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[post-factum <1352567@xxxxxxxxxxxxxxxxxx>]

Updated kernel bugzilla bug with detailed information:

https://bugzilla.kernel.org/show_bug.cgi?id=81701

Is that sufficient, or I should do something else? Should I CC
maintainers via bugzilla?

** Bug watch added: Linux Kernel Bug Tracker #81701
   http://bugzilla.kernel.org/show_bug.cgi?id=81701

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https://bugs.launchpad.net/bugs/1352567

Title:
  [Asus AM1M-A] OOPS in cpufreq driver

Status in “linux” package in Ubuntu:
  Triaged

Bug description:
  Occasionally I get my machine hung completely. Fortunately, I've got and saved 
  oops listing using netconsole before hang, and here it is [1].

  Here is little piece of oops from the link above:

  ===
  [15051.270461] BUG: unable to handle kernel paging request at 00000000ff5ae8e4
  [15051.271583] IP: [<ffffffff8109ae6e>] srcu_notifier_call_chain+0xe/0x20
  …
  [15051.956205] Call Trace:
  [15051.980641]  [<ffffffff81606085>] ? __cpufreq_notify_transition+0x95/0x1e0
  [15052.005640]  [<ffffffff816081ee>] cpufreq_notify_transition+0x3e/0x70
  [15052.030240]  [<ffffffff816083d8>] cpufreq_freq_transition_begin+0xe8/0x130
  [15052.054522]  [<ffffffff813b8940>] ? ucs2_strncmp+0x70/0x70
  [15052.078208]  [<ffffffff816089bf>] __target_index+0xbf/0x1a0
  [15052.101348]  [<ffffffff81608b9c>] __cpufreq_driver_target+0xfc/0x160
  [15052.124250]  [<ffffffff8160b0d4>] od_check_cpu+0xa4/0xb0
  [15052.146789]  [<ffffffff8160c9ec>] dbs_check_cpu+0x16c/0x1c0
  [15052.168935]  [<ffffffff8160b4dd>] od_dbs_timer+0x11d/0x180
  [15052.190607]  [<ffffffff8108e6ff>] process_one_work+0x17f/0x4c0
  [15052.211825]  [<ffffffff8108f46b>] worker_thread+0x11b/0x3f0
  [15052.232490]  [<ffffffff8108f350>] ? create_and_start_worker+0x80/0x80
  [15052.253127]  [<ffffffff81096479>] kthread+0xc9/0xe0
  [15052.273292]  [<ffffffff810963b0>] ? flush_kthread_worker+0xb0/0xb0
  [15052.293487]  [<ffffffff81793efc>] ret_from_fork+0x7c/0xb0
  [15052.313544]  [<ffffffff810963b0>] ? flush_kthread_worker+0xb0/0xb0
  …
  ===

  Also here is my lspci [2] and cpuinfo [3] as well.

  Vanilla 3.15.8 and 3.16.0 are affected as well as latest Ubuntu 3.13
  kernel.

  No visible reason to trigger the bug. After hang machine doesn't respond via 
  network, there's no disk IO, and also it doesn't respond to pressing power 
  button in order to perform soft off.

  And here is kernel bugzilla bugreport [4].

  [1] https://gist.github.com/085af9da81197faf6637
  [2] https://gist.github.com/318ebda5576b099590b8
  [3] https://gist.github.com/9c1307463c7ad6835b2d
  [4] https://bugzilla.kernel.org/show_bug.cgi?id=81701
  --- 
  ApportVersion: 2.14.1-0ubuntu3.3
  Architecture: amd64
  DistroRelease: Ubuntu 14.04
  InstallationDate: Installed on 2014-07-30 (5 days ago)
  InstallationMedia: Ubuntu-Server 14.04 LTS "Trusty Tahr" - Release amd64 (20140416.2)
  Package: linux (not installed)
  ProcEnviron:
   LANGUAGE=en_US:en
   TERM=xterm
   PATH=(custom, no user)
   LANG=en_US.UTF-8
   SHELL=/bin/bash
  Tags:  trusty
  Uname: Linux 3.16.0-031600-generic x86_64
  UnreportableReason: The running kernel is not an Ubuntu kernel
  UpgradeStatus: No upgrade log present (probably fresh install)
  UserGroups:
   
