[Bug 1589379] Re: System frozen after resume, on Ubuntu 16.04 kernel 4.4.0-22

[Christopher M. Penalver]

** Tags removed: bisect-done needs-reverse-bisect
** Tags added: reverse-bisect-done

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

** Description changed:

  Problem on HP probook 450, with Radeon R7 M260/M265.
  The last kernel on which resume works is 4.4.3-040403-generic.
  I have the problem on all kernels above, including v4.6-rc7-wily.
+ 
+ Reverse bisect revealed fix commit:
+ 24e8df6a6837d6cff182e84b838dc1d6971251fc drm/amd/powerplay: fix static 
checker warnings in smu7_hwmgr.c
  
  ProblemType: KernelOops
  DistroRelease: Ubuntu 16.04
  Package: linux-image-4.4.0-22-generic 4.4.0-22.40
  ProcVersionSignature: Ubuntu 4.4.0-22.40-generic 4.4.8
  Uname: Linux 4.4.0-22-generic x86_64
  Annotation: This occurred during a previous suspend, and prevented the system 
from resuming properly.
  ApportVersion: 2.20.1-0ubuntu2.1
  Architecture: amd64
  AudioDevicesInUse:
-  USERPID ACCESS COMMAND
-  /dev/snd/controlC0:  bastien2164 F pulseaudio
+  USERPID ACCESS COMMAND
+  /dev/snd/controlC0:  bastien2164 F pulseaudio
  Date: Mon Jun  6 07:50:40 2016
  DuplicateSignature: suspend/resume:HP HP ProBook 450 G3:N78 Ver. 01.06
  ExecutablePath: /usr/share/apport/apportcheckresume
  Failure: suspend/resume
  HibernationDevice: RESUME=UUID=1888eb9c-89d7-4478-b4bc-1ce90d714377
  InstallationDate: Installed on 2016-05-05 (31 days ago)
  InstallationMedia: Ubuntu 16.04 LTS "Xenial Xerus" - Release amd64 
(20160420.1)
  InterpreterPath: /usr/bin/python3.5
  MachineType: HP HP ProBook 450 G3
  ProcCmdline: /usr/bin/python3 /usr/share/apport/apportcheckresume
  ProcEnviron:
-  PATH=(custom, no user)
-  LANG=fr_FR.UTF-8
+  PATH=(custom, no user)
+  LANG=fr_FR.UTF-8
  ProcFB: 0 inteldrmfb
  ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-4.4.0-22-generic.efi.signed 
root=UUID=b919e8bc-92b0-4fcc-b9d3-0d8f38803a2b ro quiet splash vt.handoff=7
  PulseList: Error: command ['pacmd', 'list'] failed with exit code 1: No 
PulseAudio daemon running, or not running as session daemon.
  RelatedPackageVersions:
-  linux-restricted-modules-4.4.0-22-generic N/A
-  linux-backports-modules-4.4.0-22-generic  N/A
-  linux-firmware1.157
+  linux-restricted-modules-4.4.0-22-generic N/A
+  linux-backports-modules-4.4.0-22-generic  N/A
+  linux-firmware1.157
  SourcePackage: linux
  Title: [HP HP ProBook 450 G3] suspend/resume failure
  UpgradeStatus: No upgrade log present (probably fresh install)
  UserGroups:
-  
+ 
  dmi.bios.date: 12/18/2015
  dmi.bios.vendor: HP
  dmi.bios.version: N78 Ver. 01.06
  dmi.board.name: 8101
  dmi.board.vendor: HP
  dmi.board.version: KBC Version 16.20
  dmi.chassis.asset.tag: 5CD6080WDD
  dmi.chassis.type: 10
  dmi.chassis.vendor: HP
  dmi.modalias: 
dmi:bvnHP:bvrN78Ver.01.06:bd12/18/2015:svnHP:pnHPProBook450G3:pvr:rvnHP:rn8101:rvrKBCVersion16.20:cvnHP:ct10:cvr:
  dmi.product.name: HP ProBook 450 G3
  dmi.sys.vendor: HP

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Title:
  System frozen after resume, on Ubuntu 16.04 kernel 4.4.0-22

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[Bug 1589379] Re: System frozen after resume, on Ubuntu 16.04 kernel 4.4.0-22

[bastien]

This bug got solved in 4.9-rc2, from what I saw:

- up to commit 9faa6b0277fab4ab91db4d69bc47566fdfbae48b drm/amd/powerplay: fix 
static checker warnings in smu7_hwmgr.c
-> the bug is reproduced

- up to one commit above, eeb2fa0c97ba661f8b7fb210a1de10928b67a47b drm/amdgpu: 
potential NULL dereference in debugfs code
-> I have a black screen after resuming the system

- up to one commit above, 24e8df6a6837d6cff182e84b838dc1d6971251fc 
drm/amd/powerplay: fix static checker warnings in smu7_hwmgr.c
-> the bug is not reproduced, the resume is OK.

