freezes upon system boot with kernel 4.2.0-30

[Mattias H]

Was working fine with kernel 4.2.0-27, now freezes on boot with kernel 4.2.0-30

$ lsb_release -rd
Description: Ubuntu 15.10
Release: 15.10

$ apt-cache policy xorg
xorg:
  Installed: 1:7.7+7ubuntu4
  Candidate: 1:7.7+7ubuntu4
  Version table:
 *** 1:7.7+7ubuntu4 0
        500 http://se.archive.ubuntu.com/ubuntu/ wily/main amd64 Packages
        100 /var/lib/dpkg/status

ProblemType: Bug
DistroRelease: Ubuntu 15.10
Package: xorg 1:7.7+7ubuntu4
ProcVersionSignature: Ubuntu 4.2.0-27.32-generic 4.2.8-ckt1
Uname: Linux 4.2.0-27-generic x86_64
.tmp.unity.support.test.0:

ApportVersion: 2.19.1-0ubuntu5
Architecture: amd64
CompizPlugins: No value set for `/apps/compiz-1/general/screen0/options/active_plugins'
CompositorRunning: compiz
CompositorUnredirectDriverBlacklist: '(nouveau|Intel).*Mesa 8.0'
CompositorUnredirectFSW: true
CurrentDesktop: Unity
Date: Thu Feb 25 21:24:38 2016
DistUpgraded: Fresh install
DistroCodename: wily
DistroVariant: ubuntu
DkmsStatus:
 virtualbox, 5.0.14, 4.2.0-27-generic, x86_64: installed
 virtualbox, 5.0.14, 4.2.0-30-generic, x86_64: installed
 virtualbox-guest, 5.0.14, 4.2.0-27-generic, x86_64: installed
 virtualbox-guest, 5.0.14, 4.2.0-30-generic, x86_64: installed
GraphicsCard:
 Intel Corporation Haswell-ULT Integrated Graphics Controller [8086:0a16] (rev 0b) (prog-if 00 [VGA controller])
   Subsystem: Hewlett-Packard Company Device [103c:198f]
 Advanced Micro Devices, Inc. [AMD/ATI] Mars [Radeon HD 8730M] [1002:6601] (rev ff) (prog-if ff)
InstallationDate: Installed on 2015-02-16 (374 days ago)
InstallationMedia: Ubuntu 14.10 "Utopic Unicorn" - Release amd64 (20141022.1)
MachineType: Hewlett-Packard HP ZBook 14
ProcKernelCmdLine: BOOT_IMAGE=/vmlinuz-4.2.0-27-generic root=/dev/mapper/ubuntu--vg-root ro quiet splash
SourcePackage: xorg
UpgradeStatus: No upgrade log present (probably fresh install)
dmi.bios.date: 09/03/2014
dmi.bios.vendor: Hewlett-Packard
dmi.bios.version: L71 Ver. 01.21
dmi.board.name: 198F
dmi.board.vendor: Hewlett-Packard
dmi.board.version: KBC Version 15.55
dmi.chassis.asset.tag: 5CG4491SW6
dmi.chassis.type: 10
dmi.chassis.vendor: Hewlett-Packard
dmi.modalias: dmi:bvnHewlett-Packard:bvrL71Ver.01.21:bd09/03/2014:svnHewlett-Packard:pnHPZBook14:pvrA3009DD10303:rvnHewlett-Packard:rn198F:rvrKBCVersion15.55:cvnHewlett-Packard:ct10:cvr:
dmi.product.name: HP ZBook 14
dmi.product.version: A3009DD10303
dmi.sys.vendor: Hewlett-Packard
version.compiz: compiz 1:0.9.12.2+15.10.20151202-0ubuntu1
version.ia32-libs: ia32-libs N/A
version.libdrm2: libdrm2 2.4.64-1
version.libgl1-mesa-dri: libgl1-mesa-dri 11.0.2-1ubuntu4
version.libgl1-mesa-dri-experimental: libgl1-mesa-dri-experimental N/A
version.libgl1-mesa-glx: libgl1-mesa-glx 11.0.2-1ubuntu4
version.xserver-xorg-core: xserver-xorg-core 2:1.17.2-1ubuntu9.1
version.xserver-xorg-input-evdev: xserver-xorg-input-evdev 1:2.9.2-1ubuntu1
version.xserver-xorg-video-ati: xserver-xorg-video-ati 1:7.5.0+git20150819-0ubuntu1
version.xserver-xorg-video-intel: xserver-xorg-video-intel 2:2.99.917+git20150808-0ubuntu4
version.xserver-xorg-video-nouveau: xserver-xorg-video-nouveau 1:1.0.11-1ubuntu3
xserver.bootTime: Thu Feb 25 21:19:25 2016
xserver.configfile: default
xserver.errors: RADEON(G0): [XvMC] Failed to initialize extension.
xserver.logfile: /var/log/Xorg.0.log
xserver.outputs:
 product id 4669
 vendor AUO
xserver.version: 2:1.17.2-1ubuntu9.1

