login: panic: ufs_rename: lost dir entry Starting stack trace... panic(ffffffff827b1269) at panic+0x16f sys/kern/subr_prf.c:229 ufs_rename(ffff80002774ce88) at ufs_rename+0x15b1 sys/ufs/ufs/ufs_vnops.c:908 VOP_RENAME(fffffd8074db4520,fffffd80679efa48,ffff80002774d058,fffffd8074db4520,0,ffff80002774cfa8) at VOP_RENAME+0xf4 sys/kern/vfs_vops.c:370 dorenameat(ffff8000211f2838,ffffff9c,200005c0,ffffff9c,200006c0) at dorenameat+0x2a0 sys/kern/vfs_syscalls.c:2994 syscall(ffff80002774d1f0) at syscall+0x5e2 mi_syscall sys/sys/syscall_mi.h:110 [inline] syscall(ffff80002774d1f0) at syscall+0x5e2 sys/arch/amd64/amd64/trap.c:623 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x3d331b17020, count: 251 End of stack trace.