======================================
| xx__-> [   17.325125][  T253] tun: Universal TUN/TAP device driver, 1.6
| [   21.892163][  T284] ------------[ cut here ]------------
| [ 21.892610][ T284] WARNING: CPU: 0 PID: 284 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) 
| [   21.893162][  T284] Modules linked in: xt_conntrack nft_compat nf_tables nf_conntrack nf_defrag_ipv6 nf_defrag_ipv4 tun
[   21.894296][  T284] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 21.894636][ T284] 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) 
[ 21.894920][ T284] Code: 00 00 8b 05 87 1c 38 02 85 c0 0f 84 52 fe ff ff 48 8d bb a0 0c 00 00 be ff ff ff ff e8 ca d1 79 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 87 1c 38 02    	mov    0x2381c87(%rip),%eax        # 0x2381c8f
   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 ca d1 79 00       	call   0x79d1eb
  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
[   21.895911][  T284] RSP: 0018:ffffc90000627930 EFLAGS: 00010246
[   21.896267][  T284] RAX: 0000000000000000 RBX: ffff88800bc7c000 RCX: 0000000000000001
[   21.896678][  T284] RDX: 0000000000000000 RSI: ffffffffac49f52e RDI: ffffffffabc5a5a0
[   21.897086][  T284] RBP: ffffc90000627a18 R08: ffff88800bc7c008 R09: 0000000000000000
[   21.897507][  T284] R10: ffffc90000627a48 R11: ffffffffad259728 R12: 1ffff920000c4f2a
[   21.897922][  T284] R13: 00000000000005f0 R14: ffffc90000627a48 R15: ffffc90000627d40
[   21.898536][  T284] FS:  00007fb6b9a34740(0000) GS:ffff888087ca7000(0000) knlGS:0000000000000000
[   21.899017][  T284] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   21.899368][  T284] CR2: 000055e4fe33a5e6 CR3: 0000000002af1002 CR4: 0000000000772ef0
[   21.899789][  T284] PKRU: 55555554
[   21.899995][  T284] Call Trace:
[   21.900200][  T284]  <TASK>
[ 21.900352][ T284] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 21.900628][ T284] ? rcu_read_lock_any_held (kernel/rcu/update.c:386 kernel/rcu/update.c:380) 
[ 21.900900][ T284] ? validate_chain (kernel/locking/lockdep.c:3804 kernel/locking/lockdep.c:3824 kernel/locking/lockdep.c:3879) 
[ 21.901204][ T284] ? rcu_read_lock_any_held (kernel/rcu/update.c:386 kernel/rcu/update.c:380) 
[ 21.901488][ T284] ? validate_chain (kernel/locking/lockdep.c:3804 kernel/locking/lockdep.c:3824 kernel/locking/lockdep.c:3879) 
[ 21.901767][ T284] netif_set_mtu (net/core/dev.c:9652) 
[ 21.902043][ T284] ? __pfx_netif_set_mtu (net/core/dev.c:9647) 
[ 21.902331][ T284] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 21.902606][ T284] dev_set_mtu (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:47 net/core/dev_api.c:249) 
[ 21.902812][ T284] dev_ifsioc (net/core/dev_ioctl.c:572) 
[ 21.903083][ T284] ? __pfx_dev_ifsioc (net/core/dev_ioctl.c:553) 
[ 21.903361][ T284] ? __pfx___mutex_lock (kernel/locking/mutex.c:746) 
[ 21.903635][ T284] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 21.903913][ T284] ? dev_load (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/dev_ioctl.c:678) 
[ 21.904115][ T284] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 21.904413][ T284] dev_ioctl (net/core/dev_ioctl.c:824) 
[ 21.904647][ T284] sock_do_ioctl (net/socket.c:1252) 
[ 21.904923][ T284] ? __pfx_sock_do_ioctl (net/socket.c:1230) 
[ 21.905192][ T284] ? __pmd_alloc (./arch/x86/include/asm/bitops.h:206 ./arch/x86/include/asm/bitops.h:238 ./include/asm-generic/bitops/instrumented-non-atomic.h:142 ./include/linux/mm.h:976 ./include/linux/mm.h:2879 ./include/linux/mm.h:2977 ./include/asm-generic/pgalloc.h:160 mm/memory.c:6477) 
[ 21.905472][ T284] ? lock_vma_under_rcu (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 mm/mmap_lock.c:171) 
[ 21.905742][ T284] ? __lock_release (kernel/locking/lockdep.c:5585) 
[ 21.906031][ T284] sock_ioctl (net/socket.c:1362) 
[ 21.906245][ T284] ? __pfx_sock_ioctl (net/socket.c:1266) 
[ 21.906515][ T284] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 21.906784][ T284] ? exc_page_fault (./arch/x86/include/asm/irqflags.h:26 ./arch/x86/include/asm/irqflags.h:109 ./arch/x86/include/asm/irqflags.h:151 arch/x86/mm/fault.c:1484 arch/x86/mm/fault.c:1532) 
[ 21.907050][ T284] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 21.907331][ T284] ? exc_page_fault (./arch/x86/include/asm/irqflags.h:26 ./arch/x86/include/asm/irqflags.h:109 ./arch/x86/include/asm/irqflags.h:151 arch/x86/mm/fault.c:1484 arch/x86/mm/fault.c:1532) 
[ 21.907608][ T284] __x64_sys_ioctl (fs/ioctl.c:51 fs/ioctl.c:907 fs/ioctl.c:893 fs/ioctl.c:893) 
[ 21.907883][ T284] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 21.908161][ T284] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[   21.908504][  T284] RIP: 0033:0x7fb6b9b3ae4b
[ 21.908790][ T284] Code: ff ff ff 85 c0 79 9b 49 c7 c4 ff ff ff ff 5b 5d 4c 89 e0 41 5c c3 66 0f 1f 84 00 00 00 00 00 f3 0f 1e fa b8 10 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d 7d 4f 0f 00 f7 d8 64 89 01 48
All code
========
   0:	ff                   	(bad)
   1:	ff                   	(bad)
   2:	ff 85 c0 79 9b 49    	incl   0x499b79c0(%rbp)
