panic: ufs_rename: lost dir entry
Starting stack trace...
panic(ffffffff8245df3b) at panic+0x16b sys/kern/subr_prf.c:233
ufs_rename(ffff800027c1d9d8) at ufs_rename+0x15b1 sys/ufs/ufs/ufs_vnops.c:921
VOP_RENAME(fffffd8063d62190,fffffd8065fac138,ffff800027c1dba8,fffffd8063d62190,0,ffff800027c1daf8) at VOP_RENAME+0xf0 sys/kern/vfs_vops.c:386
dorenameat(ffff800022ca8a88,ffffff9c,200000c0,ffffff9c,20000100) at dorenameat+0x29c sys/kern/vfs_syscalls.c:3021
syscall(ffff800027c1dd40) at syscall+0x489 mi_syscall sys/sys/syscall_mi.h:102 [inline]
syscall(ffff800027c1dd40) at syscall+0x489 sys/arch/amd64/amd64/trap.c:585
Xsyscall() at Xsyscall+0x128
end of kernel
end trace frame: 0x249ff92f
ee0, count: 251
End of stack trace.
syncing disks...11 10  done