The description seems to indicate that this bug was most likely fixed upstream. Given the age of the bug, I'll assume this is not relevant any longer. Please file a new bug if you're facing similar issues.
** Changed in: chromium-browser (Ubuntu) Status: Confirmed => Invalid -- You received this bug notification because you are a member of Desktop Packages, which is subscribed to chromium-browser in Ubuntu. https://bugs.launchpad.net/bugs/813946 Title: Huge No. of interrupts by SignalSender in Chromium-Browser Status in chromium-browser package in Ubuntu: Invalid Bug description: Huge number of interrupts are being generated by Chromium-Browser with the heading 'SignalSender' and 'chromium-browser' as reported by powertop. Steps: 1. Open powertop and keep it ready in background. 2. Open chromium browser and open a tab or two. 3. Monitor the interrupts in powertop and look for number of interrupts under 'chromium-browser' and 'SignalSender'. 4. Close and observe powertop again. The number of interrupts are largely reduced. 5. Open something with flash or video content. The number of interrupts again goes beyond the roof and CPU usage becomes very high. It seems to be a upstream bug and moving to version 14 or above seems to have resolved this regression. Needs to be tested and recent versions made available in the Ubuntu repository. I have not myself tested it, because of lack to tools and expertise, but the upstream bug reports in chromium-browser project seems to indicate so. What you expected to happen - No. of interrupts / CPU usage should be under reasonable limits. What happened instead - High CPU usage. $ lsb_release -rd Description: Ubuntu 10.10 Release: 10.10 $ apt-cache policy chromium-browser chromium-browser: Installed: 12.0.742.112~r90304-0ubuntu0.10.10.1 Candidate: 12.0.742.112~r90304-0ubuntu0.10.10.1 Version table: *** 12.0.742.112~r90304-0ubuntu0.10.10.1 0 500 http://archive.ubuntu.com/ubuntu/ maverick-updates/universe amd64 Packages 500 http://archive.ubuntu.com/ubuntu/ maverick-security/universe amd64 Packages 100 /var/lib/dpkg/status 6.0.472.63~r59945-0ubuntu2 0 500 http://archive.ubuntu.com/ubuntu/ maverick/universe amd64 Packages $ uname -a Linux ubnode6 2.6.35-30-server #54-Ubuntu SMP Tue Jun 7 20:13:05 UTC 2011 x86_64 GNU/Linux To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/chromium-browser/+bug/813946/+subscriptions -- Mailing list: https://launchpad.net/~desktop-packages Post to : desktop-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~desktop-packages More help : https://help.launchpad.net/ListHelp