   8:	c7 c4 ff ff ff ff    	mov    $0xffffffff,%esp
   e:	5b                   	pop    %rbx
   f:	5d                   	pop    %rbp
  10:	4c 89 e0             	mov    %r12,%rax
  13:	41 5c                	pop    %r12
  15:	c3                   	ret
  16:	66 0f 1f 84 00 00 00 	nopw   0x0(%rax,%rax,1)
  1d:	00 00 
  1f:	f3 0f 1e fa          	endbr64
  23:	b8 10 00 00 00       	mov    $0x10,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax		<-- trapping instruction
  30:	73 01                	jae    0x33
  32:	c3                   	ret
  33:	48 8b 0d 7d 4f 0f 00 	mov    0xf4f7d(%rip),%rcx        # 0xf4fb7
  3a:	f7 d8                	neg    %eax
  3c:	64 89 01             	mov    %eax,%fs:(%rcx)
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax
   6:	73 01                	jae    0x9
   8:	c3                   	ret
   9:	48 8b 0d 7d 4f 0f 00 	mov    0xf4f7d(%rip),%rcx        # 0xf4f8d
  10:	f7 d8                	neg    %eax
  12:	64 89 01             	mov    %eax,%fs:(%rcx)
  15:	48                   	rex.W
[   21.909774][  T284] RSP: 002b:00007ffc13133038 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
[   21.910191][  T284] RAX: ffffffffffffffda RBX: 00007ffc13133398 RCX: 00007fb6b9b3ae4b
[   21.910610][  T284] RDX: 00007ffc13133090 RSI: 0000000000008922 RDI: 0000000000000008
[   21.911017][  T284] RBP: 00007ffc131333a8 R08: 1999999999999999 R09: 0000000000000000
[   21.911438][  T284] R10: 00007fb6b9bd5ac0 R11: 0000000000000246 R12: 00007ffc13133981
[   21.911852][  T284] R13: 000055e4fe3298f0 R14: 00007ffc13133090 R15: 000055e4fe3348a2
| [   31.347350][  T345] ------------[ cut here ]------------
| [ 31.347703][ T345] WARNING: CPU: 3 PID: 345 at ./include/net/netdev_lock.h:17 netif_set_mtu_ext (./include/net/netdev_lock.h:17 ./include/net/netdev_lock.h:15 ./include/net/netdev_lock.h:25 net/core/dev.c:9610) 
| [   31.348308][  T345] Modules linked in: nf_conntrack_netlink xt_conntrack nft_compat nf_tables nf_conntrack nf_defrag_ipv6 nf_defrag_ipv4 tun
| [   31.349639][  T345] Tainted: [W]=WARN
[   31.349867][  T345] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 31.350251][ T345] RIP: 0010:netif_set_mtu_ext (./include/net/netdev_lock.h:17 ./include/net/netdev_lock.h:15 ./include/net/netdev_lock.h:25 net/core/dev.c:9610) 
[ 31.350552][ T345] Code: 00 00 8b 05 87 1c 38 02 85 c0 0f 84 52 fe ff ff 48 8d bb a0 0c 00 00 be ff ff ff ff e8 ca d1 79 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 87 1c 38 02    	mov    0x2381c87(%rip),%eax        # 0x2381c8f
   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 ca d1 79 00       	call   0x79d1eb
  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
[   31.351607][  T345] RSP: 0018:ffffc900005a7930 EFLAGS: 00010246
[   31.351974][  T345] RAX: 0000000000000000 RBX: ffff888015b08000 RCX: 0000000000000001
[   31.352414][  T345] RDX: 0000000000000000 RSI: ffffffffac49f52e RDI: ffffffffabc5a5a0
[   31.352848][  T345] RBP: ffffc900005a7a18 R08: ffff888015b08008 R09: 0000000000000000
[   31.353284][  T345] R10: ffffc900005a7a48 R11: ffffffffad259728 R12: 1ffff920000b4f2a
[   31.353713][  T345] R13: 00000000000005f0 R14: ffffc900005a7a48 R15: ffffc900005a7d40
[   31.354146][  T345] FS:  00007f1349f3d740(0000) GS:ffff888087e27000(0000) knlGS:0000000000000000
[   31.354675][  T345] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   31.355036][  T345] CR2: 0000564247ef95e6 CR3: 000000000babf004 CR4: 0000000000772ef0
[   31.355480][  T345] PKRU: 55555554
[   31.355699][  T345] Call Trace:
[   31.355912][  T345]  <TASK>
[ 31.356061][ T345] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 31.356360][ T345] ? rcu_read_lock_any_held (kernel/rcu/update.c:386 kernel/rcu/update.c:380) 
[ 31.356666][ T345] ? validate_chain (kernel/locking/lockdep.c:3804 kernel/locking/lockdep.c:3824 kernel/locking/lockdep.c:3879) 
[ 31.356962][ T345] ? rcu_read_lock_any_held (kernel/rcu/update.c:386 kernel/rcu/update.c:380) 
[ 31.357256][ T345] ? validate_chain (kernel/locking/lockdep.c:3804 kernel/locking/lockdep.c:3824 kernel/locking/lockdep.c:3879) 
[ 31.357543][ T345] netif_set_mtu (net/core/dev.c:9652) 
[ 31.357833][ T345] ? __pfx_netif_set_mtu (net/core/dev.c:9647) 
[ 31.358128][ T345] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 31.358443][ T345] dev_set_mtu (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:47 net/core/dev_api.c:249) 
[ 31.358665][ T345] dev_ifsioc (net/core/dev_ioctl.c:572) 
[ 31.358957][ T345] ? __pfx_dev_ifsioc (net/core/dev_ioctl.c:553) 
[ 31.359251][ T345] ? __pfx___mutex_lock (kernel/locking/mutex.c:746) 
[ 31.359549][ T345] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 31.359839][ T345] ? dev_load (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/dev_ioctl.c:678) 
[ 31.360051][ T345] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 31.360360][ T345] dev_ioctl (net/core/dev_ioctl.c:824) 
[ 31.360583][ T345] sock_do_ioctl (net/socket.c:1252) 
[ 31.360883][ T345] ? __pfx_sock_do_ioctl (net/socket.c:1230) 
