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 701.002975][ T6851] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2528) 
[ 701.003304][ T6851] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/netlink/af_netlink.c:340) 
[ 701.003605][ T6851] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 ./include/net/netns/generic.h:48 net/netlink/af_netlink.c:333) 
[ 701.003916][ T6851] netlink_unicast (net/netlink/af_netlink.c:1321 net/netlink/af_netlink.c:1346) 
[ 701.004248][ T6851] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1331) 
[ 701.004552][ T6851] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 701.004861][ T6851] netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 701.005191][ T6851] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1815) 
[ 701.005502][ T6851] ? __import_iovec (lib/iov_iter.c:1441 lib/iov_iter.c:1456) 
[ 701.005810][ T6851] ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 701.006121][ T6851] ? __pfx_____sys_sendmsg (net/socket.c:2560) 
[ 701.006439][ T6851] ? __pfx_copy_msghdr_from_user (net/socket.c:2540) 
[ 701.006830][ T6851] ___sys_sendmsg (net/socket.c:2670) 
[ 701.007143][ T6851] ? __pfx____sys_sendmsg (net/socket.c:2657) 
[ 701.007462][ T6851] ? rcu_read_lock_any_held (kernel/rcu/update.c:386 kernel/rcu/update.c:380) 
[ 701.007770][ T6851] ? rcu_read_lock_any_held (kernel/rcu/update.c:386 kernel/rcu/update.c:380) 
[ 701.008081][ T6851] ? validate_chain (kernel/locking/lockdep.c:3804 kernel/locking/lockdep.c:3824 kernel/locking/lockdep.c:3879) 
[ 701.008407][ T6851] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 701.008726][ T6851] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 701.009044][ T6851] __sys_sendmsg (net/socket.c:2700) 
[ 701.009367][ T6851] ? __pfx___sys_sendmsg (net/socket.c:2685) 
[ 701.009681][ T6851] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 701.009994][ T6851] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 701.010312][ T6851] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[  701.010688][ T6851] RIP: 0033:0x7f930eed31e7
[ 701.011014][ T6851] Code: 0e 00 f7 d8 64 89 02 48 c7 c0 ff ff ff ff eb b9 0f 1f 00 f3 0f 1e fa 64 8b 04 25 18 00 00 00 85 c0 75 10 b8 2e 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 51 c3 48 83 ec 28 89 54 24 1c 48 89 74 24 10
All code
========
   0:	0e                   	(bad)
   1:	00 f7                	add    %dh,%bh
   3:	d8 64 89 02          	fsubs  0x2(%rcx,%rcx,4)
   7:	48 c7 c0 ff ff ff ff 	mov    $0xffffffffffffffff,%rax
   e:	eb b9                	jmp    0xffffffffffffffc9
  10:	0f 1f 00             	nopl   (%rax)
  13:	f3 0f 1e fa          	endbr64
  17:	64 8b 04 25 18 00 00 	mov    %fs:0x18,%eax
  1e:	00 
  1f:	85 c0                	test   %eax,%eax
  21:	75 10                	jne    0x33
  23:	b8 2e 00 00 00       	mov    $0x2e,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 00 f0 ff ff    	cmp    $0xfffffffffffff000,%rax		<-- trapping instruction
  30:	77 51                	ja     0x83
  32:	c3                   	ret
  33:	48 83 ec 28          	sub    $0x28,%rsp
  37:	89 54 24 1c          	mov    %edx,0x1c(%rsp)
  3b:	48 89 74 24 10       	mov    %rsi,0x10(%rsp)

Code starting with the faulting instruction
===========================================
   0:	48 3d 00 f0 ff ff    	cmp    $0xfffffffffffff000,%rax
   6:	77 51                	ja     0x59
   8:	c3                   	ret
   9:	48 83 ec 28          	sub    $0x28,%rsp
   d:	89 54 24 1c          	mov    %edx,0x1c(%rsp)
  11:	48 89 74 24 10       	mov    %rsi,0x10(%rsp)
[  701.012153][ T6851] RSP: 002b:00007ffd779fc7f8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[  701.012626][ T6851] RAX: ffffffffffffffda RBX: 00007ffd779fcf30 RCX: 00007f930eed31e7
[  701.013094][ T6851] RDX: 0000000000000000 RSI: 00007ffd779fc860 RDI: 0000000000000005
[  701.013566][ T6851] RBP: 0000000000000006 R08: 0000000000000078 R09: 0000000000000000
[  701.014028][ T6851] R10: 00007f930ef61ac0 R11: 0000000000000246 R12: 00007ffd779fcf68
[  701.014498][ T6851] R13: 00000000686e7b0d R14: 0000000000499600 R15: 00007ffd779fc950
| [  715.492913][ T6953] ------------[ cut here ]------------
| [ 715.493237][ T6953] WARNING: CPU: 0 PID: 6953 at ./include/net/netdev_lock.h:17 netif_set_mtu_ext (./include/net/netdev_lock.h:17 ./include/net/netdev_lock.h:15 ./include/net/netdev_lock.h:25 net/core/dev.c:9610) 
| [  715.493832][ T6953] Modules linked in: sctp act_gact cls_flower sch_ingress vxlan ip6_gre gre [last unloaded: test_bpf]
| [  715.495109][ T6953] Tainted: [W]=WARN
[  715.495339][ T6953] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 715.495715][ T6953] RIP: 0010:netif_set_mtu_ext (./include/net/netdev_lock.h:17 ./include/net/netdev_lock.h:15 ./include/net/netdev_lock.h:25 net/core/dev.c:9610) 
[ 715.496035][ T6953] Code: 00 00 8b 05 77 04 bc 02 85 c0 0f 84 52 fe ff ff 48 8d bb c0 0c 00 00 be ff ff ff ff e8 da fc 9b 00 85 c0 0f 85 39 fe ff ff 90 <0f> 0b 90 e9 30 fe ff ff 48 b8 00 00 00 00 00 fc ff df 4c 89 fa 48
All code
========
   0:	00 00                	add    %al,(%rax)
   2:	8b 05 77 04 bc 02    	mov    0x2bc0477(%rip),%eax        # 0x2bc047f
   8:	85 c0                	test   %eax,%eax
   a:	0f 84 52 fe ff ff    	je     0xfffffffffffffe62
  10:	48 8d bb c0 0c 00 00 	lea    0xcc0(%rbx),%rdi
  17:	be ff ff ff ff       	mov    $0xffffffff,%esi
  1c:	e8 da fc 9b 00       	call   0x9bfcfb
  21:	85 c0                	test   %eax,%eax
  23:	0f 85 39 fe ff ff    	jne    0xfffffffffffffe62
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	e9 30 fe ff ff       	jmp    0xfffffffffffffe62
  32:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
  39:	fc ff df 
  3c:	4c 89 fa             	mov    %r15,%rdx
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	e9 30 fe ff ff       	jmp    0xfffffffffffffe38
   8:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
   f:	fc ff df 
  12:	4c 89 fa             	mov    %r15,%rdx
  15:	48                   	rex.W
[  715.497124][ T6953] RSP: 0018:ffffc9000b3e7080 EFLAGS: 00010246
[  715.497597][ T6953] RAX: 0000000000000000 RBX: ffff888013aca000 RCX: 0000000000000001
[  715.498062][ T6953] RDX: 0000000000000000 RSI: ffffffff93510751 RDI: ffffffff92c58280
[  715.498518][ T6953] RBP: ffffc9000b3e7168 R08: 0000000000000000 R09: 0000000000000000
[  715.498985][ T6953] R10: ffffc9000b3e7198 R11: ffffffff93f8d1e0 R12: 1ffff9200167ce14
[  715.499437][ T6953] R13: 00000000000005dc R14: ffffc9000b3e7198 R15: ffff888013acaf48
[  715.499886][ T6953] FS:  00007fc47e3aa800(0000) GS:ffff8880d7399000(0000) knlGS:0000000000000000
[  715.500419][ T6953] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  715.500799][ T6953] CR2: 000000000043d940 CR3: 000000000bb1c006 CR4: 0000000000772ef0
[  715.501264][ T6953] PKRU: 55555554
[  715.501491][ T6953] Call Trace:
[  715.501716][ T6953]  <TASK>
[ 715.501879][ T6953] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 715.502191][ T6953] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 715.502506][ T6953] netif_set_mtu (net/core/dev.c:9652) 
[ 715.502806][ T6953] ? __pfx_netif_set_mtu (net/core/dev.c:9647) 
[ 715.503138][ T6953] dev_set_mtu (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:47 net/core/dev_api.c:249) 
[ 715.503368][ T6953] br_mtu_auto_adjust (net/bridge/br_if.c:525) 
[ 715.503674][ T6953] br_add_if (net/bridge/br_if.c:697) 
[ 715.503912][ T6953] do_set_master (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:41 net/core/rtnetlink.c:2949) 
[ 715.504220][ T6953] ? rtnl_configure_link (net/core/rtnetlink.c:3592) 
[ 715.504523][ T6953] rtnl_newlink_create (net/core/rtnetlink.c:3840) 
[ 715.504830][ T6953] ? __pfx_rtnl_newlink_create (net/core/rtnetlink.c:3791) 
[ 715.505136][ T6953] ? __dev_get_by_name (net/core/dev.c:865) 
[ 715.505444][ T6953] ? rtnl_dev_get (net/core/rtnetlink.c:3404) 
[ 715.505743][ T6953] ? __pfx_rtnl_dev_get (net/core/rtnetlink.c:3404) 
[ 715.506056][ T6953] ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4056) 
[ 715.506354][ T6953] ? reacquire_held_locks (kernel/locking/lockdep.c:5388) 
[ 715.506658][ T6953] __rtnl_newlink (net/core/rtnetlink.c:3942) 
[ 715.507010][ T6953] rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4058) 
[ 715.507318][ T6953] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 715.507631][ T6953] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/rtnetlink.c:6944) 
[ 715.507935][ T6953] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 715.508256][ T6953] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 715.508556][ T6953] rtnetlink_rcv_msg (net/core/rtnetlink.c:6946) 
[ 715.508860][ T6953] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 715.509175][ T6953] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 715.509482][ T6953] netlink_rcv_skb (net/netlink/af_netlink.c:2551) 
[ 715.509782][ T6953] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 715.510097][ T6953] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2528) 
[ 715.510411][ T6953] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/netlink/af_netlink.c:340) 
[ 715.510709][ T6953] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 ./include/net/netns/generic.h:48 net/netlink/af_netlink.c:333) 
[ 715.511020][ T6953] netlink_unicast (net/netlink/af_netlink.c:1321 net/netlink/af_netlink.c:1346) 
[ 715.511324][ T6953] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1331) 
[ 715.511624][ T6953] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 715.511954][ T6953] netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 715.512266][ T6953] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1815) 
[ 715.512567][ T6953] ? __import_iovec (lib/iov_iter.c:1441 lib/iov_iter.c:1456) 
[ 715.512873][ T6953] ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 715.513186][ T6953] ? __pfx_____sys_sendmsg (net/socket.c:2560) 
[ 715.513483][ T6953] ? __pfx_copy_msghdr_from_user (net/socket.c:2540) 
[ 715.513868][ T6953] ___sys_sendmsg (net/socket.c:2670) 
[ 715.514178][ T6953] ? __pfx____sys_sendmsg (net/socket.c:2657) 
[ 715.514488][ T6953] ? __pfx_handle_pte_fault (mm/memory.c:6026) 
[ 715.514791][ T6953] ? reacquire_held_locks (kernel/locking/lockdep.c:5388) 
[ 715.515100][ T6953] ? do_user_addr_fault (arch/x86/mm/fault.c:1327) 
[ 715.515405][ T6953] ? __handle_mm_fault (mm/memory.c:6212) 
[ 715.515705][ T6953] ? __pfx___handle_mm_fault (mm/memory.c:6121) 
[ 715.516012][ T6953] ? lock_vma_under_rcu (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 mm/mmap_lock.c:171) 
[ 715.516341][ T6953] __sys_sendmsg (net/socket.c:2700) 
[ 715.516644][ T6953] ? __pfx___sys_sendmsg (net/socket.c:2685) 
[ 715.516952][ T6953] ? exc_page_fault (./arch/x86/include/asm/irqflags.h:26 ./arch/x86/include/asm/irqflags.h:109 ./arch/x86/include/asm/irqflags.h:151 arch/x86/mm/fault.c:1484 arch/x86/mm/fault.c:1532) 
[ 715.517262][ T6953] ? do_user_addr_fault (./arch/x86/include/asm/atomic.h:93 ./include/linux/atomic/atomic-arch-fallback.h:949 ./include/linux/atomic/atomic-instrumented.h:401 ./include/linux/refcount.h:389 ./include/linux/refcount.h:432 ./include/linux/mmap_lock.h:142 ./include/linux/mmap_lock.h:237 arch/x86/mm/fault.c:1338) 
[ 715.517563][ T6953] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 715.517868][ T6953] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 715.518178][ T6953] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[  715.518549][ T6953] RIP: 0033:0x7fc47e5771e7
[ 715.518865][ T6953] Code: 0e 00 f7 d8 64 89 02 48 c7 c0 ff ff ff ff eb b9 0f 1f 00 f3 0f 1e fa 64 8b 04 25 18 00 00 00 85 c0 75 10 b8 2e 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 51 c3 48 83 ec 28 89 54 24 1c 48 89 74 24 10
All code
========
   0:	0e                   	(bad)
   1:	00 f7                	add    %dh,%bh
   3:	d8 64 89 02          	fsubs  0x2(%rcx,%rcx,4)
   7:	48 c7 c0 ff ff ff ff 	mov    $0xffffffffffffffff,%rax
   e:	eb b9                	jmp    0xffffffffffffffc9
  10:	0f 1f 00             	nopl   (%rax)
  13:	f3 0f 1e fa          	endbr64
  17:	64 8b 04 25 18 00 00 	mov    %fs:0x18,%eax
  1e:	00 
  1f:	85 c0                	test   %eax,%eax
  21:	75 10                	jne    0x33
  23:	b8 2e 00 00 00       	mov    $0x2e,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 00 f0 ff ff    	cmp    $0xfffffffffffff000,%rax		<-- trapping instruction
  30:	77 51                	ja     0x83
  32:	c3                   	ret
  33:	48 83 ec 28          	sub    $0x28,%rsp
  37:	89 54 24 1c          	mov    %edx,0x1c(%rsp)
  3b:	48 89 74 24 10       	mov    %rsi,0x10(%rsp)

Code starting with the faulting instruction
===========================================
   0:	48 3d 00 f0 ff ff    	cmp    $0xfffffffffffff000,%rax
   6:	77 51                	ja     0x59
   8:	c3                   	ret
   9:	48 83 ec 28          	sub    $0x28,%rsp
   d:	89 54 24 1c          	mov    %edx,0x1c(%rsp)
  11:	48 89 74 24 10       	mov    %rsi,0x10(%rsp)
[  715.519949][ T6953] RSP: 002b:00007ffe464c1be8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[  715.520410][ T6953] RAX: ffffffffffffffda RBX: 00007ffe464c2320 RCX: 00007fc47e5771e7
[  715.520863][ T6953] RDX: 0000000000000000 RSI: 00007ffe464c1c50 RDI: 0000000000000005
[  715.521320][ T6953] RBP: 0000000000000006 R08: 000000000000006c R09: 0000000000000000
[  715.521772][ T6953] R10: 00007fc47e605ac0 R11: 0000000000000246 R12: 00007ffe464c2358
[  715.522240][ T6953] R13: 00000000686e7b1c R14: 0000000000499600 R15: 00007ffe464c1d40
| [  719.473148][ T6983] ------------[ cut here ]------------
| [ 719.473459][ T6983] WARNING: CPU: 0 PID: 6983 at ./include/net/netdev_lock.h:17 netif_set_mtu_ext (./include/net/netdev_lock.h:17 ./include/net/netdev_lock.h:15 ./include/net/netdev_lock.h:25 net/core/dev.c:9610) 
| [  719.474952][ T6983] Modules linked in: sctp act_gact cls_flower sch_ingress vxlan ip6_gre gre [last unloaded: test_bpf]
| [  719.476192][ T6983] Tainted: [W]=WARN
[  719.476423][ T6983] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 719.476804][ T6983] RIP: 0010:netif_set_mtu_ext (./include/net/netdev_lock.h:17 ./include/net/netdev_lock.h:15 ./include/net/netdev_lock.h:25 net/core/dev.c:9610) 
[ 719.477135][ T6983] Code: 00 00 8b 05 77 04 bc 02 85 c0 0f 84 52 fe ff ff 48 8d bb c0 0c 00 00 be ff ff ff ff e8 da fc 9b 00 85 c0 0f 85 39 fe ff ff 90 <0f> 0b 90 e9 30 fe ff ff 48 b8 00 00 00 00 00 fc ff df 4c 89 fa 48
