panic: ufs_rename: lost dir entry
Starting stack trace...
panic(ffffffff827ad271) at panic+0x16f sys/kern/subr_prf.c:229
ufs_rename(ffff8000245d2ff8) at ufs_rename+0x15b1 sys/ufs/ufs/ufs_vnops.c:908
VOP_RENAME(fffffd80630bb470,fffffd8060917118,ffff8000245d31c8,fffffd80630bb470,0,ffff8000245d3118) at VOP_RENAME+0xf4 sys/kern/vfs_vops.c:370
dorenameat(ffff800022d550a8,ffffff9c,20000200,ffffff9c,20000240) at dorenameat+0x2a0 sys/kern/vfs_syscalls.c:2994
syscall(ffff8000245d3360) at syscall+0x5e2 mi_syscall sys/sys/syscall_mi.h:110 [inline]
syscall(ffff8000245d3360) at syscall+0x5e2 sys/arch/amd64/amd64/trap.c:623
Xsyscall() at Xsyscall+0x128
end of kernel
end trace frame: 0x94a295f50a0, count: 251
End of stack trace.