[ 31.361175][ T345] ? __pmd_alloc (./arch/x86/include/asm/bitops.h:206 ./arch/x86/include/asm/bitops.h:238 ./include/asm-generic/bitops/instrumented-non-atomic.h:142 ./include/linux/mm.h:976 ./include/linux/mm.h:2879 ./include/linux/mm.h:2977 ./include/asm-generic/pgalloc.h:160 mm/memory.c:6477) 
[ 31.361476][ T345] ? lock_vma_under_rcu (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 mm/mmap_lock.c:171) 
[ 31.361765][ T345] ? __lock_release (kernel/locking/lockdep.c:5585) 
[ 31.362063][ T345] sock_ioctl (net/socket.c:1362) 
[ 31.362290][ T345] ? __pfx_sock_ioctl (net/socket.c:1266) 
[ 31.362575][ T345] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 31.362865][ T345] ? exc_page_fault (./arch/x86/include/asm/irqflags.h:26 ./arch/x86/include/asm/irqflags.h:109 ./arch/x86/include/asm/irqflags.h:151 arch/x86/mm/fault.c:1484 arch/x86/mm/fault.c:1532) 
[ 31.363150][ T345] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 31.363459][ T345] ? exc_page_fault (./arch/x86/include/asm/irqflags.h:26 ./arch/x86/include/asm/irqflags.h:109 ./arch/x86/include/asm/irqflags.h:151 arch/x86/mm/fault.c:1484 arch/x86/mm/fault.c:1532) 
[ 31.363752][ T345] __x64_sys_ioctl (fs/ioctl.c:51 fs/ioctl.c:907 fs/ioctl.c:893 fs/ioctl.c:893) 
[ 31.364054][ T345] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 31.364365][ T345] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[   31.364729][  T345] RIP: 0033:0x7f134a043e4b
[ 31.365028][ T345] Code: ff ff ff 85 c0 79 9b 49 c7 c4 ff ff ff ff 5b 5d 4c 89 e0 41 5c c3 66 0f 1f 84 00 00 00 00 00 f3 0f 1e fa b8 10 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d 7d 4f 0f 00 f7 d8 64 89 01 48
All code
========
   0:	ff                   	(bad)
   1:	ff                   	(bad)
   2:	ff 85 c0 79 9b 49    	incl   0x499b79c0(%rbp)
   8:	c7 c4 ff ff ff ff    	mov    $0xffffffff,%esp
   e:	5b                   	pop    %rbx
   f:	5d                   	pop    %rbp
  10:	4c 89 e0             	mov    %r12,%rax
  13:	41 5c                	pop    %r12
  15:	c3                   	ret
  16:	66 0f 1f 84 00 00 00 	nopw   0x0(%rax,%rax,1)
  1d:	00 00 
  1f:	f3 0f 1e fa          	endbr64
  23:	b8 10 00 00 00       	mov    $0x10,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax		<-- trapping instruction
  30:	73 01                	jae    0x33
  32:	c3                   	ret
  33:	48 8b 0d 7d 4f 0f 00 	mov    0xf4f7d(%rip),%rcx        # 0xf4fb7
  3a:	f7 d8                	neg    %eax
  3c:	64 89 01             	mov    %eax,%fs:(%rcx)
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax
   6:	73 01                	jae    0x9
   8:	c3                   	ret
   9:	48 8b 0d 7d 4f 0f 00 	mov    0xf4f7d(%rip),%rcx        # 0xf4f8d
  10:	f7 d8                	neg    %eax
  12:	64 89 01             	mov    %eax,%fs:(%rcx)
  15:	48                   	rex.W
[   31.366060][  T345] RSP: 002b:00007ffcff8c52b8 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
[   31.366500][  T345] RAX: ffffffffffffffda RBX: 00007ffcff8c5618 RCX: 00007f134a043e4b
[   31.366929][  T345] RDX: 00007ffcff8c5310 RSI: 0000000000008922 RDI: 0000000000000008
[   31.367367][  T345] RBP: 00007ffcff8c5628 R08: 1999999999999999 R09: 0000000000000000
[   31.367796][  T345] R10: 00007f134a0deac0 R11: 0000000000000246 R12: 00007ffcff8c5981
[   31.368244][  T345] R13: 0000564247ee88f0 R14: 00007ffcff8c5310 R15: 0000564247ef38a2
| [   41.591361][  T420] ------------[ cut here ]------------
| [ 41.591841][ T420] WARNING: CPU: 0 PID: 420 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) 
| [   41.593447][  T420] Modules linked in: nf_conntrack_netlink xt_conntrack nft_compat nf_tables nf_conntrack nf_defrag_ipv6 nf_defrag_ipv4 tun
| [   41.595235][  T420] Tainted: [W]=WARN
[   41.595488][  T420] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 41.595919][ T420] 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) 
[ 41.596382][ T420] Code: 00 00 8b 05 87 1c 38 02 85 c0 0f 84 52 fe ff ff 48 8d bb a0 0c 00 00 be ff ff ff ff e8 ca d1 79 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 87 1c 38 02    	mov    0x2381c87(%rip),%eax        # 0x2381c8f
   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 ca d1 79 00       	call   0x79d1eb
  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
[   41.597852][  T420] RSP: 0018:ffffc90000a67930 EFLAGS: 00010246
[   41.598301][  T420] RAX: 0000000000000000 RBX: ffff888015a98000 RCX: 0000000000000001
[   41.598874][  T420] RDX: 0000000000000000 RSI: ffffffffac49f52e RDI: ffffffffabc5a5a0
[   41.599481][  T420] RBP: ffffc90000a67a18 R08: ffff888015a98008 R09: 0000000000000000
[   41.600016][  T420] R10: ffffc90000a67a48 R11: ffffffffad259728 R12: 1ffff9200014cf2a
[   41.600582][  T420] R13: 00000000000005f0 R14: ffffc90000a67a48 R15: ffffc90000a67d40
[   41.601099][  T420] FS:  00007f4ee9df2740(0000) GS:ffff888087ca7000(0000) knlGS:0000000000000000
[   41.601771][  T420] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   41.602175][  T420] CR2: 00005636ef3e85e6 CR3: 000000000c026001 CR4: 0000000000772ef0
[   41.602748][  T420] PKRU: 55555554
[   41.603072][  T420] Call Trace:
[   41.603389][  T420]  <TASK>
