panic: ffs_valloc: dup alloc
Starting stack trace...
panic(ffffffff8346918e) at panic+0x1ba sys/kern/subr_prf.c:229
ffs_inode_alloc(fffff5006cbb5500,2000,fffff50007ffd750,ffff8000338bfb50) at ffs_inode_alloc+0x94e
ufs_makeinode(2000,fffff50065cdd010,ffff8000338bfd68,ffff8000338bfd98) at ufs_makeinode+0xcd sys/ufs/ufs/ufs_vnops.c:1759
ufs_mknod(ffff8000338bfc10) at ufs_mknod+0x5b sys/ufs/ufs/ufs_vnops.c:167
VOP_MKNOD(fffff50065cdd010,ffff8000338bfd68,ffff8000338bfd98,ffff8000338bfc98) at VOP_MKNOD+0x101 sys/kern/vfs_vops.c:121
domknodat(ffff80002a79e550,ffffff9c,200000000000,2000,70f) at domknodat+0x469 sys/kern/vfs_syscalls.c:1579
syscall(ffff8000338bff20) at syscall+0x962 mi_syscall sys/sys/syscall_mi.h:-1 [inline]
syscall(ffff8000338bff20) at syscall+0x962 sys/arch/amd64/amd64/trap.c:783
Xsyscall() at Xsyscall+0x128
end of kernel
end trace frame: 0xe6df9e16d80, count: 249
End of stack trace.