ID: 14783
Updated by: [EMAIL PROTECTED]
Reported By: mfkahn2 at yahoo dot com
-Status: Open
+Status: Closed
Bug Type: DOM XML related
Operating System: RH6.2/Apache/libxml2.4.12
-PHP Version: CVS Jan. 1 2002
+PHP Version: 4CVS Jan. 1 2002
Previous Comments:
------------------------------------------------------------------------
[2002-01-01 16:14:34] mfkahn2 at yahoo dot com
My configuration notes:
- PHP built as DSO, apache with disable-rule=EXPAT
Here's my PHP build configuration:
./configure --with-pgsql --prefix=/usr/local/apache
--with-apxs=/usr/local/apache/bin/apxs --with-pdflib=shared
--with-dom=/usr/local/lib --enable-xslt --with-xslt-sablot=/usr/local
--with-expat=/usr/local --with-zlib --with-gd=/usr/local
--with-jpeg-dir=/usr --with-png-dir=/usr --with-t1lib=/usr/local
Another note:
I didn't find issues every time I unlinked a node, only when I unlinked
(it seems) all the nodes selected--either from an XPath query or a
children() call. And I noted that the did in fact occur during
clean-up, not the unlink calls (no real debug, just through writing
error_log messages at certain points in the PHP script).
------------------------------------------------------------------------
[2002-01-01 12:45:41] [EMAIL PROTECTED]
Did the same before I replied and it didn't crash, hm.
What were your ./configure options?
Do you have another small, self-contained sample?
Feedback.
------------------------------------------------------------------------
[2002-01-01 11:15:45] mfkahn2 at yahoo dot com
Just checked out and built from CVS this morning (2002/1/1). The test
script still crashes.
------------------------------------------------------------------------
[2002-01-01 07:11:54] [EMAIL PROTECTED]
This has been fixed in CVS.
------------------------------------------------------------------------
[2001-12-31 16:16:27] mfkahn2 at yahoo dot com
Symptoms:
- using unlink() causes segfault
Script to reproduce:
<?php
$xml = <<<END_XML
<?xml version="1.0"?>
<test>
<foo id="x">Hello</foo>
<foo id="y">World</foo>
</test>
END_XML;
$dom = xmldoc($xml);
// this so I can see it.
header('Content-type: text/plain');
$ctx = $dom->xpath_new_context();
$res = xpath_eval($ctx,"//foo");
foreach ($res->nodeset as $child) {
$child->unlink();
}
echo $dom->dumpmem();
?>
Other notes:
- some cursory debugging I did suggested that it was the cleanup
routines at the end of the script that were causing the crash. Looking
at php_domxml.c, the recursive node memory cleanup appears to be choking
on a pointer already freed during the unlink() call.
------------------------------------------------------------------------
--
Edit this bug report at http://bugs.php.net/?id=14783&edit=1