[ 41.603563][ T420] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 41.604012][ T420] ? rcu_read_lock_any_held (kernel/rcu/update.c:386 kernel/rcu/update.c:380) 
[ 41.604435][ T420] ? validate_chain (kernel/locking/lockdep.c:3804 kernel/locking/lockdep.c:3824 kernel/locking/lockdep.c:3879) 
[ 41.604865][ T420] ? rcu_read_lock_any_held (kernel/rcu/update.c:386 kernel/rcu/update.c:380) 
[ 41.605291][ T420] ? validate_chain (kernel/locking/lockdep.c:3804 kernel/locking/lockdep.c:3824 kernel/locking/lockdep.c:3879) 
[ 41.605633][ T420] netif_set_mtu (net/core/dev.c:9652) 
[ 41.606021][ T420] ? __pfx_netif_set_mtu (net/core/dev.c:9647) 
[ 41.606393][ T420] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 41.606769][ T420] dev_set_mtu (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:47 net/core/dev_api.c:249) 
[ 41.607088][ T420] dev_ifsioc (net/core/dev_ioctl.c:572) 
[ 41.607522][ T420] ? __pfx_dev_ifsioc (net/core/dev_ioctl.c:553) 
[ 41.607935][ T420] ? __pfx___mutex_lock (kernel/locking/mutex.c:746) 
[ 41.608289][ T420] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 41.608719][ T420] ? dev_load (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/dev_ioctl.c:678) 
[ 41.608989][ T420] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 41.609379][ T420] dev_ioctl (net/core/dev_ioctl.c:824) 
[ 41.609786][ T420] sock_do_ioctl (net/socket.c:1252) 
[ 41.610326][ T420] ? __pfx_sock_do_ioctl (net/socket.c:1230) 
[ 41.610736][ T420] ? __pmd_alloc (./arch/x86/include/asm/bitops.h:206 ./arch/x86/include/asm/bitops.h:238 ./include/asm-generic/bitops/instrumented-non-atomic.h:142 ./include/linux/mm.h:976 ./include/linux/mm.h:2879 ./include/linux/mm.h:2977 ./include/asm-generic/pgalloc.h:160 mm/memory.c:6477) 
[ 41.611099][ T420] ? lock_vma_under_rcu (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 mm/mmap_lock.c:171) 
[ 41.611525][ T420] ? __lock_release (kernel/locking/lockdep.c:5585) 
[ 41.611913][ T420] sock_ioctl (net/socket.c:1362) 
[ 41.612272][ T420] ? __pfx_sock_ioctl (net/socket.c:1266) 
[ 41.612655][ T420] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 41.613011][ T420] ? exc_page_fault (./arch/x86/include/asm/irqflags.h:26 ./arch/x86/include/asm/irqflags.h:109 ./arch/x86/include/asm/irqflags.h:151 arch/x86/mm/fault.c:1484 arch/x86/mm/fault.c:1532) 
[ 41.613452][ T420] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 41.613856][ T420] ? exc_page_fault (./arch/x86/include/asm/irqflags.h:26 ./arch/x86/include/asm/irqflags.h:109 ./arch/x86/include/asm/irqflags.h:151 arch/x86/mm/fault.c:1484 arch/x86/mm/fault.c:1532) 
[ 41.614278][ T420] __x64_sys_ioctl (fs/ioctl.c:51 fs/ioctl.c:907 fs/ioctl.c:893 fs/ioctl.c:893) 
[ 41.614641][ T420] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 41.615010][ T420] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[   41.615550][  T420] RIP: 0033:0x7f4ee9ef8e4b
[ 41.615929][ T420] Code: ff ff ff 85 c0 79 9b 49 c7 c4 ff ff ff ff 5b 5d 4c 89 e0 41 5c c3 66 0f 1f 84 00 00 00 00 00 f3 0f 1e fa b8 10 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d 7d 4f 0f 00 f7 d8 64 89 01 48
All code
========
   0:	ff                   	(bad)
   1:	ff                   	(bad)
   2:	ff 85 c0 79 9b 49    	incl   0x499b79c0(%rbp)
   8:	c7 c4 ff ff ff ff    	mov    $0xffffffff,%esp
   e:	5b                   	pop    %rbx
   f:	5d                   	pop    %rbp
  10:	4c 89 e0             	mov    %r12,%rax
  13:	41 5c                	pop    %r12
  15:	c3                   	ret
  16:	66 0f 1f 84 00 00 00 	nopw   0x0(%rax,%rax,1)
  1d:	00 00 
  1f:	f3 0f 1e fa          	endbr64
  23:	b8 10 00 00 00       	mov    $0x10,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax		<-- trapping instruction
  30:	73 01                	jae    0x33
  32:	c3                   	ret
  33:	48 8b 0d 7d 4f 0f 00 	mov    0xf4f7d(%rip),%rcx        # 0xf4fb7
  3a:	f7 d8                	neg    %eax
  3c:	64 89 01             	mov    %eax,%fs:(%rcx)
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax
   6:	73 01                	jae    0x9
   8:	c3                   	ret
   9:	48 8b 0d 7d 4f 0f 00 	mov    0xf4f7d(%rip),%rcx        # 0xf4f8d
  10:	f7 d8                	neg    %eax
  12:	64 89 01             	mov    %eax,%fs:(%rcx)
  15:	48                   	rex.W
[   41.617309][  T420] RSP: 002b:00007ffe1e115978 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
[   41.617853][  T420] RAX: ffffffffffffffda RBX: 00007ffe1e115cd8 RCX: 00007f4ee9ef8e4b
[   41.618448][  T420] RDX: 00007ffe1e1159d0 RSI: 0000000000008922 RDI: 0000000000000008
[   41.619036][  T420] RBP: 00007ffe1e115ce8 R08: 1999999999999999 R09: 0000000000000000
[   41.619615][  T420] R10: 00007f4ee9f93ac0 R11: 0000000000000246 R12: 00007ffe1e117981
[   41.620162][  T420] R13: 00005636ef3d78f0 R14: 00007ffe1e1159d0 R15: 00005636ef3e28a2
| [   52.367661][  T503] ------------[ cut here ]------------
| [ 52.368009][ T503] WARNING: CPU: 0 PID: 503 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) 
