======================================
| xx__-> [   17.640051][  T253] tun: Universal TUN/TAP device driver, 1.6
| [   22.467252][  T284] ------------[ cut here ]------------
| [ 22.467764][ T284] WARNING: CPU: 1 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) 
| [   22.468383][  T284] Modules linked in: xt_conntrack nft_compat nf_tables nf_conntrack nf_defrag_ipv6 nf_defrag_ipv4 tun
[   22.470858][  T284] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 22.471238][ 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) 
[ 22.471546][ T284] Code: 00 00 8b 05 67 1b 38 02 85 c0 0f 84 52 fe ff ff 48 8d bb a0 0c 00 00 be ff ff ff ff e8 aa d0 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 67 1b 38 02    	mov    0x2381b67(%rip),%eax        # 0x2381b6f
   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 aa d0 79 00       	call   0x79d0cb
  21:	85 c0                	test   %eax,%eax
  23:	0f 85 39 fe ff ff    	jne    0xfffffffffffffe62
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	e9 30 fe ff ff       	jmp    0xfffffffffffffe62
  32:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
  39:	fc ff df 
  3c:	4c 89 fa             	mov    %r15,%rdx
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	e9 30 fe ff ff       	jmp    0xfffffffffffffe38
   8:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
   f:	fc ff df 
  12:	4c 89 fa             	mov    %r15,%rdx
  15:	48                   	rex.W
[   22.472576][  T284] RSP: 0018:ffffc90000bd7930 EFLAGS: 00010246
[   22.472959][  T284] RAX: 0000000000000000 RBX: ffff88800ef58000 RCX: 0000000000000001
[   22.473405][  T284] RDX: 0000000000000000 RSI: ffffffffb9a9f52e RDI: ffffffffb925a5a0
[   22.473847][  T284] RBP: ffffc90000bd7a18 R08: ffff88800ef58008 R09: 0000000000000000
[   22.474324][  T284] R10: ffffc90000bd7a48 R11: ffffffffba859728 R12: 1ffff9200017af2a
[   22.474749][  T284] R13: 00000000000005f0 R14: ffffc90000bd7a48 R15: ffffc90000bd7d40
[   22.475171][  T284] FS:  00007f0995b7c740(0000) GS:ffff888073727000(0000) knlGS:0000000000000000
[   22.475677][  T284] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   22.476049][  T284] CR2: 0000562042d045e6 CR3: 000000000c0a3001 CR4: 0000000000772ef0
[   22.476485][  T284] PKRU: 55555554
[   22.476695][  T284] Call Trace:
[   22.476909][  T284]  <TASK>
[ 22.477061][ T284] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 22.477355][ T284] ? rcu_read_lock_any_held (kernel/rcu/update.c:386 kernel/rcu/update.c:380) 
[ 22.477642][ T284] ? validate_chain (kernel/locking/lockdep.c:3804 kernel/locking/lockdep.c:3824 kernel/locking/lockdep.c:3879) 
[ 22.477923][ T284] ? rcu_read_lock_any_held (kernel/rcu/update.c:386 kernel/rcu/update.c:380) 
[ 22.478230][ T284] ? validate_chain (kernel/locking/lockdep.c:3804 kernel/locking/lockdep.c:3824 kernel/locking/lockdep.c:3879) 
[ 22.478509][ T284] netif_set_mtu (net/core/dev.c:9652) 
[ 22.478795][ T284] ? __pfx_netif_set_mtu (net/core/dev.c:9647) 
[ 22.479092][ T284] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 22.479744][ T284] dev_set_mtu (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:47 net/core/dev_api.c:249) 
[ 22.479962][ T284] dev_ifsioc (net/core/dev_ioctl.c:572) 
[ 22.480266][ T284] ? __pfx_dev_ifsioc (net/core/dev_ioctl.c:553) 
[ 22.480545][ T284] ? __pfx___mutex_lock (kernel/locking/mutex.c:746) 
[ 22.480847][ T284] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 22.481157][ T284] ? dev_load (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/dev_ioctl.c:678) 
[ 22.481378][ T284] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 22.481684][ T284] dev_ioctl (net/core/dev_ioctl.c:824) 
