======================================
| [   34.210064][  T419] GACT probability NOT on
| [   40.333263][  T476] ------------[ cut here ]------------
| [ 40.333757][ T476] WARNING: CPU: 1 PID: 476 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) 
| [   40.334346][  T476] Modules linked in: act_gact cls_flower sch_ingress ip6_gre ip6_tunnel tunnel6 gre 8021q vrf veth
[   40.336786][  T476] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 40.337150][ T476] 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) 
[ 40.337459][ T476] 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
[   40.338528][  T476] RSP: 0018:ffffc900007c7140 EFLAGS: 00010246
[   40.338897][  T476] RAX: 0000000000000000 RBX: ffff888007ddc000 RCX: 0000000000000001
[   40.339335][  T476] RDX: 0000000000000000 RSI: ffffffff8969b941 RDI: ffffffff88e555e0
[   40.339780][  T476] RBP: ffffc900007c7230 R08: ffff888009186800 R09: 0000000000000000
[   40.340212][  T476] R10: ffffc900007c75c8 R11: ffffffff8a450668 R12: 1ffff920000f8e2c
[   40.340652][  T476] R13: 00000000000007d0 R14: ffffc900007c7880 R15: ffff88800986c3e0
[   40.341102][  T476] FS:  00007f03c2581800(0000) GS:ffff8880aab37000(0000) knlGS:0000000000000000
[   40.341623][  T476] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   40.341990][  T476] CR2: 00000000004e5aa0 CR3: 0000000005231002 CR4: 0000000000772ef0
[   40.342427][  T476] PKRU: 55555554
[   40.342658][  T476] Call Trace:
[   40.342880][  T476]  <TASK>
[ 40.343029][ T476] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 40.343331][ T476] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 40.343628][ T476] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 40.343920][ T476] ? __pfx_validate_linkmsg (net/core/rtnetlink.c:2660) 
[ 40.344207][ T476] ? is_bpf_text_address (kernel/bpf/core.c:777) 
[ 40.344500][ T476] ? kernel_text_address (kernel/extable.c:97 kernel/extable.c:94) 
[ 40.344809][ T476] do_setlink.constprop.0 (net/core/rtnetlink.c:3106) 
[ 40.345108][ T476] ? __pfx_do_setlink.constprop.0 (net/core/rtnetlink.c:3021) 
[ 40.345484][ T476] ? rcu_read_lock_any_held (kernel/rcu/update.c:386 kernel/rcu/update.c:380) 
[ 40.346004][ T476] ? validate_chain (kernel/locking/lockdep.c:3804 kernel/locking/lockdep.c:3824 kernel/locking/lockdep.c:3879) 
[ 40.346297][ T476] ? __kernel_text_address (kernel/extable.c:79) 
[ 40.346605][ T476] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 40.346898][ T476] ? __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) 
[ 40.347189][ T476] ? __pfx___mutex_trylock_common (kernel/locking/mutex.c:88) 
[ 40.347558][ T476] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 40.347858][ T476] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 40.348146][ T476] ? trace_contention_end (./include/trace/events/lock.h:122 (discriminator 21)) 
[ 40.348437][ T476] ? __mutex_lock (./arch/x86/include/asm/preempt.h:104 kernel/locking/mutex.c:728 kernel/locking/mutex.c:747) 
[ 40.348741][ T476] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 40.349034][ T476] ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4056) 
[ 40.349322][ T476] ? __create_object (mm/kmemleak.c:771) 
[ 40.349623][ T476] ? __pfx___mutex_lock (kernel/locking/mutex.c:746) 
[ 40.349914][ T476] ? trace_cap_capable (./include/trace/events/capability.h:26 (discriminator 21)) 
[ 40.350209][ T476] ? _raw_spin_unlock_irqrestore (./arch/x86/include/asm/preempt.h:104 ./include/linux/spinlock_api_smp.h:152 kernel/locking/spinlock.c:194) 
[ 40.350583][ T476] ? __rtnl_newlink (net/core/rtnetlink.c:3907) 
[ 40.350882][ T476] rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4058) 
[ 40.351191][ T476] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 40.351480][ T476] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 40.351784][ T476] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 40.352076][ T476] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/rtnetlink.c:6944) 
[ 40.352370][ T476] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 40.352672][ T476] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 40.352959][ T476] rtnetlink_rcv_msg (net/core/rtnetlink.c:6946) 
[ 40.353252][ T476] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 40.353557][ T476] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 40.353852][ T476] netlink_rcv_skb (net/netlink/af_netlink.c:2551) 
[ 40.354141][ T476] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 40.354432][ T476] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2528) 
[ 40.354754][ T476] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/netlink/af_netlink.c:340) 
[ 40.355042][ T476] ? 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) 
[ 40.355335][ T476] netlink_unicast (net/netlink/af_netlink.c:1320 net/netlink/af_netlink.c:1346) 
[ 40.355640][ T476] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1331) 
[ 40.355929][ T476] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 40.356222][ T476] netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 40.356533][ T476] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1815) 
[ 40.356831][ T476] ? __import_iovec (lib/iov_iter.c:1441 lib/iov_iter.c:1456) 
[ 40.357131][ T476] ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 40.357428][ T476] ? __pfx_____sys_sendmsg (net/socket.c:2560) 
[ 40.357727][ T476] ? __pfx_copy_msghdr_from_user (net/socket.c:2540) 
[ 40.358104][ T476] ___sys_sendmsg (net/socket.c:2670) 
[ 40.358395][ T476] ? kasan_record_aux_stack (mm/kasan/generic.c:548) 
[ 40.358697][ T476] ? __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) 
[ 40.359068][ T476] ? __pfx____sys_sendmsg (net/socket.c:2657) 
[ 40.359363][ T476] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 40.359682][ T476] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 40.359979][ T476] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 40.360268][ T476] ? __virt_addr_valid (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:953 ./include/linux/mmzone.h:2168 arch/x86/mm/physaddr.c:65) 
[ 40.360575][ T476] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 40.360892][ T476] __sys_sendmsg (net/socket.c:2700) 
[ 40.361194][ T476] ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3119) 
[ 40.361566][ T476] ? __pfx___sys_sendmsg (net/socket.c:2685) 
[ 40.361870][ T476] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 40.362162][ T476] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 40.362455][ T476] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[   40.362828][  T476] RIP: 0033:0x7f03c274e1e7
[ 40.363134][ T476] 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)
[   40.364196][  T476] RSP: 002b:00007ffdc45f6648 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[   40.364651][  T476] RAX: ffffffffffffffda RBX: 00007ffdc45f6d70 RCX: 00007f03c274e1e7
[   40.365094][  T476] RDX: 0000000000000000 RSI: 00007ffdc45f66b0 RDI: 0000000000000005
[   40.365551][  T476] RBP: 0000000000000004 R08: 0000000000000003 R09: 0000000000000078
[   40.365991][  T476] R10: 00007f03c264bee8 R11: 0000000000000246 R12: 0000000000000004
[   40.366427][  T476] R13: 00000000686e1fa5 R14: 0000000000499600 R15: 0000000000000000
| [   40.491750][  T477] ------------[ cut here ]------------
| [ 40.492082][ T477] WARNING: CPU: 1 PID: 477 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) 
| [   40.494391][  T477] Modules linked in: act_gact cls_flower sch_ingress ip6_gre ip6_tunnel tunnel6 gre 8021q vrf veth
| [   40.495883][  T477] Tainted: [W]=WARN
[   40.496098][  T477] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 40.496442][ T477] 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) 
[ 40.496761][ T477] 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
[   40.497762][  T477] RSP: 0018:ffffc90000937140 EFLAGS: 00010246
[   40.498111][  T477] RAX: 0000000000000000 RBX: ffff888007c91000 RCX: 0000000000000001
[   40.498537][  T477] RDX: 0000000000000000 RSI: ffffffff8969b941 RDI: ffffffff88e555e0
[   40.498968][  T477] RBP: ffffc90000937230 R08: ffff88800b97e800 R09: 0000000000000000
[   40.499382][  T477] R10: ffffc900009375c8 R11: ffffffff8a450668 R12: 1ffff92000126e2c
[   40.499803][  T477] R13: 00000000000007d0 R14: ffffc90000937880 R15: ffff88800986f160
[   40.500217][  T477] FS:  00007f4a95f7e800(0000) GS:ffff8880aab37000(0000) knlGS:0000000000000000
[   40.500712][  T477] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   40.501081][  T477] CR2: 00000000004e5aa8 CR3: 000000000bf72004 CR4: 0000000000772ef0
[   40.501518][  T477] PKRU: 55555554
[   40.501726][  T477] Call Trace:
[   40.501935][  T477]  <TASK>
[ 40.502074][ T477] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 40.502370][ T477] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 40.502660][ T477] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 40.502953][ T477] ? __pfx_validate_linkmsg (net/core/rtnetlink.c:2660) 
