panic: bad dir
Stopped at      db_enter+0x18:  addq    $0x8,%rsp
    TID    PID    UID     PRFLAGS     PFLAGS  CPU  COMMAND
*260709  23138      0         0x2          0    0  ifconfig
db_enter() at db_enter+0x18 sys/arch/amd64/amd64/db_interface.c:398
panic() at panic+0x15c sys/kern/subr_prf.c:212
ufs_dirbadentry(ffff8000149c8328,ffff8000149c8328,3f20f93f785ae5d4) at ufs_dirbadentry
VOP_LOOKUP(fffffd803efda7d0,ffff8000149c83d0,ffff8000149c8390) at VOP_LOOKUP+0x5b sys/kern/vfs_vops.c:90
unveil_find_cover(fffffd803efda7d0,ffff8000149e84c8) at unveil_find_cover+0x139 sys/kern/kern_unveil.c:290
unveil_add_vnode(ffff8000ffff66a0,fffffd803efda7d0,0) at unveil_add_vnode+0x23c sys/kern/kern_unveil.c:471
unveil_add(ffff8000149e84c8,ffff8000149c8998,ffff8000149c8a63) at unveil_add+0x273 sys/kern/kern_unveil.c:597
sys_unveil(ffff8000149e84c8,ffff8000149c8ad0,ffff8000149c8b40) at sys_unveil+0x405 sys/kern/vfs_syscalls.c:937
syscall(ffff8000149c8bb0) at syscall+0x511
Xsyscall(6,72,1,72,7f7ffffcce48,19fd79608ac8) at Xsyscall+0x128
end of kernel
end trace frame: 0x7f7ffffccdd0, count: 5
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