#27183 [Ver]: userland stream wrapper segfaults on stream_write

From: Date: Tue, 10 Feb 2004 21:02:59 +0000
Subject: #27183 [Ver]: userland stream wrapper segfaults on stream_write
References: 1  Groups: php.bugs 
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ID: 27183 Updated by: chregu@php.net Reported By: chregu@php.net Status: Verified Bug Type: Filesystem function related Operating System: Mac OS X 10.3 PHP Version: 4CVS-2004-02-08 (stable) New Comment: moriyoshi's patch works for me. Previous Comments: ------------------------------------------------------------------------ [2004-02-09 13:50:49] moriyoshi@php.net Here's the patch: http://www.voltex.jp/downloads/bug27183- preliminary.diff.txt The error is obvious: one shouldn't store a transient pointer to a transient zval that resides in the stack frame :) ------------------------------------------------------------------------ [2004-02-09 13:33:16] moriyoshi@php.net Finally I managed to reproduce the crash. It looks like --enable-debug suppresses the bus error. Really strange... Another endian issue? ------------------------------------------------------------------------ [2004-02-09 05:44:31] sniper@php.net I get the same crash with PHP 4.3.3.. # uname -a Darwin foobar 6.8 Darwin Kernel Version 6.8: Wed Sep 10 15:20:55 PDT 2003; root:xnu/xnu-344.49.obj~2/RELEASE_PPC Power Macintosh powerpc ------------------------------------------------------------------------ [2004-02-09 05:25:40] chregu@php.net it crashes even with the default config: phpinfo() PHP Version => 4.3.5RC2 System => Darwin chregu.local 7.2.0 Darwin Kernel Version 7.2.0: Thu Dec 11 16:20:23 PST 2003; root:xnu/ xnu-517.3.7.obj~1/RELEASE_PPC Power Macintosh Build Date => Feb 9 2004 11:18:45 Configure Command => './configure' '--with-expat-dir=/ sw/' '--with-zlib' ------------------------------------------------------------------------ [2004-02-09 04:27:46] chregu@php.net here's my config line './configure' '--with-config-file-path=/usr/local/bxphp/ apache/conf' '--prefix=/usr/local/bxphp/' '--with-apxs=/ usr/local/bxphp/apache/bin/apxs' '--with-dom=/sw/' '-- with-tidy=/usr/local/' '--with-zlib' '--with-mysql=/sw/' '--with-png-dir=/sw/' '--with-expat-dir=/sw/' '--with- iconv=/sw/' '--with-iconv-dir=/sw/' '--with-xml=/sw/' '--with-gd' '--with-jpeg-dir=/sw/' '--enable-debug=no' '--with-mime-magic=/sw/share/file/magic.mime' '--with- dom-xslt=/sw/' '--with-dom-exslt=/sw/' I'll try with a minimal set of extensions and see if the problem persists. ------------------------------------------------------------------------ The remainder of the comments for this report are too long. To view the rest of the comments, please view the bug report online at http://bugs.php.net/27183 -- Edit this bug report at http://bugs.php.net/?id=27183&edit=1

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