Permissions Issue on Debian

[wh1t3h47]

Repro: When used in Kali Linux (Debian):

./bin/vramfs /tmp/vramfs 2GB -d 0 -f
allocating vram...
Ignoring invalid max threads value 4294967295 > max (100000).
mounted.

ls /tmp -lh | grep vramfs
d????????? ? ?    ?       ?            ? vramfs
                                                                                                                      
ls /tmp/vramfs    
ls: cannot access '/tmp/vramfs': Permission denied

cat /etc/debian_version 
kali-rolling

uname -a
Linux debian 6.6.9-amd64 #1 SMP PREEMPT_DYNAMIC Kali 6.6.9-1kali1 (2024-01-08) x86_64 GNU/Linux

[wh1t3h47]

I solved the issue by running as root

Maybe implement a root check?

[leemgs]

And then, how did you verify the vramfs effect after enabling swap space (e.g., ./bin/vramfs /tmp/vramfs 2GB -d 0 -f)to solve the shortage of GPU memory space on Debian 6.6.9?

[jlo62]

Simply running as root solves it here to, but I am unable to somehow access the vramfs as the non-root user.

as root:

drwxrwxrwx 2 janluca janluca 4096 Oct  3 14:00 vram

not root:

d????????? ? ?         ?            ? vram

I'd like to compile on the vramfs as a normal user, is this possible?