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From Cliff Skolnick <>
Subject Re: sigalrm and such
Date Thu, 03 Jun 1999 09:32:00 GMT

Greg -

Is the system paging alot?  I've seen solaris get really stuck (yep, solaris
bugs) trying to handle lots of paging while signal are being thrown around.  
I've never tracked this too far since when I see a system like that I
usually add more memory and/or drop maxclients. :)

The fact the 2.7 was giving you panics might also hint that something is
stressed in the system.  Check that your maxclients setting is not too high
for your memory, some poorly written CGIs can also grab huge hunks of
memory and start the server paging.


On Wed, 2 Jun 1999, Graham Leggett wrote:

> Dean Gaudet wrote:
> > Do you have keepalive enabled?
> Yes, I do.
> > Could you try the -DALLOC_STATS thing?
> Um... sorry to sound dumb, but how do I add this to the ./configure
> process? I've looked at ./configure --help and the Makefile, but nothing
> seems obvious.
> Do you have any idea why the "stuck" processes would ignore all the
> signals? I would imagine some part of the code is setting the signals to
> be ignored, but then not resetting them back to as they were. The
> scoreboard file indicates that a process can work any amount of times,
> from as few as 5 or 6 to as many as 25 times correctly before getting
> "stuck", so it's intermittent, but not infrequent.
> Regards,
> Graham
> -- 
> -----------------------------------------
>		"There's a moon
> 					over Bourbon Street
> 						tonight...

Cliff Skolnick          | "They that can give up essential liberty to obtain
Steam Tunnel Operations |  a little temporary safety deserve neither liberty         |  nor safety."   |                   -- Benjamin Franklin, 1759

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