[ 22.481896][ T284] sock_do_ioctl (net/socket.c:1252) 
[ 22.482201][ T284] ? __pfx_sock_do_ioctl (net/socket.c:1230) 
[ 22.482481][ 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) 
[ 22.482762][ T284] ? lock_vma_under_rcu (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 mm/mmap_lock.c:171) 
[ 22.483048][ T284] ? __lock_release (kernel/locking/lockdep.c:5585) 
[ 22.483349][ T284] sock_ioctl (net/socket.c:1362) 
[ 22.483561][ T284] ? __pfx_sock_ioctl (net/socket.c:1266) 
[ 22.483839][ T284] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 22.484121][ 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) 
[ 22.484423][ T284] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 22.484707][ 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) 
[ 22.485026][ T284] __x64_sys_ioctl (fs/ioctl.c:51 fs/ioctl.c:907 fs/ioctl.c:893 fs/ioctl.c:893) 
[ 22.485347][ T284] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 22.485628][ T284] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[   22.485986][  T284] RIP: 0033:0x7f0995c82e4b
[ 22.486299][ 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
[   22.487318][  T284] RSP: 002b:00007ffdab0b9368 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
[   22.487746][  T284] RAX: ffffffffffffffda RBX: 00007ffdab0b96c8 RCX: 00007f0995c82e4b
[   22.488165][  T284] RDX: 00007ffdab0b93c0 RSI: 0000000000008922 RDI: 0000000000000008
[   22.488605][  T284] RBP: 00007ffdab0b96d8 R08: 1999999999999999 R09: 0000000000000000
[   22.489085][  T284] R10: 00007f0995d1dac0 R11: 0000000000000246 R12: 00007ffdab0bb981
[   22.489535][  T284] R13: 0000562042cf38f0 R14: 00007ffdab0b93c0 R15: 0000562042cfe8a2
| [   31.994393][  T346] ------------[ cut here ]------------
| [ 31.994770][ T346] WARNING: CPU: 1 PID: 346 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) 
| [   31.995367][  T346] Modules linked in: nf_conntrack_netlink xt_conntrack nft_compat nf_tables nf_conntrack nf_defrag_ipv6 nf_defrag_ipv4 tun
| [   31.996761][  T346] Tainted: [W]=WARN
[   31.996997][  T346] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 31.998688][ T346] 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) 
[ 31.999024][ T346] Code: 00 00 8b 05 67 1b 38 02 85 c0 0f 84 52 fe ff ff 48 8d bb a0 0c 00 00 be ff ff ff ff e8 aa d0 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 67 1b 38 02    	mov    0x2381b67(%rip),%eax        # 0x2381b6f
   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 aa d0 79 00       	call   0x79d0cb
  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
[   32.000110][  T346] RSP: 0018:ffffc90000517930 EFLAGS: 00010246
[   32.000495][  T346] RAX: 0000000000000000 RBX: ffff888004cb8000 RCX: 0000000000000001
[   32.001016][  T346] RDX: 0000000000000000 RSI: ffffffffb9a9f52e RDI: ffffffffb925a5a0
[   32.001455][  T346] RBP: ffffc90000517a18 R08: ffff888004cb8008 R09: 0000000000000000
[   32.001905][  T346] R10: ffffc90000517a48 R11: ffffffffba859728 R12: 1ffff920000a2f2a
[   32.002344][  T346] R13: 00000000000005f0 R14: ffffc90000517a48 R15: ffffc90000517d40
[   32.002781][  T346] FS:  00007f39d66f1740(0000) GS:ffff888073727000(0000) knlGS:0000000000000000
[   32.003290][  T346] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   32.003653][  T346] CR2: 00005629e1e3c5e6 CR3: 0000000004fd0004 CR4: 0000000000772ef0
[   32.004106][  T346] PKRU: 55555554
[   32.004350][  T346] Call Trace:
[   32.004578][  T346]  <TASK>
[ 32.004743][ T346] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 32.005035][ T346] ? rcu_read_lock_any_held (kernel/rcu/update.c:386 kernel/rcu/update.c:380) 
