F2FS-fs (loop3): Can't find valid F2FS filesystem in 2th superblock
FAT-fs (loop2): Unrecognized mount option "euid<00000000000000000000" or missing value
FAT-fs (loop2): bogus number of reserved sectors
FAT-fs (loop2): Can't find a valid FAT filesystem
------------[ cut here ]------------
WARNING: CPU: 1 PID: 29092 at net/xfrm/xfrm_state.c:2192 xfrm_state_fini+0x2a0/0x340 net/xfrm/xfrm_state.c:2192
Kernel panic - not syncing: panic_on_warn set ...

CPU: 1 PID: 29092 Comm: kworker/u4:37 Not tainted 4.9.192+ #0
Workqueue: netns cleanup_net
 ffff8801ac7a7900 ffffffff81b67081 0000000000000000 ffffffff82a3b340
 00000000ffffffff 0000000000000001 0000000000000009 ffff8801ac7a79e0
 ffffffff813fefda 0000000041b58ab3 ffffffff82e32ec5 ffffffff813fee01
Call Trace:
 [<00000000d2048223>] __dump_stack lib/dump_stack.c:15 [inline]
 [<00000000d2048223>] dump_stack+0xc1/0x120 lib/dump_stack.c:51
 [<00000000b91c0605>] panic+0x1d9/0x3bd kernel/panic.c:180
 [<00000000dcab721e>] __warn.cold+0x2f/0x2f kernel/panic.c:546
 [<000000006921db29>] warn_slowpath_null+0x2d/0x40 kernel/panic.c:589
 [<0000000027833eb9>] xfrm_state_fini+0x2a0/0x340 net/xfrm/xfrm_state.c:2192
 [<000000001db45bf1>] xfrm_net_exit+0x2e/0x40 net/xfrm/xfrm_policy.c:3122
 [<000000000e3c41c7>] ops_exit_list.isra.0+0xb0/0x160 net/core/net_namespace.c:136
 [<00000000384c7842>] cleanup_net+0x3d6/0x8a0 net/core/net_namespace.c:474
 [<00000000e76f5384>] process_one_work+0x88b/0x1600 kernel/workqueue.c:2114
 [<000000006cf8acbd>] worker_thread+0x5df/0x11d0 kernel/workqueue.c:2251
 [<00000000603fedbb>] kthread+0x278/0x310 kernel/kthread.c:211
 [<00000000f6197d88>] ret_from_fork+0x5c/0x70 arch/x86/entry/entry_64.S:375
Kernel Offset: disabled
Rebooting in 86400 seconds..