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

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  System frozen after resume, on Ubuntu 16.04 kernel 4.4.0-22

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[Bug 1589379] Re: System frozen after resume, on Ubuntu 16.04 kernel 4.4.0-22

[Christopher M. Penalver]

bastien, the next step is to fully reverse commit bisect from kernel
4.7-rc6 to 4.9-rc6 in order to identify the last bad commit, followed
immediately by the first good one. Once this good commit has been
identified, it may be reviewed for backporting. Could you please do this
following
https://wiki.ubuntu.com/Kernel/KernelBisection#How_do_I_reverse_bisect_the_upstream_kernel.3F
?

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

Also, the kernel release names are irrelevant for the purposes of
bisecting.

It is most helpful that after the fix commit (not kernel version) has
been identified, you then mark this report Status Confirmed.

Thank you for your help.

** Tags removed: kernel-bug-exists-upstream
** Tags added: kernel-fixed-upstream kernel-fixed-upstream-4.9-rc6 
needs-reverse-bisect

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

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  System frozen after resume, on Ubuntu 16.04 kernel 4.4.0-22

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[Bug 1589379] Re: System frozen after resume, on Ubuntu 16.04 kernel 4.4.0-22

[bastien]

Good news, this seems corrected on the last upstream kernel
4.9.0-040900rc6-generic.

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  System frozen after resume, on Ubuntu 16.04 kernel 4.4.0-22

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[Bug 1589379] Re: System frozen after resume, on Ubuntu 16.04 kernel 4.4.0-22

[Christopher M. Penalver]

manof, it will help immensely if you filed a new report with the Ubuntu 
repository kernel (not mainline/upstream) via a terminal:
ubuntu-bug linux

Please feel free to subscribe me to it.

For more on why this is helpful, please see
https://wiki.ubuntu.com/ReportingBugs.

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  System frozen after resume, on Ubuntu 16.04 kernel 4.4.0-22

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[Bug 1589379] Re: System frozen after resume, on Ubuntu 16.04 kernel 4.4.0-22

[manof]

I have the same problem with Linux kernel 4.4.8 on my fresh (bought 4
days ago) HP notebook 17-y011nc, with AMD/ATI Topaz XT [Radeon R7
M260/M265].

The interesting thing is, that originally I had the 4.4.0 kernel from
Ubuntu 16.04.1 LTS but it sometimes got frozen during suspending. Not
everytime, just sometimes. However, it was a way too often, so it was
pretty annoying.

Then I have found somewhere in forums, that this bug was resolved in
newer kernels, so I switched from 4.4.0 to 4.4.8. And it surely was
resolved, however after resume from suspend, it ALWAYS got frozen, so my
problem in fact got much worse with the kernel upgrade 4.4.0 => 4.4.8.

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  System frozen after resume, on Ubuntu 16.04 kernel 4.4.0-22

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[Bug 1589379] Re: System frozen after resume, on Ubuntu 16.04 kernel 4.4.0-22

[bastien]

Bug report created:
https://bugs.freedesktop.org/show_bug.cgi?id=96866

** Bug watch added: freedesktop.org Bugzilla #96866
   https://bugs.freedesktop.org/show_bug.cgi?id=96866

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[Bug 1589379] Re: System frozen after resume, on Ubuntu 16.04 kernel 4.4.0-22

[Christopher M. Penalver]

bastien, the issue you are reporting is an upstream one. Could you please 
report this problem via https://bugs.freedesktop.org/enter_bug.cgi?product=DRI :
Component: DRM/AMDgpu
Hardware: x86-64
OS: Linux (All)
CC: Alex Deucher

Please provide a direct URL to your bug report once you have made it so
that it may be tracked.

Thank you for your help.

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

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  System frozen after resume, on Ubuntu 16.04 kernel 4.4.0-22

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[Bug 1589379] Re: System frozen after resume, on Ubuntu 16.04 kernel 4.4.0-22

[Christopher M. Penalver]

** Tags removed: kernel-bug-exists-upstream-4.7-rc2
** Tags added: kernel-bug-exists-upstream-4.7-rc6

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[Bug 1589379] Re: System frozen after resume, on Ubuntu 16.04 kernel 4.4.0-22

[bastien]

I just tested 4.7-rc6, the bug is reproduced (system frozen on resume).

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[Bug 1589379] Re: System frozen after resume, on Ubuntu 16.04 kernel 4.4.0-22

[Christopher M. Penalver]

bastien, to keep this relevant to upstream, could you please test the
latest mainline kernel (4.7-rc6) and advise to the results?

