======================================
| [   19.300304][  T316] ip_gre: GRE over IPv4 tunneling driver
| [   19.359219][  T315] ------------[ cut here ]------------
| [ 19.359655][ T315] WARNING: CPU: 0 PID: 315 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) 
| [   19.360265][  T315] Modules linked in: ip_gre gre sch_ingress vrf veth
[   19.361270][  T315] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 19.361709][ T315] 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) 
[ 19.362033][ T315] Code: 00 00 8b 05 d7 bc 3a 02 85 c0 0f 84 52 fe ff ff 48 8d bb a0 0c 00 00 be ff ff ff ff e8 1a 63 7b 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 d7 bc 3a 02    	mov    0x23abcd7(%rip),%eax        # 0x23abcdf
   8:	85 c0                	test   %eax,%eax
   a:	0f 84 52 fe ff ff    	je     0xfffffffffffffe62
  10:	48 8d bb a0 0c 00 00 	lea    0xca0(%rbx),%rdi
  17:	be ff ff ff ff       	mov    $0xffffffff,%esi
  1c:	e8 1a 63 7b 00       	call   0x7b633b
  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
[   19.363134][  T315] RSP: 0018:ffffc900005e7000 EFLAGS: 00010246
[   19.364076][  T315] RAX: 0000000000000000 RBX: ffff88800bd4c000 RCX: 0000000000000001
[   19.364549][  T315] RDX: 0000000000000000 RSI: ffffffffb0a9b941 RDI: ffffffffb02555e0
[   19.365011][  T315] RBP: ffffc900005e70e8 R08: ffff88800bd4c218 R09: 0000000000000000
[   19.365475][  T315] R10: ffffc900005e7118 R11: ffffffffb0f79160 R12: 1ffff920000bce04
[   19.365946][  T315] R13: 00000000000005b6 R14: ffffc900005e7118 R15: ffff88800bd4c218
[   19.366414][  T315] FS:  00007fd43d8aa800(0000) GS:ffff8880836b7000(0000) knlGS:0000000000000000
[   19.366952][  T315] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   19.367342][  T315] CR2: 0000000000436890 CR3: 0000000005918002 CR4: 0000000000772ef0
[   19.367819][  T315] PKRU: 55555554
[   19.368051][  T315] Call Trace:
[   19.368283][  T315]  <TASK>
[ 19.368625][ T315] ? __pfx_ip_route_output_key_hash (net/ipv4/route.c:2684) 
[ 19.369025][ T315] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 19.369334][ T315] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 19.369654][ T315] ? crng_make_state (drivers/char/random.c:393 (discriminator 1)) 
[ 19.369962][ T315] ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4475) 
[ 19.370274][ T315] netif_set_mtu (net/core/dev.c:9652) 
[ 19.370591][ T315] ? __pfx_netif_set_mtu (net/core/dev.c:9647) 
[ 19.374644][ T315] ? dev_addr_mod (net/core/dev_addr_lists.c:584) 
[ 19.374956][ T315] dev_set_mtu (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:47 net/core/dev_api.c:249) 
[ 19.375185][ T315] ip_tunnel_newlink (net/ipv4/ip_tunnel.c:1246) 
[ 19.375498][ T315] ? __pfx_ip_tunnel_newlink (net/ipv4/ip_tunnel.c:1209) 
[ 19.375817][ T315] ipgre_newlink (net/ipv4/ip_gre.c:1415 (discriminator 4)) ip_gre 
[ 19.376126][ T315] ? __pfx_ipgre_newlink (net/ipv4/ip_gre.c:1401) ip_gre 
[ 19.376535][ T315] ? __pfx_validate_linkmsg (net/core/rtnetlink.c:2660) 
[ 19.376849][ T315] ? rtnl_create_link (net/core/rtnetlink.c:3642) 
[ 19.380724][ T315] rtnl_newlink_create (net/core/rtnetlink.c:3825) 
[ 19.381037][ T315] ? __pfx_rtnl_newlink_create (net/core/rtnetlink.c:3791) 
[ 19.381345][ T315] ? __dev_get_by_name (net/core/dev.c:865) 
[ 19.381659][ T315] ? rtnl_dev_get (net/core/rtnetlink.c:3404) 
[ 19.382190][ T315] ? __pfx_rtnl_dev_get (net/core/rtnetlink.c:3404) 
[ 19.382508][ T315] ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4056) 
[ 19.382810][ T315] ? reacquire_held_locks (kernel/locking/lockdep.c:5388) 
[ 19.383122][ T315] __rtnl_newlink (net/core/rtnetlink.c:3942) 
[ 19.383442][ T315] rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4058) 
[ 19.383754][ T315] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 19.384076][ T315] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/rtnetlink.c:6944) 
[ 19.384377][ T315] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 19.384938][ T315] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 19.385240][ T315] rtnetlink_rcv_msg (net/core/rtnetlink.c:6946) 
[ 19.385566][ T315] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 19.385875][ T315] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 19.386410][ T315] netlink_rcv_skb (net/netlink/af_netlink.c:2551) 
[ 19.386716][ T315] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 19.387028][ T315] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2528) 
[ 19.387344][ T315] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/netlink/af_netlink.c:340) 
[ 19.387656][ T315] ? 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) 
[ 19.387965][ T315] netlink_unicast (net/netlink/af_netlink.c:1320 net/netlink/af_netlink.c:1346) 
[ 19.388284][ T315] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1331) 
[ 19.388606][ T315] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 19.388945][ T315] netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 19.389260][ T315] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1815) 
[ 19.389587][ T315] ? __import_iovec (lib/iov_iter.c:1441 lib/iov_iter.c:1456) 
[ 19.389901][ T315] ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 19.390210][ T315] ? __pfx_____sys_sendmsg (net/socket.c:2560) 
[ 19.390532][ T315] ? __pfx_copy_msghdr_from_user (net/socket.c:2540) 
[ 19.390922][ T315] ___sys_sendmsg (net/socket.c:2670) 
[ 19.391225][ T315] ? __pfx____sys_sendmsg (net/socket.c:2657) 
[ 19.391541][ T315] ? __pfx_handle_pte_fault (mm/memory.c:6026) 
[ 19.391847][ T315] ? reacquire_held_locks (kernel/locking/lockdep.c:5388) 
[ 19.392147][ T315] ? do_user_addr_fault (arch/x86/mm/fault.c:1327) 
[ 19.392465][ T315] ? __handle_mm_fault (mm/memory.c:6212) 
[ 19.392812][ T315] ? __pfx___handle_mm_fault (mm/memory.c:6121) 
[ 19.393111][ T315] ? lock_vma_under_rcu (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 mm/mmap_lock.c:171) 
[ 19.393440][ T315] __sys_sendmsg (net/socket.c:2700) 
[ 19.393742][ T315] ? __pfx___sys_sendmsg (net/socket.c:2685) 
[ 19.394040][ T315] ? 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) 
[ 19.394350][ T315] ? 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) 
[ 19.394666][ T315] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 19.394973][ T315] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 19.395278][ T315] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[   19.396108][  T315] RIP: 0033:0x7fd43da771e7
[ 19.396443][ T315] Code: Unable to access opcode bytes at 0x7fd43da771bd.