All code
========
   0:	00 00                	add    %al,(%rax)
   2:	8b 05 77 04 bc 02    	mov    0x2bc0477(%rip),%eax        # 0x2bc047f
   8:	85 c0                	test   %eax,%eax
   a:	0f 84 52 fe ff ff    	je     0xfffffffffffffe62
  10:	48 8d bb c0 0c 00 00 	lea    0xcc0(%rbx),%rdi
  17:	be ff ff ff ff       	mov    $0xffffffff,%esi
  1c:	e8 da fc 9b 00       	call   0x9bfcfb
  21:	85 c0                	test   %eax,%eax
  23:	0f 85 39 fe ff ff    	jne    0xfffffffffffffe62
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	e9 30 fe ff ff       	jmp    0xfffffffffffffe62
  32:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
  39:	fc ff df 
  3c:	4c 89 fa             	mov    %r15,%rdx
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	e9 30 fe ff ff       	jmp    0xfffffffffffffe38
   8:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
   f:	fc ff df 
  12:	4c 89 fa             	mov    %r15,%rdx
  15:	48                   	rex.W
[  719.478227][ T6983] RSP: 0018:ffffc9000b3a7080 EFLAGS: 00010246
[  719.478615][ T6983] RAX: 0000000000000000 RBX: ffff888011932000 RCX: 0000000000000001
[  719.479079][ T6983] RDX: 0000000000000000 RSI: ffffffff93510751 RDI: ffffffff92c58280
[  719.479567][ T6983] RBP: ffffc9000b3a7168 R08: 0000000000000000 R09: 0000000000000000
[  719.480029][ T6983] R10: ffffc9000b3a7198 R11: ffffffff93f8d1e0 R12: 1ffff92001674e14
[  719.480494][ T6983] R13: 00000000000005dc R14: ffffc9000b3a7198 R15: ffff888011932f48
[  719.480971][ T6983] FS:  00007f3c0c8d9800(0000) GS:ffff8880d7399000(0000) knlGS:0000000000000000
[  719.481525][ T6983] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  719.481914][ T6983] CR2: 000000000043d940 CR3: 000000001217a003 CR4: 0000000000772ef0
[  719.482530][ T6983] PKRU: 55555554
[  719.482767][ T6983] Call Trace:
[  719.483131][ T6983]  <TASK>
[ 719.483290][ T6983] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 719.483594][ T6983] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 719.483908][ T6983] netif_set_mtu (net/core/dev.c:9652) 
[ 719.484354][ T6983] ? __pfx_netif_set_mtu (net/core/dev.c:9647) 
[ 719.484675][ T6983] dev_set_mtu (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:47 net/core/dev_api.c:249) 
[ 719.484906][ T6983] br_mtu_auto_adjust (net/bridge/br_if.c:525) 
[ 719.485378][ T6983] br_add_if (net/bridge/br_if.c:697) 
[ 719.485618][ T6983] do_set_master (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:41 net/core/rtnetlink.c:2949) 
[ 719.485919][ T6983] ? rtnl_configure_link (net/core/rtnetlink.c:3592) 
[ 719.486371][ T6983] rtnl_newlink_create (net/core/rtnetlink.c:3840) 
[ 719.486680][ T6983] ? __pfx_rtnl_newlink_create (net/core/rtnetlink.c:3791) 
[ 719.487029][ T6983] ? __dev_get_by_name (net/core/dev.c:865) 
[ 719.487333][ T6983] ? rtnl_dev_get (net/core/rtnetlink.c:3404) 
[ 719.487634][ T6983] ? __pfx_rtnl_dev_get (net/core/rtnetlink.c:3404) 
[ 719.487961][ T6983] ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4056) 
[ 719.488261][ T6983] ? reacquire_held_locks (kernel/locking/lockdep.c:5388) 
[ 719.488568][ T6983] __rtnl_newlink (net/core/rtnetlink.c:3942) 
[ 719.488882][ T6983] rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4058) 
[ 719.489197][ T6983] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 719.489511][ T6983] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/rtnetlink.c:6944) 
[ 719.489812][ T6983] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 719.490134][ T6983] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 719.490441][ T6983] rtnetlink_rcv_msg (net/core/rtnetlink.c:6946) 
[ 719.490743][ T6983] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 719.491060][ T6983] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 719.491375][ T6983] netlink_rcv_skb (net/netlink/af_netlink.c:2551) 
[ 719.491677][ T6983] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 719.491999][ T6983] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2528) 
[ 719.492315][ T6983] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/netlink/af_netlink.c:340) 
[ 719.492624][ T6983] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 ./include/net/netns/generic.h:48 net/netlink/af_netlink.c:333) 
[ 719.492927][ T6983] netlink_unicast (net/netlink/af_netlink.c:1321 net/netlink/af_netlink.c:1346) 
[ 719.493241][ T6983] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1331) 
[ 719.493544][ T6983] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 719.493850][ T6983] netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 719.494165][ T6983] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1815) 
[ 719.494471][ T6983] ? __import_iovec (lib/iov_iter.c:1441 lib/iov_iter.c:1456) 
[ 719.494791][ T6983] ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 719.495101][ T6983] ? __pfx_____sys_sendmsg (net/socket.c:2560) 
[ 719.495402][ T6983] ? __pfx_copy_msghdr_from_user (net/socket.c:2540) 
[ 719.495790][ T6983] ___sys_sendmsg (net/socket.c:2670) 
[ 719.496101][ T6983] ? __pfx____sys_sendmsg (net/socket.c:2657) 
[ 719.496409][ T6983] ? __pfx_handle_pte_fault (mm/memory.c:6026) 
[ 719.496712][ T6983] ? reacquire_held_locks (kernel/locking/lockdep.c:5388) 
[ 719.497027][ T6983] ? do_user_addr_fault (arch/x86/mm/fault.c:1327) 
[ 719.497333][ T6983] ? __handle_mm_fault (mm/memory.c:6212) 
[ 719.497636][ T6983] ? __pfx___handle_mm_fault (mm/memory.c:6121) 
[ 719.497937][ T6983] ? lock_vma_under_rcu (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 mm/mmap_lock.c:171) 
[ 719.498285][ T6983] __sys_sendmsg (net/socket.c:2700) 
[ 719.498588][ T6983] ? __pfx___sys_sendmsg (net/socket.c:2685) 
[ 719.498897][ T6983] ? exc_page_fault (./arch/x86/include/asm/irqflags.h:26 ./arch/x86/include/asm/irqflags.h:109 ./arch/x86/include/asm/irqflags.h:151 arch/x86/mm/fault.c:1484 arch/x86/mm/fault.c:1532) 
[ 719.499227][ T6983] ? do_user_addr_fault (./arch/x86/include/asm/atomic.h:93 ./include/linux/atomic/atomic-arch-fallback.h:949 ./include/linux/atomic/atomic-instrumented.h:401 ./include/linux/refcount.h:389 ./include/linux/refcount.h:432 ./include/linux/mmap_lock.h:142 ./include/linux/mmap_lock.h:237 arch/x86/mm/fault.c:1338) 
[ 719.499531][ T6983] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 719.499836][ T6983] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 719.500148][ T6983] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[  719.500524][ T6983] RIP: 0033:0x7f3c0caa61e7
[ 719.500843][ T6983] Code: 0e 00 f7 d8 64 89 02 48 c7 c0 ff ff ff ff eb b9 0f 1f 00 f3 0f 1e fa 64 8b 04 25 18 00 00 00 85 c0 75 10 b8 2e 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 51 c3 48 83 ec 28 89 54 24 1c 48 89 74 24 10
All code
========
   0:	0e                   	(bad)
   1:	00 f7                	add    %dh,%bh
   3:	d8 64 89 02          	fsubs  0x2(%rcx,%rcx,4)
   7:	48 c7 c0 ff ff ff ff 	mov    $0xffffffffffffffff,%rax
   e:	eb b9                	jmp    0xffffffffffffffc9
  10:	0f 1f 00             	nopl   (%rax)
  13:	f3 0f 1e fa          	endbr64
  17:	64 8b 04 25 18 00 00 	mov    %fs:0x18,%eax
  1e:	00 
  1f:	85 c0                	test   %eax,%eax
  21:	75 10                	jne    0x33
  23:	b8 2e 00 00 00       	mov    $0x2e,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 00 f0 ff ff    	cmp    $0xfffffffffffff000,%rax		<-- trapping instruction
  30:	77 51                	ja     0x83
  32:	c3                   	ret
  33:	48 83 ec 28          	sub    $0x28,%rsp
  37:	89 54 24 1c          	mov    %edx,0x1c(%rsp)
  3b:	48 89 74 24 10       	mov    %rsi,0x10(%rsp)

Code starting with the faulting instruction
===========================================
   0:	48 3d 00 f0 ff ff    	cmp    $0xfffffffffffff000,%rax
   6:	77 51                	ja     0x59
   8:	c3                   	ret
   9:	48 83 ec 28          	sub    $0x28,%rsp
   d:	89 54 24 1c          	mov    %edx,0x1c(%rsp)
  11:	48 89 74 24 10       	mov    %rsi,0x10(%rsp)
[  719.501959][ T6983] RSP: 002b:00007fffd23cf8a8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[  719.502420][ T6983] RAX: ffffffffffffffda RBX: 00007fffd23cffe0 RCX: 00007f3c0caa61e7
[  719.502876][ T6983] RDX: 0000000000000000 RSI: 00007fffd23cf910 RDI: 0000000000000005
[  719.503343][ T6983] RBP: 0000000000000006 R08: 000000000000006c R09: 0000000000000000
[  719.503799][ T6983] R10: 00007f3c0cb34ac0 R11: 0000000000000246 R12: 00007fffd23d0018
[  719.504262][ T6983] R13: 00000000686e7b20 R14: 0000000000499600 R15: 00007fffd23cfa00
| [  726.422811][ T7048] ------------[ cut here ]------------
| [ 726.423264][ T7048] WARNING: CPU: 3 PID: 7048 at ./include/net/netdev_lock.h:17 netif_set_mtu_ext (./include/net/netdev_lock.h:17 ./include/net/netdev_lock.h:15 ./include/net/netdev_lock.h:25 net/core/dev.c:9610) 
| [  726.423982][ T7048] Modules linked in: sctp act_gact cls_flower sch_ingress vxlan ip6_gre gre [last unloaded: test_bpf]
| [  726.425318][ T7048] Tainted: [W]=WARN
[  726.425563][ T7048] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 726.425959][ T7048] RIP: 0010:netif_set_mtu_ext (./include/net/netdev_lock.h:17 ./include/net/netdev_lock.h:15 ./include/net/netdev_lock.h:25 net/core/dev.c:9610) 
[ 726.426281][ T7048] Code: 00 00 8b 05 77 04 bc 02 85 c0 0f 84 52 fe ff ff 48 8d bb c0 0c 00 00 be ff ff ff ff e8 da fc 9b 00 85 c0 0f 85 39 fe ff ff 90 <0f> 0b 90 e9 30 fe ff ff 48 b8 00 00 00 00 00 fc ff df 4c 89 fa 48
All code
========
   0:	00 00                	add    %al,(%rax)
   2:	8b 05 77 04 bc 02    	mov    0x2bc0477(%rip),%eax        # 0x2bc047f
   8:	85 c0                	test   %eax,%eax
   a:	0f 84 52 fe ff ff    	je     0xfffffffffffffe62
  10:	48 8d bb c0 0c 00 00 	lea    0xcc0(%rbx),%rdi
  17:	be ff ff ff ff       	mov    $0xffffffff,%esi
  1c:	e8 da fc 9b 00       	call   0x9bfcfb
  21:	85 c0                	test   %eax,%eax
  23:	0f 85 39 fe ff ff    	jne    0xfffffffffffffe62
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	e9 30 fe ff ff       	jmp    0xfffffffffffffe62
  32:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
  39:	fc ff df 
  3c:	4c 89 fa             	mov    %r15,%rdx
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	e9 30 fe ff ff       	jmp    0xfffffffffffffe38
   8:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
   f:	fc ff df 
  12:	4c 89 fa             	mov    %r15,%rdx
  15:	48                   	rex.W
[  726.427405][ T7048] RSP: 0018:ffffc90009317080 EFLAGS: 00010246
[  726.427818][ T7048] RAX: 0000000000000000 RBX: ffff88800c852000 RCX: 0000000000000001
[  726.428293][ T7048] RDX: 0000000000000000 RSI: ffffffff93510751 RDI: ffffffff92c58280
[  726.428758][ T7048] RBP: ffffc90009317168 R08: 0000000000000000 R09: 0000000000000000
[  726.429232][ T7048] R10: ffffc90009317198 R11: ffffffff93f8d1e0 R12: 1ffff92001262e14
[  726.429704][ T7048] R13: 00000000000005dc R14: ffffc90009317198 R15: ffff88800c852f48
[  726.430176][ T7048] FS:  00007f3d15311800(0000) GS:ffff8880d7519000(0000) knlGS:0000000000000000
[  726.430719][ T7048] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  726.431128][ T7048] CR2: 00007f3d15411130 CR3: 000000000c5dd006 CR4: 0000000000772ef0
[  726.431612][ T7048] PKRU: 55555554
[  726.431846][ T7048] Call Trace:
[  726.432117][ T7048]  <TASK>
[ 726.432283][ T7048] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 726.432600][ T7048] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 726.432929][ T7048] netif_set_mtu (net/core/dev.c:9652) 
[ 726.433263][ T7048] ? __pfx_netif_set_mtu (net/core/dev.c:9647) 
[ 726.433590][ T7048] dev_set_mtu (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:47 net/core/dev_api.c:249) 
[ 726.433825][ T7048] br_mtu_auto_adjust (net/bridge/br_if.c:525) 
[ 726.434155][ T7048] br_add_if (net/bridge/br_if.c:697) 
[ 726.434398][ T7048] do_set_master (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:41 net/core/rtnetlink.c:2949) 
[ 726.434708][ T7048] ? rtnl_configure_link (net/core/rtnetlink.c:3592) 
[ 726.435037][ T7048] rtnl_newlink_create (net/core/rtnetlink.c:3840) 
[ 726.435352][ T7048] ? __pfx_rtnl_newlink_create (net/core/rtnetlink.c:3791) 
[ 726.435656][ T7048] ? __dev_get_by_name (net/core/dev.c:865) 
[ 726.435971][ T7048] ? rtnl_dev_get (net/core/rtnetlink.c:3404) 
[ 726.436286][ T7048] ? __pfx_rtnl_dev_get (net/core/rtnetlink.c:3404) 
[ 726.436598][ T7048] ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4056) 
[ 726.436903][ T7048] ? reacquire_held_locks (kernel/locking/lockdep.c:5388) 
[ 726.437225][ T7048] __rtnl_newlink (net/core/rtnetlink.c:3942) 
[ 726.437545][ T7048] rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4058) 
[ 726.437858][ T7048] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 726.438187][ T7048] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/rtnetlink.c:6944) 
[ 726.438495][ T7048] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 726.438811][ T7048] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 726.439137][ T7048] rtnetlink_rcv_msg (net/core/rtnetlink.c:6946) 
[ 726.439448][ T7048] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 726.439760][ T7048] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 726.440086][ T7048] netlink_rcv_skb (net/netlink/af_netlink.c:2551) 
[ 726.440395][ T7048] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 726.440707][ T7048] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2528) 
[ 726.441040][ T7048] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/netlink/af_netlink.c:340) 
[ 726.441351][ T7048] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 ./include/net/netns/generic.h:48 net/netlink/af_netlink.c:333) 
[ 726.441662][ T7048] netlink_unicast (net/netlink/af_netlink.c:1321 net/netlink/af_netlink.c:1346) 
[ 726.442007][ T7048] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1331) 
[ 726.442322][ T7048] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 726.442643][ T7048] netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 726.442985][ T7048] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1815) 
[ 726.443321][ T7048] ? __import_iovec (lib/iov_iter.c:1441 lib/iov_iter.c:1456) 
[ 726.443640][ T7048] ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 726.443965][ T7048] ? __pfx_____sys_sendmsg (net/socket.c:2560) 