[ 40.503234][ T477] ? is_bpf_text_address (kernel/bpf/core.c:777) 
[ 40.503537][ T477] ? kernel_text_address (kernel/extable.c:97 kernel/extable.c:94) 
[ 40.503818][ T477] do_setlink.constprop.0 (net/core/rtnetlink.c:3106) 
[ 40.504103][ T477] ? __pfx_do_setlink.constprop.0 (net/core/rtnetlink.c:3021) 
[ 40.504453][ T477] ? rcu_read_lock_any_held (kernel/rcu/update.c:386 kernel/rcu/update.c:380) 
[ 40.504741][ T477] ? validate_chain (kernel/locking/lockdep.c:3804 kernel/locking/lockdep.c:3824 kernel/locking/lockdep.c:3879) 
[ 40.505017][ T477] ? __kernel_text_address (kernel/extable.c:79) 
[ 40.505302][ T477] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 40.505591][ T477] ? __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) 
[ 40.505870][ T477] ? __pfx___mutex_trylock_common (kernel/locking/mutex.c:88) 
[ 40.506215][ T477] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 40.506493][ T477] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 40.506785][ T477] ? trace_contention_end (./include/trace/events/lock.h:122 (discriminator 21)) 
[ 40.507076][ T477] ? __mutex_lock (./arch/x86/include/asm/preempt.h:104 kernel/locking/mutex.c:728 kernel/locking/mutex.c:747) 
[ 40.507355][ T477] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 40.507644][ T477] ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4056) 
[ 40.507918][ T477] ? __create_object (mm/kmemleak.c:771) 
[ 40.508197][ T477] ? __pfx___mutex_lock (kernel/locking/mutex.c:746) 
[ 40.508477][ T477] ? trace_cap_capable (./include/trace/events/capability.h:26 (discriminator 21)) 
[ 40.508772][ T477] ? _raw_spin_unlock_irqrestore (./arch/x86/include/asm/preempt.h:104 ./include/linux/spinlock_api_smp.h:152 kernel/locking/spinlock.c:194) 
[ 40.509124][ T477] ? __rtnl_newlink (net/core/rtnetlink.c:3907) 
[ 40.509409][ T477] rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4058) 
[ 40.509712][ T477] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 40.509993][ T477] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 40.510274][ T477] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 40.510571][ T477] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/rtnetlink.c:6944) 
[ 40.510859][ T477] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 40.511162][ T477] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 40.511437][ T477] rtnetlink_rcv_msg (net/core/rtnetlink.c:6946) 
[ 40.511731][ T477] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 40.512018][ T477] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 40.512301][ T477] netlink_rcv_skb (net/netlink/af_netlink.c:2551) 
[ 40.512593][ T477] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 40.512873][ T477] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2528) 
[ 40.513160][ T477] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/netlink/af_netlink.c:340) 
[ 40.513436][ T477] ? 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) 
[ 40.513731][ T477] netlink_unicast (net/netlink/af_netlink.c:1320 net/netlink/af_netlink.c:1346) 
[ 40.514012][ T477] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1331) 
[ 40.514286][ T477] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 40.514587][ T477] netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 40.514878][ T477] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1815) 
[ 40.515157][ T477] ? __import_iovec (lib/iov_iter.c:1441 lib/iov_iter.c:1456) 
[ 40.515443][ T477] ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 40.515734][ T477] ? __pfx_____sys_sendmsg (net/socket.c:2560) 
[ 40.516014][ T477] ? __pfx_copy_msghdr_from_user (net/socket.c:2540) 
[ 40.516372][ T477] ___sys_sendmsg (net/socket.c:2670) 
[ 40.516667][ T477] ? kasan_record_aux_stack (mm/kasan/generic.c:548) 
[ 40.516954][ T477] ? __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) 
[ 40.517298][ T477] ? __pfx____sys_sendmsg (net/socket.c:2657) 
[ 40.517596][ T477] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 40.517876][ T477] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 40.518163][ T477] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 40.518439][ T477] ? __virt_addr_valid (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:953 ./include/linux/mmzone.h:2168 arch/x86/mm/physaddr.c:65) 
[ 40.518734][ T477] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 40.519036][ T477] __sys_sendmsg (net/socket.c:2700) 
[ 40.519315][ T477] ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3119) 
[ 40.519673][ T477] ? __pfx___sys_sendmsg (net/socket.c:2685) 
[ 40.519963][ T477] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 40.520250][ T477] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 40.520543][ T477] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[   40.520891][  T477] RIP: 0033:0x7f4a9614b1e7
[ 40.521190][ T477] 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)
[   40.522187][  T477] RSP: 002b:00007fff0ea13c98 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[   40.522617][  T477] RAX: ffffffffffffffda RBX: 00007fff0ea143c0 RCX: 00007f4a9614b1e7
[   40.523047][  T477] RDX: 0000000000000000 RSI: 00007fff0ea13d00 RDI: 0000000000000005
[   40.523460][  T477] RBP: 0000000000000004 R08: 0000000000000003 R09: 0000000000000078
[   40.523883][  T477] R10: 00007f4a96048ee8 R11: 0000000000000246 R12: 0000000000000004
[   40.524302][  T477] R13: 00000000686e1fa5 R14: 0000000000499600 R15: 0000000000000000
| [   40.649407][  T478] ------------[ cut here ]------------
| [ 40.649762][ T478] WARNING: CPU: 1 PID: 478 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) 
| [   40.650337][  T478] Modules linked in: act_gact cls_flower sch_ingress ip6_gre ip6_tunnel tunnel6 gre 8021q vrf veth
| [   40.652664][  T478] Tainted: [W]=WARN
[   40.653040][  T478] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 40.653402][ T478] 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) 
[ 40.653722][ T478] 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
[   40.654787][  T478] RSP: 0018:ffffc90000947140 EFLAGS: 00010246
[   40.655158][  T478] RAX: 0000000000000000 RBX: ffff888009b11000 RCX: 0000000000000001
[   40.655606][  T478] RDX: 0000000000000000 RSI: ffffffff8969b941 RDI: ffffffff88e555e0
[   40.656043][  T478] RBP: ffffc90000947230 R08: ffff8880020a2000 R09: 0000000000000000
[   40.656482][  T478] R10: ffffc900009475c8 R11: ffffffff8a450668 R12: 1ffff92000128e2c
[   40.656931][  T478] R13: 00000000000007d0 R14: ffffc90000947880 R15: ffff88800b86dfe0
[   40.657368][  T478] FS:  00007fd46603d800(0000) GS:ffff8880aab37000(0000) knlGS:0000000000000000
[   40.657887][  T478] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   40.658257][  T478] CR2: 00000000004e73b0 CR3: 000000000bb5b005 CR4: 0000000000772ef0
[   40.658710][  T478] PKRU: 55555554
[   40.658932][  T478] Call Trace:
[   40.659151][  T478]  <TASK>
[ 40.659301][ T478] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 40.659613][ T478] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 40.659908][ T478] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 40.660202][ T478] ? __pfx_validate_linkmsg (net/core/rtnetlink.c:2660) 
[ 40.660498][ T478] ? is_bpf_text_address (kernel/bpf/core.c:777) 
[ 40.660803][ T478] ? kernel_text_address (kernel/extable.c:97 kernel/extable.c:94) 
[ 40.661118][ T478] do_setlink.constprop.0 (net/core/rtnetlink.c:3106) 
[ 40.661419][ T478] ? __pfx_do_setlink.constprop.0 (net/core/rtnetlink.c:3021) 
[ 40.661804][ T478] ? rcu_read_lock_any_held (kernel/rcu/update.c:386 kernel/rcu/update.c:380) 
[ 40.662098][ T478] ? validate_chain (kernel/locking/lockdep.c:3804 kernel/locking/lockdep.c:3824 kernel/locking/lockdep.c:3879) 
[ 40.662389][ T478] ? __kernel_text_address (kernel/extable.c:79) 
[ 40.662701][ T478] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 40.663000][ T478] ? __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) 
[ 40.663290][ T478] ? __pfx___mutex_trylock_common (kernel/locking/mutex.c:88) 
[ 40.663664][ T478] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 40.663957][ T478] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 40.664245][ T478] ? trace_contention_end (./include/trace/events/lock.h:122 (discriminator 21)) 
[ 40.664542][ T478] ? __mutex_lock (./arch/x86/include/asm/preempt.h:104 kernel/locking/mutex.c:728 kernel/locking/mutex.c:747) 
[ 40.664840][ T478] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 40.665132][ T478] ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4056) 
[ 40.665420][ T478] ? __create_object (mm/kmemleak.c:771) 
[ 40.665722][ T478] ? __pfx___mutex_lock (kernel/locking/mutex.c:746) 
[ 40.666018][ T478] ? trace_cap_capable (./include/trace/events/capability.h:26 (discriminator 21)) 
[ 40.666308][ T478] ? _raw_spin_unlock_irqrestore (./arch/x86/include/asm/preempt.h:104 ./include/linux/spinlock_api_smp.h:152 kernel/locking/spinlock.c:194) 
[ 40.666678][ T478] ? __rtnl_newlink (net/core/rtnetlink.c:3907) 
