[   11.185107][  T250] ip (250) used greatest stack depth: 23888 bytes left
[   12.375734][  T276] br0: port 1(veth1) entered blocking state
[   12.376512][  T276] br0: port 1(veth1) entered disabled state
[   12.376950][  T276] veth1: entered allmulticast mode
[   12.379960][  T276] veth1: entered promiscuous mode
[   12.474507][  T278] br0: port 2(veth3) entered blocking state
[   12.474964][  T278] br0: port 2(veth3) entered disabled state
[   12.475395][  T278] veth3: entered allmulticast mode
[   12.477439][  T278] veth3: entered promiscuous mode
[   12.720470][   T40] br0: port 1(veth1) entered blocking state
[   12.720947][   T40] br0: port 1(veth1) entered forwarding state
[   12.882499][   T58] br0: port 2(veth3) entered blocking state
[   12.882832][   T58] br0: port 2(veth3) entered forwarding state
[   18.746727][  T301] 
[   18.747073][  T301] =============================
[   18.747438][  T301] WARNING: suspicious RCU usage
[   18.747610][  T301] 6.14.0-rc6-virtme #1 Not tainted
[   18.747778][  T301] -----------------------------
[   18.747956][  T301] ./include/net/net_namespace.h:418 suspicious rcu_dereference_check() usage!
[   18.748234][  T301] 
[   18.748234][  T301] other info that might help us debug this:
[   18.748234][  T301] 
[   18.748541][  T301] 
[   18.748541][  T301] rcu_scheduler_active = 2, debug_locks = 1
[   18.748780][  T301] 1 lock held by mausezahn/301:
[   18.748965][  T301]  #0: ffffffff8b15b5c0 (rcu_read_lock_bh){....}-{1:3}, at: __dev_queue_xmit+0x1f0/0x18d0
[   18.749268][  T301] 
[   18.749268][  T301] stack backtrace:
[   18.749468][  T301] CPU: 2 UID: 0 PID: 301 Comm: mausezahn Not tainted 6.14.0-rc6-virtme #1
[   18.749473][  T301] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   18.749475][  T301] Call Trace:
[   18.749477][  T301]  <TASK>
[   18.749480][  T301]  dump_stack_lvl+0xb0/0xd0
[   18.749489][  T301]  lockdep_rcu_suspicious+0x1ea/0x280
[   18.749501][  T301]  dev_hard_start_xmit+0x2fc/0x3f0
[   18.749511][  T301]  __dev_queue_xmit+0xfaf/0x18d0
[   18.749525][  T301]  ? __pfx___dev_queue_xmit+0x10/0x10
[   18.749530][  T301]  ? packet_parse_headers+0x231/0x9c0
[   18.749539][  T301]  ? __pfx_sock_alloc_send_pskb+0x10/0x10
[   18.749546][  T301]  ? __pfx_packet_parse_headers+0x10/0x10
[   18.749551][  T301]  ? skb_copy_datagram_from_iter+0xe6/0x6f0
[   18.749557][  T301]  ? dev_get_by_index+0xb2/0x190
[   18.749569][  T301]  packet_snd+0xd0c/0x19d0
[   18.749580][  T301]  ? __lock_release+0x103/0x460
[   18.749585][  T301]  ? __might_fault+0x11b/0x170
[   18.749593][  T301]  ? __pfx_packet_snd+0x10/0x10
[   18.749595][  T301]  ? trace_lock_acquire+0x14c/0x1f0
[   18.749597][  T301]  ? __might_fault+0x11b/0x170
[   18.749604][  T301]  ? lock_acquire+0x32/0xc0
[   18.749611][  T301]  ? __might_fault+0x11b/0x170
[   18.749622][  T301]  __sys_sendto+0x3c3/0x450
[   18.749629][  T301]  ? __pfx___sys_sendto+0x10/0x10
[   18.749643][  T301]  ? sock_ioctl+0x3b6/0x590
[   18.749648][  T301]  ? _copy_to_user+0x5c/0x80
[   18.749658][  T301]  ? __pfx_put_timespec64+0x10/0x10
[   18.749668][  T301]  ? posix_cpu_clock_get+0xe1/0x240
[   18.749677][  T301]  ? __x64_sys_clock_gettime+0x17a/0x200
[   18.749682][  T301]  ? __pfx___x64_sys_clock_gettime+0x10/0x10
[   18.749690][  T301]  __x64_sys_sendto+0xe0/0x1c0
[   18.749693][  T301]  ? lockdep_hardirqs_on_prepare+0x275/0x410
[   18.749699][  T301]  do_syscall_64+0xc1/0x1d0
[   18.749709][  T301]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[   18.749715][  T301] RIP: 0033:0x7fc2cc767a4a
[   18.749720][  T301] 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
[   18.749723][  T301] RSP: 002b:00007ffe02e731f8 EFLAGS: 00000246 ORIG_RAX: 000000000000002c
[   18.749727][  T301] RAX: ffffffffffffffda RBX: 00000000228169d0 RCX: 00007fc2cc767a4a
[   18.749729][  T301] RDX: 000000000000002a RSI: 0000000022816c42 RDI: 0000000000000005
[   18.749731][  T301] RBP: 0000000022816c42 R08: 00007ffe02e73200 R09: 0000000000000014
[   18.749733][  T301] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
[   18.749735][  T301] R13: 000000000000002a R14: 00007ffe02e73200 R15: 00007ffe02e732dc
[   18.749751][  T301]  </TASK>
[   19.001190][  T311] br0: port 2(veth3) entered disabled state
[   19.160919][  T313] br0: port 1(veth1) entered disabled state
[   19.335461][  T315] veth3: left allmulticast mode
[   19.336122][  T315] veth3: left promiscuous mode
[   19.336614][  T315] br0: port 2(veth3) entered disabled state
[   19.339586][  T315] veth1: left allmulticast mode
[   19.340190][  T315] veth1: left promiscuous mode
[   19.340674][  T315] br0: port 1(veth1) entered disabled state