[ 726.444271][ T7048] ? __pfx_copy_msghdr_from_user (net/socket.c:2540) 
[ 726.444665][ T7048] ___sys_sendmsg (net/socket.c:2670) 
[ 726.444992][ T7048] ? __pfx____sys_sendmsg (net/socket.c:2657) 
[ 726.445303][ T7048] ? __pfx_handle_pte_fault (mm/memory.c:6026) 
[ 726.445619][ T7048] ? reacquire_held_locks (kernel/locking/lockdep.c:5388) 
[ 726.445928][ T7048] ? do_user_addr_fault (arch/x86/mm/fault.c:1327) 
[ 726.446248][ T7048] ? __handle_mm_fault (mm/memory.c:6212) 
[ 726.446556][ T7048] ? __pfx___handle_mm_fault (mm/memory.c:6121) 
[ 726.446864][ T7048] ? lock_vma_under_rcu (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 mm/mmap_lock.c:171) 
[ 726.447214][ T7048] __sys_sendmsg (net/socket.c:2700) 
[ 726.447527][ T7048] ? __pfx___sys_sendmsg (net/socket.c:2685) 
[ 726.447844][ T7048] ? exc_page_fault (./arch/x86/include/asm/irqflags.h:26 ./arch/x86/include/asm/irqflags.h:109 ./arch/x86/include/asm/irqflags.h:151 arch/x86/mm/fault.c:1484 arch/x86/mm/fault.c:1532) 
[ 726.448173][ T7048] ? do_user_addr_fault (./arch/x86/include/asm/atomic.h:93 ./include/linux/atomic/atomic-arch-fallback.h:949 ./include/linux/atomic/atomic-instrumented.h:401 ./include/linux/refcount.h:389 ./include/linux/refcount.h:432 ./include/linux/mmap_lock.h:142 ./include/linux/mmap_lock.h:237 arch/x86/mm/fault.c:1338) 
[ 726.448485][ T7048] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 726.448798][ T7048] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 726.449120][ T7048] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[  726.449504][ T7048] RIP: 0033:0x7f3d154de1e7
[ 726.449827][ T7048] Code: 0e 00 f7 d8 64 89 02 48 c7 c0 ff ff ff ff eb b9 0f 1f 00 f3 0f 1e fa 64 8b 04 25 18 00 00 00 85 c0 75 10 b8 2e 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 51 c3 48 83 ec 28 89 54 24 1c 48 89 74 24 10
All code
========
   0:	0e                   	(bad)
   1:	00 f7                	add    %dh,%bh
   3:	d8 64 89 02          	fsubs  0x2(%rcx,%rcx,4)
   7:	48 c7 c0 ff ff ff ff 	mov    $0xffffffffffffffff,%rax
   e:	eb b9                	jmp    0xffffffffffffffc9
  10:	0f 1f 00             	nopl   (%rax)
  13:	f3 0f 1e fa          	endbr64
  17:	64 8b 04 25 18 00 00 	mov    %fs:0x18,%eax
  1e:	00 
  1f:	85 c0                	test   %eax,%eax
  21:	75 10                	jne    0x33
  23:	b8 2e 00 00 00       	mov    $0x2e,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 00 f0 ff ff    	cmp    $0xfffffffffffff000,%rax		<-- trapping instruction
  30:	77 51                	ja     0x83
  32:	c3                   	ret
  33:	48 83 ec 28          	sub    $0x28,%rsp
  37:	89 54 24 1c          	mov    %edx,0x1c(%rsp)
  3b:	48 89 74 24 10       	mov    %rsi,0x10(%rsp)

Code starting with the faulting instruction
===========================================
   0:	48 3d 00 f0 ff ff    	cmp    $0xfffffffffffff000,%rax
   6:	77 51                	ja     0x59
   8:	c3                   	ret
   9:	48 83 ec 28          	sub    $0x28,%rsp
   d:	89 54 24 1c          	mov    %edx,0x1c(%rsp)
  11:	48 89 74 24 10       	mov    %rsi,0x10(%rsp)
[  726.450961][ T7048] RSP: 002b:00007ffdd8350508 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[  726.451434][ T7048] RAX: ffffffffffffffda RBX: 00007ffdd8350c40 RCX: 00007f3d154de1e7
[  726.451922][ T7048] RDX: 0000000000000000 RSI: 00007ffdd8350570 RDI: 0000000000000005
[  726.452415][ T7048] RBP: 0000000000000006 R08: 0000000000000078 R09: 0000000000000000
[  726.452890][ T7048] R10: 00007f3d1556cac0 R11: 0000000000000246 R12: 00007ffdd8350c78
[  726.453374][ T7048] R13: 00000000686e7b26 R14: 0000000000499600 R15: 00007ffdd8350660
| [  730.465519][ T7078] ------------[ cut here ]------------
| [ 730.465858][ T7078] WARNING: CPU: 2 PID: 7078 at ./include/net/netdev_lock.h:17 netif_set_mtu_ext (./include/net/netdev_lock.h:17 ./include/net/netdev_lock.h:15 ./include/net/netdev_lock.h:25 net/core/dev.c:9610) 
| [  730.466486][ T7078] Modules linked in: sctp act_gact cls_flower sch_ingress vxlan ip6_gre gre [last unloaded: test_bpf]
| [  730.467756][ T7078] Tainted: [W]=WARN
[  730.468008][ T7078] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 730.468399][ T7078] RIP: 0010:netif_set_mtu_ext (./include/net/netdev_lock.h:17 ./include/net/netdev_lock.h:15 ./include/net/netdev_lock.h:25 net/core/dev.c:9610) 
[ 730.468727][ T7078] Code: 00 00 8b 05 77 04 bc 02 85 c0 0f 84 52 fe ff ff 48 8d bb c0 0c 00 00 be ff ff ff ff e8 da fc 9b 00 85 c0 0f 85 39 fe ff ff 90 <0f> 0b 90 e9 30 fe ff ff 48 b8 00 00 00 00 00 fc ff df 4c 89 fa 48
All code
========
   0:	00 00                	add    %al,(%rax)
   2:	8b 05 77 04 bc 02    	mov    0x2bc0477(%rip),%eax        # 0x2bc047f
   8:	85 c0                	test   %eax,%eax
   a:	0f 84 52 fe ff ff    	je     0xfffffffffffffe62
  10:	48 8d bb c0 0c 00 00 	lea    0xcc0(%rbx),%rdi
  17:	be ff ff ff ff       	mov    $0xffffffff,%esi
  1c:	e8 da fc 9b 00       	call   0x9bfcfb
  21:	85 c0                	test   %eax,%eax
  23:	0f 85 39 fe ff ff    	jne    0xfffffffffffffe62
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	e9 30 fe ff ff       	jmp    0xfffffffffffffe62
  32:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
  39:	fc ff df 
  3c:	4c 89 fa             	mov    %r15,%rdx
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	e9 30 fe ff ff       	jmp    0xfffffffffffffe38
   8:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
   f:	fc ff df 
  12:	4c 89 fa             	mov    %r15,%rdx
  15:	48                   	rex.W
[  730.469859][ T7078] RSP: 0018:ffffc9000aed7080 EFLAGS: 00010246
[  730.470274][ T7078] RAX: 0000000000000000 RBX: ffff88800596a000 RCX: 0000000000000001
[  730.470741][ T7078] RDX: 0000000000000000 RSI: ffffffff93510751 RDI: ffffffff92c58280
[  730.471211][ T7078] RBP: ffffc9000aed7168 R08: 0000000000000000 R09: 0000000000000000
[  730.471674][ T7078] R10: ffffc9000aed7198 R11: ffffffff93f8d1e0 R12: 1ffff920015dae14
[  730.472163][ T7078] R13: 00000000000005dc R14: ffffc9000aed7198 R15: ffff88800596af48
[  730.472626][ T7078] FS:  00007f69ef766800(0000) GS:ffff8880d7499000(0000) knlGS:0000000000000000
[  730.473187][ T7078] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  730.473597][ T7078] CR2: 00007f69ef951ba0 CR3: 0000000013832004 CR4: 0000000000772ef0
[  730.474078][ T7078] PKRU: 55555554
[  730.474320][ T7078] Call Trace:
[  730.474557][ T7078]  <TASK>
[ 730.474725][ T7078] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 730.475051][ T7078] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 730.475380][ T7078] netif_set_mtu (net/core/dev.c:9652) 
[ 730.475696][ T7078] ? __pfx_netif_set_mtu (net/core/dev.c:9647) 
[ 730.476034][ T7078] dev_set_mtu (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:47 net/core/dev_api.c:249) 
[ 730.476278][ T7078] br_mtu_auto_adjust (net/bridge/br_if.c:525) 
[ 730.476601][ T7078] br_add_if (net/bridge/br_if.c:697) 
[ 730.476860][ T7078] do_set_master (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:41 net/core/rtnetlink.c:2949) 
[ 730.477193][ T7078] ? rtnl_configure_link (net/core/rtnetlink.c:3592) 
[ 730.477513][ T7078] rtnl_newlink_create (net/core/rtnetlink.c:3840) 
[ 730.477827][ T7078] ? __pfx_rtnl_newlink_create (net/core/rtnetlink.c:3791) 
[ 730.478149][ T7078] ? __dev_get_by_name (net/core/dev.c:865) 
[ 730.478465][ T7078] ? rtnl_dev_get (net/core/rtnetlink.c:3404) 
[ 730.478784][ T7078] ? __pfx_rtnl_dev_get (net/core/rtnetlink.c:3404) 
[ 730.479112][ T7078] ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4056) 
[ 730.479425][ T7078] ? reacquire_held_locks (kernel/locking/lockdep.c:5388) 
[ 730.479743][ T7078] __rtnl_newlink (net/core/rtnetlink.c:3942) 
[ 730.480076][ T7078] rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4058) 
[ 730.480405][ T7078] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 730.480730][ T7078] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/rtnetlink.c:6944) 
[ 730.481063][ T7078] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 730.481386][ T7078] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 730.481700][ T7078] rtnetlink_rcv_msg (net/core/rtnetlink.c:6946) 
[ 730.482036][ T7078] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 730.482355][ T7078] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 730.482672][ T7078] netlink_rcv_skb (net/netlink/af_netlink.c:2551) 
[ 730.483000][ T7078] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 730.483321][ T7078] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2528) 
[ 730.483654][ T7078] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/netlink/af_netlink.c:340) 
[ 730.483976][ T7078] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 ./include/net/netns/generic.h:48 net/netlink/af_netlink.c:333) 
[ 730.484294][ T7078] netlink_unicast (net/netlink/af_netlink.c:1321 net/netlink/af_netlink.c:1346) 
[ 730.484610][ T7078] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1331) 
[ 730.484924][ T7078] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 730.485263][ T7078] netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 730.485587][ T7078] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1815) 
[ 730.485908][ T7078] ? __import_iovec (lib/iov_iter.c:1441 lib/iov_iter.c:1456) 
[ 730.486241][ T7078] ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 730.486557][ T7078] ? __pfx_____sys_sendmsg (net/socket.c:2560) 
[ 730.486870][ T7078] ? __pfx_copy_msghdr_from_user (net/socket.c:2540) 
[ 730.487274][ T7078] ? debug_object_activate (lib/debugobjects.c:837) 
[ 730.487588][ T7078] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 730.487903][ T7078] ___sys_sendmsg (net/socket.c:2670) 
[ 730.488228][ T7078] ? __pfx____sys_sendmsg (net/socket.c:2657) 
[ 730.488547][ T7078] ? rcu_read_lock_any_held (kernel/rcu/update.c:386 kernel/rcu/update.c:380) 
[ 730.488869][ T7078] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 730.489209][ T7078] ? sched_balance_domains (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 kernel/sched/fair.c:12271) 
[ 730.489530][ T7078] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 730.489847][ T7078] ? sched_balance_domains (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 kernel/sched/fair.c:12271) 
[ 730.490196][ T7078] ? sched_balance_domains (kernel/sched/fair.c:12278) 
[ 730.490520][ T7078] __sys_sendmsg (net/socket.c:2700) 
[ 730.490837][ T7078] ? __pfx___sys_sendmsg (net/socket.c:2685) 
[ 730.491161][ T7078] ? __pfx_sched_balance_domains (kernel/sched/fair.c:12202) 
[ 730.491553][ T7078] ? clockevents_program_event (kernel/time/clockevents.c:334 (discriminator 3)) 
[ 730.491969][ T7078] ? handle_softirqs (./arch/x86/include/asm/preempt.h:27 kernel/softirq.c:426 kernel/softirq.c:607) 
[ 730.492291][ T7078] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 730.492606][ T7078] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 730.492925][ T7078] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[  730.493332][ T7078] RIP: 0033:0x7f69ef9331e7
[ 730.493664][ T7078] Code: 0e 00 f7 d8 64 89 02 48 c7 c0 ff ff ff ff eb b9 0f 1f 00 f3 0f 1e fa 64 8b 04 25 18 00 00 00 85 c0 75 10 b8 2e 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 51 c3 48 83 ec 28 89 54 24 1c 48 89 74 24 10
All code
========
   0:	0e                   	(bad)
   1:	00 f7                	add    %dh,%bh
   3:	d8 64 89 02          	fsubs  0x2(%rcx,%rcx,4)
   7:	48 c7 c0 ff ff ff ff 	mov    $0xffffffffffffffff,%rax
   e:	eb b9                	jmp    0xffffffffffffffc9
  10:	0f 1f 00             	nopl   (%rax)
  13:	f3 0f 1e fa          	endbr64
  17:	64 8b 04 25 18 00 00 	mov    %fs:0x18,%eax
  1e:	00 
  1f:	85 c0                	test   %eax,%eax
  21:	75 10                	jne    0x33
  23:	b8 2e 00 00 00       	mov    $0x2e,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 00 f0 ff ff    	cmp    $0xfffffffffffff000,%rax		<-- trapping instruction
  30:	77 51                	ja     0x83
  32:	c3                   	ret
  33:	48 83 ec 28          	sub    $0x28,%rsp
  37:	89 54 24 1c          	mov    %edx,0x1c(%rsp)
  3b:	48 89 74 24 10       	mov    %rsi,0x10(%rsp)

Code starting with the faulting instruction
===========================================
   0:	48 3d 00 f0 ff ff    	cmp    $0xfffffffffffff000,%rax
   6:	77 51                	ja     0x59
   8:	c3                   	ret
   9:	48 83 ec 28          	sub    $0x28,%rsp
   d:	89 54 24 1c          	mov    %edx,0x1c(%rsp)
  11:	48 89 74 24 10       	mov    %rsi,0x10(%rsp)
[  730.494759][ T7078] RSP: 002b:00007ffdfaabd718 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[  730.495242][ T7078] RAX: ffffffffffffffda RBX: 00007ffdfaabde50 RCX: 00007f69ef9331e7
[  730.495704][ T7078] RDX: 0000000000000000 RSI: 00007ffdfaabd780 RDI: 0000000000000005
[  730.496180][ T7078] RBP: 0000000000000006 R08: 0000000000000078 R09: 0000000000000000
[  730.496644][ T7078] R10: 00007f69ef9c1ac0 R11: 0000000000000246 R12: 00007ffdfaabde88
[  730.497130][ T7078] R13: 00000000686e7b2b R14: 0000000000499600 R15: 00007ffdfaabd870
| [  745.097529][ T7179] ------------[ cut here ]------------
| [ 745.097840][ T7179] WARNING: CPU: 0 PID: 7179 at ./include/net/netdev_lock.h:17 netif_set_mtu_ext (./include/net/netdev_lock.h:17 ./include/net/netdev_lock.h:15 ./include/net/netdev_lock.h:25 net/core/dev.c:9610) 
| [  745.099981][ T7179] Modules linked in: sctp act_gact cls_flower sch_ingress vxlan ip6_gre gre [last unloaded: test_bpf]
| [  745.101386][ T7179] Tainted: [W]=WARN
[  745.101615][ T7179] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 745.102151][ T7179] RIP: 0010:netif_set_mtu_ext (./include/net/netdev_lock.h:17 ./include/net/netdev_lock.h:15 ./include/net/netdev_lock.h:25 net/core/dev.c:9610) 
[ 745.102463][ T7179] Code: 00 00 8b 05 77 04 bc 02 85 c0 0f 84 52 fe ff ff 48 8d bb c0 0c 00 00 be ff ff ff ff e8 da fc 9b 00 85 c0 0f 85 39 fe ff ff 90 <0f> 0b 90 e9 30 fe ff ff 48 b8 00 00 00 00 00 fc ff df 4c 89 fa 48
All code
========
   0:	00 00                	add    %al,(%rax)
   2:	8b 05 77 04 bc 02    	mov    0x2bc0477(%rip),%eax        # 0x2bc047f
   8:	85 c0                	test   %eax,%eax
   a:	0f 84 52 fe ff ff    	je     0xfffffffffffffe62
  10:	48 8d bb c0 0c 00 00 	lea    0xcc0(%rbx),%rdi
  17:	be ff ff ff ff       	mov    $0xffffffff,%esi
  1c:	e8 da fc 9b 00       	call   0x9bfcfb
