Description of problem: /etc/logrotate.d/cups should reload, not restart, cups after rotating the logs. Version-Release number of selected component (if applicable): cups-1.2.5-1.fc5.4 How reproducible: 100%
Hmm, actually even reload isn't safe. Best not to poke cupsd at all in the logrotate script.
Fixed in update: cups-1.2.7-1.7.fc6
CUPS ought to re-open its log files if logrotate has rotated them, otherwise we end up continuing to write to error_log.1 etc.
Fixed in update: cups-1.2.10-3.fc6.