[  731.317806][    C0] 
[  731.318071][    C0] =============================
[  731.318314][    C0] WARNING: suspicious RCU usage
[  731.318548][    C0] 6.15.0-rc1-virtme #1 Not tainted
[  731.318783][    C0] -----------------------------
[  731.319020][    C0] drivers/net/veth.c:907 suspicious rcu_dereference_check() usage!
[  731.319362][    C0] 
[  731.319362][    C0] other info that might help us debug this:
[  731.319362][    C0] 
[  731.319812][    C0] 
[  731.319812][    C0] rcu_scheduler_active = 2, debug_locks = 1
[  731.320166][    C0] no locks held by ksoftirqd/0/14.
[  731.320401][    C0] 
[  731.320401][    C0] stack backtrace:
[  731.320682][    C0] CPU: 0 UID: 0 PID: 14 Comm: ksoftirqd/0 Not tainted 6.15.0-rc1-virtme #1 PREEMPT(full) 
[  731.320686][    C0] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[  731.320688][    C0] Call Trace:
[  731.320690][    C0]  <TASK>
[  731.320692][    C0]  dump_stack_lvl+0xb0/0xd0
[  731.320704][    C0]  lockdep_rcu_suspicious+0x166/0x270
[  731.320714][    C0]  veth_xdp_rcv+0x824/0xc10
[  731.320720][    C0]  ? validate_chain+0x166/0x4d0
[  731.320729][    C0]  ? __lock_acquire+0x591/0x9d0
[  731.320735][    C0]  ? __pfx_veth_xdp_rcv+0x10/0x10
[  731.320740][    C0]  ? rcu_read_lock_any_held+0x43/0xb0
[  731.320745][    C0]  ? validate_chain+0x166/0x4d0
[  731.320754][    C0]  ? __lock_acquire+0x591/0x9d0
[  731.320763][    C0]  veth_poll+0x121/0x400
[  731.320768][    C0]  ? __pfx_veth_poll+0x10/0x10
[  731.320776][    C0]  ? do_raw_spin_unlock+0x58/0x220
[  731.320780][    C0]  ? _raw_spin_unlock+0x2d/0x50
[  731.320787][    C0]  ? find_held_lock+0x2b/0x80
[  731.320792][    C0]  ? rcu_read_lock_any_held+0x43/0xb0
[  731.320795][    C0]  ? validate_chain+0x166/0x4d0
[  731.320803][    C0]  ? __lock_acquire+0x591/0x9d0
[  731.320813][    C0]  __napi_poll.constprop.0+0xa2/0x460
[  731.320818][    C0]  ? rcu_is_watching+0x12/0xc0
[  731.320825][    C0]  net_rx_action+0x542/0xd00
[  731.320837][    C0]  ? __pfx_net_rx_action+0x10/0x10
[  731.320842][    C0]  ? _raw_spin_unlock_irq+0x28/0x50
[  731.320847][    C0]  ? _raw_spin_unlock_irq+0x33/0x50
[  731.320865][    C0]  handle_softirqs+0x218/0x620
[  731.320874][    C0]  ? __pfx_run_ksoftirqd+0x10/0x10
[  731.320879][    C0]  run_ksoftirqd+0x3f/0x70
[  731.320883][    C0]  smpboot_thread_fn+0x307/0x960
[  731.320887][    C0]  ? __pfx_smpboot_thread_fn+0x10/0x10
[  731.320892][    C0]  kthread+0x37b/0x600
[  731.320897][    C0]  ? __pfx_kthread+0x10/0x10
[  731.320899][    C0]  ? ret_from_fork+0x1b/0x70
[  731.320903][    C0]  ? __lock_release+0x5d/0x170
[  731.320908][    C0]  ? rcu_is_watching+0x12/0xc0
[  731.320913][    C0]  ? __pfx_kthread+0x10/0x10
[  731.320918][    C0]  ret_from_fork+0x31/0x70
[  731.320921][    C0]  ? __pfx_kthread+0x10/0x10
[  731.320925][    C0]  ret_from_fork_asm+0x1a/0x30
[  731.320940][    C0]  </TASK>
[  752.335111][ T6561] udpgso_bench_tx (6561) used greatest stack depth: 23464 bytes left
[  783.964029][ T6840] udpgso_bench_tx (6840) used greatest stack depth: 23312 bytes left