ID: 14037
User updated by: [EMAIL PROTECTED]
Reported By: [EMAIL PROTECTED]
Old Status: Feedback
Status: Open
Bug Type: DOM XML related
Operating System: Linux
PHP Version: 4.0.6
New Comment:
Here's the explanation from [EMAIL PROTECTED] (our resident C expert):
In the ext/domxml/php_domxml.c there is a destructor function named
php_free_xml_doc(). In the loop code that [EMAIL PROTECTED] has posted this destructor
function gets invoked after the end of the loop which for some reason won't free up
memory. We thought maybe the xmldoc memory
should be released within the loop that is after getting an xmldoc object into $doc
and before overwriting it through the next iteration of the loop. So we added our own
xmldocfree( $doc ) function and put it in the loop. We had no memory leak anymore but
then we encountered segfaults in the apache log file which of course was because of
the native destructor being invoked on an already released object. So maybe even our
xmldocfree wasn't working properly and the segfault was somehow cleaning up everything
behind. But anyway we are happy now because the
memory leak is gone and the segfault does not effect our functionality.
Previous Comments:
------------------------------------------------------------------------
[2001-11-29 09:48:25] [EMAIL PROTECTED]
By patching what? ext/domxml?
FYI, apache doesn't release memory it once grabs. Thats how it works.
Feedback.
------------------------------------------------------------------------
[2001-11-29 09:42:22] [EMAIL PROTECTED]
As stated, the memory used by Apache sky rockets... On my machine, it goes up to about
90% or so.
We're working on a patch to this bug, we've got the memory leak fixed by closing the
file using a function we wrote, but unfortunately that ended up causing a segfault in
Apache.
When we fix that problem, we'll post the fix here.
------------------------------------------------------------------------
[2001-11-29 09:38:04] [EMAIL PROTECTED]
What do you define as 'memory leak' ? Error output in apaches log?
Feedback.
------------------------------------------------------------------------
[2001-11-12 17:01:15] [EMAIL PROTECTED]
<?php
echo "starting test ...<p>";
flush();
for ($i=0; $i<100; $i++)
{
$doc = xmldocfile( "SOMEXMLFILE" );
}
echo "test finished";
?>
When this is done on Apache, the memory used by Apache sky rockets. The larger the
XML file, the larger the memory leak.
------------------------------------------------------------------------
Edit this bug report at http://bugs.php.net/?id=14037&edit=1
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