Code starting with the faulting instruction
===========================================
[   19.396836][  T315] RSP: 002b:00007ffe96e7c8b8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[   19.397297][  T315] RAX: ffffffffffffffda RBX: 00007ffe96e7cfe0 RCX: 00007fd43da771e7
[   19.397770][  T315] RDX: 0000000000000000 RSI: 00007ffe96e7c920 RDI: 0000000000000005
[   19.398229][  T315] RBP: 0000000000000004 R08: 00000000000000b0 R09: 0000000000000000
[   19.399161][  T315] R10: 00007fd43d96f6f8 R11: 0000000000000246 R12: 00007ffe96e7d000
[   19.399645][  T315] R13: 00000000686e12f4 R14: 0000000000499600 R15: 00007ffe96e7ca0c
| [   22.329319][  T343] ------------[ cut here ]------------
| [ 22.329887][ T343] WARNING: CPU: 0 PID: 343 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) 
| [   22.331166][  T343] Modules linked in: bridge stp llc ip6_gre ip6_tunnel tunnel6 act_gact cls_matchall ip_gre gre sch_ingress vrf veth
| [   22.333853][  T343] Tainted: [W]=WARN
[   22.334275][  T343] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 22.335281][ T343] 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) 
[ 22.336145][ T343] Code: 00 00 8b 05 d7 bc 3a 02 85 c0 0f 84 52 fe ff ff 48 8d bb a0 0c 00 00 be ff ff ff ff e8 1a 63 7b 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 d7 bc 3a 02    	mov    0x23abcd7(%rip),%eax        # 0x23abcdf
   8:	85 c0                	test   %eax,%eax
   a:	0f 84 52 fe ff ff    	je     0xfffffffffffffe62
  10:	48 8d bb a0 0c 00 00 	lea    0xca0(%rbx),%rdi
  17:	be ff ff ff ff       	mov    $0xffffffff,%esi
  1c:	e8 1a 63 7b 00       	call   0x7b633b
  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
[   22.338622][  T343] RSP: 0018:ffffc90000636ef0 EFLAGS: 00010246
[   22.339329][  T343] RAX: 0000000000000000 RBX: ffff88800ebb2000 RCX: 0000000000000001
[   22.340660][  T343] RDX: 0000000000000000 RSI: ffffffffb0a9b941 RDI: ffffffffb02555e0
[   22.341716][  T343] RBP: ffffc90000636fe0 R08: 0000000000000000 R09: 0000000000000000
[   22.342778][  T343] R10: ffffc90000637010 R11: ffffffffb18a8918 R12: 1ffff920000c6de2
[   22.343740][  T343] R13: 00000000000005dc R14: ffffc90000637010 R15: ffff88800ebb2f08
[   22.344585][  T343] FS:  00007f24b12b1800(0000) GS:ffff8880836b7000(0000) knlGS:0000000000000000
[   22.345563][  T343] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   22.346024][  T343] CR2: 00000000004e5aa8 CR3: 000000000c03f006 CR4: 0000000000772ef0
[   22.346499][  T343] PKRU: 55555554
[   22.346740][  T343] Call Trace:
[   22.346983][  T343]  <TASK>
[ 22.347274][ T343] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 22.347887][ T343] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 22.348499][ T343] ? mark_held_locks (kernel/locking/lockdep.c:4328) 
[ 22.349076][ T343] ? _raw_spin_unlock_irqrestore (./include/linux/spinlock_api_smp.h:151 kernel/locking/spinlock.c:194) 
[ 22.349528][ T343] ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4475) 
[ 22.349857][ T343] netif_set_mtu (net/core/dev.c:9652) 
[ 22.350193][ T343] ? __pfx_netif_set_mtu (net/core/dev.c:9647) 
[ 22.350537][ T343] ? br_get_link_af_size_filtered (net/bridge/br_netlink.c:116) bridge 
[ 22.351000][ T343] dev_set_mtu (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:47 net/core/dev_api.c:249) 
[ 22.351248][ T343] br_mtu_auto_adjust (net/bridge/br_if.c:525) bridge 
[ 22.351725][ T343] br_add_if (net/bridge/br_if.c:697) bridge 
[ 22.352109][ T343] do_set_master (net/core/rtnetlink.c:2948) 
[ 22.352457][ T343] do_setlink.constprop.0 (net/core/rtnetlink.c:3150) 
[ 22.352786][ T343] ? __pfx_do_setlink.constprop.0 (net/core/rtnetlink.c:3021) 
[ 22.353359][ T343] ? rcu_read_lock_any_held (kernel/rcu/update.c:386 kernel/rcu/update.c:380) 
[ 22.353831][ T343] ? validate_chain (kernel/locking/lockdep.c:3804 kernel/locking/lockdep.c:3824 kernel/locking/lockdep.c:3879) 
[ 22.354174][ T343] ? __kernel_text_address (kernel/extable.c:79) 
[ 22.354511][ T343] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 22.354835][ T343] ? __mutex_trylock_common (./arch/x86/include/asm/atomic64_64.h:101 ./include/linux/atomic/atomic-arch-fallback.h:4296 ./include/linux/atomic/atomic-long.h:1482 ./include/linux/atomic/atomic-instrumented.h:4458 kernel/locking/mutex.c:113) 
[ 22.355174][ T343] ? __pfx___mutex_trylock_common (kernel/locking/mutex.c:88) 
[ 22.355586][ T343] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 22.355897][ T343] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 22.356225][ T343] ? trace_contention_end (./include/trace/events/lock.h:122 (discriminator 21)) 
[ 22.356547][ T343] ? __mutex_lock (./arch/x86/include/asm/preempt.h:104 kernel/locking/mutex.c:728 kernel/locking/mutex.c:747) 
[ 22.356870][ T343] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 22.357193][ T343] ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4056) 
[ 22.357507][ T343] ? __create_object (mm/kmemleak.c:771) 
[ 22.357814][ T343] ? __pfx___mutex_lock (kernel/locking/mutex.c:746) 
[ 22.358260][ T343] ? trace_cap_capable (./include/trace/events/capability.h:26 (discriminator 21)) 
[ 22.358596][ T343] ? _raw_spin_unlock_irqrestore (./arch/x86/include/asm/preempt.h:104 ./include/linux/spinlock_api_smp.h:152 kernel/locking/spinlock.c:194) 
[ 22.358993][ T343] ? __rtnl_newlink (net/core/rtnetlink.c:3907) 
[ 22.359317][ T343] rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4058) 
[ 22.359663][ T343] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 22.359981][ T343] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 22.360312][ T343] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 22.360631][ T343] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/rtnetlink.c:6944) 
[ 22.360933][ T343] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 22.361249][ T343] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 22.361564][ T343] rtnetlink_rcv_msg (net/core/rtnetlink.c:6946) 
[ 22.361879][ T343] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 22.362206][ T343] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 22.362528][ T343] netlink_rcv_skb (net/netlink/af_netlink.c:2551) 
