panic: MNT_DEFERRED requires MNT_RECURSE | MNT_FORCE
cpuid = 0
time = 1767401410
KDB: stack backtrace:
db_trace_self_wrapper() at db_trace_self_wrapper+0xc6/frame 0xfffffe0057129610
kdb_backtrace() at kdb_backtrace+0xd0/frame 0xfffffe0057129770
vpanic() at vpanic+0x257/frame 0xfffffe0057129930
panic() at panic+0xb5/frame 0xfffffe00571299f0
dounmount() at dounmount+0x1783/frame 0xfffffe0057129b30
kern_unmount() at kern_unmount+0x648/frame 0xfffffe0057129d10
amd64_syscall() at amd64_syscall+0x4e2/frame 0xfffffe0057129f30
fast_syscall_common() at fast_syscall_common+0xf8/frame 0xfffffe0057129f30
--- syscall (198, FreeBSD ELF64, __syscall), rip = 0x3a817a, rsp = 0x825354f08, rbp = 0x825354f80 ---
KDB: enter: panic
[ thread pid 1291 tid 100673 ]
Stopped at      kdb_enter+0x6e: