[ 4319.801767][ T8808] eth1: renamed from tmp [ 4320.475952][ T8816] eth2: renamed from tmp [ 4321.374903][ T8827] l2tp_core: L2TP core driver, V2.0 [ 4321.396890][ T8827] l2tp_netlink: L2TP netlink interface [ 4321.480029][ T8828] l2tp_ip: L2TP IP encapsulation support (L2TPv3) [ 4321.639099][ T8832] l2tp_eth: L2TP ethernet pseudowire support (L2TPv3) [ 4322.442549][ T8842] l2tp_ip6: L2TP IP encapsulation support for IPv6 (L2TPv3) [ 4326.034608][ T50] [ 4326.034939][ T50] ============================= [ 4326.035125][ T50] WARNING: suspicious RCU usage [ 4326.035299][ T50] 6.13.0-virtme #1 Not tainted [ 4326.035955][ T50] ----------------------------- [ 4326.036124][ T50] ./include/net/net_namespace.h:404 suspicious rcu_dereference_check() usage! [ 4326.036398][ T50] [ 4326.036398][ T50] other info that might help us debug this: [ 4326.036398][ T50] [ 4326.036684][ T50] [ 4326.036684][ T50] rcu_scheduler_active = 2, debug_locks = 1 [ 4326.036910][ T50] 2 locks held by kworker/2:1/50: [ 4326.037111][ T50] #0: ffff8880010a9548 ((wq_completion)events){+.+.}-{0:0}, at: process_one_work+0x7ec/0x16d0 [ 4326.037439][ T50] #1: ffffc9000036fd40 ((work_completion)(&trans->work)){+.+.}-{0:0}, at: process_one_work+0xe0b/0x16d0 [ 4326.037741][ T50] [ 4326.037741][ T50] stack backtrace: [ 4326.037930][ T50] CPU: 2 UID: 0 PID: 50 Comm: kworker/2:1 Not tainted 6.13.0-virtme #1 [ 4326.037935][ T50] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 4326.037937][ T50] Workqueue: events xfrm_trans_reinject [ 4326.037947][ T50] Call Trace: [ 4326.037949][ T50] <TASK> [ 4326.037952][ T50] dump_stack_lvl+0xb0/0xd0 [ 4326.037963][ T50] lockdep_rcu_suspicious+0x1ea/0x280 [ 4326.037975][ T50] ip6_input+0x262/0x3e0 [ 4326.037980][ T50] ? __pfx_ip6_input+0x10/0x10 [ 4326.037982][ T50] ? hlock_class+0x4e/0x130 [ 4326.037986][ T50] ? mark_lock+0x38/0x3e0 [ 4326.037994][ T50] ? mark_held_locks+0x9e/0xe0 [ 4326.038004][ T50] ? __pfx_ip6_rcv_finish+0x10/0x10 [ 4326.038009][ T50] xfrm_trans_reinject+0x2a2/0x460 [ 4326.038013][ T50] ? lock_acquire.part.0+0xeb/0x330 [ 4326.038020][ T50] ? __pfx_xfrm_trans_reinject+0x10/0x10 [ 4326.038027][ T50] ? __pfx_lock_acquire.part.0+0x10/0x10 [ 4326.038033][ T50] ? trace_lock_acquire+0x14c/0x1f0 [ 4326.038035][ T50] ? trace_lock_acquire+0x14c/0x1f0 [ 4326.038042][ T50] ? lock_acquire+0x32/0xc0 [ 4326.038045][ T50] ? process_one_work+0xe0b/0x16d0 [ 4326.038055][ T50] process_one_work+0xe55/0x16d0 [ 4326.038068][ T50] ? __pfx___lock_release+0x10/0x10 [ 4326.038073][ T50] ? __pfx_process_one_work+0x10/0x10 [ 4326.038086][ T50] ? assign_work+0x16c/0x240 [ 4326.038098][ T50] worker_thread+0x58c/0xce0 [ 4326.038103][ T50] ? lockdep_hardirqs_on_prepare+0x275/0x410 [ 4326.038115][ T50] ? __pfx_worker_thread+0x10/0x10 [ 4326.038121][ T50] kthread+0x359/0x5d0 [ 4326.038127][ T50] ? __pfx_kthread+0x10/0x10 [ 4326.038136][ T50] ? __pfx_kthread+0x10/0x10 [ 4326.038141][ T50] ret_from_fork+0x31/0x70 [ 4326.038147][ T50] ? __pfx_kthread+0x10/0x10 [ 4326.038150][ T50] ret_from_fork_asm+0x1a/0x30 [ 4326.038172][ T50] </TASK>