[ 22.362837][ T343] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 22.363158][ T343] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2528) 
[ 22.363496][ T343] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/netlink/af_netlink.c:340) 
[ 22.363801][ T343] ? 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) 
[ 22.364130][ T343] netlink_unicast (net/netlink/af_netlink.c:1320 net/netlink/af_netlink.c:1346) 
[ 22.364459][ T343] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1331) 
[ 22.364772][ T343] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 22.365097][ T343] netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 22.365425][ T343] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1815) 
[ 22.365733][ T343] ? __import_iovec (lib/iov_iter.c:1441 lib/iov_iter.c:1456) 
[ 22.366068][ T343] ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 22.366380][ T343] ? __pfx_____sys_sendmsg (net/socket.c:2560) 
[ 22.366702][ T343] ? __pfx_copy_msghdr_from_user (net/socket.c:2540) 
[ 22.367104][ T343] ___sys_sendmsg (net/socket.c:2670) 
[ 22.367428][ T343] ? kasan_record_aux_stack (mm/kasan/generic.c:548) 
[ 22.367753][ T343] ? __call_rcu_common.constprop.0 (./arch/x86/include/asm/irqflags.h:26 ./arch/x86/include/asm/irqflags.h:109 ./arch/x86/include/asm/irqflags.h:127 kernel/rcu/tree.c:3096) 
[ 22.368264][ T343] ? __pfx____sys_sendmsg (net/socket.c:2657) 
[ 22.368698][ T343] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 22.369024][ T343] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 22.369337][ T343] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 22.369653][ T343] ? __virt_addr_valid (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:953 ./include/linux/mmzone.h:2168 arch/x86/mm/physaddr.c:65) 
[ 22.369957][ T343] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 22.370286][ T343] __sys_sendmsg (net/socket.c:2700) 
[ 22.370600][ T343] ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3119) 
[ 22.370990][ T343] ? __pfx___sys_sendmsg (net/socket.c:2685) 
[ 22.371313][ T343] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 22.371647][ T343] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 22.371955][ T343] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[   22.372346][  T343] RIP: 0033:0x7f24b147e1e7
[ 22.372672][ T343] 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)
[   22.373846][  T343] RSP: 002b:00007ffe53b21dc8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[   22.374319][  T343] RAX: ffffffffffffffda RBX: 00007ffe53b224f0 RCX: 00007f24b147e1e7
[   22.374789][  T343] RDX: 0000000000000000 RSI: 00007ffe53b21e30 RDI: 0000000000000005
[   22.375245][  T343] RBP: 0000000000000004 R08: 0000000000000003 R09: 0000000000000000
[   22.375723][  T343] R10: 0000000012688910 R11: 0000000000000246 R12: 0000000000000004
[   22.376195][  T343] R13: 00000000686e12f8 R14: 0000000000499600 R15: 0000000000000000
| [   22.656560][  T345] ------------[ cut here ]------------
| [ 22.656894][ T345] WARNING: CPU: 0 PID: 345 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) 
| [   22.658072][  T345] Modules linked in: bridge stp llc ip6_gre ip6_tunnel tunnel6 act_gact cls_matchall ip_gre gre sch_ingress vrf veth
| [   22.659464][  T345] Tainted: [W]=WARN
[   22.659696][  T345] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 22.660097][ T345] 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) 
[ 22.660427][ T345] Code: 00 00 8b 05 d7 bc 3a 02 85 c0 0f 84 52 fe ff ff 48 8d bb a0 0c 00 00 be ff ff ff ff e8 1a 63 7b 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 d7 bc 3a 02    	mov    0x23abcd7(%rip),%eax        # 0x23abcdf
   8:	85 c0                	test   %eax,%eax
   a:	0f 84 52 fe ff ff    	je     0xfffffffffffffe62
  10:	48 8d bb a0 0c 00 00 	lea    0xca0(%rbx),%rdi
  17:	be ff ff ff ff       	mov    $0xffffffff,%esi
  1c:	e8 1a 63 7b 00       	call   0x7b633b
  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
[   22.661528][  T345] RSP: 0018:ffffc90000666ef0 EFLAGS: 00010246
[   22.661929][  T345] RAX: 0000000000000000 RBX: ffff88800ebb2000 RCX: 0000000000000001
[   22.662412][  T345] RDX: 0000000000000000 RSI: ffffffffb0a9b941 RDI: ffffffffb02555e0
[   22.662883][  T345] RBP: ffffc90000666fe0 R08: 0000000000000000 R09: 0000000000000000
[   22.663363][  T345] R10: ffffc90000667010 R11: ffffffffb18a8918 R12: 1ffff920000ccde2
[   22.663842][  T345] R13: 00000000000005dc R14: ffffc90000667010 R15: ffff88800ebb2f08
[   22.664311][  T345] FS:  00007fd8bec70800(0000) GS:ffff8880836b7000(0000) knlGS:0000000000000000
[   22.664858][  T345] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   22.665277][  T345] CR2: 00000000004e5ab0 CR3: 000000000c03f003 CR4: 0000000000772ef0
[   22.665752][  T345] PKRU: 55555554
[   22.665996][  T345] Call Trace:
[   22.666264][  T345]  <TASK>
[ 22.666435][ T345] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 22.666770][ T345] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 22.667089][ T345] ? mark_held_locks (kernel/locking/lockdep.c:4328) 
[ 22.667418][ T345] ? _raw_spin_unlock_irqrestore (./include/linux/spinlock_api_smp.h:151 kernel/locking/spinlock.c:194) 
[ 22.667805][ T345] ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4475) 
[ 22.668118][ T345] netif_set_mtu (net/core/dev.c:9652) 
[ 22.668449][ T345] ? __pfx_netif_set_mtu (net/core/dev.c:9647) 
[ 22.668785][ T345] ? br_get_link_af_size_filtered (net/bridge/br_netlink.c:116) bridge 
[ 22.669226][ T345] dev_set_mtu (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:47 net/core/dev_api.c:249) 
[ 22.669483][ T345] br_mtu_auto_adjust (net/bridge/br_if.c:525) bridge 
[ 22.669923][ T345] br_add_if (net/bridge/br_if.c:697) bridge 
[ 22.670289][ T345] do_set_master (net/core/rtnetlink.c:2948) 
[ 22.670616][ T345] do_setlink.constprop.0 (net/core/rtnetlink.c:3150) 
[ 22.670949][ T345] ? __pfx_do_setlink.constprop.0 (net/core/rtnetlink.c:3021) 