[ 32.005334][ T346] ? validate_chain (kernel/locking/lockdep.c:3804 kernel/locking/lockdep.c:3824 kernel/locking/lockdep.c:3879) 
[ 32.005628][ T346] ? rcu_read_lock_any_held (kernel/rcu/update.c:386 kernel/rcu/update.c:380) 
[ 32.005927][ T346] ? validate_chain (kernel/locking/lockdep.c:3804 kernel/locking/lockdep.c:3824 kernel/locking/lockdep.c:3879) 
[ 32.006227][ T346] netif_set_mtu (net/core/dev.c:9652) 
[ 32.006517][ T346] ? __pfx_netif_set_mtu (net/core/dev.c:9647) 
[ 32.006827][ T346] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 32.007120][ T346] dev_set_mtu (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:47 net/core/dev_api.c:249) 
[ 32.007349][ T346] dev_ifsioc (net/core/dev_ioctl.c:572) 
[ 32.007638][ T346] ? __pfx_dev_ifsioc (net/core/dev_ioctl.c:553) 
[ 32.007935][ T346] ? __pfx___mutex_lock (kernel/locking/mutex.c:746) 
[ 32.008254][ T346] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 32.008554][ T346] ? dev_load (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/dev_ioctl.c:678) 
[ 32.008848][ T346] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 32.009354][ T346] dev_ioctl (net/core/dev_ioctl.c:824) 
[ 32.009575][ T346] sock_do_ioctl (net/socket.c:1252) 
[ 32.009871][ T346] ? __pfx_sock_do_ioctl (net/socket.c:1230) 
[ 32.010155][ T346] ? __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) 
[ 32.010448][ T346] ? lock_vma_under_rcu (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 mm/mmap_lock.c:171) 
[ 32.010739][ T346] ? __lock_release (kernel/locking/lockdep.c:5585) 
[ 32.011038][ T346] sock_ioctl (net/socket.c:1362) 
[ 32.011264][ T346] ? __pfx_sock_ioctl (net/socket.c:1266) 
[ 32.011550][ T346] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 32.011837][ T346] ? 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) 
[ 32.012127][ T346] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 32.012441][ T346] ? 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) 
[ 32.012736][ T346] __x64_sys_ioctl (fs/ioctl.c:51 fs/ioctl.c:907 fs/ioctl.c:893 fs/ioctl.c:893) 
[ 32.013044][ T346] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 32.013383][ T346] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[   32.013744][  T346] RIP: 0033:0x7f39d67f7e4b
[ 32.014047][ T346] 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
[   32.015086][  T346] RSP: 002b:00007ffc2544dde8 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
[   32.015541][  T346] RAX: ffffffffffffffda RBX: 00007ffc2544e148 RCX: 00007f39d67f7e4b
[   32.015974][  T346] RDX: 00007ffc2544de40 RSI: 0000000000008922 RDI: 0000000000000008
[   32.016423][  T346] RBP: 00007ffc2544e158 R08: 1999999999999999 R09: 0000000000000000
[   32.016864][  T346] R10: 00007f39d6892ac0 R11: 0000000000000246 R12: 00007ffc2544e981
[   32.017309][  T346] R13: 00005629e1e2b8f0 R14: 00007ffc2544de40 R15: 00005629e1e368a2
| [   41.746961][  T421] ------------[ cut here ]------------
| [ 41.747750][ T421] WARNING: CPU: 3 PID: 421 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) 
| [   41.748331][  T421] Modules linked in: nf_conntrack_netlink xt_conntrack nft_compat nf_tables nf_conntrack nf_defrag_ipv6 nf_defrag_ipv4 tun
| [   41.749639][  T421] Tainted: [W]=WARN
[   41.749861][  T421] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 41.750237][ T421] 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) 
[ 41.750535][ T421] Code: 00 00 8b 05 67 1b 38 02 85 c0 0f 84 52 fe ff ff 48 8d bb a0 0c 00 00 be ff ff ff ff e8 aa d0 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 67 1b 38 02    	mov    0x2381b67(%rip),%eax        # 0x2381b6f
   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 aa d0 79 00       	call   0x79d0cb
