panic: ufs_rename: lost dir entry
Starting stack trace...
panic(ffffffff8341ff4f) at panic+0x1d0 sys/kern/subr_prf.c:229
ufs_rename(ffff80003c4ef4d8) at ufs_rename+0x175f sys/ufs/ufs/ufs_vnops.c:883
VOP_RENAME(fffffd807c10c610,fffffd8061a93520,ffff80003c4ef6a8,fffffd807c10c610,0,ffff80003c4ef5f8) at VOP_RENAME+0x137 sys/kern/vfs_vops.c:376
dorenameat(ffff800034fdf510,ffffff9c,200000000100,ffffff9c,200000000140) at dorenameat+0x3f7 sys/kern/vfs_syscalls.c:3034

syscall(ffff80003c4ef840) at syscall+0xb17 mi_syscall sys/sys/syscall_mi.h:176 [inline]
syscall(ffff80003c4ef840) at syscall+0xb17 sys/arch/amd64/amd64/trap.c:748
Xsyscall() at Xsyscall+0x128
end of kernel
end trace frame: 0x4b3abd631e0, count: 251
End of stack trace.