[ 13.157262][ T295] eth1: renamed from tmp [ 13.640879][ T301] ip (301) used greatest stack depth: 23728 bytes left [ 13.808813][ T303] eth2: renamed from tmp [ 14.649299][ T314] l2tp_core: L2TP core driver, V2.0 [ 14.667427][ T314] l2tp_netlink: L2TP netlink interface [ 14.733729][ T316] l2tp_ip: L2TP IP encapsulation support (L2TPv3) [ 14.884581][ T320] l2tp_eth: L2TP ethernet pseudowire support (L2TPv3) [ 15.662590][ T330] l2tp_ip6: L2TP IP encapsulation support for IPv6 (L2TPv3) [ 17.110032][ T350] Initializing XFRM netlink socket [ 19.771012][ T9] [ 19.771214][ T9] ============================= [ 19.771372][ T9] WARNING: suspicious RCU usage [ 19.771514][ T9] 6.13.0-virtme #1 Not tainted [ 19.771654][ T9] ----------------------------- [ 19.771801][ T9] ./include/net/net_namespace.h:404 suspicious rcu_dereference_check() usage! [ 19.772039][ T9] [ 19.772039][ T9] other info that might help us debug this: [ 19.772039][ T9] [ 19.772309][ T9] [ 19.772309][ T9] rcu_scheduler_active = 2, debug_locks = 1 [ 19.772526][ T9] 2 locks held by kworker/0:1/9: [ 19.772690][ T9] #0: ffff8880010a9548 ((wq_completion)events){+.+.}-{0:0}, at: process_one_work+0x7ec/0x16d0 [ 19.772984][ T9] #1: ffffc90000097d40 ((work_completion)(&trans->work)){+.+.}-{0:0}, at: process_one_work+0xe0b/0x16d0 [ 19.773266][ T9] [ 19.773266][ T9] stack backtrace: [ 19.773450][ T9] CPU: 0 UID: 0 PID: 9 Comm: kworker/0:1 Not tainted 6.13.0-virtme #1 [ 19.773453][ T9] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 19.773456][ T9] Workqueue: events xfrm_trans_reinject [ 19.773462][ T9] Call Trace: [ 19.773464][ T9] [ 19.773467][ T9] dump_stack_lvl+0xb0/0xd0 [ 19.773475][ T9] lockdep_rcu_suspicious+0x1ea/0x280 [ 19.773485][ T9] ip6_input+0x262/0x3e0 [ 19.773491][ T9] ? __pfx_ip6_input+0x10/0x10 [ 19.773495][ T9] ? hlock_class+0x4e/0x130 [ 19.773498][ T9] ? mark_lock+0x38/0x3e0 [ 19.773506][ T9] ? mark_held_locks+0x9e/0xe0 [ 19.773515][ T9] ? __pfx_ip6_rcv_finish+0x10/0x10 [ 19.773521][ T9] xfrm_trans_reinject+0x2a2/0x460 [ 19.773525][ T9] ? lock_acquire.part.0+0xeb/0x330 [ 19.773531][ T9] ? __pfx_xfrm_trans_reinject+0x10/0x10 [ 19.773538][ T9] ? __pfx_lock_acquire.part.0+0x10/0x10 [ 19.773544][ T9] ? trace_lock_acquire+0x14c/0x1f0 [ 19.773546][ T9] ? trace_lock_acquire+0x14c/0x1f0 [ 19.773553][ T9] ? lock_acquire+0x32/0xc0 [ 19.773556][ T9] ? process_one_work+0xe0b/0x16d0 [ 19.773565][ T9] process_one_work+0xe55/0x16d0 [ 19.773578][ T9] ? __pfx___lock_release+0x10/0x10 [ 19.773583][ T9] ? __pfx_process_one_work+0x10/0x10 [ 19.773596][ T9] ? assign_work+0x16c/0x240 [ 19.773607][ T9] worker_thread+0x58c/0xce0 [ 19.773612][ T9] ? lockdep_hardirqs_on_prepare+0x275/0x410 [ 19.773623][ T9] ? __pfx_worker_thread+0x10/0x10 [ 19.773629][ T9] kthread+0x359/0x5d0 [ 19.773635][ T9] ? __pfx_kthread+0x10/0x10 [ 19.773644][ T9] ? __pfx_kthread+0x10/0x10 [ 19.773649][ T9] ret_from_fork+0x31/0x70 [ 19.773655][ T9] ? __pfx_kthread+0x10/0x10 [ 19.773658][ T9] ret_from_fork_asm+0x1a/0x30 [ 19.773678][ T9]