  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
[   41.751562][  T421] RSP: 0018:ffffc90000977930 EFLAGS: 00010246
[   41.751925][  T421] RAX: 0000000000000000 RBX: ffff888009614000 RCX: 0000000000000001
[   41.752352][  T421] RDX: 0000000000000000 RSI: ffffffffb9a9f52e RDI: ffffffffb925a5a0
[   41.752775][  T421] RBP: ffffc90000977a18 R08: ffff888009614008 R09: 0000000000000000
[   41.753224][  T421] R10: ffffc90000977a48 R11: ffffffffba859728 R12: 1ffff9200012ef2a
[   41.753655][  T421] R13: 00000000000005f0 R14: ffffc90000977a48 R15: ffffc90000977d40
[   41.754073][  T421] FS:  00007f34627e0740(0000) GS:ffff888073827000(0000) knlGS:0000000000000000
[   41.754586][  T421] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   41.754938][  T421] CR2: 0000559e1e5855e6 CR3: 00000000057de006 CR4: 0000000000772ef0
[   41.755354][  T421] PKRU: 55555554
[   41.755561][  T421] Call Trace:
[   41.755763][  T421]  <TASK>
[ 41.755905][ T421] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 41.756192][ T421] ? rcu_read_lock_any_held (kernel/rcu/update.c:386 kernel/rcu/update.c:380) 
[ 41.756468][ T421] ? validate_chain (kernel/locking/lockdep.c:3804 kernel/locking/lockdep.c:3824 kernel/locking/lockdep.c:3879) 
[ 41.756759][ T421] ? rcu_read_lock_any_held (kernel/rcu/update.c:386 kernel/rcu/update.c:380) 
[ 41.757035][ T421] ? validate_chain (kernel/locking/lockdep.c:3804 kernel/locking/lockdep.c:3824 kernel/locking/lockdep.c:3879) 
[ 41.757332][ T421] netif_set_mtu (net/core/dev.c:9652) 
[ 41.757614][ T421] ? __pfx_netif_set_mtu (net/core/dev.c:9647) 
[ 41.757902][ T421] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 41.758217][ T421] dev_set_mtu (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:47 net/core/dev_api.c:249) 
[ 41.758431][ T421] dev_ifsioc (net/core/dev_ioctl.c:572) 
[ 41.758714][ T421] ? __pfx_dev_ifsioc (net/core/dev_ioctl.c:553) 
[ 41.759006][ T421] ? __pfx___mutex_lock (kernel/locking/mutex.c:746) 
[ 41.759295][ T421] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 41.759569][ T421] ? dev_load (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/dev_ioctl.c:678) 
[ 41.759771][ T421] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 41.760065][ T421] dev_ioctl (net/core/dev_ioctl.c:824) 
[ 41.760284][ T421] sock_do_ioctl (net/socket.c:1252) 
[ 41.760564][ T421] ? __pfx_sock_do_ioctl (net/socket.c:1230) 
[ 41.760837][ T421] ? __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) 
[ 41.761132][ T421] ? lock_vma_under_rcu (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 mm/mmap_lock.c:171) 
[ 41.761421][ T421] ? __lock_release (kernel/locking/lockdep.c:5585) 
[ 41.761717][ T421] sock_ioctl (net/socket.c:1362) 
[ 41.761939][ T421] ? __pfx_sock_ioctl (net/socket.c:1266) 
[ 41.762232][ T421] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 41.762528][ T421] ? 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) 
[ 41.762814][ T421] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 41.763088][ T421] ? 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) 
[ 41.763385][ T421] __x64_sys_ioctl (fs/ioctl.c:51 fs/ioctl.c:907 fs/ioctl.c:893 fs/ioctl.c:893) 
[ 41.763663][ T421] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 41.763955][ T421] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[   41.764308][  T421] RIP: 0033:0x7f34628e6e4b
[ 41.764590][ T421] 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
[   41.765579][  T421] RSP: 002b:00007ffc00afe8a8 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
[   41.765989][  T421] RAX: ffffffffffffffda RBX: 00007ffc00afec08 RCX: 00007f34628e6e4b
[   41.766416][  T421] RDX: 00007ffc00afe900 RSI: 0000000000008922 RDI: 0000000000000008
