[   10.803638][  T250] ip (250) used greatest stack depth: 24168 bytes left
[   13.773088][  T303] br1: port 1(veth1) entered blocking state
[   13.773545][  T303] br1: port 1(veth1) entered disabled state
[   13.773929][  T303] veth1: entered allmulticast mode
[   13.775907][  T303] veth1: entered promiscuous mode
[   13.793091][  T303] ip (303) used greatest stack depth: 23984 bytes left
[   13.881028][   T57] br1: port 1(veth1) entered blocking state
[   13.881448][   T57] br1: port 1(veth1) entered forwarding state
[   13.960884][  T305] br1: port 2(veth2) entered blocking state
[   13.961231][  T305] br1: port 2(veth2) entered disabled state
[   13.961558][  T305] veth2: entered allmulticast mode
[   13.963530][  T305] veth2: entered promiscuous mode
[   14.048921][   T57] br1: port 2(veth2) entered blocking state
[   14.049250][   T57] br1: port 2(veth2) entered forwarding state
[   22.225669][  T350] 
[   22.225971][  T350] =============================
[   22.226144][  T350] WARNING: suspicious RCU usage
[   22.226328][  T350] 6.14.0-rc6-virtme #1 Not tainted
[   22.226496][  T350] -----------------------------
[   22.226647][  T350] ./include/net/net_namespace.h:418 suspicious rcu_dereference_check() usage!
[   22.226903][  T350] 
[   22.226903][  T350] other info that might help us debug this:
[   22.226903][  T350] 
[   22.227196][  T350] 
[   22.227196][  T350] rcu_scheduler_active = 2, debug_locks = 1
[   22.227428][  T350] 1 lock held by mausezahn/350:
[   22.227593][  T350]  #0: ffffffff9755b5c0 (rcu_read_lock_bh){....}-{1:3}, at: __dev_queue_xmit+0x1f0/0x18d0
[   22.227897][  T350] 
[   22.227897][  T350] stack backtrace:
[   22.228085][  T350] CPU: 1 UID: 0 PID: 350 Comm: mausezahn Not tainted 6.14.0-rc6-virtme #1
[   22.228090][  T350] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   22.228092][  T350] Call Trace:
[   22.228094][  T350]  <TASK>
[   22.228097][  T350]  dump_stack_lvl+0xb0/0xd0
[   22.228110][  T350]  lockdep_rcu_suspicious+0x1ea/0x280
[   22.228124][  T350]  dev_hard_start_xmit+0x2fc/0x3f0
[   22.228135][  T350]  __dev_queue_xmit+0xfaf/0x18d0
[   22.228149][  T350]  ? __pfx___dev_queue_xmit+0x10/0x10
[   22.228153][  T350]  ? packet_parse_headers+0x231/0x9c0
[   22.228163][  T350]  ? __pfx_sock_alloc_send_pskb+0x10/0x10
[   22.228174][  T350]  ? __pfx_packet_parse_headers+0x10/0x10
[   22.228178][  T350]  ? skb_copy_datagram_from_iter+0xe6/0x6f0
[   22.228184][  T350]  ? dev_get_by_index+0xb2/0x190
[   22.228196][  T350]  packet_snd+0xd0c/0x19d0
[   22.228208][  T350]  ? __lock_release+0x103/0x460
[   22.228212][  T350]  ? __might_fault+0x11b/0x170
[   22.228223][  T350]  ? __pfx_packet_snd+0x10/0x10
[   22.228225][  T350]  ? trace_lock_acquire+0x14c/0x1f0
[   22.228228][  T350]  ? __might_fault+0x11b/0x170
[   22.228235][  T350]  ? lock_acquire+0x32/0xc0
[   22.228241][  T350]  ? __might_fault+0x11b/0x170
[   22.228252][  T350]  __sys_sendto+0x3c3/0x450
[   22.228259][  T350]  ? __pfx___sys_sendto+0x10/0x10
[   22.228273][  T350]  ? sock_ioctl+0x3b6/0x590
[   22.228284][  T350]  ? __pfx___up_read+0x10/0x10
[   22.228294][  T350]  ? do_user_addr_fault+0x374/0xe30
[   22.228305][  T350]  ? do_user_addr_fault+0x374/0xe30
[   22.228312][  T350]  __x64_sys_sendto+0xe0/0x1c0
[   22.228316][  T350]  ? lockdep_hardirqs_on_prepare+0x275/0x410
[   22.228321][  T350]  do_syscall_64+0xc1/0x1d0
[   22.228332][  T350]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[   22.228338][  T350] RIP: 0033:0x7f38e649fa4a
[   22.228343][  T350] 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
[   22.228346][  T350] RSP: 002b:00007ffc47d8c548 EFLAGS: 00000246 ORIG_RAX: 000000000000002c
[   22.228350][  T350] RAX: ffffffffffffffda RBX: 0000000022f919d0 RCX: 00007f38e649fa4a
[   22.228352][  T350] RDX: 000000000000008e RSI: 0000000022f91cf2 RDI: 0000000000000005
[   22.228354][  T350] RBP: 0000000022f91cf2 R08: 00007ffc47d8c550 R09: 0000000000000014
[   22.228356][  T350] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
[   22.228358][  T350] R13: 000000000000008e R14: 00007ffc47d8c550 R15: 0000000000000000
[   22.228374][  T350]  </TASK>
[   40.949336][  T664] br1: port 2(veth2) entered disabled state
[   41.036794][  T665] veth2: left allmulticast mode
[   41.037060][  T665] veth2: left promiscuous mode
[   41.037420][  T665] br1: port 2(veth2) entered disabled state
[   41.118603][  T666] br1: port 1(veth1) entered disabled state
[   41.210829][  T667] veth1: left allmulticast mode
[   41.211090][  T667] veth1: left promiscuous mode
[   41.211490][  T667] br1: port 1(veth1) entered disabled state
[   41.351292][  T668] ip (668) used greatest stack depth: 23904 bytes left