| [   52.368576][  T503] Modules linked in: nf_conntrack_netlink xt_conntrack nft_compat nf_tables nf_conntrack nf_defrag_ipv6 nf_defrag_ipv4 tun
| [   52.369865][  T503] Tainted: [W]=WARN
[   52.370080][  T503] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 52.370439][ T503] 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) 
[ 52.370725][ T503] Code: 00 00 8b 05 87 1c 38 02 85 c0 0f 84 52 fe ff ff 48 8d bb a0 0c 00 00 be ff ff ff ff e8 ca d1 79 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 87 1c 38 02    	mov    0x2381c87(%rip),%eax        # 0x2381c8f
   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 ca d1 79 00       	call   0x79d1eb
  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
[   52.371733][  T503] RSP: 0018:ffffc90000cd7930 EFLAGS: 00010246
[   52.372090][  T503] RAX: 0000000000000000 RBX: ffff888009170000 RCX: 0000000000000001
[   52.372510][  T503] RDX: 0000000000000000 RSI: ffffffffac49f52e RDI: ffffffffabc5a5a0
[   52.372921][  T503] RBP: ffffc90000cd7a18 R08: ffff888009170008 R09: 0000000000000000
[   52.373339][  T503] R10: ffffc90000cd7a48 R11: ffffffffad259728 R12: 1ffff9200019af2a
[   52.373757][  T503] R13: 00000000000005f0 R14: ffffc90000cd7a48 R15: ffffc90000cd7d40
[   52.374167][  T503] FS:  00007f21fbeba740(0000) GS:ffff888087ca7000(0000) knlGS:0000000000000000
[   52.374679][  T503] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   52.375025][  T503] CR2: 0000555a02d4e5e6 CR3: 0000000015bb6003 CR4: 0000000000772ef0
[   52.375455][  T503] PKRU: 55555554
[   52.375687][  T503] Call Trace:
[   52.375917][  T503]  <TASK>
[ 52.376066][ T503] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 52.376353][ T503] ? rcu_read_lock_any_held (kernel/rcu/update.c:386 kernel/rcu/update.c:380) 
[ 52.376633][ T503] ? validate_chain (kernel/locking/lockdep.c:3804 kernel/locking/lockdep.c:3824 kernel/locking/lockdep.c:3879) 
[ 52.376916][ T503] ? rcu_read_lock_any_held (kernel/rcu/update.c:386 kernel/rcu/update.c:380) 
[ 52.377185][ T503] ? validate_chain (kernel/locking/lockdep.c:3804 kernel/locking/lockdep.c:3824 kernel/locking/lockdep.c:3879) 
[ 52.377469][ T503] netif_set_mtu (net/core/dev.c:9652) 
[ 52.377754][ T503] ? __pfx_netif_set_mtu (net/core/dev.c:9647) 
[ 52.378039][ T503] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 52.378331][ T503] dev_set_mtu (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:47 net/core/dev_api.c:249) 
[ 52.378542][ T503] dev_ifsioc (net/core/dev_ioctl.c:572) 
[ 52.378818][ T503] ? __pfx_dev_ifsioc (net/core/dev_ioctl.c:553) 
[ 52.379091][ T503] ? __pfx___mutex_lock (kernel/locking/mutex.c:746) 
[ 52.379403][ T503] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 52.379689][ T503] ? dev_load (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/dev_ioctl.c:678) 
[ 52.379900][ T503] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 52.380182][ T503] dev_ioctl (net/core/dev_ioctl.c:824) 
[ 52.380402][ T503] sock_do_ioctl (net/socket.c:1252) 
[ 52.380687][ T503] ? __pfx_sock_do_ioctl (net/socket.c:1230) 
[ 52.380991][ T503] ? __pmd_alloc (./arch/x86/include/asm/bitops.h:206 ./arch/x86/include/asm/bitops.h:238 ./include/asm-generic/bitops/instrumented-non-atomic.h:142 ./include/linux/mm.h:976 ./include/linux/mm.h:2879 ./include/linux/mm.h:2977 ./include/asm-generic/pgalloc.h:160 mm/memory.c:6477) 
[ 52.381273][ T503] ? lock_vma_under_rcu (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 mm/mmap_lock.c:171) 
[ 52.381546][ T503] ? __lock_release (kernel/locking/lockdep.c:5585) 
[ 52.381832][ T503] sock_ioctl (net/socket.c:1362) 
[ 52.382060][ T503] ? __pfx_sock_ioctl (net/socket.c:1266) 
[ 52.382339][ T503] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 52.382612][ T503] ? exc_page_fault (./arch/x86/include/asm/irqflags.h:26 ./arch/x86/include/asm/irqflags.h:109 ./arch/x86/include/asm/irqflags.h:151 arch/x86/mm/fault.c:1484 arch/x86/mm/fault.c:1532) 
[ 52.382887][ T503] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 52.383163][ T503] ? exc_page_fault (./arch/x86/include/asm/irqflags.h:26 ./arch/x86/include/asm/irqflags.h:109 ./arch/x86/include/asm/irqflags.h:151 arch/x86/mm/fault.c:1484 arch/x86/mm/fault.c:1532) 
[ 52.383465][ T503] __x64_sys_ioctl (fs/ioctl.c:51 fs/ioctl.c:907 fs/ioctl.c:893 fs/ioctl.c:893) 
[ 52.383758][ T503] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 52.384041][ T503] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[   52.384414][  T503] RIP: 0033:0x7f21fbfc0e4b
[ 52.384704][ T503] Code: ff ff ff 85 c0 79 9b 49 c7 c4 ff ff ff ff 5b 5d 4c 89 e0 41 5c c3 66 0f 1f 84 00 00 00 00 00 f3 0f 1e fa b8 10 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d 7d 4f 0f 00 f7 d8 64 89 01 48
All code
========
   0:	ff                   	(bad)
   1:	ff                   	(bad)
   2:	ff 85 c0 79 9b 49    	incl   0x499b79c0(%rbp)
   8:	c7 c4 ff ff ff ff    	mov    $0xffffffff,%esp
   e:	5b                   	pop    %rbx
   f:	5d                   	pop    %rbp
  10:	4c 89 e0             	mov    %r12,%rax
  13:	41 5c                	pop    %r12
  15:	c3                   	ret
  16:	66 0f 1f 84 00 00 00 	nopw   0x0(%rax,%rax,1)
