phpMyAdmin

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From 2.11.3 ChangeLog:
- [display] Division by zero when showing all records (page selector)

If you can reproduce a division by zero with 2.11.3, please reopen.

sorry, I don't know more than what is said in the links.
You should also check pma 2.11.3 (2.11.1 is a bit outdated)

Yes, I've tried to increase that values with no success. Are there any
hints about the required values?

did you adjust the suhosin settings in php.ini according to the needs of
pma?

see http://www.hardened-php.net/hphp/troubleshooting.html
and http://www.hardened-php.net/suhosin/configuration.html