kernel-packages team mailing list archive

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

Shuhao, thank you for reporting this and helping make Ubuntu better.

To advised, it notes in comment #2 that it's a bot.

Despite this, could you please test the latest upstream kernel available
from the very top line at the top of the page from
http://kernel.ubuntu.com/~kernel-ppa/mainline/?C=N;O=D (the release
names are irrelevant for testing, and please do not test the daily
folder)? Install instructions are available at
https://wiki.ubuntu.com/Kernel/MainlineBuilds . This will allow
additional upstream developers to examine the issue.

If the latest kernel did not allow you to test to the issue (ex. you couldn't boot into the OS) please make a comment in your report about this, and continue to test the next most recent kernel version until you can test to the issue. Once you've tested the upstream kernel, please comment on which kernel version specifically you tested. If this issue is fixed in the mainline kernel, please add the following tags by clicking on the yellow circle with a black pencil icon, next to the word Tags, located at the bottom of the report description:
kernel-fixed-upstream
kernel-fixed-upstream-X.Y-rcZ

Where X, Y, and Z are numbers corresponding to the kernel version.

If the mainline kernel does not fix the issue, please add the following tags:
kernel-bug-exists-upstream
kernel-bug-exists-upstream-X.Y-rcZ

Please note, an error to install the kernel does not fit the criteria of
kernel-bug-exists-upstream.

Once testing of the latest upstream kernel is complete, please mark this
report's Status as Confirmed. Please let us know your results.

Thank you for your understanding.

** Tags added: latest-bios-1.46

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

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

-- 
You received this bug notification because you are a member of Kernel
Packages, which is subscribed to linux in Ubuntu.
https://bugs.launchpad.net/bugs/1509111

Title:
  Hard lockup but certain UI elements keeps changing

Status in linux package in Ubuntu:
  Incomplete

Bug description:
  I recently upgraded to Wily and I discovered that my system hard
  freezes about 2-3 times a day. This is the usual: unresponsive
  keyboard (including magic sysrq), unresponsive USB, no response to
  pings over the network, music/audio loops, as well as no evidence of
  errors in syslog, kern.log, Xorg.log.

  However, there's one very unusual aspect of this lockup: I have an on
  screen clock to the second and when the lockup occurs, the clock keeps
  ticking by the second! This means that code must be executing
  somewhere... This happened all but one occurance of hard freeze, where
  the clock also froze. In fact, I was on Facebook at one point and saw
  that I was disconnected. The facebook UI then followed up with the
  animation of "Reconnecting... 10... 9... 8...".

  I feel like posting here is a very long shot, but maybe someone else
  has something similar.

  Next time this happens I'll try to hook this machine to ethernet to
  see if there's any response and try to ssh into it. I could also write
  a program that writes to syslog every 5 seconds and see if those get
  written when the machine is "locked up". Not sure what else I can do
  at this point. I can also memtest or play kernel roulette with
  mainline, but the machine was previously stable on utopic (with BIOS
  instead of UEFI boot, tho).

  ProblemType: Bug
  DistroRelease: Ubuntu 15.10
  Package: linux-image-4.2.0-16-generic 4.2.0-16.19 [modified: boot/vmlinuz-4.2.0-16-generic]
  ProcVersionSignature: Ubuntu 4.2.0-16.19-generic 4.2.3
  Uname: Linux 4.2.0-16-generic x86_64
  ApportVersion: 2.19.1-0ubuntu3
  Architecture: amd64
  AudioDevicesInUse:
   USER        PID ACCESS COMMAND
   /dev/snd/controlC0:  shuhao     1884 F.... pulseaudio
  CurrentDesktop: XFCE
  Date: Thu Oct 22 17:49:21 2015
  HibernationDevice: RESUME=UUID=0b162d26-cb30-4f74-b80c-6cd03fd55a69
  InstallationDate: Installed on 2015-10-14 (8 days ago)
  InstallationMedia: Xubuntu 15.10 "Wily Werewolf" - Alpha amd64 (20151013)
  MachineType: LENOVO 4180J4C
  ProcEnviron:
   LANGUAGE=en_CA:en
   PATH=(custom, no user)
   XDG_RUNTIME_DIR=<set>
   LANG=en_CA.UTF-8
   SHELL=/bin/zsh
  ProcFB: 0 inteldrmfb
  ProcKernelCmdLine: BOOT_IMAGE=/vmlinuz-4.2.0-16-generic.efi.signed root=/dev/mapper/xubuntu--vg-root ro noprompt quiet splash vt.handoff=7
  RelatedPackageVersions:
   linux-restricted-modules-4.2.0-16-generic N/A
   linux-backports-modules-4.2.0-16-generic  N/A
   linux-firmware                            1.149
  SourcePackage: linux
  UdevLog: Error: [Errno 2] No such file or directory: '/var/log/udev'
  UpgradeStatus: No upgrade log present (probably fresh install)
  dmi.bios.date: 07/05/2013
  dmi.bios.vendor: LENOVO
  dmi.bios.version: 83ET76WW (1.46 )
  dmi.board.asset.tag: Not Available
  dmi.board.name: 4180J4C
  dmi.board.vendor: LENOVO
  dmi.board.version: Not Available
  dmi.chassis.asset.tag: No Asset Information
  dmi.chassis.type: 10
  dmi.chassis.vendor: LENOVO
  dmi.chassis.version: Not Available
  dmi.modalias: dmi:bvnLENOVO:bvr83ET76WW(1.46):bd07/05/2013:svnLENOVO:pn4180J4C:pvrThinkPadT420:rvnLENOVO:rn4180J4C:rvrNotAvailable:cvnLENOVO:ct10:cvrNotAvailable:
  dmi.product.name: 4180J4C
  dmi.product.version: ThinkPad T420
  dmi.sys.vendor: LENOVO

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