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From Nick Kew <>
Subject Re: [users@httpd] apache2 core dump
Date Wed, 23 Sep 2009 08:55:47 GMT

On 23 Sep 2009, at 07:32, Igor Cicimov wrote:

> Hi all,
> I get the following core dumps from the apache:
> [chop]
> It's apache 2.2.12 running as reverse proxy on Solaris 9 box with  
> mpm_worker module. Looks like the threads get in some conditional  
> wait state and the process becomes zombie. I can see individual  
> child processes dieing in the log file with segmentation fault.

What tool produced that dump?  Do you have gdb available?
(a gdb backtrace means more to me than what you show).

You mention it's a reverse proxy, and the first thread you show is
a proxy request.  Are the crashes always associated with that,
so we could look there for a cause?  Or is that a meaningless
question because the server does nothing else?

You might also apply Jeff's APR patch at
and see if that helps.

Nick Kew

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