% grep /proc/[0-9]*/comm % cat $(dirname $(grep kswapd /proc/[0-9]*/comm))/wchan; echo
Do this when irrational CPU usage occurs. Show wchan. If contention_wait, there's a fix. Anyway wchan is helpful. -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. https://bugs.launchpad.net/bugs/721896 Title: kswapd0 100% cpu usage Status in “linux” package in Ubuntu: Incomplete Bug description: After the running the latest ubuntu for at least 2 weeks, I've noticed that kswapd0 started using 100% CPU on one of my cores. However, I have enough of RAM and not using swap (Swap: 11876344k total, 62336k used). The only thing I can do to remove the problem is reboot the system. I'm using Ubuntu 10.04.1 LTS server version without any kernel modifications. To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/721896/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : kernel-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp
