use shmfs

From: Hua Zhong (
Date: Sat Dec 15 2001 - 19:26:15 EST


Currently I'm using shmfs as a volatile storage. I am using Monta Vista's
kernel (2.4.2). I added the following line in /etc/fstab:

tmpfs /dev/shm shm defaults 0 0

# df /dev/shm
Filesystem 1k-blocks Used Available Use% Mounted on
tmpfs 0 0 0 - /dev/shm

the "0" number of blocks seems fishy.

I cannot write to the filesystem. write returns EINVAL. I can create an
empty file, however.

What should I do to make it work? Thanks.

By the way, I know tmpfs is a replacement of shmfs, but it's not in the
2.4.2 kernel I am using (can't find in config). Is it in any newer kernels
(especially 2.4.9)? Is it stable enough?


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This archive was generated by hypermail 2b29 : Sat Dec 15 2001 - 21:00:30 EST