[ 40.666976][ T478] rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4058) 
[ 40.667276][ T478] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 40.667581][ T478] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 40.667877][ T478] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 40.668169][ T478] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/rtnetlink.c:6944) 
[ 40.668455][ T478] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 40.668762][ T478] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 40.669054][ T478] rtnetlink_rcv_msg (net/core/rtnetlink.c:6946) 
[ 40.669347][ T478] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 40.669659][ T478] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 40.669955][ T478] netlink_rcv_skb (net/netlink/af_netlink.c:2551) 
[ 40.670249][ T478] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 40.670553][ T478] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2528) 
[ 40.670854][ T478] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/netlink/af_netlink.c:340) 
[ 40.671160][ T478] ? 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) 
[ 40.671461][ T478] netlink_unicast (net/netlink/af_netlink.c:1320 net/netlink/af_netlink.c:1346) 
[ 40.671770][ T478] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1331) 
[ 40.672058][ T478] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 40.672358][ T478] netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 40.672664][ T478] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1815) 
[ 40.672958][ T478] ? __import_iovec (lib/iov_iter.c:1441 lib/iov_iter.c:1456) 
[ 40.673257][ T478] ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 40.673565][ T478] ? __pfx_____sys_sendmsg (net/socket.c:2560) 
[ 40.673862][ T478] ? __pfx_copy_msghdr_from_user (net/socket.c:2540) 
[ 40.674239][ T478] ___sys_sendmsg (net/socket.c:2670) 
[ 40.674543][ T478] ? kasan_record_aux_stack (mm/kasan/generic.c:548) 
[ 40.674837][ T478] ? __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) 
[ 40.675203][ T478] ? __pfx____sys_sendmsg (net/socket.c:2657) 
[ 40.675498][ T478] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 40.675855][ T478] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 40.676159][ T478] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 40.676451][ T478] ? __virt_addr_valid (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:953 ./include/linux/mmzone.h:2168 arch/x86/mm/physaddr.c:65) 
[ 40.676750][ T478] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 40.677051][ T478] __sys_sendmsg (net/socket.c:2700) 
[ 40.677339][ T478] ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3119) 
[ 40.677712][ T478] ? __pfx___sys_sendmsg (net/socket.c:2685) 
[ 40.678016][ T478] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 40.678320][ T478] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 40.678623][ T478] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[   40.678984][  T478] RIP: 0033:0x7fd46620a1e7
[ 40.679284][ T478] 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)
[   40.680339][  T478] RSP: 002b:00007ffffa385be8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[   40.680792][  T478] RAX: ffffffffffffffda RBX: 00007ffffa386310 RCX: 00007fd46620a1e7
[   40.681243][  T478] RDX: 0000000000000000 RSI: 00007ffffa385c50 RDI: 0000000000000005
[   40.681688][  T478] RBP: 0000000000000004 R08: 0000000000000003 R09: 0000000000000078
[   40.682127][  T478] R10: 00007fd466107ee8 R11: 0000000000000246 R12: 0000000000000004
[   40.682579][  T478] R13: 00000000686e1fa5 R14: 0000000000499600 R15: 0000000000000000
| [   40.831069][  T479] ------------[ cut here ]------------
| [ 40.831388][ T479] WARNING: CPU: 0 PID: 479 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) 
| [   40.831965][  T479] Modules linked in: act_gact cls_flower sch_ingress ip6_gre ip6_tunnel tunnel6 gre 8021q vrf veth
| [   40.833154][  T479] Tainted: [W]=WARN
[   40.833363][  T479] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 40.833726][ T479] 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) 
[ 40.834012][ T479] 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
[   40.835016][  T479] RSP: 0018:ffffc90000947140 EFLAGS: 00010246
[   40.835363][  T479] RAX: 0000000000000000 RBX: ffff888006071000 RCX: 0000000000000001
[   40.835795][  T479] RDX: 0000000000000000 RSI: ffffffff8969b941 RDI: ffffffff88e555e0
[   40.836210][  T479] RBP: ffffc90000947230 R08: ffff88800513b800 R09: 0000000000000000
[   40.836641][  T479] R10: ffffc900009475c8 R11: ffffffff8a450668 R12: 1ffff92000128e2c
[   40.837053][  T479] R13: 00000000000007d0 R14: ffffc90000947880 R15: ffff88800b86d560
[   40.837461][  T479] FS:  00007f44d6e58800(0000) GS:ffff8880aaab7000(0000) knlGS:0000000000000000
[   40.837955][  T479] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   40.838307][  T479] CR2: 00000000004e5ab0 CR3: 0000000004d65002 CR4: 0000000000772ef0
[   40.838741][  T479] PKRU: 55555554
[   40.838948][  T479] Call Trace:
[   40.839152][  T479]  <TASK>
[ 40.839292][ T479] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 40.839596][ T479] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 40.839872][ T479] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 40.840152][ T479] ? __pfx_validate_linkmsg (net/core/rtnetlink.c:2660) 
[ 40.840425][ T479] ? is_bpf_text_address (kernel/bpf/core.c:777) 
[ 40.840726][ T479] ? kernel_text_address (kernel/extable.c:97 kernel/extable.c:94) 
[ 40.841005][ T479] do_setlink.constprop.0 (net/core/rtnetlink.c:3106) 
[ 40.841299][ T479] ? __pfx_do_setlink.constprop.0 (net/core/rtnetlink.c:3021) 
[ 40.841669][ T479] ? rcu_read_lock_any_held (kernel/rcu/update.c:386 kernel/rcu/update.c:380) 
[ 40.841947][ T479] ? validate_chain (kernel/locking/lockdep.c:3804 kernel/locking/lockdep.c:3824 kernel/locking/lockdep.c:3879) 
[ 40.842222][ T479] ? __kernel_text_address (kernel/extable.c:79) 
[ 40.842514][ T479] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 40.842807][ T479] ? __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) 
[ 40.843083][ T479] ? __pfx___mutex_trylock_common (kernel/locking/mutex.c:88) 
[ 40.843421][ T479] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 40.843724][ T479] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 40.843997][ T479] ? trace_contention_end (./include/trace/events/lock.h:122 (discriminator 21)) 
[ 40.844282][ T479] ? __mutex_lock (./arch/x86/include/asm/preempt.h:104 kernel/locking/mutex.c:728 kernel/locking/mutex.c:747) 
[ 40.844581][ T479] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 40.844860][ T479] ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4056) 
[ 40.845132][ T479] ? __create_object (mm/kmemleak.c:771) 
[ 40.845409][ T479] ? __pfx___mutex_lock (kernel/locking/mutex.c:746) 
[ 40.845714][ T479] ? trace_cap_capable (./include/trace/events/capability.h:26 (discriminator 21)) 
[ 40.845987][ T479] ? _raw_spin_unlock_irqrestore (./arch/x86/include/asm/preempt.h:104 ./include/linux/spinlock_api_smp.h:152 kernel/locking/spinlock.c:194) 
[ 40.846335][ T479] ? __rtnl_newlink (net/core/rtnetlink.c:3907) 
[ 40.846637][ T479] rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4058) 
[ 40.846919][ T479] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 40.847201][ T479] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 40.847482][ T479] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 40.847784][ T479] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/rtnetlink.c:6944) 
[ 40.848054][ T479] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 40.848328][ T479] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 40.848628][ T479] rtnetlink_rcv_msg (net/core/rtnetlink.c:6946) 
[ 40.848907][ T479] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 40.849183][ T479] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 40.849461][ T479] netlink_rcv_skb (net/netlink/af_netlink.c:2551) 
[ 40.849756][ T479] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 40.850032][ T479] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2528) 
[ 40.850317][ T479] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/netlink/af_netlink.c:340) 
[ 40.850617][ T479] ? 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) 
[ 40.850895][ T479] netlink_unicast (net/netlink/af_netlink.c:1320 net/netlink/af_netlink.c:1346) 
[ 40.851184][ T479] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1331) 
[ 40.851457][ T479] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 40.851781][ T479] netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 40.852060][ T479] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1815) 
[ 40.852338][ T479] ? __import_iovec (lib/iov_iter.c:1441 lib/iov_iter.c:1456) 
[ 40.852654][ T479] ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 40.852936][ T479] ? __pfx_____sys_sendmsg (net/socket.c:2560) 
[ 40.853208][ T479] ? __pfx_copy_msghdr_from_user (net/socket.c:2540) 