[ 22.671361][ T345] ? rcu_read_lock_any_held (kernel/rcu/update.c:386 kernel/rcu/update.c:380) 
[ 22.671691][ T345] ? validate_chain (kernel/locking/lockdep.c:3804 kernel/locking/lockdep.c:3824 kernel/locking/lockdep.c:3879) 
[ 22.672003][ T345] ? __kernel_text_address (kernel/extable.c:79) 
[ 22.672327][ T345] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 22.672651][ T345] ? __mutex_trylock_common (./arch/x86/include/asm/atomic64_64.h:101 ./include/linux/atomic/atomic-arch-fallback.h:4296 ./include/linux/atomic/atomic-long.h:1482 ./include/linux/atomic/atomic-instrumented.h:4458 kernel/locking/mutex.c:113) 
[ 22.672965][ T345] ? __pfx___mutex_trylock_common (kernel/locking/mutex.c:88) 
[ 22.673368][ T345] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 22.673704][ T345] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 22.674025][ T345] ? trace_contention_end (./include/trace/events/lock.h:122 (discriminator 21)) 
[ 22.674343][ T345] ? __mutex_lock (./arch/x86/include/asm/preempt.h:104 kernel/locking/mutex.c:728 kernel/locking/mutex.c:747) 
[ 22.674670][ T345] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 22.674988][ T345] ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4056) 
[ 22.675300][ T345] ? __create_object (mm/kmemleak.c:771) 
[ 22.675614][ T345] ? __pfx___mutex_lock (kernel/locking/mutex.c:746) 
[ 22.675928][ T345] ? trace_cap_capable (./include/trace/events/capability.h:26 (discriminator 21)) 
[ 22.676237][ T345] ? _raw_spin_unlock_irqrestore (./arch/x86/include/asm/preempt.h:104 ./include/linux/spinlock_api_smp.h:152 kernel/locking/spinlock.c:194) 
[ 22.676635][ T345] ? __rtnl_newlink (net/core/rtnetlink.c:3907) 
[ 22.676953][ T345] rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4058) 
[ 22.677277][ T345] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 22.677610][ T345] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 22.677929][ T345] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 22.678253][ T345] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/rtnetlink.c:6944) 
[ 22.678596][ T345] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 22.678912][ T345] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 22.679237][ T345] rtnetlink_rcv_msg (net/core/rtnetlink.c:6946) 
[ 22.679567][ T345] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 22.679884][ T345] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 22.680202][ T345] netlink_rcv_skb (net/netlink/af_netlink.c:2551) 
[ 22.680536][ T345] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 22.680857][ T345] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2528) 
[ 22.681185][ T345] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/netlink/af_netlink.c:340) 
[ 22.681506][ T345] ? 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) 
[ 22.681846][ T345] netlink_unicast (net/netlink/af_netlink.c:1320 net/netlink/af_netlink.c:1346) 
[ 22.682206][ T345] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1331) 
[ 22.682539][ T345] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 22.682878][ T345] netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 22.683214][ T345] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1815) 
[ 22.683535][ T345] ? __import_iovec (lib/iov_iter.c:1441 lib/iov_iter.c:1456) 
[ 22.683851][ T345] ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 22.684173][ T345] ? __pfx_____sys_sendmsg (net/socket.c:2560) 
[ 22.684487][ T345] ? __pfx_copy_msghdr_from_user (net/socket.c:2540) 
[ 22.684879][ T345] ___sys_sendmsg (net/socket.c:2670) 
[ 22.685184][ T345] ? kasan_record_aux_stack (mm/kasan/generic.c:548) 
[ 22.685505][ T345] ? __call_rcu_common.constprop.0 (./arch/x86/include/asm/irqflags.h:26 ./arch/x86/include/asm/irqflags.h:109 ./arch/x86/include/asm/irqflags.h:127 kernel/rcu/tree.c:3096) 
[ 22.685895][ T345] ? __pfx____sys_sendmsg (net/socket.c:2657) 
[ 22.686203][ T345] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 22.686529][ T345] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 22.686851][ T345] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 22.687169][ T345] ? __virt_addr_valid (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:953 ./include/linux/mmzone.h:2168 arch/x86/mm/physaddr.c:65) 
[ 22.687482][ T345] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 22.687848][ T345] __sys_sendmsg (net/socket.c:2700) 
[ 22.688175][ T345] ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3119) 
[ 22.688584][ T345] ? __pfx___sys_sendmsg (net/socket.c:2685) 
[ 22.688939][ T345] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 22.689257][ T345] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 22.689572][ T345] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[   22.689988][  T345] RIP: 0033:0x7fd8bee3d1e7
[ 22.690305][ T345] 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)
[   22.691442][  T345] RSP: 002b:00007ffd97f56168 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[   22.691909][  T345] RAX: ffffffffffffffda RBX: 00007ffd97f56890 RCX: 00007fd8bee3d1e7
[   22.692398][  T345] RDX: 0000000000000000 RSI: 00007ffd97f561d0 RDI: 0000000000000005
[   22.692874][  T345] RBP: 0000000000000004 R08: 0000000000000003 R09: 0000000000000000
[   22.693338][  T345] R10: 000000003fb11910 R11: 0000000000000246 R12: 0000000000000004
[   22.693801][  T345] R13: 00000000686e12f8 R14: 0000000000499600 R15: 0000000000000000
| [   23.095125][  T348] ------------[ cut here ]------------
| [ 23.095475][ T348] WARNING: CPU: 3 PID: 348 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) 
| [   23.096096][  T348] Modules linked in: bridge stp llc ip6_gre ip6_tunnel tunnel6 act_gact cls_matchall ip_gre gre sch_ingress vrf veth
| [   23.097492][  T348] Tainted: [W]=WARN
[   23.097770][  T348] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 23.098165][ T348] 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) 
[ 23.098605][ T348] Code: 00 00 8b 05 d7 bc 3a 02 85 c0 0f 84 52 fe ff ff 48 8d bb a0 0c 00 00 be ff ff ff ff e8 1a 63 7b 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 d7 bc 3a 02    	mov    0x23abcd7(%rip),%eax        # 0x23abcdf
