[   20.818891][  T226] packetdrill (226) used greatest stack depth: 24144 bytes left
[   21.108945][  T266] ------------[ cut here ]------------
[   21.110886][  T266] WARNING: CPU: 1 PID: 266 at ./include/net/netdev_lock.h:17 netif_set_mtu_ext+0x27f/0x5c0
[   21.111900][  T266] Modules linked in:
[   21.112211][  T266] CPU: 1 UID: 0 PID: 266 Comm: ifconfig Not tainted 6.16.0-rc4-virtme #1 PREEMPT(full) 
[   21.112736][  T266] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   21.113093][  T266] RIP: 0010:netif_set_mtu_ext+0x27f/0x5c0
[   21.113407][  T266] Code: 00 00 8b 05 a7 0e 19 02 85 c0 0f 84 52 fe ff ff 48 8d bb 80 0c 00 00 be ff ff ff ff e8 ea 9c 74 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
[   21.114432][  T266] RSP: 0018:ffffc90000bb7930 EFLAGS: 00010246
[   21.114795][  T266] RAX: 0000000000000000 RBX: ffff888005850000 RCX: 0000000000000001
[   21.115236][  T266] RDX: 0000000000000000 RSI: ffffffff9ea88ba1 RDI: ffffffff9e2555a0
[   21.115667][  T266] RBP: ffffc90000bb7a18 R08: ffff888005850008 R09: 0000000000000000
[   21.116113][  T266] R10: ffffc90000bb7a48 R11: ffffffff9f850068 R12: 1ffff92000176f2a
[   21.116554][  T266] R13: 00000000000005f0 R14: ffffc90000bb7a48 R15: ffffc90000bb7d40
[   21.116977][  T266] FS:  00007f5bb8a4b740(0000) GS:ffff88808eb71000(0000) knlGS:0000000000000000
[   21.117485][  T266] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   21.117846][  T266] CR2: 000055e64bd205e6 CR3: 0000000009a8a004 CR4: 0000000000772ef0
[   21.118285][  T266] PKRU: 55555554
[   21.118502][  T266] Call Trace:
[   21.119001][  T266]  <TASK>
[   21.119156][  T266]  ? __pfx_netif_set_mtu_ext+0x10/0x10
[   21.119462][  T266]  ? rcu_read_lock_any_held+0x43/0xb0
[   21.119745][  T266]  ? validate_chain+0x166/0x4d0
[   21.120041][  T266]  ? rcu_read_lock_any_held+0x43/0xb0
[   21.120333][  T266]  ? validate_chain+0x166/0x4d0
[   21.120630][  T266]  netif_set_mtu+0x88/0x100
[   21.120919][  T266]  ? __pfx_netif_set_mtu+0x10/0x10
[   21.121226][  T266]  ? rcu_is_watching+0x12/0xc0
[   21.121515][  T266]  dev_set_mtu+0xa0/0x150
[   21.121730][  T266]  dev_ifsioc+0xc6d/0x1610
[   21.122016][  T266]  ? __pfx_dev_ifsioc+0x10/0x10
[   21.122314][  T266]  ? __pfx___mutex_lock+0x10/0x10
[   21.122603][  T266]  ? find_held_lock+0x2b/0x80
[   21.122886][  T266]  ? dev_load+0x6a/0x180
[   21.123096][  T266]  ? __lock_release+0x5d/0x170
[   21.123394][  T266]  dev_ioctl+0x1cb/0xed0
[   21.123609][  T266]  sock_do_ioctl+0x16e/0x1e0
[   21.123896][  T266]  ? __pfx_sock_do_ioctl+0x10/0x10
[   21.124174][  T266]  ? __pmd_alloc+0x7a1/0x7f0
[   21.124465][  T266]  ? lock_vma_under_rcu+0x36c/0x6b0
[   21.124753][  T266]  ? __lock_release+0xa8/0x170
[   21.125043][  T266]  sock_ioctl+0x3b4/0x590
[   21.125265][  T266]  ? __pfx_sock_ioctl+0x10/0x10
[   21.125547][  T266]  ? find_held_lock+0x2b/0x80
[   21.125831][  T266]  ? exc_page_fault+0x5d/0xc0
[   21.126113][  T266]  ? __lock_release+0x5d/0x170
[   21.126408][  T266]  ? exc_page_fault+0x5d/0xc0
[   21.126695][  T266]  __x64_sys_ioctl+0x11f/0x1a0
[   21.126980][  T266]  do_syscall_64+0xc1/0x380
[   21.127277][  T266]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[   21.127630][  T266] RIP: 0033:0x7f5bb8b51e4b
[   21.127931][  T266] 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
[   21.128961][  T266] RSP: 002b:00007ffc5c096048 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
[   21.129407][  T266] RAX: ffffffffffffffda RBX: 00007ffc5c0963a8 RCX: 00007f5bb8b51e4b
[   21.129832][  T266] RDX: 00007ffc5c0960a0 RSI: 0000000000008922 RDI: 0000000000000007
[   21.130274][  T266] RBP: 00007ffc5c0963b8 R08: 1999999999999999 R09: 0000000000000000
[   21.130707][  T266] R10: 00007f5bb8becac0 R11: 0000000000000246 R12: 00007ffc5c097984
[   21.131139][  T266] R13: 000055e64bd0f8f0 R14: 00007ffc5c0960a0 R15: 000055e64bd1a8a2
[   21.131582][  T266]  </TASK>
[   21.131803][  T266] irq event stamp: 61961
[   21.132026][  T266] hardirqs last  enabled at (61969): [<ffffffff9b80820b>] __up_console_sem+0x6b/0x80
[   21.132532][  T266] hardirqs last disabled at (61978): [<ffffffff9b8081f0>] __up_console_sem+0x50/0x80
[   21.133025][  T266] softirqs last  enabled at (61710): [<ffffffff9b68af38>] handle_softirqs+0x358/0x620
[   21.133535][  T266] softirqs last disabled at (61705): [<ffffffff9b68b38a>] __irq_exit_rcu+0xfa/0x160
[   21.134024][  T266] ---[ end trace 0000000000000000 ]---