white screen after login

[GoogleCodeExporter]

What steps will reproduce the problem?
1. In SP, click 'Test authentication resources' > 'drupal-userpass'
2. Login (E.g. admin credentials)

What is the expected output? What do you see instead?

Expected output = redirect to Drupal SP page and login over there
I see = White screen at simplesaml/module.php/core/loginuserpass.php

What version of the product are you using? On what operating system?
Latest version
Ubuntu

Please provide any additional information below.
I wonder if the problem could be caused by a misconfiguration on the Idp. 
However, I'm not sure about this. Therefore I would like to know if this 
behaviour is 'normal'. Why does the drupalauth module doesn't send a redirect?

Regards,
W

Original issue reported on code.google.com by wouter.a...@gmail.com on 5 Aug 2011 at 7:53

[GoogleCodeExporter]

Hi,

I have just had this problem and it was down to having 'store.type' => 
'memcache', but not actually having memcache installed on the server or the 
php-memcache extension installed.

Kevin

Original comment by kevinric...@gmail.com on 22 Feb 2012 at 1:16

[GoogleCodeExporter]

Hi again, 

correction it was at the stage before that I had the white screen due to lack 
of memcache install. I have now hit this problem :(

Kevin

Original comment by kevinric...@gmail.com on 23 Feb 2012 at 9:20

[GoogleCodeExporter]

I'm having the same problem. Is there any more documentation of any sort? How 
do I do something like the polder consortium?

Original comment by dallas.d...@gmail.com on 10 Jul 2012 at 5:32

[GoogleCodeExporter]

Just to follow up, I didn't get the whitescreen anymore after trying it with a 
blank drupal 7.14 installation. I looked at the logs, and it looks like there 
was something going on with entity_load not being defined so there may be a 
load order issue with my older version of drupal (7.9) Kevin, look at your 
server logs to try and track it down.

Original comment by dallas.d...@gmail.com on 11 Jul 2012 at 5:08