  21:	85 c0                	test   %eax,%eax
  23:	0f 85 39 fe ff ff    	jne    0xfffffffffffffe62
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	e9 30 fe ff ff       	jmp    0xfffffffffffffe62
  32:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
  39:	fc ff df 
  3c:	4c 89 fa             	mov    %r15,%rdx
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	e9 30 fe ff ff       	jmp    0xfffffffffffffe38
   8:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
   f:	fc ff df 
  12:	4c 89 fa             	mov    %r15,%rdx
  15:	48                   	rex.W
[  745.103703][ T7179] RSP: 0018:ffffc9000ac07080 EFLAGS: 00010246
[  745.104151][ T7179] RAX: 0000000000000000 RBX: ffff8880159ca000 RCX: 0000000000000001
[  745.104601][ T7179] RDX: 0000000000000000 RSI: ffffffff93510751 RDI: ffffffff92c58280
[  745.105061][ T7179] RBP: ffffc9000ac07168 R08: 0000000000000000 R09: 0000000000000000
[  745.105519][ T7179] R10: ffffc9000ac07198 R11: ffffffff93f8d1e0 R12: 1ffff92001580e14
[  745.105977][ T7179] R13: 00000000000005dc R14: ffffc9000ac07198 R15: ffff8880159caf48
[  745.106427][ T7179] FS:  00007f400ccb2800(0000) GS:ffff8880d7399000(0000) knlGS:0000000000000000
[  745.106999][ T7179] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  745.107390][ T7179] CR2: 000000000043d940 CR3: 000000000ec2d001 CR4: 0000000000772ef0
[  745.107843][ T7179] PKRU: 55555554
[  745.108079][ T7179] Call Trace:
[  745.108308][ T7179]  <TASK>
[ 745.108464][ T7179] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 745.108767][ T7179] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 745.109090][ T7179] netif_set_mtu (net/core/dev.c:9652) 
[ 745.109402][ T7179] ? __pfx_netif_set_mtu (net/core/dev.c:9647) 
[ 745.109719][ T7179] dev_set_mtu (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:47 net/core/dev_api.c:249) 
[ 745.109960][ T7179] br_mtu_auto_adjust (net/bridge/br_if.c:525) 
[ 745.110269][ T7179] br_add_if (net/bridge/br_if.c:697) 
[ 745.110508][ T7179] do_set_master (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:41 net/core/rtnetlink.c:2949) 
[ 745.110807][ T7179] ? rtnl_configure_link (net/core/rtnetlink.c:3592) 
[ 745.111118][ T7179] rtnl_newlink_create (net/core/rtnetlink.c:3840) 
[ 745.111424][ T7179] ? __pfx_rtnl_newlink_create (net/core/rtnetlink.c:3791) 
[ 745.111738][ T7179] ? __dev_get_by_name (net/core/dev.c:865) 
[ 745.112056][ T7179] ? rtnl_dev_get (net/core/rtnetlink.c:3404) 
[ 745.112360][ T7179] ? __pfx_rtnl_dev_get (net/core/rtnetlink.c:3404) 
[ 745.112669][ T7179] ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4056) 
[ 745.112981][ T7179] ? reacquire_held_locks (kernel/locking/lockdep.c:5388) 
[ 745.113288][ T7179] __rtnl_newlink (net/core/rtnetlink.c:3942) 
[ 745.113602][ T7179] rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4058) 
[ 745.113916][ T7179] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 745.114239][ T7179] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/rtnetlink.c:6944) 
[ 745.114542][ T7179] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 745.114844][ T7179] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 745.115151][ T7179] rtnetlink_rcv_msg (net/core/rtnetlink.c:6946) 
[ 745.115457][ T7179] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 745.115762][ T7179] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 745.116076][ T7179] netlink_rcv_skb (net/netlink/af_netlink.c:2551) 
[ 745.116384][ T7179] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 745.116689][ T7179] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2528) 
[ 745.117012][ T7179] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/netlink/af_netlink.c:340) 
[ 745.117321][ T7179] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 ./include/net/netns/generic.h:48 net/netlink/af_netlink.c:333) 
[ 745.117624][ T7179] netlink_unicast (net/netlink/af_netlink.c:1321 net/netlink/af_netlink.c:1346) 
[ 745.117927][ T7179] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1331) 
[ 745.118235][ T7179] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 745.118550][ T7179] netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 745.118855][ T7179] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1815) 
[ 745.119165][ T7179] ? __import_iovec (lib/iov_iter.c:1441 lib/iov_iter.c:1456) 
[ 745.119473][ T7179] ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 745.119777][ T7179] ? __pfx_____sys_sendmsg (net/socket.c:2560) 
[ 745.120085][ T7179] ? __pfx_copy_msghdr_from_user (net/socket.c:2540) 
[ 745.120472][ T7179] ___sys_sendmsg (net/socket.c:2670) 
[ 745.120781][ T7179] ? __pfx____sys_sendmsg (net/socket.c:2657) 
[ 745.121091][ T7179] ? __pfx_handle_pte_fault (mm/memory.c:6026) 
[ 745.121402][ T7179] ? reacquire_held_locks (kernel/locking/lockdep.c:5388) 
[ 745.121701][ T7179] ? do_user_addr_fault (arch/x86/mm/fault.c:1327) 
[ 745.122023][ T7179] ? __handle_mm_fault (mm/memory.c:6212) 
[ 745.122325][ T7179] ? __pfx___handle_mm_fault (mm/memory.c:6121) 
[ 745.122630][ T7179] ? lock_vma_under_rcu (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 mm/mmap_lock.c:171) 
[ 745.122965][ T7179] __sys_sendmsg (net/socket.c:2700) 
[ 745.123269][ T7179] ? __pfx___sys_sendmsg (net/socket.c:2685) 
[ 745.123570][ T7179] ? exc_page_fault (./arch/x86/include/asm/irqflags.h:26 ./arch/x86/include/asm/irqflags.h:109 ./arch/x86/include/asm/irqflags.h:151 arch/x86/mm/fault.c:1484 arch/x86/mm/fault.c:1532) 
[ 745.123881][ T7179] ? do_user_addr_fault (./arch/x86/include/asm/atomic.h:93 ./include/linux/atomic/atomic-arch-fallback.h:949 ./include/linux/atomic/atomic-instrumented.h:401 ./include/linux/refcount.h:389 ./include/linux/refcount.h:432 ./include/linux/mmap_lock.h:142 ./include/linux/mmap_lock.h:237 arch/x86/mm/fault.c:1338) 
[ 745.124193][ T7179] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 745.124497][ T7179] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 745.124802][ T7179] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[  745.125194][ T7179] RIP: 0033:0x7f400ce7f1e7
[ 745.125515][ T7179] Code: 0e 00 f7 d8 64 89 02 48 c7 c0 ff ff ff ff eb b9 0f 1f 00 f3 0f 1e fa 64 8b 04 25 18 00 00 00 85 c0 75 10 b8 2e 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 51 c3 48 83 ec 28 89 54 24 1c 48 89 74 24 10
All code
========
   0:	0e                   	(bad)
   1:	00 f7                	add    %dh,%bh
   3:	d8 64 89 02          	fsubs  0x2(%rcx,%rcx,4)
   7:	48 c7 c0 ff ff ff ff 	mov    $0xffffffffffffffff,%rax
   e:	eb b9                	jmp    0xffffffffffffffc9
  10:	0f 1f 00             	nopl   (%rax)
  13:	f3 0f 1e fa          	endbr64
  17:	64 8b 04 25 18 00 00 	mov    %fs:0x18,%eax
  1e:	00 
  1f:	85 c0                	test   %eax,%eax
  21:	75 10                	jne    0x33
  23:	b8 2e 00 00 00       	mov    $0x2e,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 00 f0 ff ff    	cmp    $0xfffffffffffff000,%rax		<-- trapping instruction
  30:	77 51                	ja     0x83
  32:	c3                   	ret
  33:	48 83 ec 28          	sub    $0x28,%rsp
  37:	89 54 24 1c          	mov    %edx,0x1c(%rsp)
  3b:	48 89 74 24 10       	mov    %rsi,0x10(%rsp)

Code starting with the faulting instruction
===========================================
   0:	48 3d 00 f0 ff ff    	cmp    $0xfffffffffffff000,%rax
   6:	77 51                	ja     0x59
   8:	c3                   	ret
   9:	48 83 ec 28          	sub    $0x28,%rsp
   d:	89 54 24 1c          	mov    %edx,0x1c(%rsp)
  11:	48 89 74 24 10       	mov    %rsi,0x10(%rsp)
[  745.126609][ T7179] RSP: 002b:00007ffff89fb598 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[  745.127087][ T7179] RAX: ffffffffffffffda RBX: 00007ffff89fbcd0 RCX: 00007f400ce7f1e7
[  745.127539][ T7179] RDX: 0000000000000000 RSI: 00007ffff89fb600 RDI: 0000000000000005
[  745.127998][ T7179] RBP: 0000000000000006 R08: 000000000000006c R09: 0000000000000000
[  745.128449][ T7179] R10: 00007f400cf0dac0 R11: 0000000000000246 R12: 00007ffff89fbd08
[  745.128906][ T7179] R13: 00000000686e7b39 R14: 0000000000499600 R15: 00007ffff89fb6f0
| [  749.056748][ T7209] ------------[ cut here ]------------
| [ 749.057087][ T7209] WARNING: CPU: 3 PID: 7209 at ./include/net/netdev_lock.h:17 netif_set_mtu_ext (./include/net/netdev_lock.h:17 ./include/net/netdev_lock.h:15 ./include/net/netdev_lock.h:25 net/core/dev.c:9610) 
| [  749.057685][ T7209] Modules linked in: sctp act_gact cls_flower sch_ingress vxlan ip6_gre gre [last unloaded: test_bpf]
| [  749.058926][ T7209] Tainted: [W]=WARN
[  749.059164][ T7209] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 749.059541][ T7209] RIP: 0010:netif_set_mtu_ext (./include/net/netdev_lock.h:17 ./include/net/netdev_lock.h:15 ./include/net/netdev_lock.h:25 net/core/dev.c:9610) 
[ 749.059848][ T7209] Code: 00 00 8b 05 77 04 bc 02 85 c0 0f 84 52 fe ff ff 48 8d bb c0 0c 00 00 be ff ff ff ff e8 da fc 9b 00 85 c0 0f 85 39 fe ff ff 90 <0f> 0b 90 e9 30 fe ff ff 48 b8 00 00 00 00 00 fc ff df 4c 89 fa 48
All code
========
   0:	00 00                	add    %al,(%rax)
   2:	8b 05 77 04 bc 02    	mov    0x2bc0477(%rip),%eax        # 0x2bc047f
   8:	85 c0                	test   %eax,%eax
   a:	0f 84 52 fe ff ff    	je     0xfffffffffffffe62
  10:	48 8d bb c0 0c 00 00 	lea    0xcc0(%rbx),%rdi
  17:	be ff ff ff ff       	mov    $0xffffffff,%esi
  1c:	e8 da fc 9b 00       	call   0x9bfcfb
  21:	85 c0                	test   %eax,%eax
  23:	0f 85 39 fe ff ff    	jne    0xfffffffffffffe62
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	e9 30 fe ff ff       	jmp    0xfffffffffffffe62
  32:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
  39:	fc ff df 
  3c:	4c 89 fa             	mov    %r15,%rdx
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	e9 30 fe ff ff       	jmp    0xfffffffffffffe38
   8:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
   f:	fc ff df 
  12:	4c 89 fa             	mov    %r15,%rdx
  15:	48                   	rex.W
[  749.060934][ T7209] RSP: 0018:ffffc9000a6f7080 EFLAGS: 00010246
[  749.061337][ T7209] RAX: 0000000000000000 RBX: ffff88800c852000 RCX: 0000000000000001
[  749.061787][ T7209] RDX: 0000000000000000 RSI: ffffffff93510751 RDI: ffffffff92c58280
[  749.062289][ T7209] RBP: ffffc9000a6f7168 R08: 0000000000000000 R09: 0000000000000000
[  749.062739][ T7209] R10: ffffc9000a6f7198 R11: ffffffff93f8d1e0 R12: 1ffff920014dee14
[  749.063195][ T7209] R13: 00000000000005dc R14: ffffc9000a6f7198 R15: ffff88800c852f48
[  749.063644][ T7209] FS:  00007f6e51fb1800(0000) GS:ffff8880d7519000(0000) knlGS:0000000000000000
[  749.064181][ T7209] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  749.064562][ T7209] CR2: 00007f6e520b1130 CR3: 0000000011d8a003 CR4: 0000000000772ef0
[  749.065030][ T7209] PKRU: 55555554
[  749.065262][ T7209] Call Trace:
[  749.065487][ T7209]  <TASK>
[ 749.065643][ T7209] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 749.065956][ T7209] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 749.066278][ T7209] netif_set_mtu (net/core/dev.c:9652) 
[ 749.066579][ T7209] ? __pfx_netif_set_mtu (net/core/dev.c:9647) 
[ 749.066895][ T7209] dev_set_mtu (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:47 net/core/dev_api.c:249) 
[ 749.067132][ T7209] br_mtu_auto_adjust (net/bridge/br_if.c:525) 
[ 749.067439][ T7209] br_add_if (net/bridge/br_if.c:697) 
[ 749.067677][ T7209] do_set_master (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:41 net/core/rtnetlink.c:2949) 
[ 749.067984][ T7209] ? rtnl_configure_link (net/core/rtnetlink.c:3592) 
[ 749.068295][ T7209] rtnl_newlink_create (net/core/rtnetlink.c:3840) 
[ 749.068600][ T7209] ? __pfx_rtnl_newlink_create (net/core/rtnetlink.c:3791) 
[ 749.068898][ T7209] ? __dev_get_by_name (net/core/dev.c:865) 
[ 749.069215][ T7209] ? rtnl_dev_get (net/core/rtnetlink.c:3404) 
[ 749.069525][ T7209] ? __pfx_rtnl_dev_get (net/core/rtnetlink.c:3404) 
[ 749.069830][ T7209] ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4056) 
[ 749.070134][ T7209] ? reacquire_held_locks (kernel/locking/lockdep.c:5388) 
[ 749.070440][ T7209] __rtnl_newlink (net/core/rtnetlink.c:3942) 
[ 749.070757][ T7209] rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4058) 
[ 749.071070][ T7209] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 749.071383][ T7209] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/rtnetlink.c:6944) 
[ 749.071684][ T7209] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 749.072032][ T7209] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 749.072333][ T7209] rtnetlink_rcv_msg (net/core/rtnetlink.c:6946) 
[ 749.072636][ T7209] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 749.072965][ T7209] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 749.073272][ T7209] netlink_rcv_skb (net/netlink/af_netlink.c:2551) 
[ 749.073573][ T7209] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 749.073874][ T7209] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2528) 
[ 749.074193][ T7209] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/netlink/af_netlink.c:340) 
[ 749.074491][ T7209] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 ./include/net/netns/generic.h:48 net/netlink/af_netlink.c:333) 
[ 749.074793][ T7209] netlink_unicast (net/netlink/af_netlink.c:1321 net/netlink/af_netlink.c:1346) 
[ 749.075149][ T7209] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1331) 
[ 749.075451][ T7209] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 749.075757][ T7209] netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 749.076074][ T7209] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1815) 
[ 749.076386][ T7209] ? __import_iovec (lib/iov_iter.c:1441 lib/iov_iter.c:1456) 
[ 749.076694][ T7209] ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 749.077005][ T7209] ? __pfx_____sys_sendmsg (net/socket.c:2560) 
[ 749.077305][ T7209] ? __pfx_copy_msghdr_from_user (net/socket.c:2540) 
[ 749.077695][ T7209] ___sys_sendmsg (net/socket.c:2670) 
[ 749.078006][ T7209] ? __pfx____sys_sendmsg (net/socket.c:2657) 
[ 749.078306][ T7209] ? __pfx_handle_pte_fault (mm/memory.c:6026) 
[ 749.078609][ T7209] ? reacquire_held_locks (kernel/locking/lockdep.c:5388) 
[ 749.078909][ T7209] ? do_user_addr_fault (arch/x86/mm/fault.c:1327) 
[ 749.079218][ T7209] ? __handle_mm_fault (mm/memory.c:6212) 
