panic: ufs_rename: lost dir entry Starting stack trace... panic(ffffffff833edda1) at panic+0x1ba sys/kern/subr_prf.c:229 ufs_rename(ffff80002a959668) at ufs_rename+0x175f sys/ufs/ufs/ufs_vnops.c:883 VOP_RENAME(fffffd8061bf6390,fffffd806d471e98,ffff80002a959838,fffffd8061bf6390,0,ffff80002a959788) at VOP_RENAME+0x137 sys/kern/vfs_vops.c:376 dorenameat(ffff80002dcfafc8,ffffff9c,2000000000c0,ffffff9c,200000000040) at dorenameat+0x3f7 sys/kern/vfs_syscalls.c:3034 syscall(ffff80002a9599c0) at syscall+0x962 mi_syscall sys/sys/syscall_mi.h:-1 [inline] syscall(ffff80002a9599c0) at syscall+0x962 sys/arch/amd64/amd64/trap.c:748 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x181b630ded0, count: 251 End of stack trace.