ODEBUG: assert_init not available (active state 0) object type: timer_list hint: 0xffff8880a06b7330 ------------[ cut here ]------------ WARNING: CPU: 1 PID: 189 at lib/debugobjects.c:287 debug_print_object.cold+0xa7/0xdb lib/debugobjects.c:287 Kernel panic - not syncing: panic_on_warn set ... CPU: 1 PID: 189 Comm: kworker/u4:3 Not tainted 4.14.112 #2 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 Workqueue: tipc_send tipc_send_work Call Trace: __dump_stack lib/dump_stack.c:17 [inline] dump_stack+0x138/0x19c lib/dump_stack.c:53 panic+0x1f2/0x438 kernel/panic.c:182 __warn.cold+0x2f/0x34 kernel/panic.c:546 kobject: 'kvm' (ffff8880a6e1ec10): kobject_uevent_env report_bug+0x216/0x254 lib/bug.c:186 fixup_bug arch/x86/kernel/traps.c:177 [inline] fixup_bug arch/x86/kernel/traps.c:172 [inline] do_error_trap+0x1bb/0x310 arch/x86/kernel/traps.c:295 kobject: 'kvm' (ffff8880a6e1ec10): fill_kobj_path: path = '/devices/virtual/misc/kvm' do_invalid_op+0x1b/0x20 arch/x86/kernel/traps.c:314 invalid_op+0x1b/0x40 arch/x86/entry/entry_64.S:944 RIP: 0010:debug_print_object.cold+0xa7/0xdb lib/debugobjects.c:287 RSP: 0018:ffff8880a9bb79d8 EFLAGS: 00010286 RAX: 0000000000000063 RBX: 0000000000000005 RCX: 0000000000000000 RDX: 0000000000000000 RSI: ffffffff866d0860 RDI: ffffed1015376f31 RBP: ffff8880a9bb7a00 R08: 0000000000000063 R09: ffff8880a9ba6bf0 R10: 0000000000000000 R11: 0000000000000000 R12: ffffffff866cba60 R13: ffff8880a06b7330 R14: 0000000000000000 R15: ffff8880a06b7318 debug_object_assert_init lib/debugobjects.c:656 [inline] debug_object_assert_init+0x232/0x300 lib/debugobjects.c:627 kobject: 'kvm' (ffff8880a6e1ec10): kobject_uevent_env kobject: 'kvm' (ffff8880a6e1ec10): fill_kobj_path: path = '/devices/virtual/misc/kvm' debug_timer_assert_init kernel/time/timer.c:707 [inline] debug_assert_init kernel/time/timer.c:755 [inline] del_timer+0x67/0xf0 kernel/time/timer.c:1150 tipc_subscrb_subscrp_delete+0x16a/0x3a0 net/tipc/subscr.c:207 tipc_subscrb_delete net/tipc/subscr.c:238 [inline] tipc_subscrb_release_cb+0x18/0x30 net/tipc/subscr.c:316 tipc_close_conn+0x179/0x210 net/tipc/server.c:203 tipc_send_to_sock net/tipc/server.c:538 [inline] tipc_send_work+0x470/0x5a0 net/tipc/server.c:564 process_one_work+0x868/0x1610 kernel/workqueue.c:2114 worker_thread+0x5d9/0x1050 kernel/workqueue.c:2248 kthread+0x31c/0x430 kernel/kthread.c:232 kobject: 'loop5' (ffff8880a4b042e0): kobject_uevent_env ret_from_fork+0x3a/0x50 arch/x86/entry/entry_64.S:402 Kernel Offset: disabled Rebooting in 86400 seconds..