[ 749.079524][ T7209] ? __pfx___handle_mm_fault (mm/memory.c:6121) 
[ 749.079820][ T7209] ? lock_vma_under_rcu (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 mm/mmap_lock.c:171) 
[ 749.080149][ T7209] __sys_sendmsg (net/socket.c:2700) 
[ 749.080451][ T7209] ? __pfx___sys_sendmsg (net/socket.c:2685) 
[ 749.080750][ T7209] ? exc_page_fault (./arch/x86/include/asm/irqflags.h:26 ./arch/x86/include/asm/irqflags.h:109 ./arch/x86/include/asm/irqflags.h:151 arch/x86/mm/fault.c:1484 arch/x86/mm/fault.c:1532) 
[ 749.081074][ T7209] ? do_user_addr_fault (./arch/x86/include/asm/atomic.h:93 ./include/linux/atomic/atomic-arch-fallback.h:949 ./include/linux/atomic/atomic-instrumented.h:401 ./include/linux/refcount.h:389 ./include/linux/refcount.h:432 ./include/linux/mmap_lock.h:142 ./include/linux/mmap_lock.h:237 arch/x86/mm/fault.c:1338) 
[ 749.081388][ T7209] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 749.081697][ T7209] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 749.082049][ T7209] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[  749.082423][ T7209] RIP: 0033:0x7f6e5217e1e7
[ 749.082732][ T7209] Code: 0e 00 f7 d8 64 89 02 48 c7 c0 ff ff ff ff eb b9 0f 1f 00 f3 0f 1e fa 64 8b 04 25 18 00 00 00 85 c0 75 10 b8 2e 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 51 c3 48 83 ec 28 89 54 24 1c 48 89 74 24 10
All code
========
   0:	0e                   	(bad)
   1:	00 f7                	add    %dh,%bh
   3:	d8 64 89 02          	fsubs  0x2(%rcx,%rcx,4)
   7:	48 c7 c0 ff ff ff ff 	mov    $0xffffffffffffffff,%rax
   e:	eb b9                	jmp    0xffffffffffffffc9
  10:	0f 1f 00             	nopl   (%rax)
  13:	f3 0f 1e fa          	endbr64
  17:	64 8b 04 25 18 00 00 	mov    %fs:0x18,%eax
  1e:	00 
  1f:	85 c0                	test   %eax,%eax
  21:	75 10                	jne    0x33
  23:	b8 2e 00 00 00       	mov    $0x2e,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 00 f0 ff ff    	cmp    $0xfffffffffffff000,%rax		<-- trapping instruction
  30:	77 51                	ja     0x83
  32:	c3                   	ret
  33:	48 83 ec 28          	sub    $0x28,%rsp
  37:	89 54 24 1c          	mov    %edx,0x1c(%rsp)
  3b:	48 89 74 24 10       	mov    %rsi,0x10(%rsp)

Code starting with the faulting instruction
===========================================
   0:	48 3d 00 f0 ff ff    	cmp    $0xfffffffffffff000,%rax
   6:	77 51                	ja     0x59
   8:	c3                   	ret
   9:	48 83 ec 28          	sub    $0x28,%rsp
   d:	89 54 24 1c          	mov    %edx,0x1c(%rsp)
  11:	48 89 74 24 10       	mov    %rsi,0x10(%rsp)
[  749.083817][ T7209] RSP: 002b:00007ffc116adc18 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[  749.084282][ T7209] RAX: ffffffffffffffda RBX: 00007ffc116ae350 RCX: 00007f6e5217e1e7
[  749.084733][ T7209] RDX: 0000000000000000 RSI: 00007ffc116adc80 RDI: 0000000000000005
[  749.085199][ T7209] RBP: 0000000000000006 R08: 000000000000006c R09: 0000000000000000
[  749.085650][ T7209] R10: 00007f6e5220cac0 R11: 0000000000000246 R12: 00007ffc116ae388
[  749.086115][ T7209] R13: 00000000686e7b3d R14: 0000000000499600 R15: 00007ffc116add70
| [  755.892012][ T7274] ------------[ cut here ]------------
| [ 755.892334][ T7274] WARNING: CPU: 1 PID: 7274 at ./include/net/netdev_lock.h:17 netif_set_mtu_ext (./include/net/netdev_lock.h:17 ./include/net/netdev_lock.h:15 ./include/net/netdev_lock.h:25 net/core/dev.c:9610) 
| [  755.892958][ T7274] Modules linked in: sctp act_gact cls_flower sch_ingress vxlan ip6_gre gre [last unloaded: test_bpf]
| [  755.894248][ T7274] Tainted: [W]=WARN
[  755.894486][ T7274] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 755.894865][ T7274] RIP: 0010:netif_set_mtu_ext (./include/net/netdev_lock.h:17 ./include/net/netdev_lock.h:15 ./include/net/netdev_lock.h:25 net/core/dev.c:9610) 
[ 755.896006][ T7274] Code: 00 00 8b 05 77 04 bc 02 85 c0 0f 84 52 fe ff ff 48 8d bb c0 0c 00 00 be ff ff ff ff e8 da fc 9b 00 85 c0 0f 85 39 fe ff ff 90 <0f> 0b 90 e9 30 fe ff ff 48 b8 00 00 00 00 00 fc ff df 4c 89 fa 48
All code
========
   0:	00 00                	add    %al,(%rax)
   2:	8b 05 77 04 bc 02    	mov    0x2bc0477(%rip),%eax        # 0x2bc047f
   8:	85 c0                	test   %eax,%eax
   a:	0f 84 52 fe ff ff    	je     0xfffffffffffffe62
  10:	48 8d bb c0 0c 00 00 	lea    0xcc0(%rbx),%rdi
  17:	be ff ff ff ff       	mov    $0xffffffff,%esi
  1c:	e8 da fc 9b 00       	call   0x9bfcfb
  21:	85 c0                	test   %eax,%eax
  23:	0f 85 39 fe ff ff    	jne    0xfffffffffffffe62
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	e9 30 fe ff ff       	jmp    0xfffffffffffffe62
  32:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
  39:	fc ff df 
  3c:	4c 89 fa             	mov    %r15,%rdx
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	e9 30 fe ff ff       	jmp    0xfffffffffffffe38
   8:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
   f:	fc ff df 
  12:	4c 89 fa             	mov    %r15,%rdx
  15:	48                   	rex.W
[  755.897112][ T7274] RSP: 0018:ffffc90009467080 EFLAGS: 00010246
[  755.897496][ T7274] RAX: 0000000000000000 RBX: ffff888012302000 RCX: 0000000000000001
[  755.897970][ T7274] RDX: 0000000000000000 RSI: ffffffff93510751 RDI: ffffffff92c58280
[  755.898433][ T7274] RBP: ffffc90009467168 R08: 0000000000000000 R09: 0000000000000000
[  755.898891][ T7274] R10: ffffc90009467198 R11: ffffffff93f8d1e0 R12: 1ffff9200128ce14
[  755.899351][ T7274] R13: 00000000000005dc R14: ffffc90009467198 R15: ffff888012302f48
[  755.899807][ T7274] FS:  00007f24c8ba8800(0000) GS:ffff8880d7419000(0000) knlGS:0000000000000000
[  755.900347][ T7274] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  755.900734][ T7274] CR2: 00007f24c8d93ba0 CR3: 00000000124c1006 CR4: 0000000000772ef0
[  755.901211][ T7274] PKRU: 55555554
[  755.901441][ T7274] Call Trace:
[  755.901670][ T7274]  <TASK>
[ 755.901828][ T7274] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 755.902160][ T7274] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 755.902484][ T7274] netif_set_mtu (net/core/dev.c:9652) 
[ 755.902788][ T7274] ? __pfx_netif_set_mtu (net/core/dev.c:9647) 
[ 755.903121][ T7274] dev_set_mtu (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:47 net/core/dev_api.c:249) 
[ 755.903354][ T7274] br_mtu_auto_adjust (net/bridge/br_if.c:525) 
[ 755.903660][ T7274] br_add_if (net/bridge/br_if.c:697) 
[ 755.903901][ T7274] do_set_master (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:41 net/core/rtnetlink.c:2949) 
[ 755.904213][ T7274] ? rtnl_configure_link (net/core/rtnetlink.c:3592) 
[ 755.904521][ T7274] rtnl_newlink_create (net/core/rtnetlink.c:3840) 
[ 755.904827][ T7274] ? __pfx_rtnl_newlink_create (net/core/rtnetlink.c:3791) 
[ 755.905137][ T7274] ? __dev_get_by_name (net/core/dev.c:865) 
[ 755.905449][ T7274] ? rtnl_dev_get (net/core/rtnetlink.c:3404) 
[ 755.905754][ T7274] ? __pfx_rtnl_dev_get (net/core/rtnetlink.c:3404) 
[ 755.906080][ T7274] ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4056) 
[ 755.906384][ T7274] ? reacquire_held_locks (kernel/locking/lockdep.c:5388) 
[ 755.906691][ T7274] __rtnl_newlink (net/core/rtnetlink.c:3942) 
[ 755.907014][ T7274] rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4058) 
[ 755.907324][ T7274] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 755.907637][ T7274] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/rtnetlink.c:6944) 
[ 755.907950][ T7274] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 755.908256][ T7274] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 755.908558][ T7274] rtnetlink_rcv_msg (net/core/rtnetlink.c:6946) 
[ 755.908860][ T7274] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 755.909176][ T7274] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 755.909489][ T7274] netlink_rcv_skb (net/netlink/af_netlink.c:2551) 
[ 755.909796][ T7274] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 755.910129][ T7274] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2528) 
[ 755.910446][ T7274] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/netlink/af_netlink.c:340) 
[ 755.910745][ T7274] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 ./include/net/netns/generic.h:48 net/netlink/af_netlink.c:333) 
[ 755.911056][ T7274] netlink_unicast (net/netlink/af_netlink.c:1321 net/netlink/af_netlink.c:1346) 
[ 755.911361][ T7274] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1331) 
[ 755.911661][ T7274] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 755.911982][ T7274] netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 755.912296][ T7274] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1815) 
[ 755.912599][ T7274] ? __import_iovec (lib/iov_iter.c:1441 lib/iov_iter.c:1456) 
[ 755.912908][ T7274] ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 755.913223][ T7274] ? __pfx_____sys_sendmsg (net/socket.c:2560) 
[ 755.913524][ T7274] ? __pfx_copy_msghdr_from_user (net/socket.c:2540) 
[ 755.913912][ T7274] ___sys_sendmsg (net/socket.c:2670) 
[ 755.914237][ T7274] ? __pfx____sys_sendmsg (net/socket.c:2657) 
[ 755.914558][ T7274] ? rcu_read_lock_any_held (kernel/rcu/update.c:386 kernel/rcu/update.c:380) 
[ 755.914862][ T7274] ? rcu_read_lock_any_held (kernel/rcu/update.c:386 kernel/rcu/update.c:380) 
[ 755.915171][ T7274] ? validate_chain (kernel/locking/lockdep.c:3804 kernel/locking/lockdep.c:3824 kernel/locking/lockdep.c:3879) 
[ 755.915479][ T7274] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 755.915788][ T7274] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 755.916104][ T7274] __sys_sendmsg (net/socket.c:2700) 
[ 755.916409][ T7274] ? __pfx___sys_sendmsg (net/socket.c:2685) 
[ 755.916730][ T7274] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 755.917044][ T7274] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 755.917353][ T7274] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[  755.917729][ T7274] RIP: 0033:0x7f24c8d751e7
[ 755.918065][ T7274] Code: 0e 00 f7 d8 64 89 02 48 c7 c0 ff ff ff ff eb b9 0f 1f 00 f3 0f 1e fa 64 8b 04 25 18 00 00 00 85 c0 75 10 b8 2e 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 51 c3 48 83 ec 28 89 54 24 1c 48 89 74 24 10
All code
========
   0:	0e                   	(bad)
   1:	00 f7                	add    %dh,%bh
   3:	d8 64 89 02          	fsubs  0x2(%rcx,%rcx,4)
   7:	48 c7 c0 ff ff ff ff 	mov    $0xffffffffffffffff,%rax
   e:	eb b9                	jmp    0xffffffffffffffc9
  10:	0f 1f 00             	nopl   (%rax)
  13:	f3 0f 1e fa          	endbr64
  17:	64 8b 04 25 18 00 00 	mov    %fs:0x18,%eax
  1e:	00 
  1f:	85 c0                	test   %eax,%eax
  21:	75 10                	jne    0x33
  23:	b8 2e 00 00 00       	mov    $0x2e,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 00 f0 ff ff    	cmp    $0xfffffffffffff000,%rax		<-- trapping instruction
  30:	77 51                	ja     0x83
  32:	c3                   	ret
  33:	48 83 ec 28          	sub    $0x28,%rsp
  37:	89 54 24 1c          	mov    %edx,0x1c(%rsp)
  3b:	48 89 74 24 10       	mov    %rsi,0x10(%rsp)

Code starting with the faulting instruction
===========================================
   0:	48 3d 00 f0 ff ff    	cmp    $0xfffffffffffff000,%rax
   6:	77 51                	ja     0x59
   8:	c3                   	ret
   9:	48 83 ec 28          	sub    $0x28,%rsp
   d:	89 54 24 1c          	mov    %edx,0x1c(%rsp)
  11:	48 89 74 24 10       	mov    %rsi,0x10(%rsp)
[  755.919162][ T7274] RSP: 002b:00007ffd73a6c3a8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[  755.919621][ T7274] RAX: ffffffffffffffda RBX: 00007ffd73a6cae0 RCX: 00007f24c8d751e7
[  755.920107][ T7274] RDX: 0000000000000000 RSI: 00007ffd73a6c410 RDI: 0000000000000005
[  755.920561][ T7274] RBP: 0000000000000006 R08: 0000000000000078 R09: 0000000000000000
[  755.921031][ T7274] R10: 00007f24c8e03ac0 R11: 0000000000000246 R12: 00007ffd73a6cb18
[  755.921485][ T7274] R13: 00000000686e7b44 R14: 0000000000499600 R15: 00007ffd73a6c500
| [  760.053778][ T7304] ------------[ cut here ]------------
| [ 760.054115][ T7304] WARNING: CPU: 3 PID: 7304 at ./include/net/netdev_lock.h:17 netif_set_mtu_ext (./include/net/netdev_lock.h:17 ./include/net/netdev_lock.h:15 ./include/net/netdev_lock.h:25 net/core/dev.c:9610) 
| [  760.054715][ T7304] Modules linked in: sctp act_gact cls_flower sch_ingress vxlan ip6_gre gre [last unloaded: test_bpf]
| [  760.056036][ T7304] Tainted: [W]=WARN
[  760.056271][ T7304] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 760.056651][ T7304] RIP: 0010:netif_set_mtu_ext (./include/net/netdev_lock.h:17 ./include/net/netdev_lock.h:15 ./include/net/netdev_lock.h:25 net/core/dev.c:9610) 
[ 760.057147][ T7304] Code: 00 00 8b 05 77 04 bc 02 85 c0 0f 84 52 fe ff ff 48 8d bb c0 0c 00 00 be ff ff ff ff e8 da fc 9b 00 85 c0 0f 85 39 fe ff ff 90 <0f> 0b 90 e9 30 fe ff ff 48 b8 00 00 00 00 00 fc ff df 4c 89 fa 48
All code
========
   0:	00 00                	add    %al,(%rax)
   2:	8b 05 77 04 bc 02    	mov    0x2bc0477(%rip),%eax        # 0x2bc047f
   8:	85 c0                	test   %eax,%eax
   a:	0f 84 52 fe ff ff    	je     0xfffffffffffffe62
  10:	48 8d bb c0 0c 00 00 	lea    0xcc0(%rbx),%rdi
  17:	be ff ff ff ff       	mov    $0xffffffff,%esi
  1c:	e8 da fc 9b 00       	call   0x9bfcfb
  21:	85 c0                	test   %eax,%eax
  23:	0f 85 39 fe ff ff    	jne    0xfffffffffffffe62
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	e9 30 fe ff ff       	jmp    0xfffffffffffffe62
  32:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
  39:	fc ff df 
  3c:	4c 89 fa             	mov    %r15,%rdx
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	e9 30 fe ff ff       	jmp    0xfffffffffffffe38
   8:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
   f:	fc ff df 
  12:	4c 89 fa             	mov    %r15,%rdx
  15:	48                   	rex.W
[  760.058431][ T7304] RSP: 0018:ffffc90009077080 EFLAGS: 00010246
[  760.058815][ T7304] RAX: 0000000000000000 RBX: ffff88800b9d2000 RCX: 0000000000000001
[  760.059410][ T7304] RDX: 0000000000000000 RSI: ffffffff93510751 RDI: ffffffff92c58280
[  760.059869][ T7304] RBP: ffffc90009077168 R08: 0000000000000000 R09: 0000000000000000
[  760.060494][ T7304] R10: ffffc90009077198 R11: ffffffff93f8d1e0 R12: 1ffff9200120ee14
[  760.061137][ T7304] R13: 00000000000005dc R14: ffffc90009077198 R15: ffff88800b9d2f48
