[ 14.700290][ T262] ip (262) used greatest stack depth: 24480 bytes left [ 23.255775][ C2] [ 23.256080][ C2] ============================= [ 23.256340][ C2] WARNING: suspicious RCU usage [ 23.256613][ C2] 6.15.0-rc1-virtme #1 Not tainted [ 23.256876][ C2] ----------------------------- [ 23.257127][ C2] drivers/net/veth.c:907 suspicious rcu_dereference_check() usage! [ 23.257505][ C2] [ 23.257505][ C2] other info that might help us debug this: [ 23.257505][ C2] [ 23.257999][ C2] [ 23.257999][ C2] rcu_scheduler_active = 2, debug_locks = 1 [ 23.258371][ C2] no locks held by ksoftirqd/2/27. [ 23.258645][ C2] [ 23.258645][ C2] stack backtrace: [ 23.258959][ C2] CPU: 2 UID: 0 PID: 27 Comm: ksoftirqd/2 Not tainted 6.15.0-rc1-virtme #1 PREEMPT(full) [ 23.258963][ C2] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 23.258965][ C2] Call Trace: [ 23.258967][ C2] [ 23.258969][ C2] dump_stack_lvl+0xb0/0xd0 [ 23.258980][ C2] lockdep_rcu_suspicious+0x166/0x270 [ 23.258990][ C2] veth_xdp_rcv+0x824/0xc10 [ 23.258997][ C2] ? __pfx_stack_trace_consume_entry+0x10/0x10 [ 23.259004][ C2] ? arch_stack_walk+0x8b/0xf0 [ 23.259013][ C2] ? __pfx_veth_xdp_rcv+0x10/0x10 [ 23.259017][ C2] ? ret_from_fork_asm+0x1a/0x30 [ 23.259027][ C2] ? rcu_read_lock_any_held+0x7e/0xb0 [ 23.259032][ C2] ? stack_depot_save_flags+0x42e/0x7a0 [ 23.259038][ C2] ? validate_chain+0x166/0x4d0 [ 23.259048][ C2] veth_poll+0x121/0x400 [ 23.259052][ C2] ? __pfx_veth_poll+0x10/0x10 [ 23.259055][ C2] ? rcu_do_batch+0x34c/0xf20 [ 23.259065][ C2] ? dl_scaled_delta_exec+0xe0/0x2e0 [ 23.259076][ C2] ? rcu_read_lock_any_held+0x43/0xb0 [ 23.259079][ C2] ? validate_chain+0x166/0x4d0 [ 23.259087][ C2] ? __lock_acquire+0x591/0x9d0 [ 23.259097][ C2] __napi_poll.constprop.0+0xa2/0x460 [ 23.259102][ C2] ? rcu_is_watching+0x12/0xc0 [ 23.259109][ C2] net_rx_action+0x542/0xd00 [ 23.259121][ C2] ? __pfx_net_rx_action+0x10/0x10 [ 23.259125][ C2] ? _raw_spin_unlock_irq+0x28/0x50 [ 23.259132][ C2] ? _raw_spin_unlock_irq+0x33/0x50 [ 23.259151][ C2] handle_softirqs+0x218/0x620 [ 23.259160][ C2] ? __pfx_run_ksoftirqd+0x10/0x10 [ 23.259165][ C2] run_ksoftirqd+0x3f/0x70 [ 23.259169][ C2] smpboot_thread_fn+0x307/0x960 [ 23.259174][ C2] ? __pfx_smpboot_thread_fn+0x10/0x10 [ 23.259179][ C2] kthread+0x37b/0x600 [ 23.259184][ C2] ? __pfx_kthread+0x10/0x10 [ 23.259186][ C2] ? ret_from_fork+0x1b/0x70 [ 23.259190][ C2] ? __lock_release+0x5d/0x170 [ 23.259195][ C2] ? rcu_is_watching+0x12/0xc0 [ 23.259199][ C2] ? __pfx_kthread+0x10/0x10 [ 23.259204][ C2] ret_from_fork+0x31/0x70 [ 23.259207][ C2] ? __pfx_kthread+0x10/0x10 [ 23.259211][ C2] ret_from_fork_asm+0x1a/0x30 [ 23.259225][ C2]