Python multiprocessing: Permission denied

Question

I\'m getting an error when trying to execute python program that uses multiprocessing package:

  File \"/usr/local/lib/python2.6/multiprocessing/__init__.py\         


        

Answer 1

In my OVH VPS Classic, this error was caused by a loop in /dev/shm and /run/shm. Both were symlinks linking to each other. So as root here is what I did:

# rm /dev/shm
# mkdir /dev/shm
# chmod 777 /dev/shm
# nano /etc/fstab

Then I modified the shm line from:

none /dev/shm tmpfs rw 0 0

To:

none /dev/shm tmpfs rw,nosuid,nodev,noexec 0 0

Restarted the server... And that fixed the problem! Alternatively you can mount shm manually:

# mount /dev/shm

Hope this helps :-)