[   39.678766][  T574] br0: port 1(veth1) entered blocking state
[   39.679613][  T574] br0: port 1(veth1) entered disabled state
[   39.679900][  T574] veth1: entered allmulticast mode
[   39.681998][  T574] veth1: entered promiscuous mode
[   39.762962][  T576] br0: port 2(veth3) entered blocking state
[   39.763252][  T576] br0: port 2(veth3) entered disabled state
[   39.763531][  T576] veth3: entered allmulticast mode
[   39.765429][  T576] veth3: entered promiscuous mode
[   40.007329][  T398] br0: port 1(veth1) entered blocking state
[   40.007986][  T398] br0: port 1(veth1) entered forwarding state
[   40.167500][  T398] br0: port 2(veth3) entered blocking state
[   40.167788][  T398] br0: port 2(veth3) entered forwarding state
[   46.060542][  T599] 
[   46.060924][  T599] =============================
[   46.061260][  T599] WARNING: suspicious RCU usage
[   46.061531][  T599] 6.14.0-rc6-virtme #1 Not tainted
[   46.061797][  T599] -----------------------------
[   46.062095][  T599] ./include/net/net_namespace.h:418 suspicious rcu_dereference_check() usage!
[   46.062580][  T599] 
[   46.062580][  T599] other info that might help us debug this:
[   46.062580][  T599] 
[   46.063085][  T599] 
[   46.063085][  T599] rcu_scheduler_active = 2, debug_locks = 1
[   46.063332][  T599] 1 lock held by mausezahn/599:
[   46.063503][  T599]  #0: ffffffff9a75b5c0 (rcu_read_lock_bh){....}-{1:3}, at: __dev_queue_xmit+0x1f0/0x18d0
[   46.063821][  T599] 
[   46.063821][  T599] stack backtrace:
[   46.064024][  T599] CPU: 2 UID: 0 PID: 599 Comm: mausezahn Not tainted 6.14.0-rc6-virtme #1
[   46.064029][  T599] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   46.064031][  T599] Call Trace:
[   46.064033][  T599]  <TASK>
[   46.064036][  T599]  dump_stack_lvl+0xb0/0xd0
[   46.064043][  T599]  lockdep_rcu_suspicious+0x1ea/0x280
[   46.064056][  T599]  dev_hard_start_xmit+0x2fc/0x3f0
[   46.064066][  T599]  __dev_queue_xmit+0xfaf/0x18d0
[   46.064081][  T599]  ? __pfx___dev_queue_xmit+0x10/0x10
[   46.064085][  T599]  ? packet_parse_headers+0x231/0x9c0
[   46.064094][  T599]  ? __pfx_sock_alloc_send_pskb+0x10/0x10
[   46.064100][  T599]  ? __pfx_packet_parse_headers+0x10/0x10
[   46.064105][  T599]  ? skb_copy_datagram_from_iter+0xe6/0x6f0
[   46.064110][  T599]  ? dev_get_by_index+0xb2/0x190
[   46.064121][  T599]  packet_snd+0xd0c/0x19d0
[   46.064133][  T599]  ? __lock_release+0x103/0x460
[   46.064136][  T599]  ? __might_fault+0x11b/0x170
[   46.064144][  T599]  ? __pfx_packet_snd+0x10/0x10
[   46.064146][  T599]  ? trace_lock_acquire+0x14c/0x1f0
[   46.064149][  T599]  ? __might_fault+0x11b/0x170
[   46.064156][  T599]  ? lock_acquire+0x32/0xc0
[   46.064162][  T599]  ? __might_fault+0x11b/0x170
[   46.064173][  T599]  __sys_sendto+0x3c3/0x450
[   46.064179][  T599]  ? __pfx___sys_sendto+0x10/0x10
[   46.064194][  T599]  ? sock_ioctl+0x3b6/0x590
[   46.064199][  T599]  ? _copy_to_user+0x5c/0x80
[   46.064207][  T599]  ? __pfx_put_timespec64+0x10/0x10
[   46.064216][  T599]  ? posix_cpu_clock_get+0xe1/0x240
[   46.064224][  T599]  ? __x64_sys_clock_gettime+0x17a/0x200
[   46.064229][  T599]  ? __pfx___x64_sys_clock_gettime+0x10/0x10
[   46.064237][  T599]  __x64_sys_sendto+0xe0/0x1c0
[   46.064241][  T599]  ? lockdep_hardirqs_on_prepare+0x275/0x410
[   46.064246][  T599]  do_syscall_64+0xc1/0x1d0
[   46.064254][  T599]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[   46.064258][  T599] RIP: 0033:0x7f67acf34a4a
[   46.064263][  T599] 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
[   46.064267][  T599] RSP: 002b:00007fff9f549238 EFLAGS: 00000246 ORIG_RAX: 000000000000002c
[   46.064271][  T599] RAX: ffffffffffffffda RBX: 000000000916f9d0 RCX: 00007f67acf34a4a
[   46.064273][  T599] RDX: 000000000000002a RSI: 000000000916fc42 RDI: 0000000000000005
[   46.064275][  T599] RBP: 000000000916fc42 R08: 00007fff9f549240 R09: 0000000000000014
[   46.064277][  T599] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
[   46.064279][  T599] R13: 000000000000002a R14: 00007fff9f549240 R15: 00007fff9f54931c
[   46.064295][  T599]  </TASK>
[   46.341970][  T609] br0: port 2(veth3) entered disabled state
[   46.519090][  T611] br0: port 1(veth1) entered disabled state
[   46.695028][  T613] veth3: left allmulticast mode
[   46.695334][  T613] veth3: left promiscuous mode
[   46.695707][  T613] br0: port 2(veth3) entered disabled state
[   46.698024][  T613] veth1: left allmulticast mode
[   46.698309][  T613] veth1: left promiscuous mode
[   46.698661][  T613] br0: port 1(veth1) entered disabled state