[ 40.853579][ T479] ___sys_sendmsg (net/socket.c:2670) 
[ 40.853853][ T479] ? kasan_record_aux_stack (mm/kasan/generic.c:548) 
[ 40.854127][ T479] ? __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) 
[ 40.854467][ T479] ? __pfx____sys_sendmsg (net/socket.c:2657) 
[ 40.854773][ T479] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 40.855060][ T479] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 40.855340][ T479] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 40.855640][ T479] ? __virt_addr_valid (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:953 ./include/linux/mmzone.h:2168 arch/x86/mm/physaddr.c:65) 
[ 40.855914][ T479] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 40.856196][ T479] __sys_sendmsg (net/socket.c:2700) 
[ 40.856467][ T479] ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3119) 
[ 40.856828][ T479] ? __pfx___sys_sendmsg (net/socket.c:2685) 
[ 40.857122][ T479] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 40.857398][ T479] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 40.857695][ T479] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[   40.858033][  T479] RIP: 0033:0x7f44d70251e7
[ 40.858316][ T479] 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)
[   40.859324][  T479] RSP: 002b:00007fff70216808 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[   40.859761][  T479] RAX: ffffffffffffffda RBX: 00007fff70216f30 RCX: 00007f44d70251e7
[   40.860174][  T479] RDX: 0000000000000000 RSI: 00007fff70216870 RDI: 0000000000000005
[   40.860608][  T479] RBP: 0000000000000004 R08: 0000000000000003 R09: 0000000000000078
[   40.861038][  T479] R10: 00007f44d6f22ee8 R11: 0000000000000246 R12: 0000000000000004
[   40.861451][  T479] R13: 00000000686e1fa5 R14: 0000000000499600 R15: 0000000000000000
| [   40.990293][  T480] ------------[ cut here ]------------
| [ 40.990621][ T480] WARNING: CPU: 1 PID: 480 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) 
| [   40.991179][  T480] Modules linked in: act_gact cls_flower sch_ingress ip6_gre ip6_tunnel tunnel6 gre 8021q vrf veth
| [   40.992415][  T480] Tainted: [W]=WARN
[   40.992648][  T480] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 40.993011][ T480] 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) 
[ 40.993318][ T480] 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
[   40.994355][  T480] RSP: 0018:ffffc90000957140 EFLAGS: 00010246
[   40.994730][  T480] RAX: 0000000000000000 RBX: ffff88800a969000 RCX: 0000000000000001
[   40.995167][  T480] RDX: 0000000000000000 RSI: ffffffff8969b941 RDI: ffffffff88e555e0
[   40.995621][  T480] RBP: ffffc90000957230 R08: ffff88800ab55000 R09: 0000000000000000
[   40.996081][  T480] R10: ffffc900009575c8 R11: ffffffff8a450668 R12: 1ffff9200012ae2c
[   40.996524][  T480] R13: 00000000000007d0 R14: ffffc90000957880 R15: ffff88800b86cae0
[   40.996939][  T480] FS:  00007f643a3ba800(0000) GS:ffff8880aab37000(0000) knlGS:0000000000000000
[   40.997424][  T480] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   40.997784][  T480] CR2: 00000000004e55b8 CR3: 000000000c1c7006 CR4: 0000000000772ef0
[   40.998197][  T480] PKRU: 55555554
[   40.998402][  T480] Call Trace:
[   40.998618][  T480]  <TASK>
[ 40.998758][ T480] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 40.999043][ T480] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 40.999315][ T480] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 40.999620][ T480] ? __pfx_validate_linkmsg (net/core/rtnetlink.c:2660) 
[ 40.999916][ T480] ? is_bpf_text_address (kernel/bpf/core.c:777) 
[ 41.000190][ T480] ? kernel_text_address (kernel/extable.c:97 kernel/extable.c:94) 
[ 41.000470][ T480] do_setlink.constprop.0 (net/core/rtnetlink.c:3106) 
[ 41.000792][ T480] ? __pfx_do_setlink.constprop.0 (net/core/rtnetlink.c:3021) 
[ 41.001179][ T480] ? rcu_read_lock_any_held (kernel/rcu/update.c:386 kernel/rcu/update.c:380) 
[ 41.001467][ T480] ? validate_chain (kernel/locking/lockdep.c:3804 kernel/locking/lockdep.c:3824 kernel/locking/lockdep.c:3879) 
[ 41.001796][ T480] ? __kernel_text_address (kernel/extable.c:79) 
[ 41.002092][ T480] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 41.002386][ T480] ? __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) 
[ 41.002685][ T480] ? __pfx___mutex_trylock_common (kernel/locking/mutex.c:88) 
[ 41.003045][ T480] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 41.003338][ T480] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 41.003635][ T480] ? trace_contention_end (./include/trace/events/lock.h:122 (discriminator 21)) 
[ 41.003937][ T480] ? __mutex_lock (./arch/x86/include/asm/preempt.h:104 kernel/locking/mutex.c:728 kernel/locking/mutex.c:747) 
[ 41.004216][ T480] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 41.004499][ T480] ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4056) 
[ 41.004786][ T480] ? __create_object (mm/kmemleak.c:771) 
[ 41.005061][ T480] ? __pfx___mutex_lock (kernel/locking/mutex.c:746) 
[ 41.005335][ T480] ? trace_cap_capable (./include/trace/events/capability.h:26 (discriminator 21)) 
[ 41.005651][ T480] ? _raw_spin_unlock_irqrestore (./arch/x86/include/asm/preempt.h:104 ./include/linux/spinlock_api_smp.h:152 kernel/locking/spinlock.c:194) 
[ 41.006011][ T480] ? __rtnl_newlink (net/core/rtnetlink.c:3907) 
[ 41.006294][ T480] rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4058) 
[ 41.006591][ T480] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 41.006878][ T480] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 41.007175][ T480] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 41.007474][ T480] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/rtnetlink.c:6944) 
[ 41.007793][ T480] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 41.008121][ T480] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 41.008412][ T480] rtnetlink_rcv_msg (net/core/rtnetlink.c:6946) 
[ 41.008716][ T480] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 41.009013][ T480] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 41.009311][ T480] netlink_rcv_skb (net/netlink/af_netlink.c:2551) 
[ 41.009608][ T480] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 41.009902][ T480] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2528) 
[ 41.010211][ T480] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/netlink/af_netlink.c:340) 
[ 41.010498][ T480] ? 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) 
[ 41.010802][ T480] netlink_unicast (net/netlink/af_netlink.c:1320 net/netlink/af_netlink.c:1346) 
[ 41.011106][ T480] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1331) 
[ 41.011399][ T480] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 41.011726][ T480] netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 41.012048][ T480] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1815) 
[ 41.012351][ T480] ? __import_iovec (lib/iov_iter.c:1441 lib/iov_iter.c:1456) 
[ 41.012661][ T480] ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 41.012956][ T480] ? __pfx_____sys_sendmsg (net/socket.c:2560) 
[ 41.013244][ T480] ? __pfx_copy_msghdr_from_user (net/socket.c:2540) 
[ 41.013624][ T480] ___sys_sendmsg (net/socket.c:2670) 
[ 41.013911][ T480] ? kasan_record_aux_stack (mm/kasan/generic.c:548) 
[ 41.014204][ T480] ? __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) 
[ 41.014580][ T480] ? __pfx____sys_sendmsg (net/socket.c:2657) 
[ 41.014873][ T480] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 41.015169][ T480] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 41.015464][ T480] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 41.015778][ T480] ? __virt_addr_valid (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:953 ./include/linux/mmzone.h:2168 arch/x86/mm/physaddr.c:65) 
[ 41.016093][ T480] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 41.016395][ T480] __sys_sendmsg (net/socket.c:2700) 
[ 41.016705][ T480] ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3119) 
[ 41.017067][ T480] ? __pfx___sys_sendmsg (net/socket.c:2685) 
[ 41.017369][ T480] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 41.017670][ T480] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 41.017962][ T480] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[   41.018324][  T480] RIP: 0033:0x7f643a5871e7
[ 41.018639][ T480] 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)
[   41.019735][  T480] RSP: 002b:00007ffca2525e88 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[   41.020173][  T480] RAX: ffffffffffffffda RBX: 00007ffca25265b0 RCX: 00007f643a5871e7
[   41.020618][  T480] RDX: 0000000000000000 RSI: 00007ffca2525ef0 RDI: 0000000000000005
[   41.021068][  T480] RBP: 0000000000000004 R08: 0000000000000003 R09: 0000000000000078
[   41.021522][  T480] R10: 00007f643a484ee8 R11: 0000000000000246 R12: 0000000000000004
[   41.021955][  T480] R13: 00000000686e1fa5 R14: 0000000000499600 R15: 0000000000000000
