[  296.106409][    C1] 
[  296.106662][    C1] =============================
[  296.106902][    C1] WARNING: suspicious RCU usage
[  296.107152][    C1] 6.15.0-rc1-virtme #1 Not tainted
[  296.107392][    C1] -----------------------------
[  296.107619][    C1] drivers/net/veth.c:907 suspicious rcu_dereference_check() usage!
[  296.107958][    C1] 
[  296.107958][    C1] other info that might help us debug this:
[  296.107958][    C1] 
[  296.108414][    C1] 
[  296.108414][    C1] rcu_scheduler_active = 2, debug_locks = 1
[  296.108756][    C1] no locks held by ksoftirqd/1/22.
[  296.108993][    C1] 
[  296.108993][    C1] stack backtrace:
[  296.109293][    C1] CPU: 1 UID: 0 PID: 22 Comm: ksoftirqd/1 Not tainted 6.15.0-rc1-virtme #1 PREEMPT(full) 
[  296.109297][    C1] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[  296.109299][    C1] Call Trace:
[  296.109301][    C1]  <TASK>
[  296.109303][    C1]  dump_stack_lvl+0xb0/0xd0
[  296.109315][    C1]  lockdep_rcu_suspicious+0x166/0x270
[  296.109325][    C1]  veth_xdp_rcv+0x824/0xc10
[  296.109331][    C1]  ? validate_chain+0x166/0x4d0
[  296.109340][    C1]  ? __lock_acquire+0x591/0x9d0
[  296.109345][    C1]  ? __pfx_veth_xdp_rcv+0x10/0x10
[  296.109351][    C1]  ? rcu_read_lock_any_held+0x43/0xb0
[  296.109356][    C1]  ? validate_chain+0x166/0x4d0
[  296.109365][    C1]  ? __lock_acquire+0x591/0x9d0
[  296.109375][    C1]  veth_poll+0x121/0x400
[  296.109379][    C1]  ? __pfx_veth_poll+0x10/0x10
[  296.109387][    C1]  ? do_raw_spin_unlock+0x58/0x220
[  296.109392][    C1]  ? _raw_spin_unlock+0x2d/0x50
[  296.109398][    C1]  ? find_held_lock+0x2b/0x80
[  296.109403][    C1]  ? rcu_read_lock_any_held+0x43/0xb0
[  296.109406][    C1]  ? validate_chain+0x166/0x4d0
[  296.109414][    C1]  ? __lock_acquire+0x591/0x9d0
[  296.109424][    C1]  __napi_poll.constprop.0+0xa2/0x460
[  296.109430][    C1]  ? rcu_is_watching+0x12/0xc0
[  296.109436][    C1]  net_rx_action+0x542/0xd00
[  296.109448][    C1]  ? __pfx_net_rx_action+0x10/0x10
[  296.109453][    C1]  ? _raw_spin_unlock_irq+0x28/0x50
[  296.109458][    C1]  ? _raw_spin_unlock_irq+0x33/0x50
[  296.109477][    C1]  handle_softirqs+0x218/0x620
[  296.109485][    C1]  ? __pfx_run_ksoftirqd+0x10/0x10
[  296.109490][    C1]  run_ksoftirqd+0x3f/0x70
[  296.109494][    C1]  smpboot_thread_fn+0x307/0x960
[  296.109499][    C1]  ? __pfx_smpboot_thread_fn+0x10/0x10
[  296.109503][    C1]  kthread+0x37b/0x600
[  296.109508][    C1]  ? __pfx_kthread+0x10/0x10
[  296.109510][    C1]  ? ret_from_fork+0x1b/0x70
[  296.109514][    C1]  ? __lock_release+0x5d/0x170
[  296.109519][    C1]  ? rcu_is_watching+0x12/0xc0
[  296.109523][    C1]  ? __pfx_kthread+0x10/0x10
[  296.109528][    C1]  ret_from_fork+0x31/0x70
[  296.109531][    C1]  ? __pfx_kthread+0x10/0x10
[  296.109535][    C1]  ret_from_fork_asm+0x1a/0x30
[  296.109550][    C1]  </TASK>
[  331.921854][ T3076] udpgso_bench_tx (3076) used greatest stack depth: 23312 bytes left
[  372.142929][ T3439] udpgso_bench_tx (3439) used greatest stack depth: 22720 bytes left