  1d:	00 00 
  1f:	f3 0f 1e fa          	endbr64
  23:	b8 10 00 00 00       	mov    $0x10,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax		<-- trapping instruction
  30:	73 01                	jae    0x33
  32:	c3                   	ret
  33:	48 8b 0d 7d 4f 0f 00 	mov    0xf4f7d(%rip),%rcx        # 0xf4fb7
  3a:	f7 d8                	neg    %eax
  3c:	64 89 01             	mov    %eax,%fs:(%rcx)
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax
   6:	73 01                	jae    0x9
   8:	c3                   	ret
   9:	48 8b 0d 7d 4f 0f 00 	mov    0xf4f7d(%rip),%rcx        # 0xf4f8d
  10:	f7 d8                	neg    %eax
  12:	64 89 01             	mov    %eax,%fs:(%rcx)
  15:	48                   	rex.W
[   52.385697][  T503] RSP: 002b:00007ffea1fd34e8 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
[   52.386114][  T503] RAX: ffffffffffffffda RBX: 00007ffea1fd3848 RCX: 00007f21fbfc0e4b
[   52.386541][  T503] RDX: 00007ffea1fd3540 RSI: 0000000000008922 RDI: 0000000000000008
[   52.386951][  T503] RBP: 00007ffea1fd3858 R08: 1999999999999999 R09: 0000000000000000
[   52.387383][  T503] R10: 00007f21fc05bac0 R11: 0000000000000246 R12: 00007ffea1fd4981
[   52.387796][  T503] R13: 0000555a02d3d8f0 R14: 00007ffea1fd3540 R15: 0000555a02d488a2
| [   63.337717][  T577] ------------[ cut here ]------------
| [ 63.338178][ T577] WARNING: CPU: 2 PID: 577 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) 
| [   63.338937][  T577] Modules linked in: nf_conntrack_netlink xt_conntrack nft_compat nf_tables nf_conntrack nf_defrag_ipv6 nf_defrag_ipv4 tun
| [   63.341420][  T577] Tainted: [W]=WARN
[   63.341762][  T577] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 63.342346][ T577] 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) 
[ 63.342807][ T577] Code: 00 00 8b 05 87 1c 38 02 85 c0 0f 84 52 fe ff ff 48 8d bb a0 0c 00 00 be ff ff ff ff e8 ca d1 79 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 87 1c 38 02    	mov    0x2381c87(%rip),%eax        # 0x2381c8f
   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 ca d1 79 00       	call   0x79d1eb
  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
[   63.344383][  T577] RSP: 0018:ffffc90000e17930 EFLAGS: 00010246
[   63.344965][  T577] RAX: 0000000000000000 RBX: ffff888009170000 RCX: 0000000000000001
[   63.345648][  T577] RDX: 0000000000000000 RSI: ffffffffac49f52e RDI: ffffffffabc5a5a0
[   63.346338][  T577] RBP: ffffc90000e17a18 R08: ffff888009170008 R09: 0000000000000000
[   63.347041][  T577] R10: ffffc90000e17a48 R11: ffffffffad259728 R12: 1ffff920001c2f2a
[   63.347719][  T577] R13: 00000000000005f0 R14: ffffc90000e17a48 R15: ffffc90000e17d40
[   63.348420][  T577] FS:  00007f00fe668740(0000) GS:ffff888087da7000(0000) knlGS:0000000000000000
[   63.349225][  T577] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   63.349758][  T577] CR2: 0000559b9c1f35e6 CR3: 000000000a973002 CR4: 0000000000772ef0
[   63.350429][  T577] PKRU: 55555554
[   63.350777][  T577] Call Trace:
[   63.351105][  T577]  <TASK>
[ 63.351345][ T577] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 63.351838][ T577] ? rcu_read_lock_any_held (kernel/rcu/update.c:386 kernel/rcu/update.c:380) 
[ 63.352309][ T577] ? validate_chain (kernel/locking/lockdep.c:3804 kernel/locking/lockdep.c:3824 kernel/locking/lockdep.c:3879) 
[ 63.352783][ T577] ? rcu_read_lock_any_held (kernel/rcu/update.c:386 kernel/rcu/update.c:380) 
[ 63.353255][ T577] ? validate_chain (kernel/locking/lockdep.c:3804 kernel/locking/lockdep.c:3824 kernel/locking/lockdep.c:3879) 
[ 63.353692][ T577] netif_set_mtu (net/core/dev.c:9652) 
[ 63.354124][ T577] ? __pfx_netif_set_mtu (net/core/dev.c:9647) 
[ 63.354614][ T577] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 63.355062][ T577] dev_set_mtu (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:47 net/core/dev_api.c:249) 
[ 63.355416][ T577] dev_ifsioc (net/core/dev_ioctl.c:572) 
[ 63.355879][ T577] ? __pfx_dev_ifsioc (net/core/dev_ioctl.c:553) 
[ 63.356323][ T577] ? __pfx___mutex_lock (kernel/locking/mutex.c:746) 
[ 63.356798][ T577] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 63.357250][ T577] ? dev_load (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/dev_ioctl.c:678) 
[ 63.357609][ T577] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 63.358055][ T577] dev_ioctl (net/core/dev_ioctl.c:824) 
[ 63.358437][ T577] sock_do_ioctl (net/socket.c:1252) 
[ 63.358916][ T577] ? __pfx_sock_do_ioctl (net/socket.c:1230) 
[ 63.359609][ T577] ? __pmd_alloc (./arch/x86/include/asm/bitops.h:206 ./arch/x86/include/asm/bitops.h:238 ./include/asm-generic/bitops/instrumented-non-atomic.h:142 ./include/linux/mm.h:976 ./include/linux/mm.h:2879 ./include/linux/mm.h:2977 ./include/asm-generic/pgalloc.h:160 mm/memory.c:6477) 
[ 63.360067][ T577] ? lock_vma_under_rcu (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 mm/mmap_lock.c:171) 
[ 63.361742][ T577] ? __lock_release (kernel/locking/lockdep.c:5585) 
[ 63.362344][ T577] sock_ioctl (net/socket.c:1362) 