| [   41.135183][  T481] ------------[ cut here ]------------
| [ 41.135678][ T481] WARNING: CPU: 2 PID: 481 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) 
| [   41.136242][  T481] Modules linked in: act_gact cls_flower sch_ingress ip6_gre ip6_tunnel tunnel6 gre 8021q vrf veth
| [   41.137411][  T481] Tainted: [W]=WARN
[   41.137641][  T481] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 41.137998][ T481] 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) 
[ 41.138293][ T481] 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
[   41.139292][  T481] RSP: 0018:ffffc90000967140 EFLAGS: 00010246
[   41.139665][  T481] RAX: 0000000000000000 RBX: ffff8880026a9000 RCX: 0000000000000001
[   41.140089][  T481] RDX: 0000000000000000 RSI: ffffffff8969b941 RDI: ffffffff88e555e0
[   41.140520][  T481] RBP: ffffc90000967230 R08: ffff88800a5f5000 R09: 0000000000000000
[   41.140951][  T481] R10: ffffc900009675c8 R11: ffffffff8a450668 R12: 1ffff9200012ce2c
[   41.141388][  T481] R13: 00000000000007d0 R14: ffffc90000967880 R15: ffff88800b86c060
[   41.141821][  T481] FS:  00007fb155909800(0000) GS:ffff8880aabb7000(0000) knlGS:0000000000000000
[   41.142315][  T481] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   41.142684][  T481] CR2: 00000000004e5ac8 CR3: 0000000004d6f003 CR4: 0000000000772ef0
[   41.143111][  T481] PKRU: 55555554
[   41.143331][  T481] Call Trace:
[   41.143562][  T481]  <TASK>
[ 41.143716][ T481] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 41.144011][ T481] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 41.144295][ T481] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 41.144599][ T481] ? __pfx_validate_linkmsg (net/core/rtnetlink.c:2660) 
[ 41.144892][ T481] ? is_bpf_text_address (kernel/bpf/core.c:777) 
[ 41.145184][ T481] ? kernel_text_address (kernel/extable.c:97 kernel/extable.c:94) 
[ 41.145475][ T481] do_setlink.constprop.0 (net/core/rtnetlink.c:3106) 
[ 41.145781][ T481] ? __pfx_do_setlink.constprop.0 (net/core/rtnetlink.c:3021) 
[ 41.146145][ T481] ? rcu_read_lock_any_held (kernel/rcu/update.c:386 kernel/rcu/update.c:380) 
[ 41.146435][ T481] ? validate_chain (kernel/locking/lockdep.c:3804 kernel/locking/lockdep.c:3824 kernel/locking/lockdep.c:3879) 
[ 41.146737][ T481] ? __kernel_text_address (kernel/extable.c:79) 
[ 41.147031][ T481] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 41.147321][ T481] ? __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) 
[ 41.147619][ T481] ? __pfx___mutex_trylock_common (kernel/locking/mutex.c:88) 
[ 41.147976][ T481] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 41.148265][ T481] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 41.148567][ T481] ? trace_contention_end (./include/trace/events/lock.h:122 (discriminator 21)) 
[ 41.149069][ T481] ? __mutex_lock (./arch/x86/include/asm/preempt.h:104 kernel/locking/mutex.c:728 kernel/locking/mutex.c:747) 
[ 41.149362][ T481] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 41.149663][ T481] ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4056) 
[ 41.149950][ T481] ? __create_object (mm/kmemleak.c:771) 
[ 41.150239][ T481] ? __pfx___mutex_lock (kernel/locking/mutex.c:746) 
[ 41.150542][ T481] ? trace_cap_capable (./include/trace/events/capability.h:26 (discriminator 21)) 
[ 41.150833][ T481] ? _raw_spin_unlock_irqrestore (./arch/x86/include/asm/preempt.h:104 ./include/linux/spinlock_api_smp.h:152 kernel/locking/spinlock.c:194) 
[ 41.151198][ T481] ? __rtnl_newlink (net/core/rtnetlink.c:3907) 
[ 41.151500][ T481] rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4058) 
[ 41.151807][ T481] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 41.152094][ T481] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 41.152387][ T481] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 41.152681][ T481] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/rtnetlink.c:6944) 
[ 41.152968][ T481] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 41.153255][ T481] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 41.153551][ T481] rtnetlink_rcv_msg (net/core/rtnetlink.c:6946) 
[ 41.153847][ T481] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 41.154139][ T481] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 41.154432][ T481] netlink_rcv_skb (net/netlink/af_netlink.c:2551) 
[ 41.154735][ T481] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 41.155023][ T481] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2528) 
[ 41.155321][ T481] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/netlink/af_netlink.c:340) 
[ 41.155618][ T481] ? 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) 
[ 41.155918][ T481] netlink_unicast (net/netlink/af_netlink.c:1320 net/netlink/af_netlink.c:1346) 
[ 41.156208][ T481] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1331) 
[ 41.156495][ T481] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 41.156799][ T481] netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 41.157089][ T481] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1815) 
[ 41.157378][ T481] ? __import_iovec (lib/iov_iter.c:1441 lib/iov_iter.c:1456) 
[ 41.157682][ T481] ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 41.157982][ T481] ? __pfx_____sys_sendmsg (net/socket.c:2560) 
[ 41.158268][ T481] ? __pfx_copy_msghdr_from_user (net/socket.c:2540) 
[ 41.158648][ T481] ___sys_sendmsg (net/socket.c:2670) 
[ 41.158932][ T481] ? kasan_record_aux_stack (mm/kasan/generic.c:548) 
[ 41.159219][ T481] ? __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) 
[ 41.159579][ T481] ? __pfx____sys_sendmsg (net/socket.c:2657) 
[ 41.159871][ T481] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 41.160163][ T481] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 41.160454][ T481] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 41.160748][ T481] ? __virt_addr_valid (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:953 ./include/linux/mmzone.h:2168 arch/x86/mm/physaddr.c:65) 
[ 41.161040][ T481] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 41.161337][ T481] __sys_sendmsg (net/socket.c:2700) 
[ 41.161635][ T481] ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3119) 
[ 41.161987][ T481] ? __pfx___sys_sendmsg (net/socket.c:2685) 
[ 41.162293][ T481] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 41.162596][ T481] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 41.162889][ T481] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[   41.163242][  T481] RIP: 0033:0x7fb155ad61e7
[ 41.163549][ T481] 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)
[   41.164556][  T481] RSP: 002b:00007ffd7256aa18 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[   41.164985][  T481] RAX: ffffffffffffffda RBX: 00007ffd7256b140 RCX: 00007fb155ad61e7
[   41.165407][  T481] RDX: 0000000000000000 RSI: 00007ffd7256aa80 RDI: 0000000000000005
[   41.165845][  T481] RBP: 0000000000000004 R08: 0000000000000003 R09: 0000000000000078
[   41.166270][  T481] R10: 00007fb1559d3ee8 R11: 0000000000000246 R12: 0000000000000004
[   41.166704][  T481] R13: 00000000686e1fa5 R14: 0000000000499600 R15: 0000000000000000
| [   41.309097][  T482] ------------[ cut here ]------------
| [ 41.309439][ T482] WARNING: CPU: 1 PID: 482 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) 
| [   41.310036][  T482] Modules linked in: act_gact cls_flower sch_ingress ip6_gre ip6_tunnel tunnel6 gre 8021q vrf veth
| [   41.311288][  T482] Tainted: [W]=WARN
[   41.311541][  T482] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 41.311998][ T482] 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) 
[ 41.312306][ T482] 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
[   41.313359][  T482] RSP: 0018:ffffc90000977140 EFLAGS: 00010246
[   41.313742][  T482] RAX: 0000000000000000 RBX: ffff88800549c000 RCX: 0000000000000001
[   41.314177][  T482] RDX: 0000000000000000 RSI: ffffffff8969b941 RDI: ffffffff88e555e0
[   41.314638][  T482] RBP: ffffc90000977230 R08: ffff88800b97a000 R09: 0000000000000000
[   41.315096][  T482] R10: ffffc900009775c8 R11: ffffffff8a450668 R12: 1ffff9200012ee2c
[   41.315535][  T482] R13: 00000000000007d0 R14: ffffc90000977880 R15: ffff88800b86f4e0
[   41.315966][  T482] FS:  00007f2478d3e800(0000) GS:ffff8880aab37000(0000) knlGS:0000000000000000
[   41.316476][  T482] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   41.316849][  T482] CR2: 00000000004e5ac0 CR3: 000000000a6e0001 CR4: 0000000000772ef0
[   41.317285][  T482] PKRU: 55555554
[   41.317514][  T482] Call Trace:
[   41.317733][  T482]  <TASK>
[ 41.317882][ T482] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 41.318176][ T482] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 41.318470][ T482] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 41.318790][ T482] ? __pfx_validate_linkmsg (net/core/rtnetlink.c:2660) 
[ 41.319105][ T482] ? is_bpf_text_address (kernel/bpf/core.c:777) 
