[   11.243197][  T273] ip (273) used greatest stack depth: 24384 bytes left
[   14.689247][  T317] br0: port 1(veth1) entered blocking state
[   14.689790][  T317] br0: port 1(veth1) entered disabled state
[   14.690357][  T317] veth1: entered allmulticast mode
[   14.693467][  T317] veth1: entered promiscuous mode
[   14.704494][  T317] ip (317) used greatest stack depth: 24240 bytes left
[   14.799759][  T319] br0: port 2(veth2) entered blocking state
[   14.800058][  T319] br0: port 2(veth2) entered disabled state
[   14.800366][  T319] veth2: entered allmulticast mode
[   14.802488][  T319] veth2: entered promiscuous mode
[   14.912681][  T320] br0: port 3(veth4) entered blocking state
[   14.913386][  T320] br0: port 3(veth4) entered disabled state
[   14.913791][  T320] veth4: entered allmulticast mode
[   14.916782][  T320] veth4: entered promiscuous mode
[   15.570433][   T41] br0: port 1(veth1) entered blocking state
[   15.570877][   T41] br0: port 1(veth1) entered forwarding state
[   15.685498][   T40] br0: port 2(veth2) entered blocking state
[   15.685829][   T40] br0: port 2(veth2) entered forwarding state
[   15.796015][   T40] br0: port 3(veth4) entered blocking state
[   15.796404][   T40] br0: port 3(veth4) entered forwarding state
[   31.058188][  T386] veth3: entered promiscuous mode
[   31.515289][  T392] GACT probability NOT on
[   31.654973][  T393] 
[   31.655301][  T393] =============================
[   31.655479][  T393] WARNING: suspicious RCU usage
[   31.655654][  T393] 6.14.0-rc6-virtme #1 Not tainted
[   31.655848][  T393] -----------------------------
[   31.656012][  T393] ./include/net/net_namespace.h:418 suspicious rcu_dereference_check() usage!
[   31.656344][  T393] 
[   31.656344][  T393] other info that might help us debug this:
[   31.656344][  T393] 
[   31.656646][  T393] 
[   31.656646][  T393] rcu_scheduler_active = 2, debug_locks = 1
[   31.656882][  T393] 1 lock held by mausezahn/393:
[   31.657053][  T393]  #0: ffffffffa1f5b5c0 (rcu_read_lock_bh){....}-{1:3}, at: __dev_queue_xmit+0x1f0/0x18d0
[   31.657364][  T393] 
[   31.657364][  T393] stack backtrace:
[   31.657561][  T393] CPU: 2 UID: 0 PID: 393 Comm: mausezahn Not tainted 6.14.0-rc6-virtme #1
[   31.657566][  T393] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   31.657567][  T393] Call Trace:
[   31.657569][  T393]  <TASK>
[   31.657572][  T393]  dump_stack_lvl+0xb0/0xd0
[   31.657579][  T393]  lockdep_rcu_suspicious+0x1ea/0x280
[   31.657590][  T393]  dev_hard_start_xmit+0x2fc/0x3f0
[   31.657600][  T393]  __dev_queue_xmit+0xfaf/0x18d0
[   31.657614][  T393]  ? __pfx___dev_queue_xmit+0x10/0x10
[   31.657619][  T393]  ? packet_parse_headers+0x231/0x9c0
[   31.657628][  T393]  ? __pfx_sock_alloc_send_pskb+0x10/0x10
[   31.657633][  T393]  ? __pfx_packet_parse_headers+0x10/0x10
[   31.657638][  T393]  ? skb_copy_datagram_from_iter+0xe6/0x6f0
[   31.657643][  T393]  ? dev_get_by_index+0xb2/0x190
[   31.657655][  T393]  packet_snd+0xd0c/0x19d0
[   31.657666][  T393]  ? __lock_release+0x103/0x460
[   31.657670][  T393]  ? __might_fault+0x11b/0x170
[   31.657676][  T393]  ? __pfx_packet_snd+0x10/0x10
[   31.657679][  T393]  ? trace_lock_acquire+0x14c/0x1f0
[   31.657681][  T393]  ? __might_fault+0x11b/0x170
[   31.657689][  T393]  ? lock_acquire+0x32/0xc0
[   31.657695][  T393]  ? __might_fault+0x11b/0x170
[   31.657706][  T393]  __sys_sendto+0x3c3/0x450
[   31.657712][  T393]  ? __pfx___sys_sendto+0x10/0x10
[   31.657727][  T393]  ? sock_ioctl+0x3b6/0x590
[   31.657736][  T393]  ? __pfx___up_read+0x10/0x10
[   31.657745][  T393]  ? do_user_addr_fault+0x374/0xe30
[   31.657755][  T393]  ? do_user_addr_fault+0x374/0xe30
[   31.657762][  T393]  __x64_sys_sendto+0xe0/0x1c0
[   31.657766][  T393]  ? lockdep_hardirqs_on_prepare+0x275/0x410
[   31.657771][  T393]  do_syscall_64+0xc1/0x1d0
[   31.657778][  T393]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[   31.657783][  T393] RIP: 0033:0x7f6965fc5a4a
[   31.657787][  T393] 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
[   31.657790][  T393] RSP: 002b:00007ffca0a67a08 EFLAGS: 00000246 ORIG_RAX: 000000000000002c
[   31.657793][  T393] RAX: ffffffffffffffda RBX: 00000000048d39d0 RCX: 00007f6965fc5a4a
[   31.657796][  T393] RDX: 0000000000000062 RSI: 00000000048d35c2 RDI: 0000000000000005
[   31.657797][  T393] RBP: 00000000048d35c2 R08: 00007ffca0a67a10 R09: 0000000000000014
[   31.657799][  T393] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
[   31.657800][  T393] R13: 0000000000000062 R14: 00007ffca0a67a10 R15: 0000000000000000
[   31.657816][  T393]  </TASK>
[   33.130603][  T399] veth3: left promiscuous mode
[   33.201119][  T400] veth3: entered promiscuous mode
[   35.050810][  T409] veth3: left promiscuous mode
[   35.218843][  T417] br0: port 3(veth4) entered disabled state
[   35.292125][  T418] br0: port 2(veth2) entered disabled state
[   35.382612][  T419] br0: port 1(veth1) entered disabled state
[   35.455637][  T420] veth4: left allmulticast mode
[   35.455863][  T420] veth4: left promiscuous mode
[   35.456249][  T420] br0: port 3(veth4) entered disabled state
[   35.457914][  T420] veth2: left allmulticast mode
[   35.458565][  T420] veth2: left promiscuous mode
[   35.458885][  T420] br0: port 2(veth2) entered disabled state
[   35.460604][  T420] veth1: left allmulticast mode
[   35.460819][  T420] veth1: left promiscuous mode
[   35.461170][  T420] br0: port 1(veth1) entered disabled state
[   35.535475][  T420] ip (420) used greatest stack depth: 23904 bytes left