[   11.203030][  T274] ip (274) used greatest stack depth: 23120 bytes left
[   16.757422][  T356] 8021q: 802.1Q VLAN Support v1.8
[   17.218754][  T362] gre: GRE over IPv4 demultiplexor driver
[   17.278148][  T362] ip6_gre: GRE over IPv6 tunneling driver
[   27.061543][  T446] GACT probability NOT on
[   27.433076][  T449] 
[   27.433367][  T449] =============================
[   27.433534][  T449] WARNING: suspicious RCU usage
[   27.433700][  T449] 6.14.0-rc6-virtme #1 Not tainted
[   27.433876][  T449] -----------------------------
[   27.434032][  T449] ./include/net/net_namespace.h:418 suspicious rcu_dereference_check() usage!
[   27.434315][  T449] 
[   27.434315][  T449] other info that might help us debug this:
[   27.434315][  T449] 
[   27.434624][  T449] 
[   27.434624][  T449] rcu_scheduler_active = 2, debug_locks = 1
[   27.434857][  T449] 1 lock held by mausezahn/449:
[   27.435018][  T449]  #0: ffffffff9195b5c0 (rcu_read_lock_bh){....}-{1:3}, at: __dev_queue_xmit+0x1f0/0x18d0
[   27.435328][  T449] 
[   27.435328][  T449] stack backtrace:
[   27.435526][  T449] CPU: 1 UID: 0 PID: 449 Comm: mausezahn Not tainted 6.14.0-rc6-virtme #1
[   27.435530][  T449] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   27.435533][  T449] Call Trace:
[   27.435534][  T449]  <TASK>
[   27.435537][  T449]  dump_stack_lvl+0xb0/0xd0
[   27.435544][  T449]  lockdep_rcu_suspicious+0x1ea/0x280
[   27.435554][  T449]  dev_hard_start_xmit+0x2fc/0x3f0
[   27.435564][  T449]  __dev_queue_xmit+0xfaf/0x18d0
[   27.435578][  T449]  ? __pfx___dev_queue_xmit+0x10/0x10
[   27.435582][  T449]  ? packet_parse_headers+0x231/0x9c0
[   27.435591][  T449]  ? __pfx_sock_alloc_send_pskb+0x10/0x10
[   27.435597][  T449]  ? __pfx_packet_parse_headers+0x10/0x10
[   27.435602][  T449]  ? skb_copy_datagram_from_iter+0xe6/0x6f0
[   27.435607][  T449]  ? dev_get_by_index+0xb2/0x190
[   27.435618][  T449]  packet_snd+0xd0c/0x19d0
[   27.435630][  T449]  ? __lock_release+0x103/0x460
[   27.435633][  T449]  ? __might_fault+0x11b/0x170
[   27.435640][  T449]  ? __pfx_packet_snd+0x10/0x10
[   27.435642][  T449]  ? trace_lock_acquire+0x14c/0x1f0
[   27.435645][  T449]  ? __might_fault+0x11b/0x170
[   27.435651][  T449]  ? lock_acquire+0x32/0xc0
[   27.435658][  T449]  ? __might_fault+0x11b/0x170
[   27.435668][  T449]  __sys_sendto+0x3c3/0x450
[   27.435674][  T449]  ? __pfx___sys_sendto+0x10/0x10
[   27.435689][  T449]  ? sock_ioctl+0x3b6/0x590
[   27.435698][  T449]  ? __pfx___up_read+0x10/0x10
[   27.435706][  T449]  ? do_user_addr_fault+0x374/0xe30
[   27.435716][  T449]  ? do_user_addr_fault+0x374/0xe30
[   27.435723][  T449]  __x64_sys_sendto+0xe0/0x1c0
[   27.435727][  T449]  ? lockdep_hardirqs_on_prepare+0x275/0x410
[   27.435732][  T449]  do_syscall_64+0xc1/0x1d0
[   27.435739][  T449]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[   27.435744][  T449] RIP: 0033:0x7fa3adf25a4a
[   27.435749][  T449] 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
[   27.435752][  T449] RSP: 002b:00007ffe93386d68 EFLAGS: 00000246 ORIG_RAX: 000000000000002c
[   27.435756][  T449] RAX: ffffffffffffffda RBX: 000000000b0b39d0 RCX: 00007fa3adf25a4a
[   27.435758][  T449] RDX: 0000000000000062 RSI: 000000000b0b35c2 RDI: 0000000000000005
[   27.435760][  T449] RBP: 000000000b0b35c2 R08: 00007ffe93386d70 R09: 0000000000000014
[   27.435762][  T449] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
[   27.435763][  T449] R13: 0000000000000062 R14: 00007ffe93386d70 R15: 0000000000000000
[   27.435779][  T449]  </TASK>