[   65.324272][  T700] 8021q: 802.1Q VLAN Support v1.8
[   65.862751][  T706] gre: GRE over IPv4 demultiplexor driver
[   65.923892][  T706] ip6_gre: GRE over IPv6 tunneling driver
[   68.534531][  T741] ip (741) used greatest stack depth: 23744 bytes left
[   76.107664][  T788] GACT probability NOT on
[   76.498183][  T791] 
[   76.498468][  T791] =============================
[   76.498850][  T791] WARNING: suspicious RCU usage
[   76.499052][  T791] 6.14.0-rc6-virtme #1 Not tainted
[   76.499244][  T791] -----------------------------
[   76.499502][  T791] ./include/net/net_namespace.h:418 suspicious rcu_dereference_check() usage!
[   76.499894][  T791] 
[   76.499894][  T791] other info that might help us debug this:
[   76.499894][  T791] 
[   76.500401][  T791] 
[   76.500401][  T791] rcu_scheduler_active = 2, debug_locks = 1
[   76.500750][  T791] 1 lock held by mausezahn/791:
[   76.501013][  T791]  #0: ffffffff9275b5c0 (rcu_read_lock_bh){....}-{1:3}, at: __dev_queue_xmit+0x1f0/0x18d0
[   76.501539][  T791] 
[   76.501539][  T791] stack backtrace:
[   76.501862][  T791] CPU: 2 UID: 0 PID: 791 Comm: mausezahn Not tainted 6.14.0-rc6-virtme #1
[   76.501868][  T791] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   76.501871][  T791] Call Trace:
[   76.501876][  T791]  <TASK>
[   76.501880][  T791]  dump_stack_lvl+0xb0/0xd0
[   76.501900][  T791]  lockdep_rcu_suspicious+0x1ea/0x280
[   76.501930][  T791]  dev_hard_start_xmit+0x2fc/0x3f0
[   76.501949][  T791]  __dev_queue_xmit+0xfaf/0x18d0
[   76.501974][  T791]  ? __pfx___dev_queue_xmit+0x10/0x10
[   76.501981][  T791]  ? packet_parse_headers+0x231/0x9c0
[   76.501999][  T791]  ? __pfx_sock_alloc_send_pskb+0x10/0x10
[   76.502013][  T791]  ? __pfx_packet_parse_headers+0x10/0x10
[   76.502021][  T791]  ? skb_copy_datagram_from_iter+0xe6/0x6f0
[   76.502030][  T791]  ? dev_get_by_index+0xb2/0x190
[   76.502053][  T791]  packet_snd+0xd0c/0x19d0
[   76.502075][  T791]  ? __lock_release+0x103/0x460
[   76.502082][  T791]  ? __might_fault+0x11b/0x170
[   76.502102][  T791]  ? __pfx_packet_snd+0x10/0x10
[   76.502106][  T791]  ? trace_lock_acquire+0x14c/0x1f0
[   76.502110][  T791]  ? __might_fault+0x11b/0x170
[   76.502120][  T791]  ? lock_acquire+0x32/0xc0
[   76.502128][  T791]  ? __might_fault+0x11b/0x170
[   76.502147][  T791]  __sys_sendto+0x3c3/0x450
[   76.502162][  T791]  ? __pfx___sys_sendto+0x10/0x10
[   76.502190][  T791]  ? sock_ioctl+0x3b6/0x590
[   76.502206][  T791]  ? __pfx___up_read+0x10/0x10
[   76.502222][  T791]  ? do_user_addr_fault+0x374/0xe30
[   76.502247][  T791]  ? do_user_addr_fault+0x374/0xe30
[   76.502260][  T791]  __x64_sys_sendto+0xe0/0x1c0
[   76.502267][  T791]  ? lockdep_hardirqs_on_prepare+0x275/0x410
[   76.502277][  T791]  do_syscall_64+0xc1/0x1d0
[   76.502295][  T791]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[   76.502308][  T791] RIP: 0033:0x7f399f5d5a4a
[   76.502315][  T791] 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
[   76.502320][  T791] RSP: 002b:00007ffdb4c911b8 EFLAGS: 00000246 ORIG_RAX: 000000000000002c
[   76.502328][  T791] RAX: ffffffffffffffda RBX: 0000000019f259d0 RCX: 00007f399f5d5a4a
[   76.502331][  T791] RDX: 0000000000000062 RSI: 0000000019f255c2 RDI: 0000000000000005
[   76.502334][  T791] RBP: 0000000019f255c2 R08: 00007ffdb4c911c0 R09: 0000000000000014
[   76.502337][  T791] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
[   76.502340][  T791] R13: 0000000000000062 R14: 00007ffdb4c911c0 R15: 0000000000000000
[   76.502372][  T791]  </TASK>