   8:	85 c0                	test   %eax,%eax
   a:	0f 84 52 fe ff ff    	je     0xfffffffffffffe62
  10:	48 8d bb a0 0c 00 00 	lea    0xca0(%rbx),%rdi
  17:	be ff ff ff ff       	mov    $0xffffffff,%esi
  1c:	e8 1a 63 7b 00       	call   0x7b633b
  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
[   23.099729][  T348] RSP: 0018:ffffc90000557000 EFLAGS: 00010246
[   23.100117][  T348] RAX: 0000000000000000 RBX: ffff88800eb61000 RCX: 0000000000000001
[   23.100585][  T348] RDX: 0000000000000000 RSI: ffffffffb0a9b941 RDI: ffffffffb02555e0
[   23.101079][  T348] RBP: ffffc900005570e8 R08: ffff88800eb61218 R09: 0000000000000000
[   23.101545][  T348] R10: ffffc90000557118 R11: ffffffffb0f79160 R12: 1ffff920000aae04
[   23.102021][  T348] R13: 00000000000005b6 R14: ffffc90000557118 R15: ffff88800eb61218
[   23.102488][  T348] FS:  00007fc949b10800(0000) GS:ffff888083837000(0000) knlGS:0000000000000000
[   23.103044][  T348] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   23.103456][  T348] CR2: 00007fc949c10130 CR3: 0000000005e90003 CR4: 0000000000772ef0
[   23.103920][  T348] PKRU: 55555554
[   23.104148][  T348] Call Trace:
[   23.104394][  T348]  <TASK>
[ 23.104549][ T348] ? __pfx_ip_route_output_key_hash (net/ipv4/route.c:2684) 
[ 23.104928][ T348] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 23.105239][ T348] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 23.105564][ T348] ? crng_make_state (drivers/char/random.c:393 (discriminator 1)) 
[ 23.105880][ T348] ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4475) 
[ 23.106197][ T348] netif_set_mtu (net/core/dev.c:9652) 
[ 23.106519][ T348] ? __pfx_netif_set_mtu (net/core/dev.c:9647) 
[ 23.106847][ T348] ? dev_addr_mod (net/core/dev_addr_lists.c:584) 
[ 23.107161][ T348] dev_set_mtu (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:47 net/core/dev_api.c:249) 
[ 23.107400][ T348] ip_tunnel_newlink (net/ipv4/ip_tunnel.c:1246) 
[ 23.107721][ T348] ? __pfx_ip_tunnel_newlink (net/ipv4/ip_tunnel.c:1209) 
[ 23.108034][ T348] ipgre_newlink (net/ipv4/ip_gre.c:1415 (discriminator 4)) ip_gre 
[ 23.108344][ T348] ? __pfx_ipgre_newlink (net/ipv4/ip_gre.c:1401) ip_gre 
[ 23.108747][ T348] ? __pfx_validate_linkmsg (net/core/rtnetlink.c:2660) 
[ 23.109069][ T348] ? rtnl_create_link (net/core/rtnetlink.c:3642) 
[ 23.109381][ T348] rtnl_newlink_create (net/core/rtnetlink.c:3825) 
[ 23.109707][ T348] ? __pfx_rtnl_newlink_create (net/core/rtnetlink.c:3791) 
[ 23.110027][ T348] ? __dev_get_by_name (net/core/dev.c:865) 
[ 23.110337][ T348] ? rtnl_dev_get (net/core/rtnetlink.c:3404) 
[ 23.110650][ T348] ? __pfx_rtnl_dev_get (net/core/rtnetlink.c:3404) 
[ 23.110962][ T348] ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4056) 
[ 23.111266][ T348] ? reacquire_held_locks (kernel/locking/lockdep.c:5388) 
[ 23.111606][ T348] __rtnl_newlink (net/core/rtnetlink.c:3942) 
[ 23.111922][ T348] rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4058) 
[ 23.112245][ T348] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 23.112586][ T348] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/rtnetlink.c:6944) 
[ 23.112895][ T348] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 23.113209][ T348] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 23.113524][ T348] rtnetlink_rcv_msg (net/core/rtnetlink.c:6946) 
[ 23.113836][ T348] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 23.114145][ T348] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 23.114461][ T348] netlink_rcv_skb (net/netlink/af_netlink.c:2551) 
[ 23.114774][ T348] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 23.115080][ T348] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2528) 
[ 23.115406][ T348] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/netlink/af_netlink.c:340) 
[ 23.115718][ T348] ? 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) 
[ 23.116027][ T348] netlink_unicast (net/netlink/af_netlink.c:1320 net/netlink/af_netlink.c:1346) 
[ 23.116334][ T348] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1331) 
[ 23.116646][ T348] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 23.116964][ T348] netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 23.117284][ T348] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1815) 
[ 23.117601][ T348] ? __import_iovec (lib/iov_iter.c:1441 lib/iov_iter.c:1456) 
[ 23.117915][ T348] ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 23.118243][ T348] ? __pfx_____sys_sendmsg (net/socket.c:2560) 
[ 23.118583][ T348] ? __pfx_copy_msghdr_from_user (net/socket.c:2540) 
[ 23.118997][ T348] ___sys_sendmsg (net/socket.c:2670) 
[ 23.119323][ T348] ? __pfx____sys_sendmsg (net/socket.c:2657) 
[ 23.119655][ T348] ? __pfx_handle_pte_fault (mm/memory.c:6026) 
[ 23.119979][ T348] ? reacquire_held_locks (kernel/locking/lockdep.c:5388) 
[ 23.120301][ T348] ? do_user_addr_fault (arch/x86/mm/fault.c:1327) 
[ 23.120634][ T348] ? __handle_mm_fault (mm/memory.c:6212) 
[ 23.120959][ T348] ? __pfx___handle_mm_fault (mm/memory.c:6121) 
[ 23.121282][ T348] ? lock_vma_under_rcu (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 mm/mmap_lock.c:171) 
[ 23.121627][ T348] __sys_sendmsg (net/socket.c:2700) 
[ 23.121951][ T348] ? __pfx___sys_sendmsg (net/socket.c:2685) 
[ 23.122270][ T348] ? 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) 
[ 23.122609][ T348] ? 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) 
[ 23.122933][ T348] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 23.123256][ T348] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 23.123581][ T348] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[   23.123982][  T348] RIP: 0033:0x7fc949cdd1e7
[ 23.124313][ T348] 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)
[   23.125488][  T348] RSP: 002b:00007fffba758d88 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[   23.125983][  T348] RAX: ffffffffffffffda RBX: 00007fffba7594b0 RCX: 00007fc949cdd1e7
