team0 (unregistering): Port device team_slave_1 removed
team0 (unregistering): Port device team_slave_0 removed
bond0 (unregistering): Releasing backup interface bond_slave_1
bond0 (unregistering): Releasing backup interface bond_slave_0
bond0 (unregistering): Released all slaves
WARNING: CPU: 0 PID: 2757 at net/xfrm/xfrm_state.c:2377 xfrm_state_fini+0x46e/0x5f0 net/xfrm/xfrm_state.c:2377
Kernel panic - not syncing: panic_on_warn set ...

CPU: 0 PID: 2757 Comm: kworker/u4:4 Not tainted 4.19.0-rc8+ #292
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+0x1c4/0x2b4 lib/dump_stack.c:113
 panic+0x238/0x4e7 kernel/panic.c:184
 __warn.cold.8+0x163/0x1ba kernel/panic.c:536
 report_bug+0x254/0x2d0 lib/bug.c:186
 fixup_bug arch/x86/kernel/traps.c:178 [inline]
 do_error_trap+0x1fc/0x4d0 arch/x86/kernel/traps.c:296
 do_invalid_op+0x1b/0x20 arch/x86/kernel/traps.c:316
 invalid_op+0x14/0x20 arch/x86/entry/entry_64.S:993
RIP: 0010:xfrm_state_fini+0x46e/0x5f0 net/xfrm/xfrm_state.c:2377
Code: c3 e8 d6 df d6 fa 0f 0b e9 c6 fd ff ff e8 ca df d6 fa 0f 0b e9 91 fe ff ff e8 be df d6 fa 0f 0b e9 5c ff ff ff e8 b2 df d6 fa <0f> 0b e9 b9 fc ff ff e8 96 4b 1a fb e9 dc fc ff ff 48 89 d7 48 89
RSP: 0018:ffff8801cc2ff370 EFLAGS: 00010293
RAX: ffff8801cc2f40c0 RBX: ffff8801d889c180 RCX: 1ffff1003985fe74
RDX: 0000000000000000 RSI: ffffffff86a7c99e RDI: ffffffff8931f218
RBP: ffff8801cc2ff4c8 R08: ffff8801cc2f49b0 R09: 0000000000000007
R10: 0000000000000000 R11: ffff8801cc2f40c0 R12: 1ffff1003985fe70
R13: ffff8801cc2ff4a0 R14: 1ffff1003985fe74 R15: ffff8801d889dcc0
 xfrm_net_exit+0x25/0x70 net/xfrm/xfrm_policy.c:2943
 ops_exit_list.isra.7+0xb0/0x160 net/core/net_namespace.c:153
 cleanup_net+0x555/0xb10 net/core/net_namespace.c:551
 process_one_work+0xc90/0x1b90 kernel/workqueue.c:2153
 worker_thread+0x17f/0x1390 kernel/workqueue.c:2296
 kthread+0x35a/0x420 kernel/kthread.c:246
 ret_from_fork+0x3a/0x50 arch/x86/entry/entry_64.S:413
Kernel Offset: disabled
Rebooting in 86400 seconds..