panic: ufs_rename: lost dir entry Starting stack trace... panic(ffffffff83522af7) at panic+0x1ba sys/kern/subr_prf.c:229 ufs_rename(ffff80002a7a7178) at ufs_rename+0x175f sys/ufs/ufs/ufs_vnops.c:883 VOP_RENAME(fffffd805e497ce0,fffffd805e497e90,ffff80002a7a7348,fffffd805e497ce0,0,ffff80002a7a7298) at VOP_RENAME+0x137 sys/kern/vfs_vops.c:376 dorenameat(ffff80002a737230,ffffff9c,2000000001c0,ffffff9c,200000000200) at dorenameat+0x3f7 sys/kern/vfs_syscalls.c:3070 syscall(ffff80002a7a74d0) at syscall+0x962 mi_syscall sys/sys/syscall_mi.h:-1 [inline] syscall(ffff80002a7a74d0) at syscall+0x962 sys/arch/amd64/amd64/trap.c:783 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x850ad4bc3d0, count: 251 End of stack trace. syncing disks...