panic: ufs_rename: lost dir entry
Starting stack trace...
panic(ffffffff833f3152) at panic+0x1ba sys/kern/subr_prf.c:229
ufs_rename(ffff80003c9f7088) at ufs_rename+0x175f sys/ufs/ufs/ufs_vnops.c:883
VOP_RENAME(fffffd805ec2be58,fffffd8072f01460,ffff80003c9f7258,fffffd805ec2be58,0,ffff80003c9f71a8) at VOP_RENAME+0x137 sys/kern/vfs_vops.c:376
dorenameat(ffff80002a786008,ffffff9c,200000000440,ffffff9c,200000000480) at dorenameat+0x3f7 sys/kern/vfs_syscalls.c:3034
syscall(ffff80003c9f73e0) at syscall+0x962 mi_syscall sys/sys/syscall_mi.h:-1 [inline]
syscall(ffff80003c9f73e0) at syscall+0x962 sys/arch/amd64/amd64/trap.c:765
Xsyscall() at Xsyscall+0x128
end of kernel
end trace frame: 0xd918235d2f0, count: 251
End of stack trace.