Drupal 6 & 7 running on same host

[lance04]

Has anyone managed Drupal 7 and Drupal 6 sites on the same VPS?

After several Drupal 6 and one (toy) Drupal 7 site ran for several months problems developed with the message "PDO required" and Drupal 7 shut down.

A support ticket promptly got what was requested but not what was wanted.

PDO was installed, the Drupal 7 experiment is back in business but all Drupal 6 sites are shut down with either:

: Function ereg() is deprecated in ... /includes/file.inc on line 895.
or
Fatal error: Allowed memory size of 33554432 bytes exhausted in ... /sites/all/modules/ ctools-6.x-1.8 /ctools/views_content/ plugins/content_types/ views.inc on line 190 (spaces inserted to fit on this page)

I don't know if the PDO requirement could be placed in the Drupal 7 root ... and I don't see how something in the VPS root would affect sites for which it was not designed and has no function.

Has any one else been fool enough to experiment with this?

Warren

[lance04]

Follow-up
There were two errors coincidentally occuring at the time of the HG upgrades.

Increasing PHP memory in one settings.php file allowed access to and solved the memory error in one site.

The other error was in file permissions in ctools. Following the instructions in http://drupal.org/node/447064 I changed three folder permissions to 777 in (sites/all/modules/files/ctools/css) until the error was cleared out and then changed two back to normal, leaving folder /css at 777, on the same site.

There is a long way to go and I'll be back if subsequent events do not support these conclusions but this will amend the presumptions in the prior post.

Warren

[wesslayneb]

Im sure about the PHP Memory Error, sorry.

But about the file permissions issue:
Hostgator does not allow 777 perms because they are a security issue and I have never had any issue with this. If you need any more info refer to this kb article: http://support.hostgator.com/article...77-permissions

[lance04]

Permissions changed /css to 755.

[wesslayneb]

That should fix that issue.