panic: ufs_rename: lost dir entry
Starting stack trace...
panic(ffffffff834156a6) at panic+0x1ba sys/kern/subr_prf.c:229
ufs_rename(ffff800030d53b28) at ufs_rename+0x175f sys/ufs/ufs/ufs_vnops.c:883
VOP_RENAME(fffffd806c5c6600,fffffd806cc9b5f0,ffff800030d53cf8,fffffd806c5c6600,0,ffff800030d53c48) at VOP_RENAME+0x137 sys/kern/vfs_vops.c:376
dorenameat(ffff80002a7bca80,ffffff9c,200000000080,ffffff9c,2000000001c0) at dorenameat+0x3f7 sys/kern/vfs_syscalls.c:3034
syscall(ffff800030d53e80) at syscall+0x962 mi_syscall sys/sys/syscall_mi.h:-1 [inline]
syscall(ffff800030d53e80) at syscall+0x962 sys/arch/amd64/amd64/trap.c:775
Xsyscall() at Xsyscall+0x128
end of kernel
end trace frame: 0x75c7d424970, count: 251
End of stack trace.