  _MarkForUpload: True
  --- 
  AlsaVersion: Advanced Linux Sound Architecture Driver Version k3.13.0-32-generic.
  AplayDevices: Error: [Errno 2] No such file or directory
  ApportVersion: 2.14.1-0ubuntu3.3
  Architecture: amd64
  ArecordDevices: Error: [Errno 2] No such file or directory
  AudioDevicesInUse: Error: command ['fuser', '-v', '/dev/snd/by-path', '/dev/snd/controlC1', '/dev/snd/hwC1D0', '/dev/snd/pcmC1D0c', '/dev/snd/pcmC1D0p', '/dev/snd/pcmC1D1p', '/dev/snd/pcmC1D2c', '/dev/snd/controlC0', '/dev/snd/hwC0D0', '/dev/snd/pcmC0D3p', '/dev/snd/seq', '/dev/snd/timer'] failed with exit code 1:
  CRDA:
   country UA:
   	(2400 - 2483 @ 40), (N/A, 20), NO-OUTDOOR
   	(5150 - 5350 @ 40), (N/A, 20), NO-OUTDOOR
   	(57240 - 65880 @ 2160), (N/A, 40), NO-OUTDOOR
  Card0.Amixer.info: Error: [Errno 2] No such file or directory
  Card0.Amixer.values: Error: [Errno 2] No such file or directory
  Card1.Amixer.info: Error: [Errno 2] No such file or directory
  Card1.Amixer.values: Error: [Errno 2] No such file or directory
  DistroRelease: Ubuntu 14.04
  InstallationDate: Installed on 2014-07-30 (5 days ago)
  InstallationMedia: Ubuntu-Server 14.04 LTS "Trusty Tahr" - Release amd64 (20140416.2)
  MachineType: ASUS All Series
  Package: linux (not installed)
  ProcEnviron:
   LANGUAGE=en_US:en
   TERM=xterm
   PATH=(custom, no user)
   LANG=en_US.UTF-8
   SHELL=/bin/bash
  ProcFB: 0 VESA VGA
  ProcKernelCmdLine: BOOT_IMAGE=/@/boot/vmlinuz-3.13.0-32-generic root=UUID=1f394420-1439-4dd6-9b70-0cd56bed41fd ro rootflags=subvol=@ consoleblank=0
  ProcVersionSignature: Ubuntu 3.13.0-32.57-generic 3.13.11.4
  RelatedPackageVersions:
   linux-restricted-modules-3.13.0-32-generic N/A
   linux-backports-modules-3.13.0-32-generic  N/A
   linux-firmware                             1.127.5
  RfKill: Error: [Errno 2] No such file or directory
  Tags:  trusty
  Uname: Linux 3.13.0-32-generic x86_64
  UpgradeStatus: No upgrade log present (probably fresh install)
  UserGroups:
   
  _MarkForUpload: True
  dmi.bios.date: 06/25/2014
  dmi.bios.vendor: American Megatrends Inc.
  dmi.bios.version: 0702
  dmi.board.asset.tag: To be filled by O.E.M.
  dmi.board.name: AM1M-A
  dmi.board.vendor: ASUSTeK COMPUTER INC.
  dmi.board.version: Rev X.0x
  dmi.chassis.asset.tag: Asset-1234567890
  dmi.chassis.type: 3
  dmi.chassis.vendor: Chassis Manufacture
  dmi.chassis.version: Chassis Version
  dmi.modalias: dmi:bvnAmericanMegatrendsInc.:bvr0702:bd06/25/2014:svnASUS:pnAllSeries:pvrSystemVersion:rvnASUSTeKCOMPUTERINC.:rnAM1M-A:rvrRevX.0x:cvnChassisManufacture:ct3:cvrChassisVersion:
  dmi.product.name: All Series
  dmi.product.version: System Version
  dmi.sys.vendor: ASUS

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