[Dovecot] Dovecot imap processes pinning CPU

[Steffen Weber]

Just saw this thread on 
http://dovecot.org/list/dovecot/2008-December/035707.html and I hope 
that this email gets through (I'm not subscribed).

The described behaviour seems to be a bug in Linux 2.6.27.8: 
http://lkml.indiana.edu/hypermail/linux/kernel/0812.1/00006.html

This fix seems to work for me: 
http://lkml.indiana.edu/hypermail/linux/kernel/0812.1/00998.html

It is not fixed in 2.6.27.9, but will be fixed in 2.6.27.10 according to 
Greg KH: http://lkml.org/lkml/2008/12/14/162

Hope that helps
Steffen