[ 1292.374911][T17602] 
[ 1292.375189][T17602] =============================
[ 1292.375582][T17602] WARNING: suspicious RCU usage
[ 1292.375737][T17602] 6.14.0-rc6-virtme #1 Not tainted
[ 1292.375890][T17602] -----------------------------
[ 1292.376098][T17602] ./include/net/net_namespace.h:418 suspicious rcu_dereference_check() usage!
[ 1292.376356][T17602] 
[ 1292.376356][T17602] other info that might help us debug this:
[ 1292.376356][T17602] 
[ 1292.376652][T17602] 
[ 1292.376652][T17602] rcu_scheduler_active = 2, debug_locks = 1
[ 1292.376878][T17602] 1 lock held by mausezahn/17602:
[ 1292.377033][T17602]  #0: ffffffff9cd5b5c0 (rcu_read_lock_bh){....}-{1:3}, at: __dev_queue_xmit+0x1f0/0x18d0
[ 1292.377345][T17602] 
[ 1292.377345][T17602] stack backtrace:
[ 1292.377542][T17602] CPU: 3 UID: 0 PID: 17602 Comm: mausezahn Not tainted 6.14.0-rc6-virtme #1
[ 1292.377547][T17602] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 1292.377549][T17602] Call Trace:
[ 1292.377551][T17602]  <TASK>
[ 1292.377553][T17602]  dump_stack_lvl+0xb0/0xd0
[ 1292.377563][T17602]  lockdep_rcu_suspicious+0x1ea/0x280
[ 1292.377575][T17602]  dev_hard_start_xmit+0x2fc/0x3f0
[ 1292.377586][T17602]  __dev_queue_xmit+0xfaf/0x18d0
[ 1292.377600][T17602]  ? __pfx___dev_queue_xmit+0x10/0x10
[ 1292.377605][T17602]  ? packet_parse_headers+0x231/0x9c0
[ 1292.377614][T17602]  ? __pfx_sock_alloc_send_pskb+0x10/0x10
[ 1292.377622][T17602]  ? __pfx_packet_parse_headers+0x10/0x10
[ 1292.377626][T17602]  ? skb_copy_datagram_from_iter+0xe6/0x6f0
[ 1292.377633][T17602]  ? dev_get_by_index+0xb2/0x190
[ 1292.377646][T17602]  packet_snd+0xd0c/0x19d0
[ 1292.377658][T17602]  ? __lock_release+0x103/0x460
[ 1292.377662][T17602]  ? __might_fault+0x11b/0x170
[ 1292.377671][T17602]  ? __pfx_packet_snd+0x10/0x10
[ 1292.377673][T17602]  ? trace_lock_acquire+0x14c/0x1f0
[ 1292.377675][T17602]  ? __might_fault+0x11b/0x170
[ 1292.377683][T17602]  ? lock_acquire+0x32/0xc0
[ 1292.377689][T17602]  ? __might_fault+0x11b/0x170
[ 1292.377700][T17602]  __sys_sendto+0x3c3/0x450
[ 1292.377707][T17602]  ? __pfx___sys_sendto+0x10/0x10
[ 1292.377721][T17602]  ? sock_ioctl+0x3b6/0x590
[ 1292.377732][T17602]  ? __pfx___up_read+0x10/0x10
[ 1292.377743][T17602]  ? do_user_addr_fault+0x374/0xe30
[ 1292.377755][T17602]  ? do_user_addr_fault+0x374/0xe30
[ 1292.377762][T17602]  __x64_sys_sendto+0xe0/0x1c0
[ 1292.377765][T17602]  ? lockdep_hardirqs_on_prepare+0x275/0x410
[ 1292.377770][T17602]  do_syscall_64+0xc1/0x1d0
[ 1292.377780][T17602]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 1292.377786][T17602] RIP: 0033:0x7f866adfea4a
[ 1292.377791][T17602] 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
[ 1292.377794][T17602] RSP: 002b:00007fffe7074ab8 EFLAGS: 00000246 ORIG_RAX: 000000000000002c
[ 1292.377797][T17602] RAX: ffffffffffffffda RBX: 000000003449f9d0 RCX: 00007f866adfea4a
[ 1292.377799][T17602] RDX: 0000000000000062 RSI: 000000003449f5c2 RDI: 0000000000000005
[ 1292.377801][T17602] RBP: 000000003449f5c2 R08: 00007fffe7074ac0 R09: 0000000000000014
[ 1292.377804][T17602] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
[ 1292.377805][T17602] R13: 0000000000000062 R14: 00007fffe7074ac0 R15: 0000000000000000
[ 1292.377822][T17602]  </TASK>