[   41.766824][  T421] RBP: 00007ffc00afec18 R08: 1999999999999999 R09: 0000000000000000
[   41.767251][  T421] R10: 00007f3462981ac0 R11: 0000000000000246 R12: 00007ffc00aff981
[   41.767657][  T421] R13: 0000559e1e5748f0 R14: 00007ffc00afe900 R15: 0000559e1e57f8a2
| [   52.246307][  T505] ------------[ cut here ]------------
| [ 52.246642][ T505] WARNING: CPU: 1 PID: 505 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) 
| [   52.247234][  T505] Modules linked in: nf_conntrack_netlink xt_conntrack nft_compat nf_tables nf_conntrack nf_defrag_ipv6 nf_defrag_ipv4 tun
| [   52.248872][  T505] Tainted: [W]=WARN
[   52.249097][  T505] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 52.249475][ T505] 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) 
[ 52.249788][ T505] Code: 00 00 8b 05 67 1b 38 02 85 c0 0f 84 52 fe ff ff 48 8d bb a0 0c 00 00 be ff ff ff ff e8 aa d0 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 67 1b 38 02    	mov    0x2381b67(%rip),%eax        # 0x2381b6f
   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 aa d0 79 00       	call   0x79d0cb
  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
[   52.250853][  T505] RSP: 0018:ffffc90000967930 EFLAGS: 00010246
[   52.252038][  T505] RAX: 0000000000000000 RBX: ffff888004f88000 RCX: 0000000000000001
[   52.252500][  T505] RDX: 0000000000000000 RSI: ffffffffb9a9f52e RDI: ffffffffb925a5a0
[   52.252935][  T505] RBP: ffffc90000967a18 R08: ffff888004f88008 R09: 0000000000000000
[   52.253376][  T505] R10: ffffc90000967a48 R11: ffffffffba859728 R12: 1ffff9200012cf2a
[   52.253814][  T505] R13: 00000000000005f0 R14: ffffc90000967a48 R15: ffffc90000967d40
[   52.254273][  T505] FS:  00007f81de8f7740(0000) GS:ffff888073727000(0000) knlGS:0000000000000000
[   52.254777][  T505] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   52.255144][  T505] CR2: 0000561f0b4295e6 CR3: 000000000ae1c004 CR4: 0000000000772ef0
[   52.255592][  T505] PKRU: 55555554
[   52.255813][  T505] Call Trace:
[   52.256032][  T505]  <TASK>
[ 52.256197][ T505] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 52.256495][ T505] ? rcu_read_lock_any_held (kernel/rcu/update.c:386 kernel/rcu/update.c:380) 
[ 52.256789][ T505] ? validate_chain (kernel/locking/lockdep.c:3804 kernel/locking/lockdep.c:3824 kernel/locking/lockdep.c:3879) 
[ 52.257088][ T505] ? rcu_read_lock_any_held (kernel/rcu/update.c:386 kernel/rcu/update.c:380) 
[ 52.257386][ T505] ? validate_chain (kernel/locking/lockdep.c:3804 kernel/locking/lockdep.c:3824 kernel/locking/lockdep.c:3879) 
[ 52.257678][ T505] netif_set_mtu (net/core/dev.c:9652) 
[ 52.257970][ T505] ? __pfx_netif_set_mtu (net/core/dev.c:9647) 
[ 52.258288][ T505] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 52.258592][ T505] dev_set_mtu (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:47 net/core/dev_api.c:249) 
[ 52.258827][ T505] dev_ifsioc (net/core/dev_ioctl.c:572) 
[ 52.259124][ T505] ? __pfx_dev_ifsioc (net/core/dev_ioctl.c:553) 
[ 52.259425][ T505] ? __pfx___mutex_lock (kernel/locking/mutex.c:746) 
[ 52.259725][ T505] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 52.260018][ T505] ? dev_load (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/dev_ioctl.c:678) 
[ 52.260246][ T505] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 52.260548][ T505] dev_ioctl (net/core/dev_ioctl.c:824) 
[ 52.260776][ T505] sock_do_ioctl (net/socket.c:1252) 
[ 52.261070][ T505] ? __pfx_sock_do_ioctl (net/socket.c:1230) 
[ 52.261370][ T505] ? __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) 
[ 52.261655][ T505] ? lock_vma_under_rcu (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 mm/mmap_lock.c:171) 
