Public bug reported: My computer goes into a soft hang every few seconds. A key press or mouse movement wakes the system up but causes high cpu load >50%. No errors are displayed in dmesg or other logs. The last kernel which worked well for me was feisty 2.6.20-16. This seems to be due to cpu frequency scaling in newer kernels. With the latest hardy kernel, the system is able to boot completely. The problem still occurs in X and during shutdown. Booting with "nohz=off" seems to stop the problem from occurring. With gutsy kernels, the system hangs multiple times during boot or shutdown requiring a key press to continue.
Hardware: Samsung R20 laptop, Core Duo T2250 1.73GHz, 768MB, Ati X1250 IGP This problem has been reported in the forums before but I didn't find any bug report, e.g. http://ubuntuforums.org/showthread.php?t=647386&highlight=r20 http://ubuntuforums.org/showthread.php?t=586797&highlight=r20 http://ubuntuforums.org/showthread.php?t=522083&highlight=r20 ** Affects: linux (Ubuntu) Importance: Undecided Status: New -- Periodic hangs/high cpu usage https://bugs.launchpad.net/bugs/182063 You received this bug notification because you are a member of Ubuntu Bugs, which is the bug contact for Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