[  760.061597][ T7304] FS:  00007ff1c2fa7800(0000) GS:ffff8880d7519000(0000) knlGS:0000000000000000
[  760.062302][ T7304] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  760.062687][ T7304] CR2: 00007ff1c3192ba0 CR3: 000000001211f001 CR4: 0000000000772ef0
[  760.063190][ T7304] PKRU: 55555554
[  760.063416][ T7304] Call Trace:
[  760.063643][ T7304]  <TASK>
[ 760.063800][ T7304] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 760.064115][ T7304] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 760.064441][ T7304] netif_set_mtu (net/core/dev.c:9652) 
[ 760.064746][ T7304] ? __pfx_netif_set_mtu (net/core/dev.c:9647) 
[ 760.065099][ T7304] dev_set_mtu (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:47 net/core/dev_api.c:249) 
[ 760.065347][ T7304] br_mtu_auto_adjust (net/bridge/br_if.c:525) 
[ 760.065657][ T7304] br_add_if (net/bridge/br_if.c:697) 
[ 760.065897][ T7304] do_set_master (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:41 net/core/rtnetlink.c:2949) 
[ 760.066207][ T7304] ? rtnl_configure_link (net/core/rtnetlink.c:3592) 
[ 760.066518][ T7304] rtnl_newlink_create (net/core/rtnetlink.c:3840) 
[ 760.066831][ T7304] ? __pfx_rtnl_newlink_create (net/core/rtnetlink.c:3791) 
[ 760.067138][ T7304] ? __dev_get_by_name (net/core/dev.c:865) 
[ 760.067440][ T7304] ? rtnl_dev_get (net/core/rtnetlink.c:3404) 
[ 760.067741][ T7304] ? __pfx_rtnl_dev_get (net/core/rtnetlink.c:3404) 
[ 760.068057][ T7304] ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4056) 
[ 760.068358][ T7304] ? reacquire_held_locks (kernel/locking/lockdep.c:5388) 
[ 760.068666][ T7304] __rtnl_newlink (net/core/rtnetlink.c:3942) 
[ 760.069012][ T7304] rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4058) 
[ 760.069340][ T7304] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 760.069655][ T7304] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/rtnetlink.c:6944) 
[ 760.069970][ T7304] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 760.070276][ T7304] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 760.070583][ T7304] rtnetlink_rcv_msg (net/core/rtnetlink.c:6946) 
[ 760.070890][ T7304] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 760.071207][ T7304] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 760.071525][ T7304] netlink_rcv_skb (net/netlink/af_netlink.c:2551) 
[ 760.071830][ T7304] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 760.072155][ T7304] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2528) 
[ 760.072470][ T7304] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/netlink/af_netlink.c:340) 
[ 760.072771][ T7304] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 ./include/net/netns/generic.h:48 net/netlink/af_netlink.c:333) 
[ 760.073104][ T7304] netlink_unicast (net/netlink/af_netlink.c:1321 net/netlink/af_netlink.c:1346) 
[ 760.073436][ T7304] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1331) 
[ 760.073745][ T7304] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 760.074063][ T7304] netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 760.074373][ T7304] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1815) 
[ 760.074676][ T7304] ? __import_iovec (lib/iov_iter.c:1441 lib/iov_iter.c:1456) 
[ 760.074997][ T7304] ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 760.075300][ T7304] ? __pfx_____sys_sendmsg (net/socket.c:2560) 
[ 760.075599][ T7304] ? __pfx_copy_msghdr_from_user (net/socket.c:2540) 
[ 760.076002][ T7304] ___sys_sendmsg (net/socket.c:2670) 
[ 760.076312][ T7304] ? __pfx____sys_sendmsg (net/socket.c:2657) 
[ 760.076617][ T7304] ? rcu_read_lock_any_held (kernel/rcu/update.c:386 kernel/rcu/update.c:380) 
[ 760.076921][ T7304] ? rcu_read_lock_any_held (kernel/rcu/update.c:386 kernel/rcu/update.c:380) 
[ 760.077239][ T7304] ? validate_chain (kernel/locking/lockdep.c:3804 kernel/locking/lockdep.c:3824 kernel/locking/lockdep.c:3879) 
[ 760.077573][ T7304] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 760.077883][ T7304] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 760.078205][ T7304] __sys_sendmsg (net/socket.c:2700) 
[ 760.078511][ T7304] ? __pfx___sys_sendmsg (net/socket.c:2685) 
[ 760.078825][ T7304] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 760.079137][ T7304] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 760.079442][ T7304] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[  760.079814][ T7304] RIP: 0033:0x7ff1c31741e7
[ 760.080135][ T7304] Code: 0e 00 f7 d8 64 89 02 48 c7 c0 ff ff ff ff eb b9 0f 1f 00 f3 0f 1e fa 64 8b 04 25 18 00 00 00 85 c0 75 10 b8 2e 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 51 c3 48 83 ec 28 89 54 24 1c 48 89 74 24 10
All code
========
   0:	0e                   	(bad)
   1:	00 f7                	add    %dh,%bh
   3:	d8 64 89 02          	fsubs  0x2(%rcx,%rcx,4)
   7:	48 c7 c0 ff ff ff ff 	mov    $0xffffffffffffffff,%rax
   e:	eb b9                	jmp    0xffffffffffffffc9
  10:	0f 1f 00             	nopl   (%rax)
  13:	f3 0f 1e fa          	endbr64
  17:	64 8b 04 25 18 00 00 	mov    %fs:0x18,%eax
  1e:	00 
  1f:	85 c0                	test   %eax,%eax
  21:	75 10                	jne    0x33
  23:	b8 2e 00 00 00       	mov    $0x2e,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 00 f0 ff ff    	cmp    $0xfffffffffffff000,%rax		<-- trapping instruction
  30:	77 51                	ja     0x83
  32:	c3                   	ret
  33:	48 83 ec 28          	sub    $0x28,%rsp
  37:	89 54 24 1c          	mov    %edx,0x1c(%rsp)
  3b:	48 89 74 24 10       	mov    %rsi,0x10(%rsp)

Code starting with the faulting instruction
===========================================
   0:	48 3d 00 f0 ff ff    	cmp    $0xfffffffffffff000,%rax
   6:	77 51                	ja     0x59
   8:	c3                   	ret
   9:	48 83 ec 28          	sub    $0x28,%rsp
   d:	89 54 24 1c          	mov    %edx,0x1c(%rsp)
  11:	48 89 74 24 10       	mov    %rsi,0x10(%rsp)
[  760.081251][ T7304] RSP: 002b:00007ffc8e221998 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[  760.081732][ T7304] RAX: ffffffffffffffda RBX: 00007ffc8e2220d0 RCX: 00007ff1c31741e7
[  760.082209][ T7304] RDX: 0000000000000000 RSI: 00007ffc8e221a00 RDI: 0000000000000005
[  760.082667][ T7304] RBP: 0000000000000006 R08: 0000000000000078 R09: 0000000000000000
[  760.083127][ T7304] R10: 00007ff1c3202ac0 R11: 0000000000000246 R12: 00007ffc8e222108
[  760.083579][ T7304] R13: 00000000686e7b48 R14: 0000000000499600 R15: 00007ffc8e221af0
| [  820.802472][ T7666] ------------[ cut here ]------------
| [ 820.802787][ T7666] WARNING: CPU: 1 PID: 7666 at ./include/net/netdev_lock.h:17 netif_set_mtu_ext (./include/net/netdev_lock.h:17 ./include/net/netdev_lock.h:15 ./include/net/netdev_lock.h:25 net/core/dev.c:9610) 
| [  820.803391][ T7666] Modules linked in: sctp act_gact cls_flower sch_ingress vxlan ip6_gre gre [last unloaded: test_bpf]
| [  820.804629][ T7666] Tainted: [W]=WARN
[  820.804855][ T7666] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 820.805238][ T7666] RIP: 0010:netif_set_mtu_ext (./include/net/netdev_lock.h:17 ./include/net/netdev_lock.h:15 ./include/net/netdev_lock.h:25 net/core/dev.c:9610) 
[ 820.805547][ T7666] Code: 00 00 8b 05 77 04 bc 02 85 c0 0f 84 52 fe ff ff 48 8d bb c0 0c 00 00 be ff ff ff ff e8 da fc 9b 00 85 c0 0f 85 39 fe ff ff 90 <0f> 0b 90 e9 30 fe ff ff 48 b8 00 00 00 00 00 fc ff df 4c 89 fa 48
All code
========
   0:	00 00                	add    %al,(%rax)
   2:	8b 05 77 04 bc 02    	mov    0x2bc0477(%rip),%eax        # 0x2bc047f
   8:	85 c0                	test   %eax,%eax
   a:	0f 84 52 fe ff ff    	je     0xfffffffffffffe62
  10:	48 8d bb c0 0c 00 00 	lea    0xcc0(%rbx),%rdi
  17:	be ff ff ff ff       	mov    $0xffffffff,%esi
  1c:	e8 da fc 9b 00       	call   0x9bfcfb
  21:	85 c0                	test   %eax,%eax
  23:	0f 85 39 fe ff ff    	jne    0xfffffffffffffe62
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	e9 30 fe ff ff       	jmp    0xfffffffffffffe62
  32:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
  39:	fc ff df 
  3c:	4c 89 fa             	mov    %r15,%rdx
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	e9 30 fe ff ff       	jmp    0xfffffffffffffe38
   8:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
   f:	fc ff df 
  12:	4c 89 fa             	mov    %r15,%rdx
  15:	48                   	rex.W
[  820.806630][ T7666] RSP: 0018:ffffc90009fc7080 EFLAGS: 00010246
[  820.807024][ T7666] RAX: 0000000000000000 RBX: ffff88800de82000 RCX: 0000000000000001
[  820.807474][ T7666] RDX: 0000000000000000 RSI: ffffffff93510751 RDI: ffffffff92c58280
[  820.807926][ T7666] RBP: ffffc90009fc7168 R08: 0000000000000000 R09: 0000000000000000
[  820.808384][ T7666] R10: ffffc90009fc7198 R11: ffffffff93f8d1e0 R12: 1ffff920013f8e14
[  820.808834][ T7666] R13: 00000000000005dc R14: ffffc90009fc7198 R15: ffff88800de82f48
[  820.809288][ T7666] FS:  00007feeb1eec800(0000) GS:ffff8880d7419000(0000) knlGS:0000000000000000
[  820.809817][ T7666] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  820.810199][ T7666] CR2: 000000000043d940 CR3: 0000000017601001 CR4: 0000000000772ef0
[  820.810652][ T7666] PKRU: 55555554
[  820.810876][ T7666] Call Trace:
[  820.811119][ T7666]  <TASK>
[ 820.811277][ T7666] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 820.811578][ T7666] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 820.811895][ T7666] netif_set_mtu (net/core/dev.c:9652) 
[ 820.812213][ T7666] ? __pfx_netif_set_mtu (net/core/dev.c:9647) 
[ 820.812531][ T7666] dev_set_mtu (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:47 net/core/dev_api.c:249) 
[ 820.812760][ T7666] br_mtu_auto_adjust (net/bridge/br_if.c:525) 
[ 820.813072][ T7666] br_add_if (net/bridge/br_if.c:697) 
[ 820.813310][ T7666] do_set_master (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:41 net/core/rtnetlink.c:2949) 
[ 820.813609][ T7666] ? rtnl_configure_link (net/core/rtnetlink.c:3592) 
[ 820.813915][ T7666] rtnl_newlink_create (net/core/rtnetlink.c:3840) 
[ 820.814232][ T7666] ? __pfx_rtnl_newlink_create (net/core/rtnetlink.c:3791) 
[ 820.814532][ T7666] ? __dev_get_by_name (net/core/dev.c:865) 
[ 820.814832][ T7666] ? rtnl_dev_get (net/core/rtnetlink.c:3404) 
[ 820.815138][ T7666] ? __pfx_rtnl_dev_get (net/core/rtnetlink.c:3404) 
[ 820.815442][ T7666] ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4056) 
[ 820.815739][ T7666] ? reacquire_held_locks (kernel/locking/lockdep.c:5388) 
[ 820.816053][ T7666] __rtnl_newlink (net/core/rtnetlink.c:3942) 
[ 820.816365][ T7666] rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4058) 
[ 820.816671][ T7666] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 820.816988][ T7666] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/rtnetlink.c:6944) 
[ 820.817287][ T7666] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 820.817591][ T7666] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 820.817889][ T7666] rtnetlink_rcv_msg (net/core/rtnetlink.c:6946) 
[ 820.818198][ T7666] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 820.818507][ T7666] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 820.818812][ T7666] netlink_rcv_skb (net/netlink/af_netlink.c:2551) 
[ 820.819137][ T7666] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 820.819439][ T7666] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2528) 
[ 820.819751][ T7666] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/netlink/af_netlink.c:340) 
[ 820.820066][ T7666] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 ./include/net/netns/generic.h:48 net/netlink/af_netlink.c:333) 
[ 820.820374][ T7666] netlink_unicast (net/netlink/af_netlink.c:1321 net/netlink/af_netlink.c:1346) 
[ 820.820685][ T7666] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1331) 
[ 820.820996][ T7666] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 820.821303][ T7666] netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 820.821605][ T7666] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1815) 
[ 820.821904][ T7666] ? __import_iovec (lib/iov_iter.c:1441 lib/iov_iter.c:1456) 
[ 820.822235][ T7666] ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 820.822538][ T7666] ? __pfx_____sys_sendmsg (net/socket.c:2560) 
[ 820.822835][ T7666] ? __pfx_copy_msghdr_from_user (net/socket.c:2540) 
[ 820.823236][ T7666] ___sys_sendmsg (net/socket.c:2670) 
[ 820.823538][ T7666] ? __pfx____sys_sendmsg (net/socket.c:2657) 
[ 820.823837][ T7666] ? __pfx_handle_pte_fault (mm/memory.c:6026) 
[ 820.824148][ T7666] ? reacquire_held_locks (kernel/locking/lockdep.c:5388) 
[ 820.824447][ T7666] ? do_user_addr_fault (arch/x86/mm/fault.c:1327) 
[ 820.824748][ T7666] ? __handle_mm_fault (mm/memory.c:6212) 
[ 820.825061][ T7666] ? __pfx___handle_mm_fault (mm/memory.c:6121) 
[ 820.825369][ T7666] ? lock_vma_under_rcu (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 mm/mmap_lock.c:171) 
[ 820.825689][ T7666] __sys_sendmsg (net/socket.c:2700) 
[ 820.825997][ T7666] ? __pfx___sys_sendmsg (net/socket.c:2685) 
[ 820.826298][ T7666] ? exc_page_fault (./arch/x86/include/asm/irqflags.h:26 ./arch/x86/include/asm/irqflags.h:109 ./arch/x86/include/asm/irqflags.h:151 arch/x86/mm/fault.c:1484 arch/x86/mm/fault.c:1532) 
[ 820.826605][ T7666] ? do_user_addr_fault (./arch/x86/include/asm/atomic.h:93 ./include/linux/atomic/atomic-arch-fallback.h:949 ./include/linux/atomic/atomic-instrumented.h:401 ./include/linux/refcount.h:389 ./include/linux/refcount.h:432 ./include/linux/mmap_lock.h:142 ./include/linux/mmap_lock.h:237 arch/x86/mm/fault.c:1338) 
[ 820.826906][ T7666] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 820.827217][ T7666] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 820.827524][ T7666] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[  820.827895][ T7666] RIP: 0033:0x7feeb20b91e7
[ 820.828213][ T7666] Code: 0e 00 f7 d8 64 89 02 48 c7 c0 ff ff ff ff eb b9 0f 1f 00 f3 0f 1e fa 64 8b 04 25 18 00 00 00 85 c0 75 10 b8 2e 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 51 c3 48 83 ec 28 89 54 24 1c 48 89 74 24 10
All code
========
   0:	0e                   	(bad)
   1:	00 f7                	add    %dh,%bh
   3:	d8 64 89 02          	fsubs  0x2(%rcx,%rcx,4)
   7:	48 c7 c0 ff ff ff ff 	mov    $0xffffffffffffffff,%rax
