[    9.654986][  T226] dirname (226) used greatest stack depth: 24528 bytes left
[   12.577349][  T297] ip (297) used greatest stack depth: 23952 bytes left
[   20.926085][  T350] GACT probability NOT on
[   21.073126][  T352] 
[   21.073389][  T352] =============================
[   21.073765][  T352] WARNING: suspicious RCU usage
[   21.073924][  T352] 6.14.0-rc6-virtme #1 Not tainted
[   21.074102][  T352] -----------------------------
[   21.074257][  T352] ./include/net/net_namespace.h:418 suspicious rcu_dereference_check() usage!
[   21.074514][  T352] 
[   21.074514][  T352] other info that might help us debug this:
[   21.074514][  T352] 
[   21.074813][  T352] 
[   21.074813][  T352] rcu_scheduler_active = 2, debug_locks = 1
[   21.075051][  T352] 1 lock held by mausezahn/352:
[   21.075208][  T352]  #0: ffffffff86d5b5c0 (rcu_read_lock_bh){....}-{1:3}, at: __dev_queue_xmit+0x1f0/0x18d0
[   21.075490][  T352] 
[   21.075490][  T352] stack backtrace:
[   21.075679][  T352] CPU: 0 UID: 0 PID: 352 Comm: mausezahn Not tainted 6.14.0-rc6-virtme #1
[   21.075683][  T352] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   21.075685][  T352] Call Trace:
[   21.075687][  T352]  <TASK>
[   21.075690][  T352]  dump_stack_lvl+0xb0/0xd0
[   21.075709][  T352]  lockdep_rcu_suspicious+0x1ea/0x280
[   21.075720][  T352]  dev_hard_start_xmit+0x2fc/0x3f0
[   21.075730][  T352]  __dev_queue_xmit+0xfaf/0x18d0
[   21.075744][  T352]  ? __pfx___dev_queue_xmit+0x10/0x10
[   21.075748][  T352]  ? packet_parse_headers+0x231/0x9c0
[   21.075757][  T352]  ? __pfx_sock_alloc_send_pskb+0x10/0x10
[   21.075762][  T352]  ? __pfx_packet_parse_headers+0x10/0x10
[   21.075767][  T352]  ? skb_copy_datagram_from_iter+0xe6/0x6f0
[   21.075772][  T352]  ? dev_get_by_index+0xb2/0x190
[   21.075783][  T352]  packet_snd+0xd0c/0x19d0
[   21.075794][  T352]  ? __lock_release+0x103/0x460
[   21.075798][  T352]  ? __might_fault+0x11b/0x170
[   21.075805][  T352]  ? __pfx_packet_snd+0x10/0x10
[   21.075807][  T352]  ? trace_lock_acquire+0x14c/0x1f0
[   21.075809][  T352]  ? __might_fault+0x11b/0x170
[   21.075816][  T352]  ? lock_acquire+0x32/0xc0
[   21.075822][  T352]  ? __might_fault+0x11b/0x170
[   21.075833][  T352]  __sys_sendto+0x3c3/0x450
[   21.075839][  T352]  ? __pfx___sys_sendto+0x10/0x10
[   21.075853][  T352]  ? sock_ioctl+0x3b6/0x590
[   21.075863][  T352]  ? __pfx___up_read+0x10/0x10
[   21.075871][  T352]  ? do_user_addr_fault+0x374/0xe30
[   21.075882][  T352]  ? do_user_addr_fault+0x374/0xe30
[   21.075889][  T352]  __x64_sys_sendto+0xe0/0x1c0
[   21.075893][  T352]  ? lockdep_hardirqs_on_prepare+0x275/0x410
[   21.075898][  T352]  do_syscall_64+0xc1/0x1d0
[   21.075905][  T352]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[   21.075910][  T352] RIP: 0033:0x7fdecfe9aa4a
[   21.075915][  T352] Code: d8 64 89 02 48 c7 c0 ff ff ff ff eb b8 0f 1f 00 f3 0f 1e fa 41 89 ca 64 8b 04 25 18 00 00 00 85 c0 75 15 b8 2c 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 7e c3 0f 1f 44 00 00 41 54 48 83 ec 30 44 89
[   21.075918][  T352] RSP: 002b:00007ffeaa21d7b8 EFLAGS: 00000246 ORIG_RAX: 000000000000002c
[   21.075921][  T352] RAX: ffffffffffffffda RBX: 000000003ed1f9d0 RCX: 00007fdecfe9aa4a
[   21.075924][  T352] RDX: 0000000000000062 RSI: 000000003ed1f5c2 RDI: 0000000000000005
[   21.075925][  T352] RBP: 000000003ed1f5c2 R08: 00007ffeaa21d7c0 R09: 0000000000000014
[   21.075927][  T352] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
[   21.075929][  T352] R13: 0000000000000062 R14: 00007ffeaa21d7c0 R15: 0000000000000000
[   21.075945][  T352]  </TASK>