What is the best way to test if we are impacted by this bug? We run the following image on c1.xlarge's and see nodes die about every 1-2 days now under a continuous >50% CPU load. The nodes will fail the EC2 instance status check and all monitoring daemons on the node will stop reporting.
However, there is no backtrace or any information in the logs after a reboot to diagnose what failed. Is there a change required to dump the stacktraces seen above in order to tell if we are impacted by this same bug? # lsb_release -a No LSB modules are available. Distributor ID: Ubuntu Description: Ubuntu 11.10 Release: 11.10 Codename: oneiric # uname -a Linux ip-10-191-55-199 3.0.0-30-virtual #47-Ubuntu SMP Wed Jan 2 23:54:26 UTC 2013 x86_64 x86_64 x86_64 GNU/Linux IMAGE ami-57bd2a3e 099720109477/ubuntu/images/ubuntu- oneiric-11.10-amd64-server-20130203 099720109477 available public x86_64 machine aki-88aa75e1 instance-store paravirtual xen -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1011792 Title: Kernel lockup running 3.0.0 and 3.2.0 on multiple EC2 instance types To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1011792/+subscriptions -- ubuntu-bugs mailing list [email protected] https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
