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[Yuri Ribeiro Sucupira <yuri_sucupira@xxxxxxxxxxx>]

Wow, that seems a lot of work. I've never did it before in my life, but
ok, let's see if I can do it.

I'll need some help here, though, 'coz I'm not 100% sure if the kernel
list I created is correct. Could you please confirm this to me?

If I understood the instructions correctly, according with
"ProcVersionSignature: Ubuntu 3.19.0-33.38~14.04.1-generic 3.19.8-ckt7"
and "http://people.canonical.com/~kernel/info/kernel-version-map.html";
the mainline kernel version for "3.19.0-33-generic" (which shipped with
my notebook) is kernel "3.19.8-ckt7", hence the botton of the kernel
list must be "v3.19.8-ckt7-vivid".

Also, because the bug was fixed in upstream kernel "v4.4-rc2+cod1-wily",
it has to be on the top of the list, thus I am assuming that the kernel
list for reverse commit bisect has to be this one:

v4.4-rc2+cod1-wily
v4.4-rc1-wily
v4.4-rc1+cod1-wily
v4.3-wily
v4.3-unstable
v4.3-rc7-unstable
v4.3-rc6-unstable
v4.3-rc5-unstable
v4.3-rc4-unstable
v4.3-rc3-unstable
v4.3-rc2-unstable
v4.3-rc1-unstable
v4.2.6-wily
v4.2.5-wily
v4.2.4-wily
v4.2.4-unstable
v4.2.3-unstable
v4.2.2-unstable
v4.2.1-unstable
v4.2-wily
v4.2-unstable
v4.2-rc8-unstable
v4.2-rc7-unstable
v4.2-rc6-unstable
v4.2-rc5-unstable
v4.2-rc4-unstable
v4.2-rc3-unstable
v4.2-rc2-unstable
v4.2-rc1-unstable
v4.1.13-wily
v4.1.12-wily
v4.1.11-wily
v4.1.11-unstable
v4.1.10-unstable
v4.1.9-unstable
v4.1.8-unstable
v4.1.7-unstable
v4.1.6-unstable
v4.1.5-unstable
v4.1.4-unstable
v4.1.3-unstable
v4.1.2-unstable
v4.1.1-unstable
v4.1-wily
v4.1-unstable
v4.1-rc8-unstable
v4.1-rc7-unstable
v4.1-rc6-unstable
v4.1-rc5-unstable
v4.1-rc4-unstable
v4.1-rc3-unstable
v4.1-rc2-vivid
v4.1-rc1-vivid
v4.0.9-wily
v4.0.8-wily
v4.0.7-wily
v4.0.6-wily
v4.0.5-wily
v4.0.4-wily
v4.0.3-wily
v4.0.2-wily
v4.0.1-wily
v4.0-vivid
v4.0-rc7-vivid
v4.0-rc6-vivid
v4.0-rc5-vivid
v4.0-rc4-vivid
v4.0-rc3-vivid
v4.0-rc2-vivid
v4.0-rc1-vivid
v3.19.8-vivid
v3.19.8-ckt10-vivid
v3.19.8-ckt9-vivid
v3.19.8-ckt8-vivid
v3.19.8-ckt7-vivid

Is my line of thought correct? Hence, is the above list correct?

As soon as I have a confirmation, I'll begin tracking down the commit
that fixed the bug.

-- 
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/1520040

Title:
  [drm:gen8_irq_handler [i915_bpo]] *ERROR* The master control interrupt
  lied (SDE)!

Status in linux package in Ubuntu:
  Incomplete

Bug description:
  Device: notebook Dell Inspiron 5548

  Operating system: 64-bit XUbuntu Linux 14.04 LTS

  Processor: Intel Core i7-5500U

  Kernel: 3.19.0-33-generic #38~14.04.1-Ubuntu SMP x86_64

  Video: dual chip. These are the two display controllers:
  - Advanced Micro Devices, Inc. [AMD/ATI] Topaz XT [Radeon R7 M260] display controller 33000000Hz (requires kernel module / device driver "fglrx"); and
  - Intel Corporation Broadwell-U Integrated Graphics VGA compatible controller 33000000Hz (requires kernel module / device driver "i915").

  Problem: my notebook's operating system is switching to runlevel 0
  (power off) randomly, subtly and thus unexpectedly. And if I 'cat
  /var/log/kern.log |grep -i i915' I get a lot of "[drm:gen8_irq_handler
  [i915_bpo]] *ERROR* The master control interrupt lied (SDE)!"
  messages. I'm under the impression that either the kernel or the
  kernel module "i915_bpo" is buggy.

