[   10.390005][  T250] ip (250) used greatest stack depth: 24224 bytes left
[   13.214477][  T300] br1: port 1(veth1) entered blocking state
[   13.214917][  T300] br1: port 1(veth1) entered disabled state
[   13.215565][  T300] veth1: entered allmulticast mode
[   13.224830][  T300] veth1: entered promiscuous mode
[   13.240054][  T300] ip (300) used greatest stack depth: 23984 bytes left
[   13.392258][  T302] br1: port 2(veth2) entered blocking state
[   13.392567][  T302] br1: port 2(veth2) entered disabled state
[   13.392844][  T302] veth2: entered allmulticast mode
[   13.394766][  T302] veth2: entered promiscuous mode
[   13.539917][  T304] br1: port 2(veth2) entered blocking state
[   13.540353][  T304] br1: port 2(veth2) entered forwarding state
[   13.541040][  T304] br1: port 1(veth1) entered blocking state
[   13.541321][  T304] br1: port 1(veth1) entered forwarding state
[   13.549273][  T304] ip (304) used greatest stack depth: 23920 bytes left
[   19.834208][  T331] GACT probability NOT on
[   20.068048][  T334] 
[   20.068338][  T334] =============================
[   20.068543][  T334] WARNING: suspicious RCU usage
[   20.068912][  T334] 6.14.0-rc6-virtme #1 Not tainted
[   20.069107][  T334] -----------------------------
[   20.069310][  T334] ./include/net/net_namespace.h:418 suspicious rcu_dereference_check() usage!
[   20.069640][  T334] 
[   20.069640][  T334] other info that might help us debug this:
[   20.069640][  T334] 
[   20.070009][  T334] 
[   20.070009][  T334] rcu_scheduler_active = 2, debug_locks = 1
[   20.070309][  T334] 1 lock held by mausezahn/334:
[   20.070506][  T334]  #0: ffffffff9f95b5c0 (rcu_read_lock_bh){....}-{1:3}, at: __dev_queue_xmit+0x1f0/0x18d0
[   20.070859][  T334] 
[   20.070859][  T334] stack backtrace:
[   20.071095][  T334] CPU: 3 UID: 0 PID: 334 Comm: mausezahn Not tainted 6.14.0-rc6-virtme #1
[   20.071100][  T334] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   20.071102][  T334] Call Trace:
[   20.071103][  T334]  <TASK>
[   20.071106][  T334]  dump_stack_lvl+0xb0/0xd0
[   20.071113][  T334]  lockdep_rcu_suspicious+0x1ea/0x280
[   20.071124][  T334]  dev_hard_start_xmit+0x2fc/0x3f0
[   20.071137][  T334]  __dev_queue_xmit+0xfaf/0x18d0
[   20.071151][  T334]  ? __pfx___dev_queue_xmit+0x10/0x10
[   20.071156][  T334]  ? packet_parse_headers+0x231/0x9c0
[   20.071164][  T334]  ? __pfx_sock_alloc_send_pskb+0x10/0x10
[   20.071170][  T334]  ? __pfx_packet_parse_headers+0x10/0x10
[   20.071175][  T334]  ? skb_copy_datagram_from_iter+0xe6/0x6f0
[   20.071180][  T334]  ? dev_get_by_index+0xb2/0x190
[   20.071191][  T334]  packet_snd+0xd0c/0x19d0
[   20.071202][  T334]  ? __lock_release+0x103/0x460
[   20.071206][  T334]  ? __might_fault+0x11b/0x170
[   20.071213][  T334]  ? __pfx_packet_snd+0x10/0x10
[   20.071215][  T334]  ? trace_lock_acquire+0x14c/0x1f0
[   20.071217][  T334]  ? __might_fault+0x11b/0x170
[   20.071224][  T334]  ? lock_acquire+0x32/0xc0
[   20.071230][  T334]  ? __might_fault+0x11b/0x170
[   20.071241][  T334]  __sys_sendto+0x3c3/0x450
[   20.071247][  T334]  ? __pfx___sys_sendto+0x10/0x10
[   20.071261][  T334]  ? sock_ioctl+0x3b6/0x590
[   20.071272][  T334]  ? __pfx___up_read+0x10/0x10
[   20.071280][  T334]  ? do_user_addr_fault+0x374/0xe30
[   20.071290][  T334]  ? do_user_addr_fault+0x374/0xe30
[   20.071297][  T334]  __x64_sys_sendto+0xe0/0x1c0
[   20.071301][  T334]  ? lockdep_hardirqs_on_prepare+0x275/0x410
[   20.071306][  T334]  do_syscall_64+0xc1/0x1d0
[   20.071313][  T334]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[   20.071317][  T334] RIP: 0033:0x7f4489321a4a
[   20.071322][  T334] 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
[   20.071324][  T334] RSP: 002b:00007ffda368a028 EFLAGS: 00000246 ORIG_RAX: 000000000000002c
[   20.071328][  T334] RAX: ffffffffffffffda RBX: 000000001ad949d0 RCX: 00007f4489321a4a
[   20.071330][  T334] RDX: 000000000000008e RSI: 000000001ad94cf2 RDI: 0000000000000005
[   20.071332][  T334] RBP: 000000001ad94cf2 R08: 00007ffda368a030 R09: 0000000000000014
[   20.071334][  T334] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
[   20.071336][  T334] R13: 000000000000008e R14: 00007ffda368a030 R15: 0000000000000000
[   20.071351][  T334]  </TASK>
[   33.639417][  T621] br1: port 2(veth2) entered disabled state
[   33.640483][  T621] br1: port 1(veth1) entered disabled state
[   33.801251][  T623] veth2: left allmulticast mode
[   33.801518][  T623] veth2: left promiscuous mode
[   33.801854][  T623] br1: port 2(veth2) entered disabled state
[   33.956185][  T625] veth1: left allmulticast mode
[   33.956478][  T625] veth1: left promiscuous mode
[   33.956809][  T625] br1: port 1(veth1) entered disabled state