WARNING: CPU: 1 PID: 11022 at net/xfrm/xfrm_policy.c:4079 xfrm_policy_fini+0x30c/0x3a0 net/xfrm/xfrm_policy.c:4079
Kernel panic - not syncing: panic_on_warn set ...
CPU: 1 PID: 11022 Comm: kworker/u4:5 Not tainted 5.1.0-rc6+ #163
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
Workqueue: netns cleanup_net
Call Trace:
 __dump_stack lib/dump_stack.c:77 [inline]
 dump_stack+0x172/0x1f0 lib/dump_stack.c:113
 panic+0x2cb/0x65c kernel/panic.c:214
 __warn.cold+0x20/0x45 kernel/panic.c:571
 report_bug+0x263/0x2b0 lib/bug.c:186
 fixup_bug arch/x86/kernel/traps.c:179 [inline]
 fixup_bug arch/x86/kernel/traps.c:174 [inline]
 do_error_trap+0x11b/0x200 arch/x86/kernel/traps.c:272
 do_invalid_op+0x37/0x50 arch/x86/kernel/traps.c:291
 invalid_op+0x14/0x20 arch/x86/entry/entry_64.S:973
RIP: 0010:xfrm_policy_fini+0x30c/0x3a0 net/xfrm/xfrm_policy.c:4079
Code: c3 e8 98 5d 64 fb 0f 0b e9 49 fe ff ff e8 8c 5d 64 fb 0f 0b e9 cd fd ff ff e8 80 5d 64 fb 0f 0b e9 00 ff ff ff e8 74 5d 64 fb <0f> 0b e9 62 fd ff ff e8 e8 ea 9c fb e9 7d fe ff ff 4c 89 ff e8 fb
RSP: 0018:ffff8880620cfbb0 EFLAGS: 00010293
RAX: ffff8880642943c0 RBX: ffff888092e55c30 RCX: 1ffff1100c852996
RDX: 0000000000000000 RSI: ffffffff860c2fac RDI: ffff888064294c3c
RBP: ffff8880620cfbf0 R08: ffff8880642943c0 R09: ffff888064294cb0
R10: 0000000000000000 R11: 0000000000000000 R12: ffff888092e54100
R13: ffff8880620cfcc8 R14: ffffffff893f1f38 R15: dffffc0000000000
 xfrm_net_exit+0x1d/0x70 net/xfrm/xfrm_policy.c:4139
 ops_exit_list.isra.0+0xb0/0x160 net/core/net_namespace.c:153
 cleanup_net+0x3fb/0x960 net/core/net_namespace.c:552
 process_one_work+0x98e/0x1790 kernel/workqueue.c:2269
 worker_thread+0x98/0xe40 kernel/workqueue.c:2415
 kthread+0x357/0x430 kernel/kthread.c:253
 ret_from_fork+0x3a/0x50 arch/x86/entry/entry_64.S:352
Kernel Offset: disabled
Rebooting in 86400 seconds..