[ 63.362815][ T577] ? __pfx_sock_ioctl (net/socket.c:1266) 
[ 63.363391][ T577] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 63.364258][ T577] ? exc_page_fault (./arch/x86/include/asm/irqflags.h:26 ./arch/x86/include/asm/irqflags.h:109 ./arch/x86/include/asm/irqflags.h:151 arch/x86/mm/fault.c:1484 arch/x86/mm/fault.c:1532) 
[ 63.364973][ T577] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 63.366117][ T577] ? exc_page_fault (./arch/x86/include/asm/irqflags.h:26 ./arch/x86/include/asm/irqflags.h:109 ./arch/x86/include/asm/irqflags.h:151 arch/x86/mm/fault.c:1484 arch/x86/mm/fault.c:1532) 
[ 63.367705][ T577] __x64_sys_ioctl (fs/ioctl.c:51 fs/ioctl.c:907 fs/ioctl.c:893 fs/ioctl.c:893) 
[ 63.368605][ T577] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 63.369487][ T577] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[   63.370319][  T577] RIP: 0033:0x7f00fe76ee4b
[ 63.371530][ T577] Code: ff ff ff 85 c0 79 9b 49 c7 c4 ff ff ff ff 5b 5d 4c 89 e0 41 5c c3 66 0f 1f 84 00 00 00 00 00 f3 0f 1e fa b8 10 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d 7d 4f 0f 00 f7 d8 64 89 01 48
All code
========
   0:	ff                   	(bad)
   1:	ff                   	(bad)
   2:	ff 85 c0 79 9b 49    	incl   0x499b79c0(%rbp)
   8:	c7 c4 ff ff ff ff    	mov    $0xffffffff,%esp
   e:	5b                   	pop    %rbx
   f:	5d                   	pop    %rbp
  10:	4c 89 e0             	mov    %r12,%rax
  13:	41 5c                	pop    %r12
  15:	c3                   	ret
  16:	66 0f 1f 84 00 00 00 	nopw   0x0(%rax,%rax,1)
  1d:	00 00 
  1f:	f3 0f 1e fa          	endbr64
  23:	b8 10 00 00 00       	mov    $0x10,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax		<-- trapping instruction
  30:	73 01                	jae    0x33
  32:	c3                   	ret
  33:	48 8b 0d 7d 4f 0f 00 	mov    0xf4f7d(%rip),%rcx        # 0xf4fb7
  3a:	f7 d8                	neg    %eax
  3c:	64 89 01             	mov    %eax,%fs:(%rcx)
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax
   6:	73 01                	jae    0x9
   8:	c3                   	ret
   9:	48 8b 0d 7d 4f 0f 00 	mov    0xf4f7d(%rip),%rcx        # 0xf4f8d
  10:	f7 d8                	neg    %eax
  12:	64 89 01             	mov    %eax,%fs:(%rcx)
  15:	48                   	rex.W
[   63.373580][  T577] RSP: 002b:00007fffd452ebd8 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
[   63.374544][  T577] RAX: ffffffffffffffda RBX: 00007fffd452ef38 RCX: 00007f00fe76ee4b
[   63.375587][  T577] RDX: 00007fffd452ec30 RSI: 0000000000008922 RDI: 0000000000000008
[   63.376574][  T577] RBP: 00007fffd452ef48 R08: 1999999999999999 R09: 0000000000000000
[   63.377637][  T577] R10: 00007f00fe809ac0 R11: 0000000000000246 R12: 00007fffd4530981
[   63.378604][  T577] R13: 0000559b9c1e28f0 R14: 00007fffd452ec30 R15: 0000559b9c1ed8a2
| [   73.563916][  T656] ------------[ cut here ]------------
| [ 73.564788][ T656] WARNING: CPU: 3 PID: 656 at ./include/net/netdev_lock.h:17 netif_set_mtu_ext (./include/net/netdev_lock.h:17 ./include/net/netdev_lock.h:15 ./include/net/netdev_lock.h:25 net/core/dev.c:9610) 
| [   73.565385][  T656] Modules linked in: nf_conntrack_netlink xt_conntrack nft_compat nf_tables nf_conntrack nf_defrag_ipv6 nf_defrag_ipv4 tun
| [   73.566703][  T656] Tainted: [W]=WARN
[   73.566919][  T656] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 73.567380][ T656] RIP: 0010:netif_set_mtu_ext (./include/net/netdev_lock.h:17 ./include/net/netdev_lock.h:15 ./include/net/netdev_lock.h:25 net/core/dev.c:9610) 
[ 73.567682][ T656] Code: 00 00 8b 05 87 1c 38 02 85 c0 0f 84 52 fe ff ff 48 8d bb a0 0c 00 00 be ff ff ff ff e8 ca d1 79 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 87 1c 38 02    	mov    0x2381c87(%rip),%eax        # 0x2381c8f
   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 ca d1 79 00       	call   0x79d1eb
  21:	85 c0                	test   %eax,%eax
  23:	0f 85 39 fe ff ff    	jne    0xfffffffffffffe62
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	e9 30 fe ff ff       	jmp    0xfffffffffffffe62
  32:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
  39:	fc ff df 
  3c:	4c 89 fa             	mov    %r15,%rdx
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	e9 30 fe ff ff       	jmp    0xfffffffffffffe38
   8:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
   f:	fc ff df 
  12:	4c 89 fa             	mov    %r15,%rdx
  15:	48                   	rex.W
[   73.568749][  T656] RSP: 0018:ffffc90001027930 EFLAGS: 00010246
[   73.569163][  T656] RAX: 0000000000000000 RBX: ffff888015a98000 RCX: 0000000000000001
[   73.569608][  T656] RDX: 0000000000000000 RSI: ffffffffac49f52e RDI: ffffffffabc5a5a0
[   73.570048][  T656] RBP: ffffc90001027a18 R08: ffff888015a98008 R09: 0000000000000000
[   73.570482][  T656] R10: ffffc90001027a48 R11: ffffffffad259728 R12: 1ffff92000204f2a
[   73.570914][  T656] R13: 00000000000005f0 R14: ffffc90001027a48 R15: ffffc90001027d40
[   73.571349][  T656] FS:  00007fca02e90740(0000) GS:ffff888087e27000(0000) knlGS:0000000000000000
