panic: ffs_valloc: dup alloc
Starting stack trace...
panic(ffffffff830e1d58) at panic+0x1d0 sys/kern/subr_prf.c:229
ffs_inode_alloc(fffffd807e434110,41c0,fffffd807f7d30d0,ffff800031fdfb28) at ffs_inode_alloc+0x96c sys/ufs/ffs/ffs_alloc.c:404
ufs_mkdir(ffff800031fdfb90) at ufs_mkdir+0x113 sys/ufs/ufs/ufs_vnops.c:1112
VOP_MKDIR(fffffd806ee0c618,ffff800031fdfcf0,ffff800031fdfd20,ffff800031fdfc20) at VOP_MKDIR+0x102 sys/kern/vfs_vops.c:394
domkdirat(ffff800031b8ef70,ffffff9c,7b8d965d7bf0,1c0) at domkdirat+0x179 sys/kern/vfs_syscalls.c:3100
syscall(ffff800031fdfea0) at syscall+0xaf8 mi_syscall sys/sys/syscall_mi.h:179 [inline]
syscall(ffff800031fdfea0) at syscall+0xaf8 sys/arch/amd64/amd64/trap.c:577
Xsyscall() at Xsyscall+0x128
end of kernel
end trace frame: 0x7b8d965d7bb0, count: 250
End of stack trace.