ID:               42893
 Comment by:       ryan dot oliver at dse dot vic dot gov dot au
 Reported By:      hoffie at gentoo dot org
 Status:           Open
 Bug Type:         Reproducible crash
 Operating System: Linux on ia64
 PHP Version:      5.2.5
 New Comment:

Same issue here with php-5.2.6 on ia64 (SGI Prism w SLES 9 SP3) using
gcc-4.2.4 + binutils-2.18.0.

> As soon as debugging symbols are enabled (CFLAGS=-g or
> ./configure --enable-debug) the problem disappears ...

Issue appears from my rudimentary tests to be due to compiler
optimizations, debug symbols have no bearing on the issue

Compiled with CFLAGS=-O0 CXXFLAGS=-O0 no segfault occurs.
Compiled with CFLAGS=-O1 CXXFLAGS=-O1 no segfault occurs.

So whatever the issue is, it is exposed by one/some of the 27 -O2 gcc
optimizations.


Previous Comments:
------------------------------------------------------------------------

[2007-11-17 09:07:52] hoffie at gentoo dot org

I've only tried Gentoo and Debian so far, but I think this should be
sufficient. If it fails on two distros and previous versions of php
worked (and still work) then it's likely that it is a bug which got
introduced with php-5.2, isn't it?

If you still want me to try it on another distro, please point me to
some resource to easily install one (like Debians debootstrap).

------------------------------------------------------------------------

[2007-11-17 01:56:02] [EMAIL PROTECTED]

Can you reproduce this with any linux distro on that machine?

------------------------------------------------------------------------

[2007-11-12 19:26:18] hoffie at gentoo dot org

Still reproducable with gcc-4.2.2 and php-5.2.5 (final).

------------------------------------------------------------------------

[2007-11-12 17:52:24] hoffie at gentoo dot org

We are not using gcc-3.x, but gcc-4.1(.2). Anyway, I've tried with
4.2.0 (as it was already installed) and it fails for the same reasons.
I'm going to try 4.2.2, I can probably give you results later.

------------------------------------------------------------------------

[2007-11-12 10:32:57] [EMAIL PROTECTED]

This looks like a broken binary, I've seen similar problems on SPARC
with GCC 3.x unable to generate working PHP executable.
Try newer/other GCC version.

------------------------------------------------------------------------

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