richard blair

PS – I do hope that this information helps others who might encounter the same problem.

Ok, issue resolved. Host provider moved the WP installation to a newer server, with MySQL 5 and PHP 5.2

The post-new.php script is finally resolving, and giving me the posting interface.

Update – I just received the following from UIA, and hopefully it will make sense to someone on the WP development team – UIA is claiming this is a known WP problem:

Suhosin is thinking an overflow attack is going on. We already tried the easy work around by upping the PHP memory limit.

[Wed Apr 27 17:37:12 2011] [error] [client 66.146.1.4] ALERT – canary mismatch on efree() – heap overflow detected (attacker ‘66.146.1.4’, file ‘/usr/local/psa/home/vhosts/go2geiger.com/subdomains/newsite/httpdocs/wp/wp-admin/includes/template.php’, line 1671), referer: https://newsite.go2geiger.com/wp/wp-admin/

Here is the function being called that is triggering the error.

Line 1671 specifically is $screen = (object) array(‘id’ => $screen, ‘base’ => $screen);

function convert_to_screen( $screen ) {
$screen = str_replace( array(‘.php’, ‘-new’, ‘-add’, ‘-network’, ‘-user’ ), ”, $screen);

if ( is_network_admin() )
$screen .= ‘-network’;
elseif ( is_user_admin() )
$screen .= ‘-user’;

$screen = (string) apply_filters( ‘screen_meta_screen’, $screen );
$screen = (object) array(‘id’ => $screen, ‘base’ => $screen);
return $screen;
}

Here is a technical explanation to links to what Suhosin is. We’ve already upgraded to the latest version of PHP 5.2.X on the server to make sure it was not a PHP bug.

https://www.hardened-php.net/suhosin/a_feature_list.html

https://www.suspekt.org/2008/10/12/suhosin-canary-mismatch-on-efree-heap-overflow-detected/

They are telling me that the only possible solution on their end is to recompile the entire shared server, and at this time, they are not committing to me that they’ll do that. (Not sure what diff that’ll make anyway.)

Ideas? Thoughts?

Thanks again – I added the line you suggested to the wp-config.php file, and that didn’t make any difference. Still no posting interface. I’m going to clear the db tables and do a reinstall. Any other ideas?

Standard wp twenty ten 1.2 theme right out of the box, no plugins yet. This is an “out of the box” install. I want to make sure functionality is ok before I started customizing. (I’ve been working with wp since ver 1.5 or thereabouts…) – again, this is a *fresh* install for a new client, not an upgrade.

Ok, here’s what’s really weird. If I open up the new post interface, and even though there is nothing there, if I “save draft” from the publish menu in the right column, it saves as a new draft post, and then I can go in and edit it. Ideas?

Ok, did a fresh download, re-uploaded everything except the wp-content folder. Same thing. ??

I just did the download of wp yesterday. Can’t get much fresher than that. ??

I should also have mentioned that the “Hello World” post comes up, and I can edit it. But no similar interface for a new post.