Blank page after 1.3 upgrade - zend_mm_heap corrupted

I receive the following error after upgrading Piwik to 1.3 version on my apache error.log:

zend_mm_heap corrupted
[Mon Apr 18 23:38:02 2011] [error] child died with signal 11

And… blank page on browser :frowning:
Plase, help!


cache cleaned, server rebooted, etc. and no luck

Should I roll back to 1.2.1? How?

please update your PHP, disable APC, this is not a piwik bug

I think I do not have APC, I don’t see at phpinfo. ¿?

If it’s not a Piwik bug, only affects piwik…

I think I have latest version:

root@vps-283:/# apt-get upgrade php php-*
Reading package lists… Done
Building dependency tree
Reading state information… Done
0 upgraded, 0 newly installed, 0 to remove and 0 not upgraded.

Can you try again without your auto_append_file and auto_prepend_file scripts?

Solved by removing that (in fact, I moved piwik to a subdomain) :S

That files only gzipped the html response, why the zend_mm_heap corrupted?

Looks like you found a PHP bug. Unfortunately, it’s hard to diagnose when using mod_php. And the PHP devs tend to mark these types of crashes as bogus when Suhosin is involved and bug fixes are backported to an older php version.

Anthon would it be possible to detect this setting and throw a warning during install?

If it crashes php, the detection will never be displayed to the user.

We already have checks in servestaticfile to disable compression if either of the above settings are non-empty.

I am curious to see the code for those scripts though.

This is the code:

It executes in .php, .css and .js, for gzip, and caching and minifing css and js


$charset="; charset=utf-8";

$pathinfo = pathinfo($_SERVER['PHP_SELF']);
$extension = $pathinfo["extension"];
//ini_set('zlib.output_compression_level', 8);
if($extension=="css") { header("Content-type: text/css$charset"); $cache=true; }
else if($extension=="js") { header("Content-type: text/javascript$charset"); $cache=true; }
else header("Content-type: text/html$charset");

if($cache) {

    Header("HTTP/1.1 304 Not Modified");


header("Cache-Control: must-revalidate");
$offset=6*60*60; //6-1 hour
$ExpStr="Expires: ".gmdate("D, d M Y H:i:s",time()+$offset)." GMT";


if($cache && $minify) {
	if($extension=="js") {
		echo JSMin::minify($javascriptCode);
	else if($extension=="css") {
		echo cssmin::minify($cssCode);
else ob_end_flush();


I’m guessing the blank page is because it doesn’t set the Content-Encoding header but always calls:


Also, since the PHP default is text/html, and the script being wrapped may set its own content type, I would probably omit this line:

else header("Content-type: text/html$charset");

I had to comment out the in my php.ini to get it working. Solaris 10 php-5.3.2

% /opt/pkg/bin/php -v
PHP 5.3.2 (cli) (built: Jun 29 2010 16:09:59)
Copyright © 1997-2010 The PHP Group
Zend Engine v2.3.0, Copyright © 1998-2010 Zend Technologies

% /opt/pkg/sbin/apachectl -v
Server version: Apache/2.2.15 (Unix)
Server built: Jun 21 2010 16:56:21

php.ini changes: