[   11.640247][  T277] br0: port 1(veth1) entered blocking state
[   11.640786][  T277] br0: port 1(veth1) entered disabled state
[   11.641295][  T277] veth1: entered allmulticast mode
[   11.643806][  T277] veth1: entered promiscuous mode
[   11.714913][  T279] br0: port 2(veth3) entered blocking state
[   11.716138][  T279] br0: port 2(veth3) entered disabled state
[   11.716423][  T279] veth3: entered allmulticast mode
[   11.718379][  T279] veth3: entered promiscuous mode
[   11.950377][   T38] br0: port 1(veth1) entered blocking state
[   11.950791][   T38] br0: port 1(veth1) entered forwarding state
[   12.095804][   T46] br0: port 2(veth3) entered blocking state
[   12.096147][   T46] br0: port 2(veth3) entered forwarding state
[   18.023139][  T302] 
[   18.023476][  T302] =============================
[   18.023725][  T302] WARNING: suspicious RCU usage
[   18.024016][  T302] 6.14.0-rc6-virtme #1 Not tainted
[   18.024521][  T302] -----------------------------
[   18.024780][  T302] ./include/net/net_namespace.h:418 suspicious rcu_dereference_check() usage!
[   18.025220][  T302] 
[   18.025220][  T302] other info that might help us debug this:
[   18.025220][  T302] 
[   18.025692][  T302] 
[   18.025692][  T302] rcu_scheduler_active = 2, debug_locks = 1
[   18.026059][  T302] 1 lock held by mausezahn/302:
[   18.026330][  T302]  #0: ffffffffb355b5c0 (rcu_read_lock_bh){....}-{1:3}, at: __dev_queue_xmit+0x1f0/0x18d0
[   18.026845][  T302] 
[   18.026845][  T302] stack backtrace:
[   18.027158][  T302] CPU: 1 UID: 0 PID: 302 Comm: mausezahn Not tainted 6.14.0-rc6-virtme #1
[   18.027165][  T302] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   18.027168][  T302] Call Trace:
[   18.027170][  T302]  <TASK>
[   18.027174][  T302]  dump_stack_lvl+0xb0/0xd0
[   18.027185][  T302]  lockdep_rcu_suspicious+0x1ea/0x280
[   18.027202][  T302]  dev_hard_start_xmit+0x2fc/0x3f0
[   18.027222][  T302]  __dev_queue_xmit+0xfaf/0x18d0
[   18.027248][  T302]  ? __pfx___dev_queue_xmit+0x10/0x10
[   18.027255][  T302]  ? packet_parse_headers+0x231/0x9c0
[   18.027267][  T302]  ? lockdep_hardirqs_on_prepare+0x275/0x410
[   18.027280][  T302]  ? __pfx_packet_parse_headers+0x10/0x10
[   18.027288][  T302]  ? skb_copy_datagram_from_iter+0xe6/0x6f0
[   18.027313][  T302]  packet_snd+0xd0c/0x19d0
[   18.027335][  T302]  ? __lock_release+0x103/0x460
[   18.027340][  T302]  ? __might_fault+0x11b/0x170
[   18.027351][  T302]  ? __pfx_packet_snd+0x10/0x10
[   18.027355][  T302]  ? trace_lock_acquire+0x14c/0x1f0
[   18.027359][  T302]  ? __might_fault+0x11b/0x170
[   18.027372][  T302]  ? lock_acquire+0x32/0xc0
[   18.027384][  T302]  ? __might_fault+0x11b/0x170
[   18.027405][  T302]  __sys_sendto+0x3c3/0x450
[   18.027414][  T302]  ? __pfx___sys_sendto+0x10/0x10
[   18.027441][  T302]  ? sock_ioctl+0x3b6/0x590
[   18.027448][  T302]  ? _copy_to_user+0x5c/0x80
[   18.027462][  T302]  ? __pfx_put_timespec64+0x10/0x10
[   18.027474][  T302]  ? posix_cpu_clock_get+0xe1/0x240
[   18.027489][  T302]  ? __x64_sys_clock_gettime+0x17a/0x200
[   18.027497][  T302]  ? __pfx___x64_sys_clock_gettime+0x10/0x10
[   18.027509][  T302]  __x64_sys_sendto+0xe0/0x1c0
[   18.027516][  T302]  ? lockdep_hardirqs_on_prepare+0x275/0x410
[   18.027524][  T302]  do_syscall_64+0xc1/0x1d0
[   18.027535][  T302]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[   18.027543][  T302] RIP: 0033:0x7ff711e13a4a
[   18.027549][  T302] 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
[   18.027553][  T302] RSP: 002b:00007ffcd5735c18 EFLAGS: 00000246 ORIG_RAX: 000000000000002c
[   18.027559][  T302] RAX: ffffffffffffffda RBX: 000000001f23d9d0 RCX: 00007ff711e13a4a
[   18.027562][  T302] RDX: 000000000000002a RSI: 000000001f23dc42 RDI: 0000000000000005
[   18.027566][  T302] RBP: 000000001f23dc42 R08: 00007ffcd5735c20 R09: 0000000000000014
[   18.027568][  T302] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
[   18.027571][  T302] R13: 000000000000002a R14: 00007ffcd5735c20 R15: 00007ffcd5735cfc
[   18.027600][  T302]  </TASK>
[   18.276394][  T312] br0: port 2(veth3) entered disabled state
[   18.284981][  T312] ip (312) used greatest stack depth: 23776 bytes left
[   18.432042][  T314] br0: port 1(veth1) entered disabled state
[   18.613624][  T316] veth3: left allmulticast mode
[   18.613905][  T316] veth3: left promiscuous mode
[   18.614343][  T316] br0: port 2(veth3) entered disabled state
[   18.616171][  T316] veth1: left allmulticast mode
[   18.616542][  T316] veth1: left promiscuous mode
[   18.616959][  T316] br0: port 1(veth1) entered disabled state