[   23.126473][  T348] RDX: 0000000000000000 RSI: 00007fffba758df0 RDI: 0000000000000005
[   23.126949][  T348] RBP: 0000000000000008 R08: 00000000000000ac R09: 0000000000000000
[   23.127434][  T348] R10: 00007fc949bd56f8 R11: 0000000000000246 R12: 00007fffba7594d0
[   23.127912][  T348] R13: 00000000686e12f8 R14: 0000000000499600 R15: 00007fffba758ed8
| [   23.753350][  T355] ------------[ cut here ]------------
| [ 23.753688][ T355] WARNING: CPU: 0 PID: 355 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) 
| [   23.754316][  T355] Modules linked in: bridge stp llc ip6_gre ip6_tunnel tunnel6 act_gact cls_matchall ip_gre gre sch_ingress vrf veth
| [   23.755756][  T355] Tainted: [W]=WARN
[   23.756002][  T355] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 23.756419][ T355] 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) 
[ 23.756754][ T355] Code: 00 00 8b 05 d7 bc 3a 02 85 c0 0f 84 52 fe ff ff 48 8d bb a0 0c 00 00 be ff ff ff ff e8 1a 63 7b 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 d7 bc 3a 02    	mov    0x23abcd7(%rip),%eax        # 0x23abcdf
   8:	85 c0                	test   %eax,%eax
   a:	0f 84 52 fe ff ff    	je     0xfffffffffffffe62
  10:	48 8d bb a0 0c 00 00 	lea    0xca0(%rbx),%rdi
  17:	be ff ff ff ff       	mov    $0xffffffff,%esi
  1c:	e8 1a 63 7b 00       	call   0x7b633b
  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
[   23.757894][  T355] RSP: 0018:ffffc90000706ef0 EFLAGS: 00010246
[   23.758298][  T355] RAX: 0000000000000000 RBX: ffff88800ebb2000 RCX: 0000000000000001
[   23.758801][  T355] RDX: 0000000000000000 RSI: ffffffffb0a9b941 RDI: ffffffffb02555e0
[   23.759287][  T355] RBP: ffffc90000706fe0 R08: 0000000000000000 R09: 0000000000000000
[   23.759778][  T355] R10: ffffc90000707010 R11: ffffffffb18a8918 R12: 1ffff920000e0de2
[   23.760261][  T355] R13: 00000000000005dc R14: ffffc90000707010 R15: ffff88800ebb2f08
[   23.760761][  T355] FS:  00007f2316bc6800(0000) GS:ffff8880836b7000(0000) knlGS:0000000000000000
[   23.761328][  T355] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   23.761737][  T355] CR2: 00000000004e5ac0 CR3: 00000000060f0001 CR4: 0000000000772ef0
[   23.762214][  T355] PKRU: 55555554
[   23.762463][  T355] Call Trace:
[   23.762707][  T355]  <TASK>
[ 23.762872][ T355] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 23.763197][ T355] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 23.763549][ T355] ? mark_held_locks (kernel/locking/lockdep.c:4328) 
[ 23.763870][ T355] ? _raw_spin_unlock_irqrestore (./include/linux/spinlock_api_smp.h:151 kernel/locking/spinlock.c:194) 
[ 23.764268][ T355] ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4475) 
[ 23.764600][ T355] netif_set_mtu (net/core/dev.c:9652) 
[ 23.764921][ T355] ? __pfx_netif_set_mtu (net/core/dev.c:9647) 
[ 23.765250][ T355] ? br_get_link_af_size_filtered (net/bridge/br_netlink.c:116) bridge 
[ 23.765711][ T355] dev_set_mtu (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:47 net/core/dev_api.c:249) 
[ 23.765954][ T355] br_mtu_auto_adjust (net/bridge/br_if.c:525) bridge 
[ 23.766398][ T355] br_add_if (net/bridge/br_if.c:697) bridge 
[ 23.766767][ T355] do_set_master (net/core/rtnetlink.c:2948) 
[ 23.767093][ T355] do_setlink.constprop.0 (net/core/rtnetlink.c:3150) 
[ 23.767423][ T355] ? __pfx_do_setlink.constprop.0 (net/core/rtnetlink.c:3021) 
[ 23.767829][ T355] ? rcu_read_lock_any_held (kernel/rcu/update.c:386 kernel/rcu/update.c:380) 
[ 23.768153][ T355] ? validate_chain (kernel/locking/lockdep.c:3804 kernel/locking/lockdep.c:3824 kernel/locking/lockdep.c:3879) 
[ 23.768486][ T355] ? __kernel_text_address (kernel/extable.c:79) 
[ 23.768812][ T355] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 23.769135][ T355] ? __mutex_trylock_common (./arch/x86/include/asm/atomic64_64.h:101 ./include/linux/atomic/atomic-arch-fallback.h:4296 ./include/linux/atomic/atomic-long.h:1482 ./include/linux/atomic/atomic-instrumented.h:4458 kernel/locking/mutex.c:113) 
[ 23.769467][ T355] ? __pfx___mutex_trylock_common (kernel/locking/mutex.c:88) 
[ 23.769863][ T355] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 23.770182][ T355] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 23.770520][ T355] ? trace_contention_end (./include/trace/events/lock.h:122 (discriminator 21)) 
[ 23.770843][ T355] ? __mutex_lock (./arch/x86/include/asm/preempt.h:104 kernel/locking/mutex.c:728 kernel/locking/mutex.c:747) 
[ 23.771162][ T355] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 23.771491][ T355] ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4056) 
[ 23.771813][ T355] ? __create_object (mm/kmemleak.c:771) 
[ 23.772163][ T355] ? __pfx___mutex_lock (kernel/locking/mutex.c:746) 
[ 23.772499][ T355] ? trace_cap_capable (./include/trace/events/capability.h:26 (discriminator 21)) 
[ 23.772829][ T355] ? _raw_spin_unlock_irqrestore (./arch/x86/include/asm/preempt.h:104 ./include/linux/spinlock_api_smp.h:152 kernel/locking/spinlock.c:194) 
[ 23.773227][ T355] ? __rtnl_newlink (net/core/rtnetlink.c:3907) 
[ 23.773568][ T355] rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4058) 
[ 23.773895][ T355] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 23.774215][ T355] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 23.774551][ T355] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 23.774876][ T355] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/rtnetlink.c:6944) 
[ 23.775195][ T355] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 23.775532][ T355] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 23.775852][ T355] rtnetlink_rcv_msg (net/core/rtnetlink.c:6946) 
[ 23.776172][ T355] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 23.776684][ T355] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 23.777261][ T355] netlink_rcv_skb (net/netlink/af_netlink.c:2551) 
[ 23.777783][ T355] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 23.778108][ T355] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2528) 