   e:	eb b9                	jmp    0xffffffffffffffc9
  10:	0f 1f 00             	nopl   (%rax)
  13:	f3 0f 1e fa          	endbr64
  17:	64 8b 04 25 18 00 00 	mov    %fs:0x18,%eax
  1e:	00 
  1f:	85 c0                	test   %eax,%eax
  21:	75 10                	jne    0x33
  23:	b8 2e 00 00 00       	mov    $0x2e,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 00 f0 ff ff    	cmp    $0xfffffffffffff000,%rax		<-- trapping instruction
  30:	77 51                	ja     0x83
  32:	c3                   	ret
  33:	48 83 ec 28          	sub    $0x28,%rsp
  37:	89 54 24 1c          	mov    %edx,0x1c(%rsp)
  3b:	48 89 74 24 10       	mov    %rsi,0x10(%rsp)

Code starting with the faulting instruction
===========================================
   0:	48 3d 00 f0 ff ff    	cmp    $0xfffffffffffff000,%rax
   6:	77 51                	ja     0x59
   8:	c3                   	ret
   9:	48 83 ec 28          	sub    $0x28,%rsp
   d:	89 54 24 1c          	mov    %edx,0x1c(%rsp)
  11:	48 89 74 24 10       	mov    %rsi,0x10(%rsp)
[  820.829290][ T7666] RSP: 002b:00007ffdb6aa0f48 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[  820.829747][ T7666] RAX: ffffffffffffffda RBX: 00007ffdb6aa1680 RCX: 00007feeb20b91e7
[  820.830204][ T7666] RDX: 0000000000000000 RSI: 00007ffdb6aa0fb0 RDI: 0000000000000005
[  820.830653][ T7666] RBP: 0000000000000006 R08: 000000000000006c R09: 0000000000000000
[  820.831110][ T7666] R10: 00007feeb2147ac0 R11: 0000000000000246 R12: 00007ffdb6aa16b8
[  820.831572][ T7666] R13: 00000000686e7b85 R14: 0000000000499600 R15: 00007ffdb6aa10a0
| [  824.618702][ T7696] ------------[ cut here ]------------
| [ 824.619045][ T7696] WARNING: CPU: 2 PID: 7696 at ./include/net/netdev_lock.h:17 netif_set_mtu_ext (./include/net/netdev_lock.h:17 ./include/net/netdev_lock.h:15 ./include/net/netdev_lock.h:25 net/core/dev.c:9610) 
| [  824.619663][ T7696] Modules linked in: sctp act_gact cls_flower sch_ingress vxlan ip6_gre gre [last unloaded: test_bpf]
| [  824.620929][ T7696] Tainted: [W]=WARN
[  824.621180][ T7696] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 824.621573][ T7696] RIP: 0010:netif_set_mtu_ext (./include/net/netdev_lock.h:17 ./include/net/netdev_lock.h:15 ./include/net/netdev_lock.h:25 net/core/dev.c:9610) 
[ 824.621896][ T7696] Code: 00 00 8b 05 77 04 bc 02 85 c0 0f 84 52 fe ff ff 48 8d bb c0 0c 00 00 be ff ff ff ff e8 da fc 9b 00 85 c0 0f 85 39 fe ff ff 90 <0f> 0b 90 e9 30 fe ff ff 48 b8 00 00 00 00 00 fc ff df 4c 89 fa 48
All code
========
   0:	00 00                	add    %al,(%rax)
   2:	8b 05 77 04 bc 02    	mov    0x2bc0477(%rip),%eax        # 0x2bc047f
   8:	85 c0                	test   %eax,%eax
   a:	0f 84 52 fe ff ff    	je     0xfffffffffffffe62
  10:	48 8d bb c0 0c 00 00 	lea    0xcc0(%rbx),%rdi
  17:	be ff ff ff ff       	mov    $0xffffffff,%esi
  1c:	e8 da fc 9b 00       	call   0x9bfcfb
  21:	85 c0                	test   %eax,%eax
  23:	0f 85 39 fe ff ff    	jne    0xfffffffffffffe62
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	e9 30 fe ff ff       	jmp    0xfffffffffffffe62
  32:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
  39:	fc ff df 
  3c:	4c 89 fa             	mov    %r15,%rdx
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	e9 30 fe ff ff       	jmp    0xfffffffffffffe38
   8:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
   f:	fc ff df 
  12:	4c 89 fa             	mov    %r15,%rdx
  15:	48                   	rex.W
[  824.623018][ T7696] RSP: 0018:ffffc90008b77080 EFLAGS: 00010246
[  824.623411][ T7696] RAX: 0000000000000000 RBX: ffff88800a72a000 RCX: 0000000000000001
[  824.623872][ T7696] RDX: 0000000000000000 RSI: ffffffff93510751 RDI: ffffffff92c58280
[  824.624349][ T7696] RBP: ffffc90008b77168 R08: 0000000000000000 R09: 0000000000000000
[  824.624820][ T7696] R10: ffffc90008b77198 R11: ffffffff93f8d1e0 R12: 1ffff9200116ee14
[  824.625292][ T7696] R13: 00000000000005dc R14: ffffc90008b77198 R15: ffff88800a72af48
[  824.625753][ T7696] FS:  00007f703379a800(0000) GS:ffff8880d7499000(0000) knlGS:0000000000000000
[  824.626300][ T7696] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  824.626693][ T7696] CR2: 0000558271118dec CR3: 000000000d964004 CR4: 0000000000772ef0
[  824.627165][ T7696] PKRU: 55555554
[  824.627402][ T7696] Call Trace:
[  824.627640][ T7696]  <TASK>
[ 824.627807][ T7696] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 824.628128][ T7696] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 824.628452][ T7696] netif_set_mtu (net/core/dev.c:9652) 
[ 824.628764][ T7696] ? __pfx_netif_set_mtu (net/core/dev.c:9647) 
[ 824.629108][ T7696] dev_set_mtu (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:47 net/core/dev_api.c:249) 
[ 824.629349][ T7696] br_mtu_auto_adjust (net/bridge/br_if.c:525) 
[ 824.629665][ T7696] br_add_if (net/bridge/br_if.c:697) 
[ 824.629914][ T7696] do_set_master (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:41 net/core/rtnetlink.c:2949) 
[ 824.630234][ T7696] ? rtnl_configure_link (net/core/rtnetlink.c:3592) 
[ 824.630548][ T7696] rtnl_newlink_create (net/core/rtnetlink.c:3840) 
[ 824.630864][ T7696] ? __pfx_rtnl_newlink_create (net/core/rtnetlink.c:3791) 
[ 824.631185][ T7696] ? __dev_get_by_name (net/core/dev.c:865) 
[ 824.631499][ T7696] ? rtnl_dev_get (net/core/rtnetlink.c:3404) 
[ 824.631809][ T7696] ? __pfx_rtnl_dev_get (net/core/rtnetlink.c:3404) 
[ 824.632142][ T7696] ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4056) 
[ 824.632451][ T7696] ? reacquire_held_locks (kernel/locking/lockdep.c:5388) 
[ 824.632768][ T7696] __rtnl_newlink (net/core/rtnetlink.c:3942) 
[ 824.633100][ T7696] rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4058) 
[ 824.633420][ T7696] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 824.633749][ T7696] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/rtnetlink.c:6944) 
[ 824.634069][ T7696] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 824.634382][ T7696] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 824.634694][ T7696] rtnetlink_rcv_msg (net/core/rtnetlink.c:6946) 
[ 824.635016][ T7696] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 824.635334][ T7696] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 824.635651][ T7696] netlink_rcv_skb (net/netlink/af_netlink.c:2551) 
[ 824.635971][ T7696] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 824.636290][ T7696] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2528) 
[ 824.636613][ T7696] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/netlink/af_netlink.c:340) 
[ 824.636925][ T7696] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 ./include/net/netns/generic.h:48 net/netlink/af_netlink.c:333) 
[ 824.637247][ T7696] netlink_unicast (net/netlink/af_netlink.c:1321 net/netlink/af_netlink.c:1346) 
[ 824.637564][ T7696] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1331) 
[ 824.637874][ T7696] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 824.638205][ T7696] netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 824.638519][ T7696] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1815) 
[ 824.638833][ T7696] ? __import_iovec (lib/iov_iter.c:1441 lib/iov_iter.c:1456) 
[ 824.639158][ T7696] ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 824.639475][ T7696] ? __pfx_____sys_sendmsg (net/socket.c:2560) 
[ 824.639784][ T7696] ? __pfx_copy_msghdr_from_user (net/socket.c:2540) 
[ 824.640190][ T7696] ___sys_sendmsg (net/socket.c:2670) 
[ 824.640504][ T7696] ? __pfx____sys_sendmsg (net/socket.c:2657) 
[ 824.640822][ T7696] ? __pfx_handle_pte_fault (mm/memory.c:6026) 
[ 824.641151][ T7696] ? reacquire_held_locks (kernel/locking/lockdep.c:5388) 
[ 824.641463][ T7696] ? do_user_addr_fault (arch/x86/mm/fault.c:1327) 
[ 824.641778][ T7696] ? __handle_mm_fault (mm/memory.c:6212) 
[ 824.642113][ T7696] ? __pfx___handle_mm_fault (mm/memory.c:6121) 
[ 824.642422][ T7696] ? lock_vma_under_rcu (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 mm/mmap_lock.c:171) 
[ 824.642760][ T7696] __sys_sendmsg (net/socket.c:2700) 
[ 824.643080][ T7696] ? __pfx___sys_sendmsg (net/socket.c:2685) 
[ 824.643395][ T7696] ? exc_page_fault (./arch/x86/include/asm/irqflags.h:26 ./arch/x86/include/asm/irqflags.h:109 ./arch/x86/include/asm/irqflags.h:151 arch/x86/mm/fault.c:1484 arch/x86/mm/fault.c:1532) 
[ 824.643714][ T7696] ? do_user_addr_fault (./arch/x86/include/asm/atomic.h:93 ./include/linux/atomic/atomic-arch-fallback.h:949 ./include/linux/atomic/atomic-instrumented.h:401 ./include/linux/refcount.h:389 ./include/linux/refcount.h:432 ./include/linux/mmap_lock.h:142 ./include/linux/mmap_lock.h:237 arch/x86/mm/fault.c:1338) 
[ 824.644036][ T7696] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 824.644350][ T7696] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 824.644661][ T7696] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[  824.645065][ T7696] RIP: 0033:0x7f70339671e7
[ 824.645386][ T7696] Code: 0e 00 f7 d8 64 89 02 48 c7 c0 ff ff ff ff eb b9 0f 1f 00 f3 0f 1e fa 64 8b 04 25 18 00 00 00 85 c0 75 10 b8 2e 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 51 c3 48 83 ec 28 89 54 24 1c 48 89 74 24 10
All code
========
   0:	0e                   	(bad)
   1:	00 f7                	add    %dh,%bh
   3:	d8 64 89 02          	fsubs  0x2(%rcx,%rcx,4)
   7:	48 c7 c0 ff ff ff ff 	mov    $0xffffffffffffffff,%rax
   e:	eb b9                	jmp    0xffffffffffffffc9
  10:	0f 1f 00             	nopl   (%rax)
  13:	f3 0f 1e fa          	endbr64
  17:	64 8b 04 25 18 00 00 	mov    %fs:0x18,%eax
  1e:	00 
  1f:	85 c0                	test   %eax,%eax
  21:	75 10                	jne    0x33
  23:	b8 2e 00 00 00       	mov    $0x2e,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 00 f0 ff ff    	cmp    $0xfffffffffffff000,%rax		<-- trapping instruction
  30:	77 51                	ja     0x83
  32:	c3                   	ret
  33:	48 83 ec 28          	sub    $0x28,%rsp
  37:	89 54 24 1c          	mov    %edx,0x1c(%rsp)
  3b:	48 89 74 24 10       	mov    %rsi,0x10(%rsp)

Code starting with the faulting instruction
===========================================
   0:	48 3d 00 f0 ff ff    	cmp    $0xfffffffffffff000,%rax
   6:	77 51                	ja     0x59
   8:	c3                   	ret
   9:	48 83 ec 28          	sub    $0x28,%rsp
   d:	89 54 24 1c          	mov    %edx,0x1c(%rsp)
  11:	48 89 74 24 10       	mov    %rsi,0x10(%rsp)
[  824.646470][ T7696] RSP: 002b:00007ffeed9076c8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[  824.646934][ T7696] RAX: ffffffffffffffda RBX: 00007ffeed907e00 RCX: 00007f70339671e7
[  824.647408][ T7696] RDX: 0000000000000000 RSI: 00007ffeed907730 RDI: 0000000000000005
[  824.647867][ T7696] RBP: 0000000000000006 R08: 000000000000006c R09: 0000000000000000
[  824.648337][ T7696] R10: 00007f70339f5ac0 R11: 0000000000000246 R12: 00007ffeed907e38
[  824.648797][ T7696] R13: 00000000686e7b89 R14: 0000000000499600 R15: 00007ffeed907820
| [  831.219734][ T7762] ------------[ cut here ]------------
| [ 831.220075][ T7762] WARNING: CPU: 2 PID: 7762 at ./include/net/netdev_lock.h:17 netif_set_mtu_ext (./include/net/netdev_lock.h:17 ./include/net/netdev_lock.h:15 ./include/net/netdev_lock.h:25 net/core/dev.c:9610) 
| [  831.220683][ T7762] Modules linked in: sctp act_gact cls_flower sch_ingress vxlan ip6_gre gre [last unloaded: test_bpf]
| [  831.223357][ T7762] Tainted: [W]=WARN
[  831.223604][ T7762] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 831.224015][ T7762] RIP: 0010:netif_set_mtu_ext (./include/net/netdev_lock.h:17 ./include/net/netdev_lock.h:15 ./include/net/netdev_lock.h:25 net/core/dev.c:9610) 
[ 831.224344][ T7762] Code: 00 00 8b 05 77 04 bc 02 85 c0 0f 84 52 fe ff ff 48 8d bb c0 0c 00 00 be ff ff ff ff e8 da fc 9b 00 85 c0 0f 85 39 fe ff ff 90 <0f> 0b 90 e9 30 fe ff ff 48 b8 00 00 00 00 00 fc ff df 4c 89 fa 48
All code
========
   0:	00 00                	add    %al,(%rax)
   2:	8b 05 77 04 bc 02    	mov    0x2bc0477(%rip),%eax        # 0x2bc047f
   8:	85 c0                	test   %eax,%eax
   a:	0f 84 52 fe ff ff    	je     0xfffffffffffffe62
  10:	48 8d bb c0 0c 00 00 	lea    0xcc0(%rbx),%rdi
  17:	be ff ff ff ff       	mov    $0xffffffff,%esi
  1c:	e8 da fc 9b 00       	call   0x9bfcfb
  21:	85 c0                	test   %eax,%eax
  23:	0f 85 39 fe ff ff    	jne    0xfffffffffffffe62
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	e9 30 fe ff ff       	jmp    0xfffffffffffffe62
  32:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
  39:	fc ff df 
  3c:	4c 89 fa             	mov    %r15,%rdx
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	e9 30 fe ff ff       	jmp    0xfffffffffffffe38
   8:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
   f:	fc ff df 
  12:	4c 89 fa             	mov    %r15,%rdx
  15:	48                   	rex.W
[  831.225477][ T7762] RSP: 0018:ffffc9000c4c7080 EFLAGS: 00010246
[  831.225878][ T7762] RAX: 0000000000000000 RBX: ffff8880026d2000 RCX: 0000000000000001
[  831.226350][ T7762] RDX: 0000000000000000 RSI: ffffffff93510751 RDI: ffffffff92c58280
[  831.226809][ T7762] RBP: ffffc9000c4c7168 R08: 0000000000000000 R09: 0000000000000000
[  831.227285][ T7762] R10: ffffc9000c4c7198 R11: ffffffff93f8d1e0 R12: 1ffff92001898e14
[  831.227757][ T7762] R13: 00000000000005dc R14: ffffc9000c4c7198 R15: ffff8880026d2f48
[  831.228236][ T7762] FS:  00007f94436e7800(0000) GS:ffff8880d7499000(0000) knlGS:0000000000000000
[  831.228784][ T7762] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  831.229186][ T7762] CR2: 00007f94438d2ba0 CR3: 00000000051d2006 CR4: 0000000000772ef0
[  831.229656][ T7762] PKRU: 55555554
[  831.229904][ T7762] Call Trace:
[  831.230150][ T7762]  <TASK>
[ 831.230321][ T7762] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 831.230635][ T7762] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 831.230974][ T7762] netif_set_mtu (net/core/dev.c:9652) 
[ 831.231288][ T7762] ? __pfx_netif_set_mtu (net/core/dev.c:9647) 
[ 831.231617][ T7762] dev_set_mtu (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:47 net/core/dev_api.c:249) 
[ 831.231858][ T7762] br_mtu_auto_adjust (net/bridge/br_if.c:525) 
[ 831.232212][ T7762] br_add_if (net/bridge/br_if.c:697) 
[ 831.232467][ T7762] do_set_master (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:41 net/core/rtnetlink.c:2949) 
