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From: Mel Flynn <mel.flynn+fbsd.questions@mailing.thruhere.net>
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Date: Thu, 16 Jul 2009 10:25:35 -0800
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Cc: Michael Doyle <itmngr@cooperationireland.org>
Subject: Re: Problems following PHP upgrade
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On Thursday 16 July 2009 08:06:19 Michael Doyle wrote:

> /usr/local/www/apache22/logs/httpd-error.log contains multiple lines
> of the form:
> [Thu Jul 16 16:13:33 2009] [notice] child pid xxx exit signal Illegal
> instruction (4)

This would suggest that you compiled for the wrong processor. If that's not 
the case, are you using the sqlite extension (inlined assembly)?
One other candidate is zend_alloc.c, but the diff with 5.2.9 doesn't show me 
anything changed in that area.
-- 
Mel