IPVS: Creating netns size=2536 id=6 IPVS: Creating netns size=2536 id=7 IPVS: Creating netns size=2536 id=8 ------------[ cut here ]------------ WARNING: CPU: 1 PID: 492 at net/xfrm/xfrm_state.c:2175 xfrm_state_fini+0x2a0/0x340 net/xfrm/xfrm_state.c:2175 Kernel panic - not syncing: panic_on_warn set ... CPU: 1 PID: 492 Comm: kworker/u4:2 Not tainted 4.9.113-g90e7a90 #16 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 Workqueue: netns cleanup_net ffff8801d85d7950 ffffffff81eb4569 ffffffff83c48980 00000000ffffffff 0000000000000000 0000000000000001 000000000000087f ffff8801d85d7a10 ffffffff81421a55 0000000041b58ab3 ffffffff843bbec8 ffffffff81421896 Call Trace: [] __dump_stack lib/dump_stack.c:15 [inline] [] dump_stack+0xc1/0x128 lib/dump_stack.c:51 [] panic+0x1bf/0x3bc kernel/panic.c:179 [] __warn.cold.9+0xc1/0x17f kernel/panic.c:542 [] warn_slowpath_null+0x2c/0x40 kernel/panic.c:585 [] xfrm_state_fini+0x2a0/0x340 net/xfrm/xfrm_state.c:2175 [] xfrm_net_exit+0x2d/0x30 net/xfrm/xfrm_policy.c:3066 [] ops_exit_list.isra.6+0xb0/0x160 net/core/net_namespace.c:136 [] cleanup_net+0x321/0x630 net/core/net_namespace.c:473 [] process_one_work+0x7e1/0x1500 kernel/workqueue.c:2092 [] worker_thread+0xd6/0x10a0 kernel/workqueue.c:2226 [] kthread+0x26d/0x300 kernel/kthread.c:211 [] ret_from_fork+0x5c/0x70 arch/x86/entry/entry_64.S:373 Dumping ftrace buffer: (ftrace buffer empty) Kernel Offset: disabled Rebooting in 86400 seconds..