Same issue than the one I have reported and others are reporting.
In my case it mostly crashes while viewing some PDO objects retrieved from a database with the standar c mysql api or with symfony doctrine.

Tested my issue with version rc1 and there is no crashes, it works perfectly.
Maybe you can try it also with old versions rc1 and rc2, that will help a lot.

( mine is at: http://bugs.xdebug.org/view.php?id=855 )

yeah I've actually reverted back to 2.2rc and I'm happy with it. Although the same issue still happens, it's very rare.

It would be awesome if you could provide:

• a simple script that reproduces it
• a remote debugging log (see: http://xdebug.org/docs/all_settings#remote_log) that accompanies the script

Or, at least the specific source file where you try to view the variable in.

You do say you're on Windows and are using 2.3dev... where did you get that binary from?

Since the other report has been closed because it seems to be fixed, I am adding here additional information of the crash that Toshihiro Izumi at Eclipse PDT forums added for an easily way of reproduce the crash bug in Eclipse while trying to view variables.

Toshihiro Izumi information:

http://www.eclipse.org/forums/index.php/t/364075/
It seems that Xdebug cannot return PDOStatement object to its client...even though xdebug_var_dump can handle it...
It is reproducible with WindowsXP + PHP 5.4.4 CLI + Xdebug 2.2.0 as well.

<?php
$db = new PDO("sqlite:test.db");
$db->query("drop table test");
$obj = $db->query("create table test(dummy integer)");
var_dump($obj);
?>
When stepover reached at var_dump line, PDT tried to get $obj, and php.exe crashed.
Event log(Windows):
Application Failure php.exe 5.4.4.0 in php_xdebug-2.2.0-5.4-vc9.dll 2.2.0.5 at offset 0001919c.

The issue seems to be solved with the new version you pointed me Derick, v2.2.1dev here in the original topic: http://bugs.xdebug.org/view.php?id=855

I have however noticed that debug session is lost in Eclipse after a while with the new version v2.2.1dev, but its stable and there is no crashes. It works the same than version 2.2.0rc1.

In can reliably reproduce this by simply adding a semicolon to the end of a PHP equals statement like this:

<?= $var; ?>

I am closing this, please reopen (with more information if you can), if this is still a problem with the latest versions of PHP and Xdebug.