[   13.552429][  T303] br1: port 1(veth1) entered blocking state
[   13.552889][  T303] br1: port 1(veth1) entered disabled state
[   13.553301][  T303] veth1: entered allmulticast mode
[   13.555399][  T303] veth1: entered promiscuous mode
[   13.636249][   T40] br1: port 1(veth1) entered blocking state
[   13.636625][   T40] br1: port 1(veth1) entered forwarding state
[   13.710592][  T305] br1: port 2(veth2) entered blocking state
[   13.710982][  T305] br1: port 2(veth2) entered disabled state
[   13.711300][  T305] veth2: entered allmulticast mode
[   13.713241][  T305] veth2: entered promiscuous mode
[   13.785699][   T41] br1: port 2(veth2) entered blocking state
[   13.786055][   T41] br1: port 2(veth2) entered forwarding state
[   21.872894][  T351] 
[   21.873217][  T351] =============================
[   21.873534][  T351] WARNING: suspicious RCU usage
[   21.873687][  T351] 6.14.0-rc6-virtme #1 Not tainted
[   21.873838][  T351] -----------------------------
[   21.874007][  T351] ./include/net/net_namespace.h:418 suspicious rcu_dereference_check() usage!
[   21.874290][  T351] 
[   21.874290][  T351] other info that might help us debug this:
[   21.874290][  T351] 
[   21.874575][  T351] 
[   21.874575][  T351] rcu_scheduler_active = 2, debug_locks = 1
[   21.874794][  T351] 1 lock held by mausezahn/351:
[   21.874945][  T351]  #0: ffffffff9655b5c0 (rcu_read_lock_bh){....}-{1:3}, at: __dev_queue_xmit+0x1f0/0x18d0
[   21.875239][  T351] 
[   21.875239][  T351] stack backtrace:
[   21.875430][  T351] CPU: 0 UID: 0 PID: 351 Comm: mausezahn Not tainted 6.14.0-rc6-virtme #1
[   21.875434][  T351] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   21.875436][  T351] Call Trace:
[   21.875437][  T351]  <TASK>
[   21.875440][  T351]  dump_stack_lvl+0xb0/0xd0
[   21.875447][  T351]  lockdep_rcu_suspicious+0x1ea/0x280
[   21.875458][  T351]  dev_hard_start_xmit+0x2fc/0x3f0
[   21.875468][  T351]  __dev_queue_xmit+0xfaf/0x18d0
[   21.875483][  T351]  ? __pfx___dev_queue_xmit+0x10/0x10
[   21.875487][  T351]  ? packet_parse_headers+0x231/0x9c0
[   21.875496][  T351]  ? __pfx_sock_alloc_send_pskb+0x10/0x10
[   21.875502][  T351]  ? __pfx_packet_parse_headers+0x10/0x10
[   21.875506][  T351]  ? skb_copy_datagram_from_iter+0xe6/0x6f0
[   21.875512][  T351]  ? dev_get_by_index+0xb2/0x190
[   21.875523][  T351]  packet_snd+0xd0c/0x19d0
[   21.875535][  T351]  ? __lock_release+0x103/0x460
[   21.875538][  T351]  ? __might_fault+0x11b/0x170
[   21.875545][  T351]  ? __pfx_packet_snd+0x10/0x10
[   21.875548][  T351]  ? trace_lock_acquire+0x14c/0x1f0
[   21.875550][  T351]  ? __might_fault+0x11b/0x170
[   21.875557][  T351]  ? lock_acquire+0x32/0xc0
[   21.875563][  T351]  ? __might_fault+0x11b/0x170
[   21.875574][  T351]  __sys_sendto+0x3c3/0x450
[   21.875580][  T351]  ? __pfx___sys_sendto+0x10/0x10
[   21.875595][  T351]  ? sock_ioctl+0x3b6/0x590
[   21.875604][  T351]  ? __pfx___up_read+0x10/0x10
[   21.875613][  T351]  ? do_user_addr_fault+0x374/0xe30
[   21.875623][  T351]  ? do_user_addr_fault+0x374/0xe30
[   21.875630][  T351]  __x64_sys_sendto+0xe0/0x1c0
[   21.875634][  T351]  ? lockdep_hardirqs_on_prepare+0x275/0x410
[   21.875639][  T351]  do_syscall_64+0xc1/0x1d0
[   21.875646][  T351]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[   21.875651][  T351] RIP: 0033:0x7f53babe2a4a
[   21.875655][  T351] 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
[   21.875659][  T351] RSP: 002b:00007ffe27a37348 EFLAGS: 00000246 ORIG_RAX: 000000000000002c
[   21.875662][  T351] RAX: ffffffffffffffda RBX: 00000000161c09d0 RCX: 00007f53babe2a4a
[   21.875665][  T351] RDX: 000000000000008e RSI: 00000000161c0cf2 RDI: 0000000000000005
[   21.875667][  T351] RBP: 00000000161c0cf2 R08: 00007ffe27a37350 R09: 0000000000000014
[   21.875669][  T351] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
[   21.875670][  T351] R13: 000000000000008e R14: 00007ffe27a37350 R15: 0000000000000000
[   21.875686][  T351]  </TASK>
[   39.707921][  T665] br1: port 2(veth2) entered disabled state
[   39.798648][  T666] veth2: left allmulticast mode
[   39.798897][  T666] veth2: left promiscuous mode
[   39.799381][  T666] br1: port 2(veth2) entered disabled state
[   39.808377][  T666] ip (666) used greatest stack depth: 23640 bytes left
[   39.877355][  T667] br1: port 1(veth1) entered disabled state
[   39.948374][  T668] veth1: left allmulticast mode
[   39.948656][  T668] veth1: left promiscuous mode
[   39.949022][  T668] br1: port 1(veth1) entered disabled state