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Date: Tue, 22 Jun 2004 12:10:34 +0100
From: Peter Risdon <peter@circlesquared.com>
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Subject: Re: maxproc limit reached with trivial exec() in cgi script
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Hi Alexander,

Alexander wrote:
> Hello Peter,
> 
>     Try tunning maxusers in your kernel configuration file
>     maxproc = 20 + 16 * maxusers
> 

Thanks for this. Since posting my first message, I have been 
investigating the problem further.

The server on which this behaviour appears also has mod_php installed. 
Running the same script using mod_php does not replicate the problem. It 
only occurs with cgi/suexec. This makes me suspect it is not a problem 
of basic system settings. It also gives me an avenue for workarounds.

I notice that there was an issue with apache suexec failing to observe 
maxproc settings and that this was fixed fairly recently through a patch 
which has been included in the port.I wonder whether this patch might be 
at the root of the problem.

I think I need to try some tests on other builds and perhaps with Linux 
as a control to see whether I can replicate the same behaviour.

Peter.