[   13.730590][  T304] br1: port 1(veth1) entered blocking state
[   13.731277][  T304] br1: port 1(veth1) entered disabled state
[   13.731888][  T304] veth1: entered allmulticast mode
[   13.735507][  T304] veth1: entered promiscuous mode
[   13.822796][   T40] br1: port 1(veth1) entered blocking state
[   13.823200][   T40] br1: port 1(veth1) entered forwarding state
[   13.898560][  T307] br1: port 2(veth2) entered blocking state
[   13.898895][  T307] br1: port 2(veth2) entered disabled state
[   13.899189][  T307] veth2: entered allmulticast mode
[   13.901150][  T307] veth2: entered promiscuous mode
[   13.909086][  T307] ip (307) used greatest stack depth: 24368 bytes left
[   14.003615][   T38] br1: port 2(veth2) entered blocking state
[   14.003934][   T38] br1: port 2(veth2) entered forwarding state
[   22.379584][  T352] 
[   22.379907][  T352] =============================
[   22.380087][  T352] WARNING: suspicious RCU usage
[   22.380416][  T352] 6.14.0-rc6-virtme #1 Not tainted
[   22.380585][  T352] -----------------------------
[   22.380776][  T352] ./include/net/net_namespace.h:418 suspicious rcu_dereference_check() usage!
[   22.381092][  T352] 
[   22.381092][  T352] other info that might help us debug this:
[   22.381092][  T352] 
[   22.381418][  T352] 
[   22.381418][  T352] rcu_scheduler_active = 2, debug_locks = 1
[   22.381688][  T352] 1 lock held by mausezahn/352:
[   22.381860][  T352]  #0: ffffffffb9b5b5c0 (rcu_read_lock_bh){....}-{1:3}, at: __dev_queue_xmit+0x1f0/0x18d0
[   22.382179][  T352] 
[   22.382179][  T352] stack backtrace:
[   22.382390][  T352] CPU: 3 UID: 0 PID: 352 Comm: mausezahn Not tainted 6.14.0-rc6-virtme #1
[   22.382394][  T352] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   22.382396][  T352] Call Trace:
[   22.382397][  T352]  <TASK>
[   22.382400][  T352]  dump_stack_lvl+0xb0/0xd0
[   22.382407][  T352]  lockdep_rcu_suspicious+0x1ea/0x280
[   22.382418][  T352]  dev_hard_start_xmit+0x2fc/0x3f0
[   22.382428][  T352]  __dev_queue_xmit+0xfaf/0x18d0
[   22.382442][  T352]  ? __pfx___dev_queue_xmit+0x10/0x10
[   22.382446][  T352]  ? packet_parse_headers+0x231/0x9c0
[   22.382455][  T352]  ? __pfx_sock_alloc_send_pskb+0x10/0x10
[   22.382461][  T352]  ? __pfx_packet_parse_headers+0x10/0x10
[   22.382465][  T352]  ? skb_copy_datagram_from_iter+0xe6/0x6f0
[   22.382471][  T352]  ? dev_get_by_index+0xb2/0x190
[   22.382482][  T352]  packet_snd+0xd0c/0x19d0
[   22.382493][  T352]  ? __lock_release+0x103/0x460
[   22.382497][  T352]  ? __might_fault+0x11b/0x170
[   22.382504][  T352]  ? __pfx_packet_snd+0x10/0x10
[   22.382506][  T352]  ? trace_lock_acquire+0x14c/0x1f0
[   22.382508][  T352]  ? __might_fault+0x11b/0x170
[   22.382516][  T352]  ? lock_acquire+0x32/0xc0
[   22.382522][  T352]  ? __might_fault+0x11b/0x170
[   22.382533][  T352]  __sys_sendto+0x3c3/0x450
[   22.382539][  T352]  ? __pfx___sys_sendto+0x10/0x10
[   22.382554][  T352]  ? sock_ioctl+0x3b6/0x590
[   22.382563][  T352]  ? __pfx___up_read+0x10/0x10
[   22.382571][  T352]  ? do_user_addr_fault+0x374/0xe30
[   22.382581][  T352]  ? do_user_addr_fault+0x374/0xe30
[   22.382588][  T352]  __x64_sys_sendto+0xe0/0x1c0
[   22.382592][  T352]  ? lockdep_hardirqs_on_prepare+0x275/0x410
[   22.382598][  T352]  do_syscall_64+0xc1/0x1d0
[   22.382605][  T352]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[   22.382610][  T352] RIP: 0033:0x7f0bf166da4a
[   22.382615][  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
[   22.382617][  T352] RSP: 002b:00007ffcd0b16788 EFLAGS: 00000246 ORIG_RAX: 000000000000002c
[   22.382621][  T352] RAX: ffffffffffffffda RBX: 000000002e5539d0 RCX: 00007f0bf166da4a
[   22.382623][  T352] RDX: 000000000000008e RSI: 000000002e553cf2 RDI: 0000000000000005
[   22.382625][  T352] RBP: 000000002e553cf2 R08: 00007ffcd0b16790 R09: 0000000000000014
[   22.382627][  T352] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
[   22.382629][  T352] R13: 000000000000008e R14: 00007ffcd0b16790 R15: 0000000000000000
[   22.382647][  T352]  </TASK>
[   41.212549][  T666] br1: port 2(veth2) entered disabled state
[   41.223124][  T666] ip (666) used greatest stack depth: 23648 bytes left
[   41.311934][  T667] veth2: left allmulticast mode
[   41.312211][  T667] veth2: left promiscuous mode
[   41.312563][  T667] br1: port 2(veth2) entered disabled state
[   41.399949][  T668] br1: port 1(veth1) entered disabled state
[   41.495307][  T669] veth1: left allmulticast mode
[   41.495633][  T669] veth1: left promiscuous mode
[   41.496018][  T669] br1: port 1(veth1) entered disabled state