[H-GEN] Apache segfaulting... how to debug

[Michael Anthon]

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Greg Black wrote:

> The next thing I would do is build it all again without threads
> and see if the problem goes away.  If this fixes it, I'd then
> see what the performance was like in that form.  If it doesn't
> suck too much, I'd leave it like that and pronounce myself quite
> satisfied.  I don't think threads are the solution to anything
> in the context of this sort of software[1].

That would put it back to where I was initially.  There have been all 
sorts of upgrades to various things on this system since I first noticed 
this fault (which was pretty much when I built the machine 18 months or 
so ago... actually, might have even been older than that).  All the libc 
stuff has been upgraded several times, apache has had several revisions 
along with PHP.  The only thing that has remained constant is the oracle 
libraries.  The more I think about it the more likely it seems that this 
is the culprit (and not something I would upgrade given that I now 
believe it's not causing me any real problems).  I am hoping to have 
some new hardware to build up a new system on soon, I might give 9i a go 
and see if that remedies the problem.

> Not really -- it's a case of something writing on memory that it
> doesn't own.  Tracking down this class of (all-too-common) bugs

Ahhh, ok, that makes more sense then.

Thanks,

Michael


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