[   54.719413][  T948] netdevsim netdevsim0 netdevsim1 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0
[   54.779600][  T948] netdevsim netdevsim0 netdevsim0 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0
[   54.881092][  T948] ------------[ cut here ]------------
[   54.886839][  T948] WARNING: CPU: 0 PID: 948 at net/core/devlink.c:11162 devlink_trap_groups_unregister+0x347/0x370
[   54.897780][  T948] Modules linked in:
[   54.901697][  T948] CPU: 0 PID: 948 Comm: kworker/u4:4 Not tainted 5.15.0-rc7-next-20211026-syzkaller #0
[   54.911725][  T948] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[   54.921963][  T948] Workqueue: netns cleanup_net
[   54.927006][  T948] RIP: 0010:devlink_trap_groups_unregister+0x347/0x370
[   54.933996][  T948] Code: ff e8 ad c2 8f f9 eb 05 e8 a6 c2 8f f9 48 8b 7c 24 08 48 83 c4 20 5b 41 5c 41 5d 41 5e 41 5f 5d e9 be dc c4 01 e8 89 c2 8f f9 <0f> 0b e9 0f fd ff ff 44 89 e9 80 e1 07 80 c1 03 38 c1 0f 8c dc fc
[   54.953818][  T948] RSP: 0018:ffffc90004f8fa70 EFLAGS: 00010293
[   54.959940][  T948] RAX: ffffffff87ec2ed7 RBX: 0000000000000006 RCX: ffff888018810000
[   54.967966][  T948] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000
[   54.976085][  T948] RBP: ffff888019cdd398 R08: dffffc0000000000 R09: fffffbfff1b39946
[   54.984459][  T948] R10: fffffbfff1b39946 R11: 0000000000000000 R12: ffff888019cdd2e0
[   54.992523][  T948] R13: ffff888019cdd000 R14: dffffc0000000000 R15: 1ffff1100339ba5e
[   55.000574][  T948] FS:  0000000000000000(0000) GS:ffff8880b9c00000(0000) knlGS:0000000000000000
[   55.009572][  T948] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   55.016334][  T948] CR2: 000055ca00291a48 CR3: 000000007f2cb000 CR4: 00000000003506f0
[   55.024721][  T948] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[   55.032780][  T948] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[   55.040818][  T948] Call Trace:
[   55.044152][  T948]  <TASK>
[   55.047086][  T948]  nsim_dev_reload_destroy+0x21f/0x330
[   55.052540][  T948]  nsim_dev_reload_down+0xfb/0x150
[   55.057807][  T948]  devlink_reload+0x1be/0x660
[   55.062508][  T948]  devlink_pernet_pre_exit+0x136/0x270
[   55.068048][  T948]  cleanup_net+0x5b8/0xbe0
[   55.072467][  T948]  process_one_work+0x7b4/0x1070
[   55.077482][  T948]  worker_thread+0xac1/0x1320
[   55.082190][  T948]  ? __kthread_parkme+0x166/0x1c0
[   55.087269][  T948]  kthread+0x468/0x490
[   55.091334][  T948]  ? rcu_lock_release+0x20/0x20
[   55.096247][  T948]  ? kthread_blkcg+0xd0/0xd0
[   55.100878][  T948]  ret_from_fork+0x1f/0x30
[   55.105366][  T948]  </TASK>
[   55.108386][  T948] Kernel panic - not syncing: panic_on_warn set ...
[   55.115208][  T948] CPU: 0 PID: 948 Comm: kworker/u4:4 Not tainted 5.15.0-rc7-next-20211026-syzkaller #0
[   55.124811][  T948] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[   55.135019][  T948] Workqueue: netns cleanup_net
[   55.139773][  T948] Call Trace:
[   55.143212][  T948]  <TASK>
[   55.146147][  T948]  dump_stack_lvl+0x12e/0x1d8
[   55.150911][  T948]  panic+0x23f/0x750
[   55.154878][  T948]  ? __warn+0x13e/0x270
[   55.159106][  T948]  __warn+0x26a/0x270
[   55.163069][  T948]  ? devlink_trap_groups_unregister+0x347/0x370
[   55.169298][  T948]  ? devlink_trap_groups_unregister+0x347/0x370
[   55.175519][  T948]  report_bug+0x1b1/0x2e0
[   55.179837][  T948]  handle_bug+0x3d/0x70
[   55.183977][  T948]  exc_invalid_op+0x16/0x40
[   55.188462][  T948]  asm_exc_invalid_op+0x12/0x20
[   55.193393][  T948] RIP: 0010:devlink_trap_groups_unregister+0x347/0x370
[   55.200324][  T948] Code: ff e8 ad c2 8f f9 eb 05 e8 a6 c2 8f f9 48 8b 7c 24 08 48 83 c4 20 5b 41 5c 41 5d 41 5e 41 5f 5d e9 be dc c4 01 e8 89 c2 8f f9 <0f> 0b e9 0f fd ff ff 44 89 e9 80 e1 07 80 c1 03 38 c1 0f 8c dc fc
[   55.220005][  T948] RSP: 0018:ffffc90004f8fa70 EFLAGS: 00010293
[   55.226143][  T948] RAX: ffffffff87ec2ed7 RBX: 0000000000000006 RCX: ffff888018810000
[   55.234103][  T948] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000
[   55.242062][  T948] RBP: ffff888019cdd398 R08: dffffc0000000000 R09: fffffbfff1b39946
[   55.250013][  T948] R10: fffffbfff1b39946 R11: 0000000000000000 R12: ffff888019cdd2e0
[   55.257970][  T948] R13: ffff888019cdd000 R14: dffffc0000000000 R15: 1ffff1100339ba5e
[   55.265931][  T948]  ? devlink_trap_groups_unregister+0x347/0x370
[   55.272177][  T948]  nsim_dev_reload_destroy+0x21f/0x330
[   55.277627][  T948]  nsim_dev_reload_down+0xfb/0x150
[   55.282722][  T948]  devlink_reload+0x1be/0x660
[   55.287398][  T948]  devlink_pernet_pre_exit+0x136/0x270
[   55.292844][  T948]  cleanup_net+0x5b8/0xbe0
[   55.297265][  T948]  process_one_work+0x7b4/0x1070
[   55.302205][  T948]  worker_thread+0xac1/0x1320
[   55.306890][  T948]  ? __kthread_parkme+0x166/0x1c0
[   55.311906][  T948]  kthread+0x468/0x490
[   55.315960][  T948]  ? rcu_lock_release+0x20/0x20
[   55.320805][  T948]  ? kthread_blkcg+0xd0/0xd0
[   55.325386][  T948]  ret_from_fork+0x1f/0x30
[   55.329797][  T948]  </TASK>
[   55.333026][  T948] Kernel Offset: disabled
[   55.337439][  T948] Rebooting in 86400 seconds..