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Description of problem: The following message is output once a minute to /var/log/messages: /usr/sbin/irqbalance: WARNING, didn't collect load info for all cpus, balancing is broken Version-Release number of selected component (if applicable): irqbalance-1.0.3-2.fc16.x86_64 How reproducible: always Steps to Reproduce: echo "IRQBALANCE_BANNED_CPUS=1" >> /etc/sysconfig/irqbalance systemctl restart irqbalance.service .. messages start in /var/log/messages Remove the line from the irqbalance config file, restart, and the message output stops. NOTE: It's important for us to ban the assignment of network device IRQs from CPU0, otherwise packet loss can occur every 10 minutes (the /proc/sys/net/ipv4/ipfrag_secret_interval) for high-speed data links. Actual results: .. as noted above Expected results: .. No message, and CPU0 should be excluded from the irqbalance algorithm. Additional info: The man page documents IRQBALANCE_BANNED_CPUS, but doesn't mention IRQ_AFFINITY_MASK. On the other hand, the config file has some documentation on IRQ_AFFINITY_MASK but no longer mentions IRQBALANCE_BANNED_CPUS. It looks like someone is in the middle of reworking irqbalance??
Thanks for the report, we will take a look.
FYI, issue fixed in upstream commit http://code.google.com/p/irqbalance/issues/detail?id=26
irqbalance-1.0.3-3.fc16 has been submitted as an update for Fedora 16. https://admin.fedoraproject.org/updates/irqbalance-1.0.3-3.fc16
Package irqbalance-1.0.3-3.fc16: * should fix your issue, * was pushed to the Fedora 16 testing repository, * should be available at your local mirror within two days. Update it with: # su -c 'yum update --enablerepo=updates-testing irqbalance-1.0.3-3.fc16' as soon as you are able to. Please go to the following url: https://admin.fedoraproject.org/updates/FEDORA-2012-3118/irqbalance-1.0.3-3.fc16 then log in and leave karma (feedback).
irqbalance-1.0.3-3.fc16 has been pushed to the Fedora 16 stable repository. If problems still persist, please make note of it in this bug report.