[   11.716700][  T259] ip (259) used greatest stack depth: 23872 bytes left
[   20.807501][  T324] veth2: entered promiscuous mode
[   21.825953][  T327] 
[   21.826328][  T327] =============================
[   21.826567][  T327] WARNING: suspicious RCU usage
[   21.826745][  T327] 6.14.0-rc6-virtme #1 Not tainted
[   21.826917][  T327] -----------------------------
[   21.827080][  T327] ./include/net/net_namespace.h:418 suspicious rcu_dereference_check() usage!
[   21.827472][  T327] 
[   21.827472][  T327] other info that might help us debug this:
[   21.827472][  T327] 
[   21.827852][  T327] 
[   21.827852][  T327] rcu_scheduler_active = 2, debug_locks = 1
[   21.828153][  T327] 1 lock held by mausezahn/327:
[   21.828399][  T327]  #0: ffffffffa4d5b5c0 (rcu_read_lock_bh){....}-{1:3}, at: __dev_queue_xmit+0x1f0/0x18d0
[   21.828690][  T327] 
[   21.828690][  T327] stack backtrace:
[   21.828889][  T327] CPU: 3 UID: 0 PID: 327 Comm: mausezahn Not tainted 6.14.0-rc6-virtme #1
[   21.828895][  T327] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   21.828899][  T327] Call Trace:
[   21.828901][  T327]  <TASK>
[   21.828905][  T327]  dump_stack_lvl+0xb0/0xd0
[   21.828915][  T327]  lockdep_rcu_suspicious+0x1ea/0x280
[   21.828931][  T327]  dev_hard_start_xmit+0x2fc/0x3f0
[   21.828949][  T327]  __dev_queue_xmit+0xfaf/0x18d0
[   21.828975][  T327]  ? __pfx___dev_queue_xmit+0x10/0x10
[   21.828982][  T327]  ? packet_parse_headers+0x231/0x9c0
[   21.828998][  T327]  ? __pfx_sock_alloc_send_pskb+0x10/0x10
[   21.829008][  T327]  ? __pfx_packet_parse_headers+0x10/0x10
[   21.829016][  T327]  ? skb_copy_datagram_from_iter+0xe6/0x6f0
[   21.829022][  T327]  ? dev_get_by_index+0xb2/0x190
[   21.829033][  T327]  packet_snd+0xd0c/0x19d0
[   21.829045][  T327]  ? __lock_release+0x103/0x460
[   21.829048][  T327]  ? __might_fault+0x11b/0x170
[   21.829055][  T327]  ? __pfx_packet_snd+0x10/0x10
[   21.829058][  T327]  ? trace_lock_acquire+0x14c/0x1f0
[   21.829060][  T327]  ? __might_fault+0x11b/0x170
[   21.829067][  T327]  ? lock_acquire+0x32/0xc0
[   21.829073][  T327]  ? __might_fault+0x11b/0x170
[   21.829084][  T327]  __sys_sendto+0x3c3/0x450
[   21.829090][  T327]  ? __pfx___sys_sendto+0x10/0x10
[   21.829108][  T327]  ? sock_ioctl+0x3b6/0x590
[   21.829112][  T327]  ? _copy_to_user+0x5c/0x80
[   21.829121][  T327]  ? __pfx_put_timespec64+0x10/0x10
[   21.829130][  T327]  ? posix_cpu_clock_get+0xe1/0x240
[   21.829139][  T327]  ? __x64_sys_clock_gettime+0x17a/0x200
[   21.829144][  T327]  ? __pfx___x64_sys_clock_gettime+0x10/0x10
[   21.829151][  T327]  __x64_sys_sendto+0xe0/0x1c0
[   21.829155][  T327]  ? lockdep_hardirqs_on_prepare+0x275/0x410
[   21.829160][  T327]  do_syscall_64+0xc1/0x1d0
[   21.829168][  T327]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[   21.829174][  T327] RIP: 0033:0x7f6ec9284a4a
[   21.829179][  T327] 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
[   21.829181][  T327] RSP: 002b:00007ffd61f32658 EFLAGS: 00000246 ORIG_RAX: 000000000000002c
[   21.829185][  T327] RAX: ffffffffffffffda RBX: 000000003693a9d0 RCX: 00007f6ec9284a4a
[   21.829187][  T327] RDX: 0000000000000012 RSI: 000000003693abd2 RDI: 0000000000000005
[   21.829189][  T327] RBP: 000000003693abd2 R08: 00007ffd61f32660 R09: 0000000000000014
[   21.829191][  T327] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
[   21.829193][  T327] R13: 0000000000000012 R14: 00007ffd61f32660 R15: 0000000000000000
[   21.829209][  T327]  </TASK>
[   39.856961][  T351] 8021q: 802.1Q VLAN Support v1.8

WAIT TIMEOUT stderr

Ctrl-C stderr

Ctrl-C stderr
[  340.875696][  T324] veth2: left promiscuous mode

WAIT TIMEOUT stderr