Re: Locking shared memory

Allen, Jack wrote:

I do not think the error is because of the first explanation of ENOMEM
So my question is based on the second one.

Is there a kernel or vm parameter that controls how much memory a
process can utilize?

I am running RH AS 4.4 32 bit with 2GB of physical memory.

Thanks in advance:
Jack Allen


G'day Jack,

There is memlock limit in shell, changed using the ulimit command from
bash. See ulimit -l:

$ ulimit -l
32


The actual hard and soft limits are controlled on a Red Hat system using
the pam_limits pam module, using the config file /etc/security/limits.conf

Check the doc's from RHEL4 for the pam module for details :

/usr/share/doc/pam-0.77/txts/README.pam_limits

This may well be where the ENOMEM came from, as the default limit that a
user may lock memory is 32kB.

Cheers,
Michael

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