Shared memory not enabled in 2.4.0?

Steven_Snyder@3com.com
Mon, 8 Jan 2001 13:11:19 -0600


For some reason shared memory is not being enabled on my system running kernel
v2.4.0 (on RedHat v6.2, with all updates applied).

Per the documentation I have this line in my /etc/fstab:

none /dev/shm shm defaults 0 0

Yes, I have created this subdirectory:

# ls -l /dev | grep shm
drwxrwxrwt 1 root root 0 Jan 7 11:54 shm

No complaints are seen at startup, yet I still have no shared memory:

# cat /proc/meminfo
total: used: free: shared: buffers: cached:
Mem: 130293760 123133952 7159808 0 30371840 15179776
Swap: 136241152 0 136241152
MemTotal: 127240 kB
MemFree: 6992 kB
MemShared: 0 kB
Buffers: 29660 kB
Cached: 14824 kB
Active: 3400 kB
Inact_dirty: 37872 kB
Inact_clean: 3212 kB
Inact_target: 4 kB
HighTotal: 0 kB
HighFree: 0 kB
LowTotal: 127240 kB
LowFree: 6992 kB
SwapTotal: 133048 kB
SwapFree: 133048 kB

Is there some configuration option which I missed? Some trick not mentioned in
the doc?

Thank you.

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