[   11.942858][  T277] 
[   11.943073][  T277] =============================
[   11.943249][  T277] WARNING: suspicious RCU usage
[   11.943405][  T277] 6.14.0-rc6-virtme #1 Not tainted
[   11.943559][  T277] -----------------------------
[   11.943728][  T277] ./include/net/net_namespace.h:418 suspicious rcu_dereference_check() usage!
[   11.944165][  T277] 
[   11.944165][  T277] other info that might help us debug this:
[   11.944165][  T277] 
[   11.944457][  T277] 
[   11.944457][  T277] rcu_scheduler_active = 2, debug_locks = 1
[   11.944696][  T277] 1 lock held by gro/277:
[   11.944822][  T277]  #0: ffffffff88b6f640 (rcu_read_lock_bh){....}-{1:3}, at: __dev_queue_xmit+0x1f5/0x18d0
[   11.945114][  T277] 
[   11.945114][  T277] stack backtrace:
[   11.945304][  T277] CPU: 3 UID: 0 PID: 277 Comm: gro Not tainted 6.14.0-rc6-virtme #1
[   11.945308][  T277] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   11.945310][  T277] Call Trace:
[   11.945311][  T277]  <TASK>
[   11.945314][  T277]  dump_stack_lvl+0xb0/0xd0
[   11.945321][  T277]  lockdep_rcu_suspicious+0x1ea/0x280
[   11.945332][  T277]  dev_hard_start_xmit+0x2fc/0x3f0
[   11.945344][  T277]  __dev_queue_xmit+0xfaa/0x18d0
[   11.945348][  T277]  ? _copy_from_iter+0x1d2/0x12e0
[   11.945365][  T277]  ? __pfx___dev_queue_xmit+0x10/0x10
[   11.945370][  T277]  ? packet_parse_headers+0x243/0x9d0
[   11.945380][  T277]  ? __pfx_sock_alloc_send_pskb+0x10/0x10
[   11.945387][  T277]  ? __pfx_packet_parse_headers+0x10/0x10
[   11.945392][  T277]  ? skb_copy_datagram_from_iter+0xe6/0x6e0
[   11.945399][  T277]  ? dev_get_by_index+0xb2/0x190
[   11.945409][  T277]  packet_snd+0xd0d/0x19c0
[   11.945422][  T277]  ? __lock_release+0x103/0x460
[   11.945425][  T277]  ? __might_fault+0x11b/0x170
[   11.945432][  T277]  ? __pfx_packet_snd+0x10/0x10
[   11.945434][  T277]  ? trace_lock_acquire+0x14c/0x1f0
[   11.945442][  T277]  ? lock_acquire+0x32/0xc0
[   11.945448][  T277]  ? __might_fault+0x11b/0x170
[   11.945459][  T277]  __sys_sendto+0x3c3/0x450
[   11.945466][  T277]  ? __pfx___sys_sendto+0x10/0x10
[   11.945480][  T277]  ? __lock_release+0x103/0x460
[   11.945482][  T277]  ? do_user_addr_fault+0x972/0xe30
[   11.945488][  T277]  ? __pfx___lock_release+0x10/0x10
[   11.945495][  T277]  ? __pfx___up_read+0x10/0x10
[   11.945502][  T277]  ? do_user_addr_fault+0x972/0xe30
[   11.945510][  T277]  ? do_user_addr_fault+0x97c/0xe30
[   11.945517][  T277]  __x64_sys_sendto+0xe0/0x1c0
[   11.945522][  T277]  ? lockdep_hardirqs_on_prepare+0x275/0x410
[   11.945526][  T277]  do_syscall_64+0xc1/0x1d0
[   11.945533][  T277]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[   11.945538][  T277] RIP: 0033:0x7f79875f5a4a
[   11.945542][  T277] 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
[   11.945545][  T277] RSP: 002b:00007ffe7cf5f0a8 EFLAGS: 00000246 ORIG_RAX: 000000000000002c
[   11.945548][  T277] RAX: ffffffffffffffda RBX: 000000000000009a RCX: 00007f79875f5a4a
[   11.945550][  T277] RDX: 000000000000009a RSI: 00000000004392e0 RDI: 0000000000000005
[   11.945552][  T277] RBP: 0000000000000064 R08: 00007ffe7cf5f110 R09: 0000000000000014
[   11.945553][  T277] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000005
[   11.945555][  T277] R13: 00007ffe7cf5f110 R14: 0000000000000036 R15: 00007ffe7cf609fd
[   11.945572][  T277]  </TASK>
[   12.264471][  T281] ip (281) used greatest stack depth: 22904 bytes left