[   39.322407][  T548] br0: port 1(veth1) entered blocking state
[   39.322726][  T548] br0: port 1(veth1) entered disabled state
[   39.323046][  T548] veth1: entered allmulticast mode
[   39.326039][  T548] veth1: entered promiscuous mode
[   39.419701][  T551] br0: port 2(veth3) entered blocking state
[   39.420047][  T551] br0: port 2(veth3) entered disabled state
[   39.420397][  T551] veth3: entered allmulticast mode
[   39.422777][  T551] veth3: entered promiscuous mode
[   39.692096][  T316] br0: port 1(veth1) entered blocking state
[   39.692452][  T316] br0: port 1(veth1) entered forwarding state
[   39.849044][  T316] br0: port 2(veth3) entered blocking state
[   39.849381][  T316] br0: port 2(veth3) entered forwarding state
[   45.744155][  T575] 
[   45.744507][  T575] =============================
[   45.744690][  T575] WARNING: suspicious RCU usage
[   45.744866][  T575] 6.14.0-rc6-virtme #1 Not tainted
[   45.745042][  T575] -----------------------------
[   45.745211][  T575] ./include/net/net_namespace.h:418 suspicious rcu_dereference_check() usage!
[   45.745533][  T575] 
[   45.745533][  T575] other info that might help us debug this:
[   45.745533][  T575] 
[   45.745860][  T575] 
[   45.745860][  T575] rcu_scheduler_active = 2, debug_locks = 1
[   45.746114][  T575] 1 lock held by mausezahn/575:
[   45.746295][  T575]  #0: ffffffffa835b5c0 (rcu_read_lock_bh){....}-{1:3}, at: __dev_queue_xmit+0x1f0/0x18d0
[   45.746601][  T575] 
[   45.746601][  T575] stack backtrace:
[   45.746806][  T575] CPU: 2 UID: 0 PID: 575 Comm: mausezahn Not tainted 6.14.0-rc6-virtme #1
[   45.746811][  T575] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   45.746813][  T575] Call Trace:
[   45.746815][  T575]  <TASK>
[   45.746818][  T575]  dump_stack_lvl+0xb0/0xd0
[   45.746827][  T575]  lockdep_rcu_suspicious+0x1ea/0x280
[   45.746839][  T575]  dev_hard_start_xmit+0x2fc/0x3f0
[   45.746850][  T575]  __dev_queue_xmit+0xfaf/0x18d0
[   45.746864][  T575]  ? __pfx___dev_queue_xmit+0x10/0x10
[   45.746868][  T575]  ? packet_parse_headers+0x231/0x9c0
[   45.746877][  T575]  ? __pfx_sock_alloc_send_pskb+0x10/0x10
[   45.746884][  T575]  ? __pfx_packet_parse_headers+0x10/0x10
[   45.746889][  T575]  ? skb_copy_datagram_from_iter+0xe6/0x6f0
[   45.746895][  T575]  ? dev_get_by_index+0xb2/0x190
[   45.746908][  T575]  packet_snd+0xd0c/0x19d0
[   45.746919][  T575]  ? __lock_release+0x103/0x460
[   45.746923][  T575]  ? __might_fault+0x11b/0x170
[   45.746932][  T575]  ? __pfx_packet_snd+0x10/0x10
[   45.746934][  T575]  ? trace_lock_acquire+0x14c/0x1f0
[   45.746937][  T575]  ? __might_fault+0x11b/0x170
[   45.746944][  T575]  ? lock_acquire+0x32/0xc0
[   45.746950][  T575]  ? __might_fault+0x11b/0x170
[   45.746961][  T575]  __sys_sendto+0x3c3/0x450
[   45.746968][  T575]  ? __pfx___sys_sendto+0x10/0x10
[   45.746982][  T575]  ? sock_ioctl+0x3b6/0x590
[   45.746987][  T575]  ? _copy_to_user+0x5c/0x80
[   45.746997][  T575]  ? __pfx_put_timespec64+0x10/0x10
[   45.747007][  T575]  ? posix_cpu_clock_get+0xe1/0x240
[   45.747016][  T575]  ? __x64_sys_clock_gettime+0x17a/0x200
[   45.747020][  T575]  ? __pfx___x64_sys_clock_gettime+0x10/0x10
[   45.747028][  T575]  __x64_sys_sendto+0xe0/0x1c0
[   45.747032][  T575]  ? lockdep_hardirqs_on_prepare+0x275/0x410
[   45.747037][  T575]  do_syscall_64+0xc1/0x1d0
[   45.747046][  T575]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[   45.747052][  T575] RIP: 0033:0x7ff91997aa4a
[   45.747057][  T575] 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
[   45.747060][  T575] RSP: 002b:00007ffcd10041b8 EFLAGS: 00000246 ORIG_RAX: 000000000000002c
[   45.747064][  T575] RAX: ffffffffffffffda RBX: 00000000228b09d0 RCX: 00007ff91997aa4a
[   45.747067][  T575] RDX: 000000000000002a RSI: 00000000228b0c42 RDI: 0000000000000005
[   45.747069][  T575] RBP: 00000000228b0c42 R08: 00007ffcd10041c0 R09: 0000000000000014
[   45.747071][  T575] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
[   45.747072][  T575] R13: 000000000000002a R14: 00007ffcd10041c0 R15: 00007ffcd100429c
[   45.747088][  T575]  </TASK>
[   46.014643][  T585] br0: port 2(veth3) entered disabled state
[   46.186095][  T587] br0: port 1(veth1) entered disabled state
[   46.364963][  T589] veth3: left allmulticast mode
[   46.365284][  T589] veth3: left promiscuous mode
[   46.365638][  T589] br0: port 2(veth3) entered disabled state
[   46.367197][  T589] veth1: left allmulticast mode
[   46.367459][  T589] veth1: left promiscuous mode
[   46.368181][  T589] br0: port 1(veth1) entered disabled state