[ 41.319396][ T482] ? kernel_text_address (kernel/extable.c:97 kernel/extable.c:94) 
[ 41.319699][ T482] do_setlink.constprop.0 (net/core/rtnetlink.c:3106) 
[ 41.319997][ T482] ? __pfx_do_setlink.constprop.0 (net/core/rtnetlink.c:3021) 
[ 41.320363][ T482] ? rcu_read_lock_any_held (kernel/rcu/update.c:386 kernel/rcu/update.c:380) 
[ 41.320666][ T482] ? validate_chain (kernel/locking/lockdep.c:3804 kernel/locking/lockdep.c:3824 kernel/locking/lockdep.c:3879) 
[ 41.320955][ T482] ? __kernel_text_address (kernel/extable.c:79) 
[ 41.321259][ T482] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 41.321560][ T482] ? __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) 
[ 41.321850][ T482] ? __pfx___mutex_trylock_common (kernel/locking/mutex.c:88) 
[ 41.322206][ T482] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 41.322498][ T482] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 41.322842][ T482] ? trace_contention_end (./include/trace/events/lock.h:122 (discriminator 21)) 
[ 41.323131][ T482] ? __mutex_lock (./arch/x86/include/asm/preempt.h:104 kernel/locking/mutex.c:728 kernel/locking/mutex.c:747) 
[ 41.323423][ T482] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 41.323723][ T482] ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4056) 
[ 41.324012][ T482] ? __create_object (mm/kmemleak.c:771) 
[ 41.324305][ T482] ? __pfx___mutex_lock (kernel/locking/mutex.c:746) 
[ 41.324604][ T482] ? trace_cap_capable (./include/trace/events/capability.h:26 (discriminator 21)) 
[ 41.324884][ T482] ? _raw_spin_unlock_irqrestore (./arch/x86/include/asm/preempt.h:104 ./include/linux/spinlock_api_smp.h:152 kernel/locking/spinlock.c:194) 
[ 41.325225][ T482] ? __rtnl_newlink (net/core/rtnetlink.c:3907) 
[ 41.325522][ T482] rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4058) 
[ 41.325817][ T482] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 41.326106][ T482] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 41.326399][ T482] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 41.326720][ T482] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/rtnetlink.c:6944) 
[ 41.327015][ T482] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 41.327294][ T482] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 41.327579][ T482] rtnetlink_rcv_msg (net/core/rtnetlink.c:6946) 
[ 41.327855][ T482] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 41.328133][ T482] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 41.328409][ T482] netlink_rcv_skb (net/netlink/af_netlink.c:2551) 
[ 41.328695][ T482] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 41.328970][ T482] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2528) 
[ 41.329260][ T482] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/netlink/af_netlink.c:340) 
[ 41.329541][ T482] ? 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) 
[ 41.329817][ T482] netlink_unicast (net/netlink/af_netlink.c:1320 net/netlink/af_netlink.c:1346) 
[ 41.330095][ T482] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1331) 
[ 41.330365][ T482] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 41.330676][ T482] netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 41.330975][ T482] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1815) 
[ 41.331268][ T482] ? __import_iovec (lib/iov_iter.c:1441 lib/iov_iter.c:1456) 
[ 41.331565][ T482] ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 41.331863][ T482] ? __pfx_____sys_sendmsg (net/socket.c:2560) 
[ 41.332151][ T482] ? __pfx_copy_msghdr_from_user (net/socket.c:2540) 
[ 41.332535][ T482] ___sys_sendmsg (net/socket.c:2670) 
[ 41.332825][ T482] ? kasan_record_aux_stack (mm/kasan/generic.c:548) 
[ 41.333115][ T482] ? __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) 
[ 41.333482][ T482] ? __pfx____sys_sendmsg (net/socket.c:2657) 
[ 41.333787][ T482] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 41.334083][ T482] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 41.334379][ T482] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 41.334696][ T482] ? __virt_addr_valid (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:953 ./include/linux/mmzone.h:2168 arch/x86/mm/physaddr.c:65) 
[ 41.335013][ T482] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 41.335310][ T482] __sys_sendmsg (net/socket.c:2700) 
[ 41.335607][ T482] ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3119) 
[ 41.335974][ T482] ? __pfx___sys_sendmsg (net/socket.c:2685) 
[ 41.336278][ T482] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 41.336586][ T482] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 41.336871][ T482] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[   41.337208][  T482] RIP: 0033:0x7f2478f0b1e7
[ 41.337494][ T482] 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)
[   41.338489][  T482] RSP: 002b:00007fff9d9d4b48 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[   41.338957][  T482] RAX: ffffffffffffffda RBX: 00007fff9d9d5270 RCX: 00007f2478f0b1e7
[   41.339367][  T482] RDX: 0000000000000000 RSI: 00007fff9d9d4bb0 RDI: 0000000000000005
[   41.339789][  T482] RBP: 0000000000000004 R08: 0000000000000003 R09: 0000000000000078
[   41.340201][  T482] R10: 00007f2478e08ee8 R11: 0000000000000246 R12: 0000000000000004
[   41.340620][  T482] R13: 00000000686e1fa6 R14: 0000000000499600 R15: 0000000000000000
| [   41.446452][  T483] ------------[ cut here ]------------
| [ 41.446800][ T483] WARNING: CPU: 3 PID: 483 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) 
| [   41.447381][  T483] Modules linked in: act_gact cls_flower sch_ingress ip6_gre ip6_tunnel tunnel6 gre 8021q vrf veth
| [   41.448611][  T483] Tainted: [W]=WARN
[   41.448832][  T483] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 41.449190][ T483] 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) 
[ 41.449488][ T483] 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
[   41.452105][  T483] RSP: 0018:ffffc90000977140 EFLAGS: 00010246
[   41.452494][  T483] RAX: 0000000000000000 RBX: ffff888008a51000 RCX: 0000000000000001
[   41.453048][  T483] RDX: 0000000000000000 RSI: ffffffff8969b941 RDI: ffffffff88e555e0
[   41.453515][  T483] RBP: ffffc90000977230 R08: ffff88800bd2e800 R09: 0000000000000000
[   41.453948][  T483] R10: ffffc900009775c8 R11: ffffffff8a450668 R12: 1ffff9200012ee2c
[   41.454382][  T483] R13: 00000000000007d0 R14: ffffc90000977880 R15: ffff88800b86ea60
[   41.454836][  T483] FS:  00007f6216da7800(0000) GS:ffff8880aac37000(0000) knlGS:0000000000000000
[   41.455350][  T483] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   41.455737][  T483] CR2: 00000000004e73c8 CR3: 000000000e145003 CR4: 0000000000772ef0
[   41.456173][  T483] PKRU: 55555554
[   41.456390][  T483] Call Trace:
[   41.456619][  T483]  <TASK>
[ 41.456766][ T483] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 41.457060][ T483] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 41.457340][ T483] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 41.457648][ T483] ? __pfx_validate_linkmsg (net/core/rtnetlink.c:2660) 
[ 41.457936][ T483] ? is_bpf_text_address (kernel/bpf/core.c:777) 
[ 41.458227][ T483] ? kernel_text_address (kernel/extable.c:97 kernel/extable.c:94) 
[ 41.458527][ T483] do_setlink.constprop.0 (net/core/rtnetlink.c:3106) 
[ 41.458825][ T483] ? __pfx_do_setlink.constprop.0 (net/core/rtnetlink.c:3021) 
[ 41.459191][ T483] ? rcu_read_lock_any_held (kernel/rcu/update.c:386 kernel/rcu/update.c:380) 
[ 41.459485][ T483] ? validate_chain (kernel/locking/lockdep.c:3804 kernel/locking/lockdep.c:3824 kernel/locking/lockdep.c:3879) 
[ 41.459775][ T483] ? __kernel_text_address (kernel/extable.c:79) 
[ 41.460068][ T483] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 41.460361][ T483] ? __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) 
[ 41.460661][ T483] ? __pfx___mutex_trylock_common (kernel/locking/mutex.c:88) 
[ 41.461021][ T483] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 41.461327][ T483] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 41.461625][ T483] ? trace_contention_end (./include/trace/events/lock.h:122 (discriminator 21)) 
[ 41.461919][ T483] ? __mutex_lock (./arch/x86/include/asm/preempt.h:104 kernel/locking/mutex.c:728 kernel/locking/mutex.c:747) 
[ 41.462210][ T483] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 41.462499][ T483] ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4056) 
[ 41.462794][ T483] ? __create_object (mm/kmemleak.c:771) 
[ 41.463087][ T483] ? __pfx___mutex_lock (kernel/locking/mutex.c:746) 
[ 41.463377][ T483] ? trace_cap_capable (./include/trace/events/capability.h:26 (discriminator 21)) 
[ 41.463676][ T483] ? _raw_spin_unlock_irqrestore (./arch/x86/include/asm/preempt.h:104 ./include/linux/spinlock_api_smp.h:152 kernel/locking/spinlock.c:194) 
[ 41.464046][ T483] ? __rtnl_newlink (net/core/rtnetlink.c:3907) 
[ 41.464343][ T483] rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4058) 
