panic: ffs_valloc: dup alloc
Starting stack trace...
panic(ffffffff830b1ca1) at panic+0x1ba sys/kern/subr_prf.c:229
ffs_inode_alloc(fffffd806e023b40,41ed,fffffd807f7d75b0,ffff80003666f0a8) at ffs_inode_alloc+0x96c sys/ufs/ffs/ffs_alloc.c:404
ufs_mkdir(ffff80003666f110) at ufs_mkdir+0x113 sys/ufs/ufs/ufs_vnops.c:1112
VOP_MKDIR(fffffd8061e7e6f0,ffff80003666f270,ffff80003666f2a0,ffff80003666f1a0) at VOP_MKDIR+0x102 sys/kern/vfs_vops.c:394
domkdirat(ffff8000376471e0,ffffff9c,7946e5b98fa0,1ff) at domkdirat+0x179 sys/kern/vfs_syscalls.c:3099
syscall(ffff80003666f420) at syscall+0x97e sys/arch/amd64/amd64/trap.c:577
Xsyscall() at Xsyscall+0x128
end of kernel
end trace frame: 0x7946e5b99030, count: 250
End of stack trace.