  My notebook's problem can't be related to overheating, because it's a
  brand-new notebook (less than 1 month old) and I've already monitored
  its temperature parameters: nothing abnormal is happening. Also, I'm
  using a cooling laptop base/pad.

  Other kernels I've tested, with which the same issue happens:
  - 3.19.0-18-generic (kernel module: i915_bpo)
  - 3.19.0-23-generic (kernel module: i915_bpo)
  - 3.19.0-28-generic (kernel module: i915_bpo)
  - 4.2.0-18-generic (kernel module: i915)

  Temporary workaround: I downgraded to kernel "3.13.0-36-generic",
  which isn't buggy with its "i915_bdw.ko" (version 3.0) kernel object
  (module). Full path for this module:
  /lib/modules/3.13.0-36-generic/kernel/ubuntu/i915/i915_bdw.ko

  Notes:
  - "bdw" stands for "Broadwell"
  - "bpo", I believe, stands for "backport"

  ProblemType: Bug
  DistroRelease: Ubuntu 14.04
  Package: linux-image-3.19.0-33-generic 3.19.0-33.38~14.04.1
  ProcVersionSignature: Ubuntu 3.19.0-33.38~14.04.1-generic 3.19.8-ckt7
  Uname: Linux 3.19.0-33-generic x86_64
  NonfreeKernelModules: wl fglrx
  ApportVersion: 2.14.1-0ubuntu3.19
  Architecture: amd64
  CurrentDesktop: XFCE
  Date: Wed Nov 25 23:44:39 2015
  InstallationDate: Installed on 2015-11-03 (22 days ago)
  InstallationMedia: Xubuntu 14.04.3 LTS "Trusty Tahr" - Beta amd64 (20150805)
  SourcePackage: linux-lts-vivid
  UpgradeStatus: No upgrade log present (probably fresh install)
  --- 
  ApportVersion: 2.14.1-0ubuntu3.19
  Architecture: amd64
  AudioDevicesInUse:
   USER        PID ACCESS COMMAND
   /dev/snd/controlC0:  yuriyrs    2832 F.... pulseaudio
   /dev/snd/controlC1:  yuriyrs    2832 F.... pulseaudio
  CurrentDesktop: XFCE
  DistroRelease: Ubuntu 14.04
  HibernationDevice: RESUME=UUID=a08f36f9-0611-4894-9da9-8b1dcc960a86
  InstallationDate: Installed on 2015-11-03 (24 days ago)
  InstallationMedia: Xubuntu 14.04.3 LTS "Trusty Tahr" - Beta amd64 (20150805)
  MachineType: Dell Inc. Inspiron 5548
  NonfreeKernelModules: fglrx wl
  Package: linux (not installed)
  ProcFB: 0 inteldrmfb
  ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.19.0-33-generic.efi.signed root=UUID=4f05c2b3-c971-4bf8-bcb6-a76d60b68e45 ro quiet splash video.use_native_backlight=1 intremap=no_x2apic_optout vt.handoff=7
  ProcVersionSignature: Ubuntu 3.19.0-33.38~14.04.1-generic 3.19.8-ckt7
  RelatedPackageVersions:
   linux-restricted-modules-3.19.0-33-generic N/A
   linux-backports-modules-3.19.0-33-generic  N/A
   linux-firmware                             1.127.18
  Tags:  trusty
  Uname: Linux 3.19.0-33-generic x86_64
  UpgradeStatus: No upgrade log present (probably fresh install)
  UserGroups: adm audio cdrom dialout dip fax floppy fuse lpadmin netdev plugdev sambashare scanner sudo tape video
  _MarkForUpload: True
  dmi.bios.date: 10/12/2015
  dmi.bios.vendor: Dell Inc.
  dmi.bios.version: A06
  dmi.board.name: 0YDTG3
  dmi.board.vendor: Dell Inc.
  dmi.board.version: A02
  dmi.chassis.type: 8
  dmi.chassis.vendor: Dell Inc.
  dmi.chassis.version: A06
  dmi.modalias: dmi:bvnDellInc.:bvrA06:bd10/12/2015:svnDellInc.:pnInspiron5548:pvrA06:rvnDellInc.:rn0YDTG3:rvrA02:cvnDellInc.:ct8:cvrA06:
  dmi.product.name: Inspiron 5548
  dmi.product.version: A06
  dmi.sys.vendor: Dell Inc.

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