panic: ffs_valloc: dup alloc
Starting stack trace...
panic(ffffffff830e05f7) at panic+0x1d0 sys/kern/subr_prf.c:229
ffs_inode_alloc(fffffd80790f1770,41c0,fffffd807f7d33a8,ffff8000371c5638) at ffs_inode_alloc+0x96c sys/ufs/ffs/ffs_alloc.c:404
ufs_mkdir(ffff8000371c56a0) at ufs_mkdir+0x113 sys/ufs/ufs/ufs_vnops.c:1112
VOP_MKDIR(fffffd806ee2fcd8,ffff8000371c5800,ffff8000371c5830,ffff8000371c5730) at VOP_MKDIR+0x102 sys/kern/vfs_vops.c:394
domkdirat(ffff8000ffff7bf8,ffffff9c,767cb7cf9770,1c0) at domkdirat+0x179 sys/kern/vfs_syscalls.c:3099
syscall(ffff8000371c59b0) at syscall+0xaf8 mi_syscall sys/sys/syscall_mi.h:179 [inline]
syscall(ffff8000371c59b0) at syscall+0xaf8 sys/arch/amd64/amd64/trap.c:577
Xsyscall() at Xsyscall+0x128
end of kernel
end trace frame: 0x767cb7cf9730, count: 250
End of stack trace.