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From "Yannick Mercier" <>
Subject Re: [users@httpd] any luck using shared memory for mod_ssl SSLSessionCache ?
Date Mon, 23 Apr 2007 17:01:47 GMT
Yep Ive got some core files in /var/core, one for every time
a child crashes

my SSLMutex is set to pthreads
ive tried different settings for SSLMutex in combination
with different settings for SSLSessionCache and I concluded
that problems happen when SSLSessionCache is set to shm
independently of SSLMutex settings

there is a debugger installed with Sun Studio at /opt/SUNWspro/bin/dbx
but Im not familiar with it dont know how to run a backtrace on the core

I could upload the core file somewhere

On 4/23/07, Sander Temme <> wrote:
> On Apr 23, 2007, at 8:12 AM, Yannick Mercier wrote:
> > [Mon Mar 19 08:45:28 2007] [notice] child pid 27827 exit signal Bus
> > error (10), possible coredump in /opt/apache
> If the httpd child can write to /opt/apache, you're likely to find a
> core file there.  We'd be hugely interested in a backtrace of that.
> That'd give us the state of the system when the crash occurred, and
> would give us insight into what went wrong.
> If you don't find that core file, manipulate the core location to be
> a directory to which the httpd children have write access. See the
> CoreDumpDirectory directive and coreadm(1M).
> What's your SSLMutex? Have you tried different settings for that?
> > Anyone can help fixing this ? any suggestions ? I built apache with
> > Sun Studio 11 under Solaris 8 with mod_authnz_ldap/openldap in 64bit
> > with these flags to the compiler -fast -xarch=v9b -xcode=pic32 , I
> > then compiled mod_perl and mod_evasive using apxs
> I'm not sure how you take backtraces with the debugger that comes
> with Sun Studio.  I have it installed on a VMWare image, but before I
> can try figure this out I have a lot of bears to cook, so if you, or
> someone else, beats me to it that'd be better for all.
> S.
> --
> Sander Temme
> PGP FP: 51B4 8727 466A 0BC3 69F4  B7B8 B2BE BC40 1529 24AF

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