[ 52.261948][ T505] ? __lock_release (kernel/locking/lockdep.c:5585) 
[ 52.262272][ T505] sock_ioctl (net/socket.c:1362) 
[ 52.262493][ T505] ? __pfx_sock_ioctl (net/socket.c:1266) 
[ 52.262784][ T505] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 52.263082][ T505] ? 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) 
[ 52.263385][ T505] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 52.263680][ T505] ? 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) 
[ 52.263967][ T505] __x64_sys_ioctl (fs/ioctl.c:51 fs/ioctl.c:907 fs/ioctl.c:893 fs/ioctl.c:893) 
[ 52.264270][ T505] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 52.264564][ T505] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[   52.264925][  T505] RIP: 0033:0x7f81de9fde4b
[ 52.265234][ T505] 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
[   52.266294][  T505] RSP: 002b:00007fff31299fa8 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
[   52.266741][  T505] RAX: ffffffffffffffda RBX: 00007fff3129a308 RCX: 00007f81de9fde4b
[   52.267190][  T505] RDX: 00007fff3129a000 RSI: 0000000000008922 RDI: 0000000000000008
[   52.267616][  T505] RBP: 00007fff3129a318 R08: 1999999999999999 R09: 0000000000000000
[   52.268050][  T505] R10: 00007f81dea98ac0 R11: 0000000000000246 R12: 00007fff3129a981
[   52.268492][  T505] R13: 0000561f0b4188f0 R14: 00007fff3129a000 R15: 0000561f0b4238a2
| [   63.626400][  T578] ------------[ cut here ]------------
| [ 63.626868][ T578] WARNING: CPU: 3 PID: 578 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) 
| [   63.627635][  T578] Modules linked in: nf_conntrack_netlink xt_conntrack nft_compat nf_tables nf_conntrack nf_defrag_ipv6 nf_defrag_ipv4 tun
| [   63.629498][  T578] Tainted: [W]=WARN
[   63.629743][  T578] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 63.630147][ T578] 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) 
[ 63.630485][ T578] Code: 00 00 8b 05 67 1b 38 02 85 c0 0f 84 52 fe ff ff 48 8d bb a0 0c 00 00 be ff ff ff ff e8 aa d0 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 67 1b 38 02    	mov    0x2381b67(%rip),%eax        # 0x2381b6f
   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 aa d0 79 00       	call   0x79d0cb
  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
[   63.631647][  T578] RSP: 0018:ffffc90000f37930 EFLAGS: 00010246
[   63.632048][  T578] RAX: 0000000000000000 RBX: ffff888009200000 RCX: 0000000000000001
[   63.632512][  T578] RDX: 0000000000000000 RSI: ffffffffb9a9f52e RDI: ffffffffb925a5a0
[   63.633015][  T578] RBP: ffffc90000f37a18 R08: ffff888009200008 R09: 0000000000000000
[   63.633493][  T578] R10: ffffc90000f37a48 R11: ffffffffba859728 R12: 1ffff920001e6f2a
[   63.633952][  T578] R13: 00000000000005f0 R14: ffffc90000f37a48 R15: ffffc90000f37d40
[   63.634450][  T578] FS:  00007fd050294740(0000) GS:ffff888073827000(0000) knlGS:0000000000000000
[   63.635012][  T578] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   63.635421][  T578] CR2: 0000561cdbe3c5e6 CR3: 000000000a2e8005 CR4: 0000000000772ef0
[   63.635910][  T578] PKRU: 55555554
[   63.636143][  T578] Call Trace:
[   63.636391][  T578]  <TASK>
[ 63.636558][ T578] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 63.636878][ T578] ? rcu_read_lock_any_held (kernel/rcu/update.c:386 kernel/rcu/update.c:380) 
[ 63.637244][ T578] ? validate_chain (kernel/locking/lockdep.c:3804 kernel/locking/lockdep.c:3824 kernel/locking/lockdep.c:3879) 
[ 63.637582][ T578] ? rcu_read_lock_any_held (kernel/rcu/update.c:386 kernel/rcu/update.c:380) 