[ 41.464648][ T483] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 41.464938][ T483] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 41.465235][ T483] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 41.465538][ T483] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/rtnetlink.c:6944) 
[ 41.465828][ T483] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 41.466118][ T483] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 41.466413][ T483] rtnetlink_rcv_msg (net/core/rtnetlink.c:6946) 
[ 41.466712][ T483] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 41.467003][ T483] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 41.467299][ T483] netlink_rcv_skb (net/netlink/af_netlink.c:2551) 
[ 41.467603][ T483] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 41.467894][ T483] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2528) 
[ 41.468195][ T483] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/netlink/af_netlink.c:340) 
[ 41.468516][ T483] ? 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) 
[ 41.468811][ T483] netlink_unicast (net/netlink/af_netlink.c:1320 net/netlink/af_netlink.c:1346) 
[ 41.469103][ T483] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1331) 
[ 41.469393][ T483] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 41.469697][ T483] netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 41.469991][ T483] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1815) 
[ 41.470284][ T483] ? __import_iovec (lib/iov_iter.c:1441 lib/iov_iter.c:1456) 
[ 41.470597][ T483] ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 41.470892][ T483] ? __pfx_____sys_sendmsg (net/socket.c:2560) 
[ 41.471189][ T483] ? __pfx_copy_msghdr_from_user (net/socket.c:2540) 
[ 41.471595][ T483] ___sys_sendmsg (net/socket.c:2670) 
[ 41.471884][ T483] ? kasan_record_aux_stack (mm/kasan/generic.c:548) 
[ 41.472168][ T483] ? __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) 
[ 41.472536][ T483] ? __pfx____sys_sendmsg (net/socket.c:2657) 
[ 41.472829][ T483] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 41.473120][ T483] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 41.473411][ T483] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 41.473722][ T483] ? __virt_addr_valid (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:953 ./include/linux/mmzone.h:2168 arch/x86/mm/physaddr.c:65) 
[ 41.474007][ T483] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 41.474304][ T483] __sys_sendmsg (net/socket.c:2700) 
[ 41.474601][ T483] ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3119) 
[ 41.474958][ T483] ? __pfx___sys_sendmsg (net/socket.c:2685) 
[ 41.475269][ T483] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 41.475592][ T483] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 41.475879][ T483] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[   41.476233][  T483] RIP: 0033:0x7f6216f741e7
[ 41.476541][ T483] 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)
[   41.477583][  T483] RSP: 002b:00007ffeaf8411a8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[   41.478021][  T483] RAX: ffffffffffffffda RBX: 00007ffeaf8418d0 RCX: 00007f6216f741e7
[   41.478452][  T483] RDX: 0000000000000000 RSI: 00007ffeaf841210 RDI: 0000000000000005
[   41.478894][  T483] RBP: 0000000000000004 R08: 0000000000000003 R09: 0000000000000078
[   41.479331][  T483] R10: 00007f6216e71ee8 R11: 0000000000000246 R12: 0000000000000004
[   41.479770][  T483] R13: 00000000686e1fa6 R14: 0000000000499600 R15: 0000000000000000
| [   41.621090][  T484] ------------[ cut here ]------------
| [ 41.621401][ T484] WARNING: CPU: 0 PID: 484 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) 
| [   41.621974][  T484] Modules linked in: act_gact cls_flower sch_ingress ip6_gre ip6_tunnel tunnel6 gre 8021q vrf veth
| [   41.624352][  T484] Tainted: [W]=WARN
[   41.624591][  T484] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 41.624930][ T484] 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) 
[ 41.625211][ T484] 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
[   41.626215][  T484] RSP: 0018:ffffc90000977140 EFLAGS: 00010246
[   41.626596][  T484] RAX: 0000000000000000 RBX: ffff888006074000 RCX: 0000000000000001
[   41.627004][  T484] RDX: 0000000000000000 RSI: ffffffff8969b941 RDI: ffffffff88e555e0
[   41.627412][  T484] RBP: ffffc90000977230 R08: ffff888002182000 R09: 0000000000000000
[   41.627841][  T484] R10: ffffc900009775c8 R11: ffffffff8a450668 R12: 1ffff9200012ee2c
[   41.628255][  T484] R13: 00000000000007d0 R14: ffffc90000977880 R15: ffff88800ec03860
[   41.628682][  T484] FS:  00007f057d8c1800(0000) GS:ffff8880aaab7000(0000) knlGS:0000000000000000
[   41.629162][  T484] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   41.629523][  T484] CR2: 00000000004e5ab8 CR3: 0000000009ae6006 CR4: 0000000000772ef0
[   41.629938][  T484] PKRU: 55555554
[   41.630154][  T484] Call Trace:
[   41.630358][  T484]  <TASK>
[ 41.630497][ T484] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 41.630799][ T484] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 41.631082][ T484] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 41.631363][ T484] ? __pfx_validate_linkmsg (net/core/rtnetlink.c:2660) 
[ 41.631660][ T484] ? is_bpf_text_address (kernel/bpf/core.c:777) 
[ 41.631937][ T484] ? kernel_text_address (kernel/extable.c:97 kernel/extable.c:94) 
[ 41.632226][ T484] do_setlink.constprop.0 (net/core/rtnetlink.c:3106) 
[ 41.632524][ T484] ? __pfx_do_setlink.constprop.0 (net/core/rtnetlink.c:3021) 
[ 41.632875][ T484] ? rcu_read_lock_any_held (kernel/rcu/update.c:386 kernel/rcu/update.c:380) 
[ 41.633150][ T484] ? validate_chain (kernel/locking/lockdep.c:3804 kernel/locking/lockdep.c:3824 kernel/locking/lockdep.c:3879) 
[ 41.633422][ T484] ? __kernel_text_address (kernel/extable.c:79) 
[ 41.633719][ T484] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 41.633996][ T484] ? __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) 
[ 41.634278][ T484] ? __pfx___mutex_trylock_common (kernel/locking/mutex.c:88) 
[ 41.634637][ T484] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 41.634912][ T484] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 41.635186][ T484] ? trace_contention_end (./include/trace/events/lock.h:122 (discriminator 21)) 
[ 41.635458][ T484] ? __mutex_lock (./arch/x86/include/asm/preempt.h:104 kernel/locking/mutex.c:728 kernel/locking/mutex.c:747) 
[ 41.635756][ T484] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 41.636032][ T484] ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4056) 
[ 41.636308][ T484] ? __create_object (mm/kmemleak.c:771) 
[ 41.636606][ T484] ? __pfx___mutex_lock (kernel/locking/mutex.c:746) 
[ 41.636880][ T484] ? trace_cap_capable (./include/trace/events/capability.h:26 (discriminator 21)) 
[ 41.637155][ T484] ? _raw_spin_unlock_irqrestore (./arch/x86/include/asm/preempt.h:104 ./include/linux/spinlock_api_smp.h:152 kernel/locking/spinlock.c:194) 
[ 41.637496][ T484] ? __rtnl_newlink (net/core/rtnetlink.c:3907) 
[ 41.637800][ T484] rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4058) 
[ 41.638080][ T484] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 41.638352][ T484] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 41.638663][ T484] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 41.638938][ T484] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/rtnetlink.c:6944) 
[ 41.639211][ T484] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 41.639487][ T484] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 41.639782][ T484] rtnetlink_rcv_msg (net/core/rtnetlink.c:6946) 
[ 41.640059][ T484] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 41.640335][ T484] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 41.640638][ T484] netlink_rcv_skb (net/netlink/af_netlink.c:2551) 
[ 41.640914][ T484] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 41.641202][ T484] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2528) 
[ 41.641485][ T484] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/netlink/af_netlink.c:340) 
[ 41.641780][ T484] ? 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) 
[ 41.642060][ T484] netlink_unicast (net/netlink/af_netlink.c:1320 net/netlink/af_netlink.c:1346) 
[ 41.642338][ T484] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1331) 
[ 41.642637][ T484] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 41.642916][ T484] netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 41.643201][ T484] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1815) 
[ 41.643477][ T484] ? __import_iovec (lib/iov_iter.c:1441 lib/iov_iter.c:1456) 
[ 41.643780][ T484] ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 41.644059][ T484] ? __pfx_____sys_sendmsg (net/socket.c:2560) 
[ 41.644331][ T484] ? __pfx_copy_msghdr_from_user (net/socket.c:2540) 
