You have been subscribed to a public bug: # lsb_release -rd Description: Ubuntu 14.04.1 LTS Release: 14.04
# uname -a Linux napa 3.13.0-32-generic #57-Ubuntu SMP Tue Jul 15 03:51:08 UTC 2014 x86_64 x86_64 x86_64 GNU/Linux A kernel panic occurs while disabling the automatic task group creation within /etc/sysctl.conf using "kernel.sched_autogroup_enabled = 0". After adding the "noautogroup" kernel parameter to GRUB, the system will boot without issue. I have attached a screen shot of the stack trace as I was unable to capture the stack trace using netconsole, linux-crashdump, and /var/log/kern.log. Oddly enough, while trying one last approach (serial console) to capture the full trace within virtual box using a host pipe and setting console=ttyS0, the system booted without issue and disabled automatic task group creation. According to https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1055222, a fix for the issue has hit the Precise kernel and should be released in 3.2.0-36. ** Affects: linux (Ubuntu) Importance: Undecided Status: Confirmed ** Tags: bot-comment -- Kernel panic during system boot with sched_autogroup_enabled = 0 https://bugs.launchpad.net/bugs/1422016 You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. -- 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