[ 831.232778][ T7762] ? rtnl_configure_link (net/core/rtnetlink.c:3592) 
[ 831.233104][ T7762] rtnl_newlink_create (net/core/rtnetlink.c:3840) 
[ 831.233423][ T7762] ? __pfx_rtnl_newlink_create (net/core/rtnetlink.c:3791) 
[ 831.233735][ T7762] ? __dev_get_by_name (net/core/dev.c:865) 
[ 831.234057][ T7762] ? rtnl_dev_get (net/core/rtnetlink.c:3404) 
[ 831.234377][ T7762] ? __pfx_rtnl_dev_get (net/core/rtnetlink.c:3404) 
[ 831.234693][ T7762] ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4056) 
[ 831.235015][ T7762] ? reacquire_held_locks (kernel/locking/lockdep.c:5388) 
[ 831.235333][ T7762] __rtnl_newlink (net/core/rtnetlink.c:3942) 
[ 831.235658][ T7762] rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4058) 
[ 831.235994][ T7762] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 831.236330][ T7762] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/rtnetlink.c:6944) 
[ 831.236640][ T7762] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 831.236971][ T7762] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 831.237284][ T7762] rtnetlink_rcv_msg (net/core/rtnetlink.c:6946) 
[ 831.237601][ T7762] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 831.237919][ T7762] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 831.238249][ T7762] netlink_rcv_skb (net/netlink/af_netlink.c:2551) 
[ 831.238562][ T7762] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 831.238877][ T7762] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2528) 
[ 831.239266][ T7762] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/netlink/af_netlink.c:340) 
[ 831.239636][ T7762] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 ./include/net/netns/generic.h:48 net/netlink/af_netlink.c:333) 
[ 831.240018][ T7762] netlink_unicast (net/netlink/af_netlink.c:1321 net/netlink/af_netlink.c:1346) 
[ 831.240395][ T7762] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1331) 
[ 831.240751][ T7762] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 831.241128][ T7762] netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 831.241491][ T7762] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1815) 
[ 831.241857][ T7762] ? __import_iovec (lib/iov_iter.c:1441 lib/iov_iter.c:1456) 
[ 831.242249][ T7762] ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 831.242619][ T7762] ? __pfx_____sys_sendmsg (net/socket.c:2560) 
[ 831.242990][ T7762] ? __pfx_copy_msghdr_from_user (net/socket.c:2540) 
[ 831.243449][ T7762] ___sys_sendmsg (net/socket.c:2670) 
[ 831.243809][ T7762] ? __pfx____sys_sendmsg (net/socket.c:2657) 
[ 831.244196][ T7762] ? rcu_read_lock_any_held (kernel/rcu/update.c:386 kernel/rcu/update.c:380) 
[ 831.244568][ T7762] ? rcu_read_lock_any_held (kernel/rcu/update.c:386 kernel/rcu/update.c:380) 
[ 831.244924][ T7762] ? validate_chain (kernel/locking/lockdep.c:3804 kernel/locking/lockdep.c:3824 kernel/locking/lockdep.c:3879) 
[ 831.245300][ T7762] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 831.245675][ T7762] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 831.246048][ T7762] __sys_sendmsg (net/socket.c:2700) 
[ 831.246411][ T7762] ? __pfx___sys_sendmsg (net/socket.c:2685) 
[ 831.246781][ T7762] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 831.247152][ T7762] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 831.247519][ T7762] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[  831.247980][ T7762] RIP: 0033:0x7f94438b41e7
[ 831.248348][ T7762] Code: 0e 00 f7 d8 64 89 02 48 c7 c0 ff ff ff ff eb b9 0f 1f 00 f3 0f 1e fa 64 8b 04 25 18 00 00 00 85 c0 75 10 b8 2e 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 51 c3 48 83 ec 28 89 54 24 1c 48 89 74 24 10
All code
========
   0:	0e                   	(bad)
   1:	00 f7                	add    %dh,%bh
   3:	d8 64 89 02          	fsubs  0x2(%rcx,%rcx,4)
   7:	48 c7 c0 ff ff ff ff 	mov    $0xffffffffffffffff,%rax
   e:	eb b9                	jmp    0xffffffffffffffc9
  10:	0f 1f 00             	nopl   (%rax)
  13:	f3 0f 1e fa          	endbr64
  17:	64 8b 04 25 18 00 00 	mov    %fs:0x18,%eax
  1e:	00 
  1f:	85 c0                	test   %eax,%eax
  21:	75 10                	jne    0x33
  23:	b8 2e 00 00 00       	mov    $0x2e,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 00 f0 ff ff    	cmp    $0xfffffffffffff000,%rax		<-- trapping instruction
  30:	77 51                	ja     0x83
  32:	c3                   	ret
  33:	48 83 ec 28          	sub    $0x28,%rsp
  37:	89 54 24 1c          	mov    %edx,0x1c(%rsp)
  3b:	48 89 74 24 10       	mov    %rsi,0x10(%rsp)

Code starting with the faulting instruction
===========================================
   0:	48 3d 00 f0 ff ff    	cmp    $0xfffffffffffff000,%rax
   6:	77 51                	ja     0x59
   8:	c3                   	ret
   9:	48 83 ec 28          	sub    $0x28,%rsp
   d:	89 54 24 1c          	mov    %edx,0x1c(%rsp)
  11:	48 89 74 24 10       	mov    %rsi,0x10(%rsp)
[  831.249581][ T7762] RSP: 002b:00007ffe590d0008 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[  831.250130][ T7762] RAX: ffffffffffffffda RBX: 00007ffe590d0740 RCX: 00007f94438b41e7
[  831.250655][ T7762] RDX: 0000000000000000 RSI: 00007ffe590d0070 RDI: 0000000000000005
[  831.251191][ T7762] RBP: 0000000000000006 R08: 0000000000000078 R09: 0000000000000000
[  831.251716][ T7762] R10: 00007f9443942ac0 R11: 0000000000000246 R12: 00007ffe590d0778
[  831.252307][ T7762] R13: 00000000686e7b8f R14: 0000000000499600 R15: 00007ffe590d0160
| [  835.216614][ T7792] ------------[ cut here ]------------
| [ 835.216925][ T7792] WARNING: CPU: 3 PID: 7792 at ./include/net/netdev_lock.h:17 netif_set_mtu_ext (./include/net/netdev_lock.h:17 ./include/net/netdev_lock.h:15 ./include/net/netdev_lock.h:25 net/core/dev.c:9610) 
| [  835.217580][ T7792] Modules linked in: sctp act_gact cls_flower sch_ingress vxlan ip6_gre gre [last unloaded: test_bpf]
| [  835.218924][ T7792] Tainted: [W]=WARN
[  835.219229][ T7792] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 835.219663][ T7792] RIP: 0010:netif_set_mtu_ext (./include/net/netdev_lock.h:17 ./include/net/netdev_lock.h:15 ./include/net/netdev_lock.h:25 net/core/dev.c:9610) 
[ 835.220001][ T7792] Code: 00 00 8b 05 77 04 bc 02 85 c0 0f 84 52 fe ff ff 48 8d bb c0 0c 00 00 be ff ff ff ff e8 da fc 9b 00 85 c0 0f 85 39 fe ff ff 90 <0f> 0b 90 e9 30 fe ff ff 48 b8 00 00 00 00 00 fc ff df 4c 89 fa 48
All code
========
   0:	00 00                	add    %al,(%rax)
   2:	8b 05 77 04 bc 02    	mov    0x2bc0477(%rip),%eax        # 0x2bc047f
   8:	85 c0                	test   %eax,%eax
   a:	0f 84 52 fe ff ff    	je     0xfffffffffffffe62
  10:	48 8d bb c0 0c 00 00 	lea    0xcc0(%rbx),%rdi
  17:	be ff ff ff ff       	mov    $0xffffffff,%esi
  1c:	e8 da fc 9b 00       	call   0x9bfcfb
  21:	85 c0                	test   %eax,%eax
  23:	0f 85 39 fe ff ff    	jne    0xfffffffffffffe62
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	e9 30 fe ff ff       	jmp    0xfffffffffffffe62
  32:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
  39:	fc ff df 
  3c:	4c 89 fa             	mov    %r15,%rdx
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	e9 30 fe ff ff       	jmp    0xfffffffffffffe38
   8:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
   f:	fc ff df 
  12:	4c 89 fa             	mov    %r15,%rdx
  15:	48                   	rex.W
[  835.221163][ T7792] RSP: 0018:ffffc9000c187080 EFLAGS: 00010246
[  835.221581][ T7792] RAX: 0000000000000000 RBX: ffff88800cdf2000 RCX: 0000000000000001
[  835.222076][ T7792] RDX: 0000000000000000 RSI: ffffffff93510751 RDI: ffffffff92c58280
[  835.222567][ T7792] RBP: ffffc9000c187168 R08: 0000000000000000 R09: 0000000000000000
[  835.223053][ T7792] R10: ffffc9000c187198 R11: ffffffff93f8d1e0 R12: 1ffff92001830e14
[  835.223545][ T7792] R13: 00000000000005dc R14: ffffc9000c187198 R15: ffff88800cdf2f48
[  835.224037][ T7792] FS:  00007fe37abcf800(0000) GS:ffff8880d7519000(0000) knlGS:0000000000000000
[  835.224603][ T7792] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  835.225015][ T7792] CR2: 00007f811485f000 CR3: 0000000017ef0002 CR4: 0000000000772ef0
[  835.225492][ T7792] PKRU: 55555554
[  835.225761][ T7792] Call Trace:
[  835.226010][ T7792]  <TASK>
[ 835.226181][ T7792] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 835.226498][ T7792] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 835.226840][ T7792] netif_set_mtu (net/core/dev.c:9652) 
[ 835.227169][ T7792] ? __pfx_netif_set_mtu (net/core/dev.c:9647) 
[ 835.227501][ T7792] dev_set_mtu (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:47 net/core/dev_api.c:249) 
[ 835.227757][ T7792] br_mtu_auto_adjust (net/bridge/br_if.c:525) 
[ 835.228090][ T7792] br_add_if (net/bridge/br_if.c:697) 
[ 835.228341][ T7792] do_set_master (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:41 net/core/rtnetlink.c:2949) 
[ 835.228674][ T7792] ? rtnl_configure_link (net/core/rtnetlink.c:3592) 
[ 835.229005][ T7792] rtnl_newlink_create (net/core/rtnetlink.c:3840) 
[ 835.229326][ T7792] ? __pfx_rtnl_newlink_create (net/core/rtnetlink.c:3791) 
[ 835.229651][ T7792] ? __dev_get_by_name (net/core/dev.c:865) 
[ 835.229976][ T7792] ? rtnl_dev_get (net/core/rtnetlink.c:3404) 
[ 835.230294][ T7792] ? __pfx_rtnl_dev_get (net/core/rtnetlink.c:3404) 
[ 835.230615][ T7792] ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4056) 
[ 835.230955][ T7792] ? reacquire_held_locks (kernel/locking/lockdep.c:5388) 
[ 835.231287][ T7792] __rtnl_newlink (net/core/rtnetlink.c:3942) 
[ 835.231616][ T7792] rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4058) 
[ 835.231975][ T7792] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 835.232320][ T7792] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/rtnetlink.c:6944) 
[ 835.232634][ T7792] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 835.232974][ T7792] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 835.233292][ T7792] rtnetlink_rcv_msg (net/core/rtnetlink.c:6946) 
[ 835.233619][ T7792] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 835.233963][ T7792] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 835.234285][ T7792] netlink_rcv_skb (net/netlink/af_netlink.c:2551) 
[ 835.234607][ T7792] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 835.234948][ T7792] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2528) 
[ 835.235278][ T7792] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/netlink/af_netlink.c:340) 
[ 835.235592][ T7792] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 ./include/net/netns/generic.h:48 net/netlink/af_netlink.c:333) 
[ 835.235930][ T7792] netlink_unicast (net/netlink/af_netlink.c:1321 net/netlink/af_netlink.c:1346) 
[ 835.236261][ T7792] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1331) 
[ 835.236577][ T7792] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 835.236913][ T7792] netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 835.237241][ T7792] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1815) 
[ 835.237558][ T7792] ? __import_iovec (lib/iov_iter.c:1441 lib/iov_iter.c:1456) 
[ 835.238004][ T7792] ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 835.238324][ T7792] ? __pfx_____sys_sendmsg (net/socket.c:2560) 
[ 835.238624][ T7792] ? __pfx_copy_msghdr_from_user (net/socket.c:2540) 
[ 835.239032][ T7792] ___sys_sendmsg (net/socket.c:2670) 
[ 835.239335][ T7792] ? __pfx____sys_sendmsg (net/socket.c:2657) 
[ 835.239639][ T7792] ? rcu_read_lock_any_held (kernel/rcu/update.c:386 kernel/rcu/update.c:380) 
[ 835.239962][ T7792] ? rcu_read_lock_any_held (kernel/rcu/update.c:386 kernel/rcu/update.c:380) 
[ 835.240276][ T7792] ? validate_chain (kernel/locking/lockdep.c:3804 kernel/locking/lockdep.c:3824 kernel/locking/lockdep.c:3879) 
[ 835.240587][ T7792] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 835.240903][ T7792] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 835.241218][ T7792] __sys_sendmsg (net/socket.c:2700) 
[ 835.241523][ T7792] ? __pfx___sys_sendmsg (net/socket.c:2685) 
[ 835.241836][ T7792] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 835.242169][ T7792] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 835.242472][ T7792] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[  835.242843][ T7792] RIP: 0033:0x7fe37ad9c1e7
[ 835.243173][ T7792] Code: 0e 00 f7 d8 64 89 02 48 c7 c0 ff ff ff ff eb b9 0f 1f 00 f3 0f 1e fa 64 8b 04 25 18 00 00 00 85 c0 75 10 b8 2e 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 51 c3 48 83 ec 28 89 54 24 1c 48 89 74 24 10
All code
========
   0:	0e                   	(bad)
   1:	00 f7                	add    %dh,%bh
   3:	d8 64 89 02          	fsubs  0x2(%rcx,%rcx,4)
   7:	48 c7 c0 ff ff ff ff 	mov    $0xffffffffffffffff,%rax
   e:	eb b9                	jmp    0xffffffffffffffc9
  10:	0f 1f 00             	nopl   (%rax)
  13:	f3 0f 1e fa          	endbr64
  17:	64 8b 04 25 18 00 00 	mov    %fs:0x18,%eax
  1e:	00 
  1f:	85 c0                	test   %eax,%eax
  21:	75 10                	jne    0x33
  23:	b8 2e 00 00 00       	mov    $0x2e,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 00 f0 ff ff    	cmp    $0xfffffffffffff000,%rax		<-- trapping instruction
  30:	77 51                	ja     0x83
  32:	c3                   	ret
  33:	48 83 ec 28          	sub    $0x28,%rsp
  37:	89 54 24 1c          	mov    %edx,0x1c(%rsp)
  3b:	48 89 74 24 10       	mov    %rsi,0x10(%rsp)

Code starting with the faulting instruction
===========================================
   0:	48 3d 00 f0 ff ff    	cmp    $0xfffffffffffff000,%rax
   6:	77 51                	ja     0x59
   8:	c3                   	ret
   9:	48 83 ec 28          	sub    $0x28,%rsp
   d:	89 54 24 1c          	mov    %edx,0x1c(%rsp)
  11:	48 89 74 24 10       	mov    %rsi,0x10(%rsp)
[  835.244284][ T7792] RSP: 002b:00007ffd06ed2b58 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[  835.244737][ T7792] RAX: ffffffffffffffda RBX: 00007ffd06ed3290 RCX: 00007fe37ad9c1e7
[  835.245211][ T7792] RDX: 0000000000000000 RSI: 00007ffd06ed2bc0 RDI: 0000000000000005
[  835.245659][ T7792] RBP: 0000000000000006 R08: 0000000000000078 R09: 0000000000000000
[  835.246129][ T7792] R10: 00007fe37ae2aac0 R11: 0000000000000246 R12: 00007ffd06ed32c8


Finger prints:
netif_set_mtu_ext:netif_set_mtu:dev_set_mtu:br_mtu_auto_adjust:br_add_if