[ 63.637974][ T578] ? validate_chain (kernel/locking/lockdep.c:3804 kernel/locking/lockdep.c:3824 kernel/locking/lockdep.c:3879) 
[ 63.638397][ T578] netif_set_mtu (net/core/dev.c:9652) 
[ 63.638809][ T578] ? __pfx_netif_set_mtu (net/core/dev.c:9647) 
[ 63.639241][ T578] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 63.639632][ T578] dev_set_mtu (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:47 net/core/dev_api.c:249) 
[ 63.639947][ T578] dev_ifsioc (net/core/dev_ioctl.c:572) 
[ 63.640336][ T578] ? __pfx_dev_ifsioc (net/core/dev_ioctl.c:553) 
[ 63.640732][ T578] ? __pfx___mutex_lock (kernel/locking/mutex.c:746) 
[ 63.641111][ T578] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 63.641444][ T578] ? dev_load (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/dev_ioctl.c:678) 
[ 63.641679][ T578] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 63.641999][ T578] dev_ioctl (net/core/dev_ioctl.c:824) 
[ 63.642249][ T578] sock_do_ioctl (net/socket.c:1252) 
[ 63.642566][ T578] ? __pfx_sock_do_ioctl (net/socket.c:1230) 
[ 63.642890][ T578] ? __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) 
[ 63.643215][ T578] ? lock_vma_under_rcu (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 mm/mmap_lock.c:171) 
[ 63.643527][ T578] ? __lock_release (kernel/locking/lockdep.c:5585) 
[ 63.643851][ T578] sock_ioctl (net/socket.c:1362) 
[ 63.644094][ T578] ? __pfx_sock_ioctl (net/socket.c:1266) 
[ 63.644431][ T578] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 63.644743][ T578] ? 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) 
[ 63.645100][ T578] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 63.645526][ T578] ? 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) 
[ 63.645854][ T578] __x64_sys_ioctl (fs/ioctl.c:51 fs/ioctl.c:907 fs/ioctl.c:893 fs/ioctl.c:893) 
[ 63.646167][ T578] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 63.646520][ T578] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[   63.646906][  T578] RIP: 0033:0x7fd05039ae4b
[ 63.647259][ T578] 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
[   63.648402][  T578] RSP: 002b:00007ffc64bfb878 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
[   63.648890][  T578] RAX: ffffffffffffffda RBX: 00007ffc64bfbbd8 RCX: 00007fd05039ae4b
[   63.649392][  T578] RDX: 00007ffc64bfb8d0 RSI: 0000000000008922 RDI: 0000000000000008
[   63.649867][  T578] RBP: 00007ffc64bfbbe8 R08: 1999999999999999 R09: 0000000000000000
[   63.650324][  T578] R10: 00007fd050435ac0 R11: 0000000000000246 R12: 00007ffc64bfc981
[   63.650795][  T578] R13: 0000561cdbe2b8f0 R14: 00007ffc64bfb8d0 R15: 0000561cdbe368a2
| [   74.050901][  T656] ------------[ cut here ]------------
| [ 74.051351][ T656] WARNING: CPU: 0 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) 
| [   74.051898][  T656] Modules linked in: nf_conntrack_netlink xt_conntrack nft_compat nf_tables nf_conntrack nf_defrag_ipv6 nf_defrag_ipv4 tun
| [   74.053525][  T656] Tainted: [W]=WARN
[   74.053733][  T656] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 74.054084][ 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) 
[ 74.054390][ T656] Code: 00 00 8b 05 67 1b 38 02 85 c0 0f 84 52 fe ff ff 48 8d bb a0 0c 00 00 be ff ff ff ff e8 aa d0 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 67 1b 38 02    	mov    0x2381b67(%rip),%eax        # 0x2381b6f
   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 aa d0 79 00       	call   0x79d0cb
  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
[   74.055472][  T656] RSP: 0018:ffffc90000f57930 EFLAGS: 00010246
[   74.055832][  T656] RAX: 0000000000000000 RBX: ffff888009814000 RCX: 0000000000000001
