[   15.664059][  T338] 8021q: 802.1Q VLAN Support v1.8
[   15.983763][  T343] gre: GRE over IPv4 demultiplexor driver
[   16.034027][  T343] ip6_gre: GRE over IPv6 tunneling driver
[   25.495560][  T419] GACT probability NOT on
[   25.515100][  T416] tc (416) used greatest stack depth: 23336 bytes left
[   25.876027][  T422] 
[   25.876298][  T422] =============================
[   25.876468][  T422] WARNING: suspicious RCU usage
[   25.876626][  T422] 6.14.0-rc6-virtme #1 Not tainted
[   25.876821][  T422] -----------------------------
[   25.876970][  T422] ./include/net/net_namespace.h:418 suspicious rcu_dereference_check() usage!
[   25.877253][  T422] 
[   25.877253][  T422] other info that might help us debug this:
[   25.877253][  T422] 
[   25.877577][  T422] 
[   25.877577][  T422] rcu_scheduler_active = 2, debug_locks = 1
[   25.877817][  T422] 1 lock held by mausezahn/422:
[   25.877970][  T422]  #0: ffffffff8c55b5c0 (rcu_read_lock_bh){....}-{1:3}, at: __dev_queue_xmit+0x1f0/0x18d0
[   25.878272][  T422] 
[   25.878272][  T422] stack backtrace:
[   25.878467][  T422] CPU: 3 UID: 0 PID: 422 Comm: mausezahn Not tainted 6.14.0-rc6-virtme #1
[   25.878471][  T422] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   25.878474][  T422] Call Trace:
[   25.878475][  T422]  <TASK>
[   25.878478][  T422]  dump_stack_lvl+0xb0/0xd0
[   25.878485][  T422]  lockdep_rcu_suspicious+0x1ea/0x280
[   25.878496][  T422]  dev_hard_start_xmit+0x2fc/0x3f0
[   25.878506][  T422]  __dev_queue_xmit+0xfaf/0x18d0
[   25.878520][  T422]  ? __pfx___dev_queue_xmit+0x10/0x10
[   25.878525][  T422]  ? packet_parse_headers+0x231/0x9c0
[   25.878534][  T422]  ? __pfx_sock_alloc_send_pskb+0x10/0x10
[   25.878540][  T422]  ? __pfx_packet_parse_headers+0x10/0x10
[   25.878544][  T422]  ? skb_copy_datagram_from_iter+0xe6/0x6f0
[   25.878549][  T422]  ? dev_get_by_index+0xb2/0x190
[   25.878561][  T422]  packet_snd+0xd0c/0x19d0
[   25.878572][  T422]  ? __lock_release+0x103/0x460
[   25.878575][  T422]  ? __might_fault+0x11b/0x170
[   25.878582][  T422]  ? __pfx_packet_snd+0x10/0x10
[   25.878584][  T422]  ? trace_lock_acquire+0x14c/0x1f0
[   25.878586][  T422]  ? __might_fault+0x11b/0x170
[   25.878593][  T422]  ? lock_acquire+0x32/0xc0
[   25.878600][  T422]  ? __might_fault+0x11b/0x170
[   25.878616][  T422]  __sys_sendto+0x3c3/0x450
[   25.878626][  T422]  ? __pfx___sys_sendto+0x10/0x10
[   25.878651][  T422]  ? sock_ioctl+0x3b6/0x590
[   25.878664][  T422]  ? __pfx___up_read+0x10/0x10
[   25.878672][  T422]  ? do_user_addr_fault+0x374/0xe30
[   25.878682][  T422]  ? do_user_addr_fault+0x374/0xe30
[   25.878689][  T422]  __x64_sys_sendto+0xe0/0x1c0
[   25.878693][  T422]  ? lockdep_hardirqs_on_prepare+0x275/0x410
[   25.878698][  T422]  do_syscall_64+0xc1/0x1d0
[   25.878706][  T422]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[   25.878711][  T422] RIP: 0033:0x7f847aeb3a4a
[   25.878716][  T422] 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
[   25.878719][  T422] RSP: 002b:00007ffd9474f048 EFLAGS: 00000246 ORIG_RAX: 000000000000002c
[   25.878722][  T422] RAX: ffffffffffffffda RBX: 00000000226299d0 RCX: 00007f847aeb3a4a
[   25.878724][  T422] RDX: 0000000000000062 RSI: 00000000226295c2 RDI: 0000000000000005
[   25.878726][  T422] RBP: 00000000226295c2 R08: 00007ffd9474f050 R09: 0000000000000014
[   25.878728][  T422] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
[   25.878730][  T422] R13: 0000000000000062 R14: 00007ffd9474f050 R15: 0000000000000000
[   25.878758][  T422]  </TASK>