[   11.003299][  T257] 
[   11.003590][  T257] =============================
[   11.003762][  T257] WARNING: suspicious RCU usage
[   11.004087][  T257] 6.14.0-rc6-virtme #1 Not tainted
[   11.004256][  T257] -----------------------------
[   11.004424][  T257] ./include/net/net_namespace.h:418 suspicious rcu_dereference_check() usage!
[   11.004726][  T257] 
[   11.004726][  T257] other info that might help us debug this:
[   11.004726][  T257] 
[   11.005061][  T257] 
[   11.005061][  T257] rcu_scheduler_active = 2, debug_locks = 1
[   11.005311][  T257] 1 lock held by psock_snd/257:
[   11.005482][  T257]  #0: ffffffffb0b6f640 (rcu_read_lock_bh){....}-{1:3}, at: __dev_queue_xmit+0x1f5/0x18d0
[   11.005792][  T257] 
[   11.005792][  T257] stack backtrace:
[   11.006025][  T257] CPU: 1 UID: 0 PID: 257 Comm: psock_snd Not tainted 6.14.0-rc6-virtme #1
[   11.006029][  T257] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   11.006031][  T257] Call Trace:
[   11.006032][  T257]  <TASK>
[   11.006035][  T257]  dump_stack_lvl+0xb0/0xd0
[   11.006043][  T257]  lockdep_rcu_suspicious+0x1ea/0x280
[   11.006054][  T257]  dev_hard_start_xmit+0x2fc/0x3f0
[   11.006065][  T257]  __dev_queue_xmit+0xfaa/0x18d0
[   11.006069][  T257]  ? _copy_from_iter+0x1d2/0x12e0
[   11.006087][  T257]  ? __pfx___dev_queue_xmit+0x10/0x10
[   11.006092][  T257]  ? packet_parse_headers+0x243/0x9d0
[   11.006103][  T257]  ? __pfx_sock_alloc_send_pskb+0x10/0x10
[   11.006109][  T257]  ? __pfx_packet_parse_headers+0x10/0x10
[   11.006114][  T257]  ? skb_copy_datagram_from_iter+0xe6/0x6e0
[   11.006121][  T257]  ? dev_get_by_index+0xb2/0x190
[   11.006131][  T257]  packet_snd+0xd0d/0x19c0
[   11.006143][  T257]  ? __lock_release+0x103/0x460
[   11.006146][  T257]  ? __might_fault+0x11b/0x170
[   11.006153][  T257]  ? __pfx_packet_snd+0x10/0x10
[   11.006156][  T257]  ? trace_lock_acquire+0x14c/0x1f0
[   11.006164][  T257]  ? lock_acquire+0x32/0xc0
[   11.006170][  T257]  ? __might_fault+0x11b/0x170
[   11.006181][  T257]  __sys_sendto+0x3c3/0x450
[   11.006187][  T257]  ? __pfx___sys_sendto+0x10/0x10
[   11.006190][  T257]  ? find_held_lock+0x2c/0x110
[   11.006202][  T257]  ? __pfx_lock_acquire.part.0+0x10/0x10
[   11.006213][  T257]  ? __virt_addr_valid+0x22b/0x430
[   11.006221][  T257]  ? __pfx_slab_free_after_rcu_debug+0x10/0x10
[   11.006225][  T257]  ? trace_rcu_segcb_stats+0x36/0x1e0
[   11.006234][  T257]  ? __pfx_slab_free_after_rcu_debug+0x10/0x10
[   11.006237][  T257]  ? lockdep_hardirqs_on_prepare+0x275/0x410
[   11.006245][  T257]  __x64_sys_sendto+0xe0/0x1c0
[   11.006250][  T257]  ? lockdep_hardirqs_on_prepare+0x275/0x410
[   11.006254][  T257]  do_syscall_64+0xc1/0x1d0
[   11.006262][  T257]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[   11.006266][  T257] RIP: 0033:0x7f6781eaca4a
[   11.006270][  T257] 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
[   11.006273][  T257] RSP: 002b:00007ffe8176bdc8 EFLAGS: 00000246 ORIG_RAX: 000000000000002c
[   11.006276][  T257] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007f6781eaca4a
[   11.006278][  T257] RDX: 0000000000000080 RSI: 0000000000414138 RDI: 0000000000000007
[   11.006280][  T257] RBP: 0000000000000006 R08: 00007ffe8176be00 R09: 0000000000000014
[   11.006282][  T257] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000005
[   11.006283][  T257] R13: 0000000000000007 R14: 00007ffe8176be00 R15: 0000000000000080
[   11.006300][  T257]  </TASK>
[   28.600619][    C2] IPv4: Oversized IP packet from 172.17.0.2