OK guys, thanks very much for your help.

I've managed to get a backtrace by following Gianni's suggestion and
running httpd under gdb.

Regards,
Philip Payne
================================
Philip Payne wrote:
> 
> Hi,
> 
> Does anyone have any suggestions on what else I can try to get a core
> dump to track down a segmentation fault????
> 
> I've tried the various suggestions in the mod_ssl FAQ including:
>  1) Setting CoreDumpDirectory to /tmp
>  2) Starting Apache as a non-root user (Apache failed to start because
> of privilege problems).
>  3) Running the child servers as root (Apache refused to start for
> security reasons).
>  4) Starting Apache in single-process mode using httpd -X .
> but the segmentation fault fails to produce a core dump.
> 
> I'm using Apache/1.3.11 (Unix) PyApache/4.19 mod_ssl/2.5.1 OpenSSL/0.9.5
> on Redhat Linux 6.1.
> 
> I'm running a single Apache server for both non-SSL and SSL access.
> 
> It all works perfectly except that child servers die with (e.g.):
>    [notice] child pid 3732 exit signal Segmentation fault (11)
> under the following conditions which are 100% reproducible:
>  1) The child server has been used for at least one SSL access.
>  2) The child server receives a non-SSL CGI POST request ==>
> segmentation fault.
> CGI GET requests don't have this problem.
> 
> OpenSSL was a absolutely standard install.
>

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