[   11.717859][  T281] veth0: entered allmulticast mode
[   11.718931][  T281] veth1: entered allmulticast mode
[   11.719274][  T281] veth2: entered allmulticast mode
[   11.719590][  T281] veth3: entered allmulticast mode
[   23.486936][  T369] GACT probability NOT on
[   23.655080][  T372] 
[   23.655395][  T372] =============================
[   23.655580][  T372] WARNING: suspicious RCU usage
[   23.655952][  T372] 6.14.0-rc6-virtme #1 Not tainted
[   23.656131][  T372] -----------------------------
[   23.656299][  T372] ./include/net/net_namespace.h:418 suspicious rcu_dereference_check() usage!
[   23.656591][  T372] 
[   23.656591][  T372] other info that might help us debug this:
[   23.656591][  T372] 
[   23.656913][  T372] 
[   23.656913][  T372] rcu_scheduler_active = 2, debug_locks = 1
[   23.657166][  T372] 1 lock held by mausezahn/372:
[   23.657342][  T372]  #0: ffffffff8735b5c0 (rcu_read_lock_bh){....}-{1:3}, at: __dev_queue_xmit+0x1f0/0x18d0
[   23.657656][  T372] 
[   23.657656][  T372] stack backtrace:
[   23.657863][  T372] CPU: 0 UID: 0 PID: 372 Comm: mausezahn Not tainted 6.14.0-rc6-virtme #1
[   23.657867][  T372] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   23.657869][  T372] Call Trace:
[   23.657872][  T372]  <TASK>
[   23.657875][  T372]  dump_stack_lvl+0xb0/0xd0
[   23.657883][  T372]  lockdep_rcu_suspicious+0x1ea/0x280
[   23.657895][  T372]  dev_hard_start_xmit+0x2fc/0x3f0
[   23.657905][  T372]  __dev_queue_xmit+0xfaf/0x18d0
[   23.657920][  T372]  ? __pfx___dev_queue_xmit+0x10/0x10
[   23.657924][  T372]  ? packet_parse_headers+0x231/0x9c0
[   23.657933][  T372]  ? __pfx_sock_alloc_send_pskb+0x10/0x10
[   23.657940][  T372]  ? __pfx_packet_parse_headers+0x10/0x10
[   23.657945][  T372]  ? skb_copy_datagram_from_iter+0xe6/0x6f0
[   23.657951][  T372]  ? dev_get_by_index+0xb2/0x190
[   23.657963][  T372]  packet_snd+0xd0c/0x19d0
[   23.657974][  T372]  ? __lock_release+0x103/0x460
[   23.657978][  T372]  ? __might_fault+0x11b/0x170
[   23.657987][  T372]  ? __pfx_packet_snd+0x10/0x10
[   23.657989][  T372]  ? trace_lock_acquire+0x14c/0x1f0
[   23.657991][  T372]  ? __might_fault+0x11b/0x170
[   23.657998][  T372]  ? lock_acquire+0x32/0xc0
[   23.658004][  T372]  ? __might_fault+0x11b/0x170
[   23.658015][  T372]  __sys_sendto+0x3c3/0x450
[   23.658022][  T372]  ? __pfx___sys_sendto+0x10/0x10
[   23.658036][  T372]  ? sock_ioctl+0x3b6/0x590
[   23.658047][  T372]  ? __pfx___up_read+0x10/0x10
[   23.658057][  T372]  ? do_user_addr_fault+0x374/0xe30
[   23.658069][  T372]  ? do_user_addr_fault+0x374/0xe30
[   23.658076][  T372]  __x64_sys_sendto+0xe0/0x1c0
[   23.658080][  T372]  ? lockdep_hardirqs_on_prepare+0x275/0x410
[   23.658085][  T372]  do_syscall_64+0xc1/0x1d0
[   23.658093][  T372]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[   23.658102][  T372] RIP: 0033:0x7f721885fa4a
[   23.658107][  T372] 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
[   23.658110][  T372] RSP: 002b:00007ffe59caff78 EFLAGS: 00000246 ORIG_RAX: 000000000000002c
[   23.658114][  T372] RAX: ffffffffffffffda RBX: 000000002d0189d0 RCX: 00007f721885fa4a
[   23.658116][  T372] RDX: 000000000000002a RSI: 000000002d018c92 RDI: 0000000000000005
[   23.658118][  T372] RBP: 000000002d018c92 R08: 00007ffe59caff80 R09: 0000000000000014
[   23.658120][  T372] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
[   23.658121][  T372] R13: 000000000000002a R14: 00007ffe59caff80 R15: 0000000000000000
[   23.658138][  T372]  </TASK>
[   29.156559][  T486] ip (486) used greatest stack depth: 23664 bytes left
[   31.188181][  T281] veth0: left allmulticast mode
[   31.195454][  T281] veth1: left allmulticast mode
[   31.195887][  T281] veth2: left allmulticast mode
[   31.196130][  T281] veth3: left allmulticast mode