[ 23.778465][ T355] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/netlink/af_netlink.c:340) 
[ 23.778791][ T355] ? 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) 
[ 23.779116][ T355] netlink_unicast (net/netlink/af_netlink.c:1320 net/netlink/af_netlink.c:1346) 
[ 23.779451][ T355] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1331) 
[ 23.779770][ T355] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 23.780096][ T355] netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 23.780430][ T355] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1815) 
[ 23.780757][ T355] ? __import_iovec (lib/iov_iter.c:1441 lib/iov_iter.c:1456) 
[ 23.781086][ T355] ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 23.781419][ T355] ? __pfx_____sys_sendmsg (net/socket.c:2560) 
[ 23.781737][ T355] ? __pfx_copy_msghdr_from_user (net/socket.c:2540) 
[ 23.782144][ T355] ___sys_sendmsg (net/socket.c:2670) 
[ 23.782469][ T355] ? kasan_record_aux_stack (mm/kasan/generic.c:548) 
[ 23.782803][ T355] ? __call_rcu_common.constprop.0 (./arch/x86/include/asm/irqflags.h:26 ./arch/x86/include/asm/irqflags.h:109 ./arch/x86/include/asm/irqflags.h:127 kernel/rcu/tree.c:3096) 
[ 23.783219][ T355] ? __pfx____sys_sendmsg (net/socket.c:2657) 
[ 23.783557][ T355] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 23.783880][ T355] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 23.784206][ T355] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 23.784537][ T355] ? __virt_addr_valid (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:953 ./include/linux/mmzone.h:2168 arch/x86/mm/physaddr.c:65) 
[ 23.784860][ T355] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 23.785188][ T355] __sys_sendmsg (net/socket.c:2700) 
[ 23.785517][ T355] ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3119) 
[ 23.785918][ T355] ? __pfx___sys_sendmsg (net/socket.c:2685) 
[ 23.786247][ T355] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 23.786575][ T355] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 23.786900][ T355] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[   23.787299][  T355] RIP: 0033:0x7f2316d931e7
[ 23.787643][ T355] 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)
[   23.788816][  T355] RSP: 002b:00007ffe5d7fc538 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[   23.789305][  T355] RAX: ffffffffffffffda RBX: 00007ffe5d7fcc60 RCX: 00007f2316d931e7
[   23.789796][  T355] RDX: 0000000000000000 RSI: 00007ffe5d7fc5a0 RDI: 0000000000000005
[   23.790288][  T355] RBP: 0000000000000004 R08: 0000000000000003 R09: 0000000000000000
[   23.790776][  T355] R10: 00000000077aa910 R11: 0000000000000246 R12: 0000000000000004
[   23.791260][  T355] R13: 00000000686e12f9 R14: 0000000000499600 R15: 0000000000000000
| [   73.552633][  T589] ------------[ cut here ]------------
| [ 73.552987][ T589] WARNING: CPU: 0 PID: 589 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) 
| [   73.553629][  T589] Modules linked in: cls_flower act_mirred 8021q bridge stp llc ip6_gre ip6_tunnel tunnel6 act_gact cls_matchall ip_gre gre sch_ingress vrf veth
| [   73.556611][  T589] Tainted: [W]=WARN
[   73.556855][  T589] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 73.557256][ T589] 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) 
[ 73.557594][ T589] Code: 00 00 8b 05 d7 bc 3a 02 85 c0 0f 84 52 fe ff ff 48 8d bb a0 0c 00 00 be ff ff ff ff e8 1a 63 7b 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 d7 bc 3a 02    	mov    0x23abcd7(%rip),%eax        # 0x23abcdf
   8:	85 c0                	test   %eax,%eax
   a:	0f 84 52 fe ff ff    	je     0xfffffffffffffe62
  10:	48 8d bb a0 0c 00 00 	lea    0xca0(%rbx),%rdi
  17:	be ff ff ff ff       	mov    $0xffffffff,%esi
  1c:	e8 1a 63 7b 00       	call   0x7b633b
  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
[   73.558807][  T589] RSP: 0018:ffffc90000fbef70 EFLAGS: 00010246
[   73.559217][  T589] RAX: 0000000000000000 RBX: ffff88800ebb2000 RCX: 0000000000000001
[   73.559700][  T589] RDX: 0000000000000000 RSI: ffffffffb0a9b941 RDI: ffffffffb02555e0
[   73.560185][  T589] RBP: ffffc90000fbf058 R08: 0000000000000000 R09: 0000000000000000
[   73.560673][  T589] R10: ffffc90000fbf088 R11: fffffffface00130 R12: 1ffff920001f7df2
[   73.561152][  T589] R13: 00000000000005dc R14: ffffc90000fbf088 R15: ffff88800ebb2f08
[   73.561640][  T589] FS:  00007fa910be5800(0000) GS:ffff8880836b7000(0000) knlGS:0000000000000000
[   73.562219][  T589] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   73.562613][  T589] CR2: 00000000004e5ac0 CR3: 000000000ebd0006 CR4: 0000000000772ef0
[   73.563069][  T589] PKRU: 55555554
[   73.563296][  T589] Call Trace:
[   73.563535][  T589]  <TASK>
[ 73.563689][ T589] ? __call_rcu_common.constprop.0 (./arch/x86/include/asm/irqflags.h:26 ./arch/x86/include/asm/irqflags.h:109 ./arch/x86/include/asm/irqflags.h:127 kernel/rcu/tree.c:3096) 
[ 73.564074][ T589] ? br_del_if (net/bridge/br_if.c:742) bridge 
[ 73.564447][ T589] ? do_set_master (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:41 net/core/rtnetlink.c:2933) 
[ 73.564753][ T589] ? do_setlink.constprop.0 (net/core/rtnetlink.c:3150) 
[ 73.565063][ T589] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 73.565365][ T589] ? netlink_unicast (net/netlink/af_netlink.c:1320 net/netlink/af_netlink.c:1346) 
[ 73.565685][ T589] ? netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 73.565990][ T589] ? ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 73.566292][ T589] ? ___sys_sendmsg (net/socket.c:2670) 
[ 73.566622][ T589] ? __sys_sendmsg (net/socket.c:2700) 
[ 73.566925][ T589] ? do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 73.567232][ T589] ? entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[ 73.567635][ T589] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 73.567950][ T589] netif_set_mtu (net/core/dev.c:9652) 
[ 73.568293][ T589] ? __pfx_netif_set_mtu (net/core/dev.c:9647) 
[ 73.568651][ T589] dev_set_mtu (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:47 net/core/dev_api.c:249) 