[Mattias H (mattias-stubin)]

Sure, np. The problem still exists. No change.

$ sudo dmidecode -s bios-version && sudo dmidecode -s bios-release-date
L71 Ver. 01.35
01/26/2016

[penalvch (penalvch)]

Mattias H, in order to allow additional upstream developers to examine the issue, at your earliest convenience, could you please test the latest upstream kernel available from http://kernel.ubuntu.com/~kernel-ppa/mainline/?C=N;O=D ? Please keep in mind the following:
1) The one to test is at the very top line at the top of the page (not the daily folder).
2) The release names are irrelevant.
3) The folder time stamps aren't indicative of when the kernel actually was released upstream.
4) Install instructions are available at https://wiki.ubuntu.com/Kernel/MainlineBuilds .

If testing on your main install would be inconvenient, one may:
1) Install Ubuntu to a different partition and then test this there.
2) Backup, or clone the primary install.

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, and Y are the first two numbers of the kernel version, and Z is the release candidate number if it exists.

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.

[Mattias H (mattias-stubin)]

Removed quiet and splash which revealed more info of whats going on here:
A start job is running for Detect the available GPUs and deal with any system changes

Maybe this is an issue for ubuntu-drivers-common?

[penalvch (penalvch)]

Mattias H, the next step is to fully commit bisect from kernel 4.2.0-27 to 4.2.0-30 in order to identify the last good kernel commit, followed immediately by the first bad one. This will allow for a more expedited analysis of the root cause of your issue. Could you please do this following https://wiki.ubuntu.com/Kernel/KernelBisection ?

Please note, finding adjacent kernel versions is not fully commit bisecting.

After the offending commit (not kernel version) has been identified, then please mark this report Status New.

Thank you for your understanding.

Helpful bug reporting tips:
https://wiki.ubuntu.com/ReportingBugs

[Mattias H (mattias-stubin)]

e3556bd1cb9e9d7fbcdd9b827995535aae5e09a3 is the first bad commit
commit e3556bd1cb9e9d7fbcdd9b827995535aae5e09a3
Author: Alex Deucher <email address hidden>
Date: Tue Nov 24 14:32:44 2015 -0500

    drm/radeon: call hpd_irq_event on resume

    BugLink: http://bugs.launchpad.net/bugs/1540532

    commit dbb17a21c131eca94eb31136eee9a7fe5aff00d9 upstream.

    Need to call this on resume if displays changes during
    suspend in order to properly be notified of changes.

    Signed-off-by: Alex Deucher <email address hidden>
    Signed-off-by: Kamal Mostafa <email address hidden>

[penalvch (penalvch)]

Mattias H, the issue you are reporting is an upstream one. Could you please report this problem following the instructions verbatim at https://wiki.ubuntu.com/Bugs/Upstream/kernel to the appropriate mailing list (TO Alex Deucher, Christian König, and Kamal Mostafa CC dri-devel)?

Please provide a direct URL to your post to the mailing list when it becomes available so that it may be tracked.

Thank you for your understanding.

[Mattias H (mattias-stubin)]

https://lists.freedesktop.org/archives/dri-devel/2016-March/102026.html

[Mattias H (mattias-stubin)]

Reverted upstream now:
http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=256faedcfd646161477d47a1a78c32a562d2e845