[   18.722970][  T308] GACT probability NOT on
[   18.857126][  T310] 
[   18.857427][  T310] =============================
[   18.857624][  T310] WARNING: suspicious RCU usage
[   18.857800][  T310] 6.14.0-rc6-virtme #1 Not tainted
[   18.858100][  T310] -----------------------------
[   18.858296][  T310] ./include/net/net_namespace.h:418 suspicious rcu_dereference_check() usage!
[   18.858572][  T310] 
[   18.858572][  T310] other info that might help us debug this:
[   18.858572][  T310] 
[   18.858872][  T310] 
[   18.858872][  T310] rcu_scheduler_active = 2, debug_locks = 1
[   18.859126][  T310] 1 lock held by mausezahn/310:
[   18.859323][  T310]  #0: ffffffff9db5b5c0 (rcu_read_lock_bh){....}-{1:3}, at: __dev_queue_xmit+0x1f0/0x18d0
[   18.859616][  T310] 
[   18.859616][  T310] stack backtrace:
[   18.859819][  T310] CPU: 2 UID: 0 PID: 310 Comm: mausezahn Not tainted 6.14.0-rc6-virtme #1
[   18.859823][  T310] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   18.859825][  T310] Call Trace:
[   18.859827][  T310]  <TASK>
[   18.859829][  T310]  dump_stack_lvl+0xb0/0xd0
[   18.859836][  T310]  lockdep_rcu_suspicious+0x1ea/0x280
[   18.859847][  T310]  dev_hard_start_xmit+0x2fc/0x3f0
[   18.859868][  T310]  __dev_queue_xmit+0xfaf/0x18d0
[   18.859883][  T310]  ? __pfx___dev_queue_xmit+0x10/0x10
[   18.859887][  T310]  ? packet_parse_headers+0x231/0x9c0
[   18.859896][  T310]  ? __pfx_sock_alloc_send_pskb+0x10/0x10
[   18.859902][  T310]  ? __pfx_packet_parse_headers+0x10/0x10
[   18.859907][  T310]  ? skb_copy_datagram_from_iter+0xe6/0x6f0
[   18.859912][  T310]  ? dev_get_by_index+0xb2/0x190
[   18.859923][  T310]  packet_snd+0xd0c/0x19d0
[   18.859934][  T310]  ? __lock_release+0x103/0x460
[   18.859938][  T310]  ? __might_fault+0x11b/0x170
[   18.859945][  T310]  ? __pfx_packet_snd+0x10/0x10
[   18.859947][  T310]  ? trace_lock_acquire+0x14c/0x1f0
[   18.859949][  T310]  ? __might_fault+0x11b/0x170
[   18.859956][  T310]  ? lock_acquire+0x32/0xc0
[   18.859962][  T310]  ? __might_fault+0x11b/0x170
[   18.859973][  T310]  __sys_sendto+0x3c3/0x450
[   18.859979][  T310]  ? __pfx___sys_sendto+0x10/0x10
[   18.859994][  T310]  ? sock_ioctl+0x3b6/0x590
[   18.860003][  T310]  ? __pfx___up_read+0x10/0x10
[   18.860012][  T310]  ? do_user_addr_fault+0x374/0xe30
[   18.860022][  T310]  ? do_user_addr_fault+0x374/0xe30
[   18.860029][  T310]  __x64_sys_sendto+0xe0/0x1c0
[   18.860033][  T310]  ? lockdep_hardirqs_on_prepare+0x275/0x410
[   18.860038][  T310]  do_syscall_64+0xc1/0x1d0
[   18.860046][  T310]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[   18.860050][  T310] RIP: 0033:0x7f8357c93a4a
[   18.860054][  T310] 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
[   18.860057][  T310] RSP: 002b:00007fffecd28c38 EFLAGS: 00000246 ORIG_RAX: 000000000000002c
[   18.860061][  T310] RAX: ffffffffffffffda RBX: 000000000acbe9d0 RCX: 00007f8357c93a4a
[   18.860063][  T310] RDX: 0000000000000062 RSI: 000000000acbe5c2 RDI: 0000000000000005
[   18.860065][  T310] RBP: 000000000acbe5c2 R08: 00007fffecd28c40 R09: 0000000000000014
[   18.860066][  T310] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
[   18.860068][  T310] R13: 0000000000000062 R14: 00007fffecd28c40 R15: 0000000000000000
[   18.860084][  T310]  </TASK>
[   25.318370][  T456] ip (456) used greatest stack depth: 23648 bytes left