[ 41.644707][ T484] ___sys_sendmsg (net/socket.c:2670) 
[ 41.644981][ T484] ? kasan_record_aux_stack (mm/kasan/generic.c:548) 
[ 41.645253][ T484] ? __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) 
[ 41.645615][ T484] ? __pfx____sys_sendmsg (net/socket.c:2657) 
[ 41.645893][ T484] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 41.646174][ T484] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 41.646455][ T484] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 41.646755][ T484] ? __virt_addr_valid (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:953 ./include/linux/mmzone.h:2168 arch/x86/mm/physaddr.c:65) 
[ 41.647037][ T484] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 41.647317][ T484] __sys_sendmsg (net/socket.c:2700) 
[ 41.647608][ T484] ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3119) 
[ 41.647947][ T484] ? __pfx___sys_sendmsg (net/socket.c:2685) 
[ 41.648233][ T484] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 41.648548][ T484] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 41.648825][ T484] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[   41.649169][  T484] RIP: 0033:0x7f057da8e1e7
[ 41.649454][ T484] 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)
[   41.650451][  T484] RSP: 002b:00007ffc2b02aee8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[   41.650896][  T484] RAX: ffffffffffffffda RBX: 00007ffc2b02b610 RCX: 00007f057da8e1e7
[   41.651320][  T484] RDX: 0000000000000000 RSI: 00007ffc2b02af50 RDI: 0000000000000005
[   41.651748][  T484] RBP: 0000000000000004 R08: 0000000000000003 R09: 0000000000000078
[   41.652159][  T484] R10: 00007f057d98bee8 R11: 0000000000000246 R12: 0000000000000004
[   41.652591][  T484] R13: 00000000686e1fa6 R14: 0000000000499600 R15: 0000000000000000
| [   41.750241][  T485] ------------[ cut here ]------------
| [ 41.750577][ T485] WARNING: CPU: 3 PID: 485 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) 
| [   41.751132][  T485] Modules linked in: act_gact cls_flower sch_ingress ip6_gre ip6_tunnel tunnel6 gre 8021q vrf veth
| [   41.752261][  T485] Tainted: [W]=WARN
[   41.752467][  T485] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 41.752814][ T485] 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) 
[ 41.753096][ T485] 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
[   41.754079][  T485] RSP: 0018:ffffc90000977140 EFLAGS: 00010246
[   41.754431][  T485] RAX: 0000000000000000 RBX: ffff888008934000 RCX: 0000000000000001
[   41.754876][  T485] RDX: 0000000000000000 RSI: ffffffff8969b941 RDI: ffffffff88e555e0
[   41.755284][  T485] RBP: ffffc90000977230 R08: ffff88800ec18800 R09: 0000000000000000
[   41.755704][  T485] R10: ffffc900009775c8 R11: ffffffff8a450668 R12: 1ffff9200012ee2c
[   41.756112][  T485] R13: 00000000000007d0 R14: ffffc90000977880 R15: ffff88800ec02de0
[   41.756526][  T485] FS:  00007fd7fb29f800(0000) GS:ffff8880aac37000(0000) knlGS:0000000000000000
[   41.757002][  T485] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   41.757350][  T485] CR2: 00000000004e59c0 CR3: 000000000eeb2005 CR4: 0000000000772ef0
[   41.757770][  T485] PKRU: 55555554
[   41.757975][  T485] Call Trace:
[   41.758179][  T485]  <TASK>
[ 41.758319][ T485] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 41.758607][ T485] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 41.758881][ T485] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 41.759157][ T485] ? __pfx_validate_linkmsg (net/core/rtnetlink.c:2660) 
[ 41.759434][ T485] ? is_bpf_text_address (kernel/bpf/core.c:777) 
[ 41.759716][ T485] ? kernel_text_address (kernel/extable.c:97 kernel/extable.c:94) 
[ 41.759993][ T485] do_setlink.constprop.0 (net/core/rtnetlink.c:3106) 
[ 41.760270][ T485] ? __pfx_do_setlink.constprop.0 (net/core/rtnetlink.c:3021) 
[ 41.760645][ T485] ? rcu_read_lock_any_held (kernel/rcu/update.c:386 kernel/rcu/update.c:380) 
[ 41.760921][ T485] ? validate_chain (kernel/locking/lockdep.c:3804 kernel/locking/lockdep.c:3824 kernel/locking/lockdep.c:3879) 
[ 41.761204][ T485] ? __kernel_text_address (kernel/extable.c:79) 
[ 41.761482][ T485] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 41.761770][ T485] ? __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) 
[ 41.762046][ T485] ? __pfx___mutex_trylock_common (kernel/locking/mutex.c:88) 
[ 41.762384][ T485] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 41.762676][ T485] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 41.762947][ T485] ? trace_contention_end (./include/trace/events/lock.h:122 (discriminator 21)) 
[ 41.763222][ T485] ? __mutex_lock (./arch/x86/include/asm/preempt.h:104 kernel/locking/mutex.c:728 kernel/locking/mutex.c:747) 
[ 41.763498][ T485] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 41.763782][ T485] ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4056) 
[ 41.764052][ T485] ? __create_object (mm/kmemleak.c:771) 
[ 41.764325][ T485] ? __pfx___mutex_lock (kernel/locking/mutex.c:746) 
[ 41.764606][ T485] ? trace_cap_capable (./include/trace/events/capability.h:26 (discriminator 21)) 
[ 41.764882][ T485] ? _raw_spin_unlock_irqrestore (./arch/x86/include/asm/preempt.h:104 ./include/linux/spinlock_api_smp.h:152 kernel/locking/spinlock.c:194) 
[ 41.765221][ T485] ? __rtnl_newlink (net/core/rtnetlink.c:3907) 
[ 41.765515][ T485] rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4058) 
[ 41.765794][ T485] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 41.766067][ T485] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 41.766345][ T485] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 41.766633][ T485] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/rtnetlink.c:6944) 
[ 41.766905][ T485] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 41.767178][ T485] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 41.767450][ T485] rtnetlink_rcv_msg (net/core/rtnetlink.c:6946) 
[ 41.767742][ T485] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 41.768021][ T485] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 41.768298][ T485] netlink_rcv_skb (net/netlink/af_netlink.c:2551) 
[ 41.768582][ T485] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 41.768891][ T485] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2528) 
[ 41.769175][ T485] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/netlink/af_netlink.c:340) 
[ 41.769463][ T485] ? 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) 
[ 41.769759][ T485] netlink_unicast (net/netlink/af_netlink.c:1320 net/netlink/af_netlink.c:1346) 
[ 41.770039][ T485] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1331) 
[ 41.770310][ T485] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 41.770608][ T485] netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 41.770901][ T485] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1815) 
[ 41.771234][ T485] ? __import_iovec (lib/iov_iter.c:1441 lib/iov_iter.c:1456) 
[ 41.771547][ T485] ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 41.771848][ T485] ? __pfx_____sys_sendmsg (net/socket.c:2560) 
[ 41.772137][ T485] ? __pfx_copy_msghdr_from_user (net/socket.c:2540) 
[ 41.772522][ T485] ___sys_sendmsg (net/socket.c:2670) 
[ 41.772811][ T485] ? kasan_record_aux_stack (mm/kasan/generic.c:548) 
[ 41.773103][ T485] ? __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) 
[ 41.773468][ T485] ? __pfx____sys_sendmsg (net/socket.c:2657) 
[ 41.773771][ T485] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 41.774073][ T485] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 41.774370][ T485] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 41.774673][ T485] ? __virt_addr_valid (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:953 ./include/linux/mmzone.h:2168 arch/x86/mm/physaddr.c:65) 
[ 41.774960][ T485] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 41.775256][ T485] __sys_sendmsg (net/socket.c:2700) 
[ 41.775556][ T485] ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3119) 
[ 41.775916][ T485] ? __pfx___sys_sendmsg (net/socket.c:2685) 
[ 41.776221][ T485] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 41.776521][ T485] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 41.776815][ T485] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[   41.777172][  T485] RIP: 0033:0x7fd7fb46c1e7
[ 41.777470][ T485] 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)
[   41.778515][  T485] RSP: 002b:00007ffc50e3b428 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[   41.778955][  T485] RAX: ffffffffffffffda RBX: 00007ffc50e3bb50 RCX: 00007fd7fb46c1e7
[   41.779390][  T485] RDX: 0000000000000000 RSI: 00007ffc50e3b490 RDI: 0000000000000005
[   41.779830][  T485] RBP: 0000000000000004 R08: 0000000000000003 R09: 0000000000000078
[   41.780269][  T485] R10: 00007fd7fb369ee8 R11: 0000000000000246 R12: 0000000000000004


Finger prints:
netif_set_mtu_ext:rtnl_newlink:rtnetlink_rcv_msg:netlink_rcv_skb:netlink_unicast