Does /var/shm still need to be mounted?

From: Cesar Eduardo Barros (
Date: Thu May 25 2000 - 19:47:28 EST

In 2.3.99-pre10-3, Documentation/Changes has the following lines:

> To use System V shared memory, you have to mount the shm filesystem
> somewhere. You can do that automatically by adding this line to /etc/fstab:
> none /var/shm shm defaults 0 0
> Remember to create the mountpoint directory; it does not have to be /var/shm.

However, if I recall correctly, the checks for it being mounted were removed
from shm.c a couple of pre-patches ago. Do we still need to mount shmfs or is
the documentation wrong?

Cesar Eduardo Barros

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