[xdebug-general] Re: apache worker mpm crashes with xdebug 2.0.2

From: Derick Rethans <derick[@]xdebug.org>
Date: Mon, 17 Mar 2008 10:02:06 +0100 (CET)

On Thu, 13 Mar 2008, Yuval Hager wrote:

> Hi,
> Xdebug is an amazing extension, and it keeps my sanity when trying to debug
> PHP apps using open source tools.
> Ever since I switched to apache worker MPM, I am getting intermittent crashes
> when Xdebug is enabled (without even really debugging anything).
> I am running Gentoo on amd64, with apache 2.2.8 and php 5.2.6 (happened with
> 5.2.5 as well)

You really should not be running worker mode.

> This is the last line from apache's error log:
> [Thu Mar 13 13:37:17 2008] [notice] child pid 20517 exit signal Segmentation
> fault (11), possible coredump in /tmp
> And a stack trace from the core file:

A stack trace is not useful without symbols, so please use an xdebug dll
compiled with symbols.

> I have confirmed this does not happen with prefork MPM, or when xdebug is not
> installed. It looks to me like a thread safety issue..

Yeah, quite possible :/ But there is *really* no reason to use


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Received on Mon Mar 17 2008 - 10:02:06 GMT

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