IPVS: Creating netns size=2536 id=15 IPVS: Creating netns size=2536 id=16 ip (6198) used greatest stack depth: 24496 bytes left ip (6248) used greatest stack depth: 23760 bytes left ------------[ cut here ]------------ WARNING: CPU: 1 PID: 852 at net/xfrm/xfrm_state.c:2167 xfrm_state_fini+0x2a0/0x340 net/xfrm/xfrm_state.c:2167 Kernel panic - not syncing: panic_on_warn set ... CPU: 1 PID: 852 Comm: kworker/u4:2 Not tainted 4.9.86-gb324a70 #58 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 Workqueue: netns cleanup_net ffff8801d6987938 ffffffff81d956f9 ffffffff83a480c0 ffff8801d6987a10 ffffffff83f43500 ffffffff833df440 0000000000000009 ffff8801d6987a00 ffffffff8142f531 0000000041b58ab3 ffffffff8418b430 ffffffff8142f375 Call Trace: [] __dump_stack lib/dump_stack.c:15 [inline] [] dump_stack+0xc1/0x128 lib/dump_stack.c:51 [] panic+0x1bc/0x3a8 kernel/panic.c:179 [] __warn+0x1c4/0x1e0 kernel/panic.c:542 [] warn_slowpath_null+0x2c/0x40 kernel/panic.c:585 [] xfrm_state_fini+0x2a0/0x340 net/xfrm/xfrm_state.c:2167 [] xfrm_net_exit+0x2d/0x30 net/xfrm/xfrm_policy.c:3066 [] ops_exit_list.isra.4+0xae/0x150 net/core/net_namespace.c:136 [] cleanup_net+0x31d/0x610 net/core/net_namespace.c:454 [] process_one_work+0x7e0/0x1610 kernel/workqueue.c:2092 [] worker_thread+0xe0/0x10d0 kernel/workqueue.c:2226 [] kthread+0x26d/0x300 kernel/kthread.c:211 [] ret_from_fork+0x5c/0x70 arch/x86/entry/entry_64.S:374 Dumping ftrace buffer: (ftrace buffer empty) Kernel Offset: disabled Rebooting in 86400 seconds..