[ 73.568898][ T589] br_mtu_auto_adjust (net/bridge/br_if.c:525) bridge 
[ 73.569343][ T589] br_del_if (net/bridge/br_if.c:743) bridge 
[ 73.569715][ T589] ? rtnl_is_locked (net/core/rtnetlink.c:169) 
[ 73.570036][ T589] do_set_master (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:41 net/core/rtnetlink.c:2933) 
[ 73.570361][ T589] do_setlink.constprop.0 (net/core/rtnetlink.c:3150) 
[ 73.570693][ T589] ? __pfx_do_setlink.constprop.0 (net/core/rtnetlink.c:3021) 
[ 73.571097][ T589] ? rcu_read_lock_any_held (kernel/rcu/update.c:386 kernel/rcu/update.c:380) 
[ 73.571423][ T589] ? validate_chain (kernel/locking/lockdep.c:3804 kernel/locking/lockdep.c:3824 kernel/locking/lockdep.c:3879) 
[ 73.571752][ T589] ? __kernel_text_address (kernel/extable.c:79) 
[ 73.572077][ T589] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 73.572411][ T589] ? __mutex_trylock_common (./arch/x86/include/asm/atomic64_64.h:101 ./include/linux/atomic/atomic-arch-fallback.h:4296 ./include/linux/atomic/atomic-long.h:1482 ./include/linux/atomic/atomic-instrumented.h:4458 kernel/locking/mutex.c:113) 
[ 73.572733][ T589] ? __pfx___mutex_trylock_common (kernel/locking/mutex.c:88) 
[ 73.573130][ T589] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 73.573462][ T589] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 73.573781][ T589] ? trace_contention_end (./include/trace/events/lock.h:122 (discriminator 21)) 
[ 73.574107][ T589] ? __mutex_lock (./arch/x86/include/asm/preempt.h:104 kernel/locking/mutex.c:728 kernel/locking/mutex.c:747) 
[ 73.574439][ T589] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 73.574760][ T589] ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4056) 
[ 73.575074][ T589] ? __create_object (mm/kmemleak.c:771) 
[ 73.575408][ T589] ? __pfx___mutex_lock (kernel/locking/mutex.c:746) 
[ 73.575727][ T589] ? trace_cap_capable (./include/trace/events/capability.h:26 (discriminator 21)) 
[ 73.576045][ T589] ? _raw_spin_unlock_irqrestore (./arch/x86/include/asm/preempt.h:104 ./include/linux/spinlock_api_smp.h:152 kernel/locking/spinlock.c:194) 
[ 73.576485][ T589] ? __rtnl_newlink (net/core/rtnetlink.c:3907) 
[ 73.576819][ T589] rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4058) 
[ 73.577146][ T589] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 73.577475][ T589] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 73.577806][ T589] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 73.578127][ T589] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/rtnetlink.c:6944) 
[ 73.578452][ T589] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 73.578783][ T589] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 73.579107][ T589] rtnetlink_rcv_msg (net/core/rtnetlink.c:6946) 
[ 73.579438][ T589] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 73.579760][ T589] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 73.580085][ T589] netlink_rcv_skb (net/netlink/af_netlink.c:2551) 
[ 73.580414][ T589] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 73.580731][ T589] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2528) 
[ 73.581060][ T589] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/netlink/af_netlink.c:340) 
[ 73.581393][ T589] ? 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) 
[ 73.581713][ T589] netlink_unicast (net/netlink/af_netlink.c:1320 net/netlink/af_netlink.c:1346) 
[ 73.582033][ T589] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1331) 
[ 73.582352][ T589] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 73.582686][ T589] netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 73.583007][ T589] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1815) 
[ 73.583325][ T589] ? __import_iovec (lib/iov_iter.c:1441 lib/iov_iter.c:1456) 
[ 73.583658][ T589] ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 73.583987][ T589] ? __pfx_____sys_sendmsg (net/socket.c:2560) 
[ 73.584303][ T589] ? __pfx_copy_msghdr_from_user (net/socket.c:2540) 
[ 73.584723][ T589] ___sys_sendmsg (net/socket.c:2670) 
[ 73.585040][ T589] ? kasan_record_aux_stack (mm/kasan/generic.c:548) 
[ 73.585354][ T589] ? __call_rcu_common.constprop.0 (./arch/x86/include/asm/irqflags.h:26 ./arch/x86/include/asm/irqflags.h:109 ./arch/x86/include/asm/irqflags.h:127 kernel/rcu/tree.c:3096) 
[ 73.585767][ T589] ? __pfx____sys_sendmsg (net/socket.c:2657) 
[ 73.586095][ T589] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 73.586430][ T589] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 73.586758][ T589] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 73.587085][ T589] ? __virt_addr_valid (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:953 ./include/linux/mmzone.h:2168 arch/x86/mm/physaddr.c:65) 
[ 73.587410][ T589] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 73.587735][ T589] __sys_sendmsg (net/socket.c:2700) 
[ 73.588053][ T589] ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3119) 
[ 73.588458][ T589] ? __pfx___sys_sendmsg (net/socket.c:2685) 
[ 73.588805][ T589] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 73.589125][ T589] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 73.589457][ T589] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[   73.589868][  T589] RIP: 0033:0x7fa910db21e7
[ 73.590184][ T589] 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)
[   73.591298][  T589] RSP: 002b:00007fff2a08f6f8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[   73.591769][  T589] RAX: ffffffffffffffda RBX: 00007fff2a08fe20 RCX: 00007fa910db21e7
[   73.592228][  T589] RDX: 0000000000000000 RSI: 00007fff2a08f760 RDI: 0000000000000005
[   73.592694][  T589] RBP: 0000000000000003 R08: 0000000000000003 R09: 0000000000000078
[   73.593160][  T589] R10: 00007fa910cafee8 R11: 0000000000000246 R12: 0000000000000003


Finger prints:
netif_set_mtu_ext:netif_set_mtu:dev_set_mtu:br_mtu_auto_adjust:br_del_if
netif_set_mtu_ext:netif_set_mtu:dev_set_mtu:ip_tunnel_newlink:ipgre_newlink
netif_set_mtu_ext:netif_set_mtu:dev_set_mtu:br_mtu_auto_adjust:br_add_if