[   11.060489][  T276] br0: port 1(veth1) entered blocking state
[   11.060933][  T276] br0: port 1(veth1) entered disabled state
[   11.061507][  T276] veth1: entered allmulticast mode
[   11.063566][  T276] veth1: entered promiscuous mode
[   11.150046][  T278] br0: port 2(veth3) entered blocking state
[   11.150473][  T278] br0: port 2(veth3) entered disabled state
[   11.150786][  T278] veth3: entered allmulticast mode
[   11.152968][  T278] veth3: entered promiscuous mode
[   11.380527][   T60] br0: port 1(veth1) entered blocking state
[   11.380912][   T60] br0: port 1(veth1) entered forwarding state
[   11.522711][   T60] br0: port 2(veth3) entered blocking state
[   11.523008][   T60] br0: port 2(veth3) entered forwarding state
[   17.406241][  T302] 
[   17.406473][  T302] =============================
[   17.406640][  T302] WARNING: suspicious RCU usage
[   17.406968][  T302] 6.14.0-rc6-virtme #1 Not tainted
[   17.407154][  T302] -----------------------------
[   17.407322][  T302] ./include/net/net_namespace.h:418 suspicious rcu_dereference_check() usage!
[   17.407591][  T302] 
[   17.407591][  T302] other info that might help us debug this:
[   17.407591][  T302] 
[   17.407907][  T302] 
[   17.407907][  T302] rcu_scheduler_active = 2, debug_locks = 1
[   17.408147][  T302] 1 lock held by mausezahn/302:
[   17.408302][  T302]  #0: ffffffffa735b5c0 (rcu_read_lock_bh){....}-{1:3}, at: __dev_queue_xmit+0x1f0/0x18d0
[   17.408598][  T302] 
[   17.408598][  T302] stack backtrace:
[   17.408789][  T302] CPU: 3 UID: 0 PID: 302 Comm: mausezahn Not tainted 6.14.0-rc6-virtme #1
[   17.408793][  T302] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   17.408795][  T302] Call Trace:
[   17.408797][  T302]  <TASK>
[   17.408799][  T302]  dump_stack_lvl+0xb0/0xd0
[   17.408806][  T302]  lockdep_rcu_suspicious+0x1ea/0x280
[   17.408817][  T302]  dev_hard_start_xmit+0x2fc/0x3f0
[   17.408827][  T302]  __dev_queue_xmit+0xfaf/0x18d0
[   17.408841][  T302]  ? __pfx___dev_queue_xmit+0x10/0x10
[   17.408845][  T302]  ? packet_parse_headers+0x231/0x9c0
[   17.408854][  T302]  ? __pfx_sock_alloc_send_pskb+0x10/0x10
[   17.408859][  T302]  ? __pfx_packet_parse_headers+0x10/0x10
[   17.408864][  T302]  ? skb_copy_datagram_from_iter+0xe6/0x6f0
[   17.408869][  T302]  ? dev_get_by_index+0xb2/0x190
[   17.408880][  T302]  packet_snd+0xd0c/0x19d0
[   17.408892][  T302]  ? __lock_release+0x103/0x460
[   17.408896][  T302]  ? __might_fault+0x11b/0x170
[   17.408903][  T302]  ? __pfx_packet_snd+0x10/0x10
[   17.408905][  T302]  ? trace_lock_acquire+0x14c/0x1f0
[   17.408907][  T302]  ? __might_fault+0x11b/0x170
[   17.408914][  T302]  ? lock_acquire+0x32/0xc0
[   17.408921][  T302]  ? __might_fault+0x11b/0x170
[   17.408932][  T302]  __sys_sendto+0x3c3/0x450
[   17.408937][  T302]  ? __pfx___sys_sendto+0x10/0x10
[   17.408952][  T302]  ? sock_ioctl+0x3b6/0x590
[   17.408957][  T302]  ? _copy_to_user+0x5c/0x80
[   17.408965][  T302]  ? __pfx_put_timespec64+0x10/0x10
[   17.408974][  T302]  ? posix_cpu_clock_get+0xe1/0x240
[   17.408982][  T302]  ? __x64_sys_clock_gettime+0x17a/0x200
[   17.408987][  T302]  ? __pfx___x64_sys_clock_gettime+0x10/0x10
[   17.408994][  T302]  __x64_sys_sendto+0xe0/0x1c0
[   17.408998][  T302]  ? lockdep_hardirqs_on_prepare+0x275/0x410
[   17.409003][  T302]  do_syscall_64+0xc1/0x1d0
[   17.409010][  T302]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[   17.409015][  T302] RIP: 0033:0x7f1322d80a4a
[   17.409019][  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
[   17.409022][  T302] RSP: 002b:00007ffcd9917158 EFLAGS: 00000246 ORIG_RAX: 000000000000002c
[   17.409026][  T302] RAX: ffffffffffffffda RBX: 00000000340909d0 RCX: 00007f1322d80a4a
[   17.409028][  T302] RDX: 000000000000002a RSI: 0000000034090c42 RDI: 0000000000000005
[   17.409030][  T302] RBP: 0000000034090c42 R08: 00007ffcd9917160 R09: 0000000000000014
[   17.409031][  T302] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
[   17.409033][  T302] R13: 000000000000002a R14: 00007ffcd9917160 R15: 00007ffcd991723c
[   17.409049][  T302]  </TASK>
[   17.643784][  T312] br0: port 2(veth3) entered disabled state
[   17.790756][  T314] br0: port 1(veth1) entered disabled state
[   17.931438][  T316] veth3: left allmulticast mode
[   17.931677][  T316] veth3: left promiscuous mode
[   17.931999][  T316] br0: port 2(veth3) entered disabled state
[   17.933991][  T316] veth1: left allmulticast mode
[   17.934212][  T316] veth1: left promiscuous mode
[   17.934512][  T316] br0: port 1(veth1) entered disabled state
[   18.029187][  T316] ip (316) used greatest stack depth: 23552 bytes left