panic: ffs_valloc: dup alloc
Starting stack trace...
panic(ffffffff834090a9) at panic+0x1ba sys/kern/subr_prf.c:229
ffs_inode_alloc(fffffd806e42f6c8,2000,fffffd807f7d7618,ffff80002a87f550) at ffs_inode_alloc+0x96c sys/ufs/ffs/ffs_alloc.c:404
ufs_makeinode(2000,fffffd80600602e8,ffff80002a87f770,ffff80002a87f7a0) at ufs_makeinode+0xcb sys/ufs/ufs/ufs_vnops.c:1732
ufs_mknod(ffff80002a87f610) at ufs_mknod+0x5b sys/ufs/ufs/ufs_vnops.c:167
VOP_MKNOD(fffffd80600602e8,ffff80002a87f770,ffff80002a87f7a0,ffff80002a87f6a0) at VOP_MKNOD+0x102 sys/kern/vfs_vops.c:121
domknodat(ffff80003c944a68,ffffff9c,400000000000,2000,2e00) at domknodat+0x47e sys/kern/vfs_syscalls.c:1638
syscall(ffff80002a87f940) at syscall+0x97e sys/arch/amd64/amd64/trap.c:577
Xsyscall() at Xsyscall+0x128
end of kernel
end trace frame: 0xf77dc5a980, count: 249
End of stack trace.