[   73.571866][  T656] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   73.572233][  T656] CR2: 00005572949a85e6 CR3: 000000000c09c006 CR4: 0000000000772ef0
[   73.572667][  T656] PKRU: 55555554
[   73.572886][  T656] Call Trace:
[   73.573100][  T656]  <TASK>
[ 73.573261][ T656] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 73.573554][ T656] ? rcu_read_lock_any_held (kernel/rcu/update.c:386 kernel/rcu/update.c:380) 
[ 73.573844][ T656] ? validate_chain (kernel/locking/lockdep.c:3804 kernel/locking/lockdep.c:3824 kernel/locking/lockdep.c:3879) 
[ 73.574137][ T656] ? rcu_read_lock_any_held (kernel/rcu/update.c:386 kernel/rcu/update.c:380) 
[ 73.574449][ T656] ? validate_chain (kernel/locking/lockdep.c:3804 kernel/locking/lockdep.c:3824 kernel/locking/lockdep.c:3879) 
[ 73.574738][ T656] netif_set_mtu (net/core/dev.c:9652) 
[ 73.575027][ T656] ? __pfx_netif_set_mtu (net/core/dev.c:9647) 
[ 73.575332][ T656] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 73.575623][ T656] dev_set_mtu (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:47 net/core/dev_api.c:249) 
[ 73.575849][ T656] dev_ifsioc (net/core/dev_ioctl.c:572) 
[ 73.576139][ T656] ? __pfx_dev_ifsioc (net/core/dev_ioctl.c:553) 
[ 73.576435][ T656] ? __pfx___mutex_lock (kernel/locking/mutex.c:746) 
[ 73.576731][ T656] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 73.577048][ T656] ? dev_load (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/dev_ioctl.c:678) 
[ 73.577277][ T656] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 73.577571][ T656] dev_ioctl (net/core/dev_ioctl.c:824) 
[ 73.577794][ T656] sock_do_ioctl (net/socket.c:1252) 
[ 73.578093][ T656] ? __pfx_sock_do_ioctl (net/socket.c:1230) 
[ 73.578386][ T656] ? __pmd_alloc (./arch/x86/include/asm/bitops.h:206 ./arch/x86/include/asm/bitops.h:238 ./include/asm-generic/bitops/instrumented-non-atomic.h:142 ./include/linux/mm.h:976 ./include/linux/mm.h:2879 ./include/linux/mm.h:2977 ./include/asm-generic/pgalloc.h:160 mm/memory.c:6477) 
[ 73.578673][ T656] ? lock_vma_under_rcu (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 mm/mmap_lock.c:171) 
[ 73.578962][ T656] ? __lock_release (kernel/locking/lockdep.c:5585) 
[ 73.579269][ T656] sock_ioctl (net/socket.c:1362) 
[ 73.579487][ T656] ? __pfx_sock_ioctl (net/socket.c:1266) 
[ 73.579773][ T656] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 73.580062][ T656] ? exc_page_fault (./arch/x86/include/asm/irqflags.h:26 ./arch/x86/include/asm/irqflags.h:109 ./arch/x86/include/asm/irqflags.h:151 arch/x86/mm/fault.c:1484 arch/x86/mm/fault.c:1532) 
[ 73.580366][ T656] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 73.580652][ T656] ? exc_page_fault (./arch/x86/include/asm/irqflags.h:26 ./arch/x86/include/asm/irqflags.h:109 ./arch/x86/include/asm/irqflags.h:151 arch/x86/mm/fault.c:1484 arch/x86/mm/fault.c:1532) 
[ 73.580945][ T656] __x64_sys_ioctl (fs/ioctl.c:51 fs/ioctl.c:907 fs/ioctl.c:893 fs/ioctl.c:893) 
[ 73.581246][ T656] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 73.581584][ T656] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[   73.581962][  T656] RIP: 0033:0x7fca02f96e4b
[ 73.582284][ T656] Code: ff ff ff 85 c0 79 9b 49 c7 c4 ff ff ff ff 5b 5d 4c 89 e0 41 5c c3 66 0f 1f 84 00 00 00 00 00 f3 0f 1e fa b8 10 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d 7d 4f 0f 00 f7 d8 64 89 01 48
All code
========
   0:	ff                   	(bad)
   1:	ff                   	(bad)
   2:	ff 85 c0 79 9b 49    	incl   0x499b79c0(%rbp)
   8:	c7 c4 ff ff ff ff    	mov    $0xffffffff,%esp
   e:	5b                   	pop    %rbx
   f:	5d                   	pop    %rbp
  10:	4c 89 e0             	mov    %r12,%rax
  13:	41 5c                	pop    %r12
  15:	c3                   	ret
  16:	66 0f 1f 84 00 00 00 	nopw   0x0(%rax,%rax,1)
  1d:	00 00 
  1f:	f3 0f 1e fa          	endbr64
  23:	b8 10 00 00 00       	mov    $0x10,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax		<-- trapping instruction
  30:	73 01                	jae    0x33
  32:	c3                   	ret
  33:	48 8b 0d 7d 4f 0f 00 	mov    0xf4f7d(%rip),%rcx        # 0xf4fb7
  3a:	f7 d8                	neg    %eax
  3c:	64 89 01             	mov    %eax,%fs:(%rcx)
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax
   6:	73 01                	jae    0x9
   8:	c3                   	ret
   9:	48 8b 0d 7d 4f 0f 00 	mov    0xf4f7d(%rip),%rcx        # 0xf4f8d
  10:	f7 d8                	neg    %eax
  12:	64 89 01             	mov    %eax,%fs:(%rcx)
  15:	48                   	rex.W
[   73.583401][  T656] RSP: 002b:00007ffcce72d218 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
[   73.583859][  T656] RAX: ffffffffffffffda RBX: 00007ffcce72d578 RCX: 00007fca02f96e4b
[   73.584327][  T656] RDX: 00007ffcce72d270 RSI: 0000000000008922 RDI: 0000000000000008
[   73.584819][  T656] RBP: 00007ffcce72d588 R08: 1999999999999999 R09: 0000000000000000
[   73.585291][  T656] R10: 00007fca03031ac0 R11: 0000000000000246 R12: 00007ffcce72e981


Finger prints:
netif_set_mtu_ext:netif_set_mtu:dev_set_mtu:dev_ifsioc:dev_ioctl