kernel-packages team mailing list archive

["Christopher M. Penalver" <christopher.m.penalver@xxxxxxxxx>]

Evgeny Gridasov, thank you for taking the time to report this bug and helping to make Ubuntu better. Please execute the following command, as it will automatically gather debugging information, in a terminal:
apport-collect 1261744
When reporting bugs in the future please use apport by using 'ubuntu-bug' and the name of the package affected. You can learn more about this functionality at https://wiki.ubuntu.com/ReportingBugs.

** Package changed: linux-lts-saucy (Ubuntu) => linux (Ubuntu)

** Changed in: linux (Ubuntu)
   Importance: Undecided => Low

** Changed in: linux (Ubuntu)
       Status: New => Incomplete

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https://bugs.launchpad.net/bugs/1261744

Title:
  Ubuntu 13.10 x64 kernel 3.11.0-14-generic crash

Status in “linux” package in Ubuntu:
  Incomplete

Bug description:
  On a Dell Poweredge 720, Kubuntu 13.10 x64, LInux Kernel 3.11.0-14-generic, when setting /etc/sysctl.conf:
  kernel.sched_autogroup_enabled=0
  Kernel fails to boot. This error is 100% reproducible and when I comment out that line in sysctl.conf everything works fine.
  The machine is 2x Xeon E2670 with 64GB of RAM, I've attached lspci output and also dmesg output during a normal boot.

  It starts failing when it detects  hard drives, right after it
  detected ixgbe network driver and when systemd starts to launch
  programs. If I boot it in safe mode with that option set to 0 and then
  choose resume in the menu, everything works fine. Apparently when
  systemd starts something that conflicts with the hard drive detection
  when autogroup_enabled=0.

  I've attached screen shots from the KVM.
  Please let me know if you need any other information.

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