[   74.056269][  T656] RDX: 0000000000000000 RSI: ffffffffb9a9f52e RDI: ffffffffb925a5a0
[   74.056682][  T656] RBP: ffffc90000f57a18 R08: ffff888009814008 R09: 0000000000000000
[   74.057114][  T656] R10: ffffc90000f57a48 R11: ffffffffba859728 R12: 1ffff920001eaf2a
[   74.057540][  T656] R13: 00000000000005f0 R14: ffffc90000f57a48 R15: ffffc90000f57d40
[   74.057949][  T656] FS:  00007f41658bc740(0000) GS:ffff8880736a7000(0000) knlGS:0000000000000000
[   74.058461][  T656] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   74.058815][  T656] CR2: 000055af514a05e6 CR3: 00000000099d1003 CR4: 0000000000772ef0
[   74.059272][  T656] PKRU: 55555554
[   74.059480][  T656] Call Trace:
[   74.059688][  T656]  <TASK>
[ 74.059831][ T656] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 74.060122][ T656] ? rcu_read_lock_any_held (kernel/rcu/update.c:386 kernel/rcu/update.c:380) 
[ 74.060409][ T656] ? validate_chain (kernel/locking/lockdep.c:3804 kernel/locking/lockdep.c:3824 kernel/locking/lockdep.c:3879) 
[ 74.060692][ T656] ? rcu_read_lock_any_held (kernel/rcu/update.c:386 kernel/rcu/update.c:380) 
[ 74.060969][ T656] ? validate_chain (kernel/locking/lockdep.c:3804 kernel/locking/lockdep.c:3824 kernel/locking/lockdep.c:3879) 
[ 74.061275][ T656] netif_set_mtu (net/core/dev.c:9652) 
[ 74.061552][ T656] ? __pfx_netif_set_mtu (net/core/dev.c:9647) 
[ 74.061835][ T656] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 74.062126][ T656] dev_set_mtu (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:47 net/core/dev_api.c:249) 
[ 74.062346][ T656] dev_ifsioc (net/core/dev_ioctl.c:572) 
[ 74.062626][ T656] ? __pfx_dev_ifsioc (net/core/dev_ioctl.c:553) 
[ 74.062899][ T656] ? __pfx___mutex_lock (kernel/locking/mutex.c:746) 
[ 74.063214][ T656] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 74.063491][ T656] ? dev_load (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/dev_ioctl.c:678) 
[ 74.063695][ T656] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 74.063980][ T656] dev_ioctl (net/core/dev_ioctl.c:824) 
[ 74.064214][ T656] sock_do_ioctl (net/socket.c:1252) 
[ 74.064494][ T656] ? __pfx_sock_do_ioctl (net/socket.c:1230) 
[ 74.064765][ 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) 
[ 74.065039][ T656] ? lock_vma_under_rcu (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 mm/mmap_lock.c:171) 
[ 74.065364][ T656] ? __lock_release (kernel/locking/lockdep.c:5585) 
[ 74.065658][ T656] sock_ioctl (net/socket.c:1362) 
[ 74.065868][ T656] ? __pfx_sock_ioctl (net/socket.c:1266) 
[ 74.066152][ T656] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 74.066442][ 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) 
[ 74.066716][ T656] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 74.066991][ 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) 
[ 74.067294][ T656] __x64_sys_ioctl (fs/ioctl.c:51 fs/ioctl.c:907 fs/ioctl.c:893 fs/ioctl.c:893) 
[ 74.067585][ T656] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 74.067863][ T656] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[   74.068225][  T656] RIP: 0033:0x7f41659c2e4b
[ 74.068511][ 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
[   74.069539][  T656] RSP: 002b:00007ffdf47b6878 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
[   74.069955][  T656] RAX: ffffffffffffffda RBX: 00007ffdf47b6bd8 RCX: 00007f41659c2e4b
[   74.070397][  T656] RDX: 00007ffdf47b68d0 RSI: 0000000000008922 RDI: 0000000000000008
[   74.070818][  T656] RBP: 00007ffdf47b6be8 R08: 1999999999999999 R09: 0000000000000000
[   74.071257][  T656] R10: 00007f4165a5dac0 R11: 0000000000000246 R12: 00007ffdf47b7981


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