** Tags removed: needs-bisect
** Tags added: bisect-done

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[Bug 1589379] Re: System frozen after resume, on Ubuntu 16.04 kernel 4.4.0-22

[bastien]

My mistake, I did not go until the end of the bissect, one step was remaining.
So I now have the following bad commit:


4474b85771139f2da8f8f4f443e6fad08081e99e is the first bad commit
commit 4474b85771139f2da8f8f4f443e6fad08081e99e
Author: Alex Deucher 
Date:   Tue Feb 2 16:24:20 2016 -0500

drm/amdgpu: remove exp hardware support from iceland

If I test one commit back ([b8b1ad305f8de05b241a57707d5b3de3692dbdfa]
drm/amdgpu: don't load MEC2 on topaz), I do not reproduce the problem.

I did another bisect to see from which commit I can boot into the OS and
really see the problem of freeze after resume. The result is:

 commit 53e609099daa023ad7771ec8351202f2a7bee1c1
Author: Alex Deucher 
Date:   Mon Mar 7 18:40:45 2016 -0500

drm/amdgpu: fix topaz/tonga gmc assignment in 4.4 stable

So to sum-up:
- before commit 4474b85771139f2da8f8f4f443e6fad08081e99e, resume was working OK 
(version 4.4.3)
- from commit 4474b85771139f2da8f8f4f443e6fad08081e99e (drm/amdgpu: remove exp 
hardware support from iceland), I cannot boot on the OS (version 4.4.4)
- from commit 53e609099daa023ad7771ec8351202f2a7bee1c1 (drm/amdgpu: fix 
topaz/tonga gmc assignment in 4.4 stable), I can boot into the OS and see the 
problem of system frozen on resume (this bug report)(version 4.4.5 and above).

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[Bug 1589379] Re: System frozen after resume, on Ubuntu 16.04 kernel 4.4.0-22

[Christopher M. Penalver]

bastien, to confirm, if you test one commit back (not bisection point) from the 
below, the issue is not reproducible:
[b8b1ad305f8de05b241a57707d5b3de3692dbdfa] drm/amdgpu: don't load MEC2 on topaz

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

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  System frozen after resume, on Ubuntu 16.04 kernel 4.4.0-22

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[Bug 1589379] Re: System frozen after resume, on Ubuntu 16.04 kernel 4.4.0-22

[bastien]

I tried the following kernels:
- 4.4.3: no problem, resume after suspend works
- 4.4.4: impossible to boot on the OS
- 4.4.5: bug of this report (system frozen after reboot) is reproduced

I did a commit bissect between 4.4.3 and 4.4.5, and I observed either:
- no problem, resume after suspend works (git bisect good)
- or impossible to boot on the OS (git bisect bad)

At the end I got the following commit:
[b8b1ad305f8de05b241a57707d5b3de3692dbdfa] drm/amdgpu: don't load MEC2 on topaz

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

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  System frozen after resume, on Ubuntu 16.04 kernel 4.4.0-22

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[Bug 1589379] Re: System frozen after resume, on Ubuntu 16.04 kernel 4.4.0-22

[Apport retracing service]

** Tags removed: need-duplicate-check

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  System frozen after resume, on Ubuntu 16.04 kernel 4.4.0-22

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[Bug 1589379] Re: System frozen after resume, on Ubuntu 16.04 kernel 4.4.0-22

[Christopher M. Penalver]

bastien, the next step is to fully commit bisect from kernel 4.4.3 to
4.4.8 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.

Also, the kernel release names are irrelevant for the purposes of
bisecting.

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

Thank you for your understanding.

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

** Tags removed: bios-outdated-1.11
** Tags added: latest-bios-1.11

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

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

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  System frozen after resume, on Ubuntu 16.04 kernel 4.4.0-22

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[Bug 1589379] Re: System frozen after resume, on Ubuntu 16.04 kernel 4.4.0-22

[bastien]

Thank you for bringing this to my attention.
I updated the BIOS to 1.11.
I still reproduce the problem: system completely frozen after resume.

1) The output of the command:
N78 Ver. 01.11
05/09/2016

2) No improvement with this BIOS.
3) Setting the bug to confirmed.

Thanks.

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

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[Bug 1589379] Re: System frozen after resume, on Ubuntu 16.04 kernel 4.4.0-22

[Christopher M. Penalver]

bastien, as per the release notes from
http://h20564.www2.hp.com/hpsc/swd/public/readIndex?sp4ts.oid=7834518=8=4192
an update to your computer's buggy, insecure, and outdated BIOS is
available (1.11). When you update to this following
https://help.ubuntu.com/community/BIOSUpdate does this improve the
situation?

For more on BIOS updates and linux, please see
https://help.ubuntu.com/community/ReportingBugs#Bug_reporting_etiquette
.

Please note your current BIOS is already in the Bug Description, so
posting this on the old BIOS would not be helpful.

Also, you don't have to create a new bug report.

Once the BIOS is updated, if the problem is still reproducible:
1) Please provide the output of the following terminal command (not perform an 
apport-collect):
sudo dmidecode -s bios-version && sudo dmidecode -s bios-release-date
2) Please make a comment specifically advising on if there was an improvement 
or not.
3) Please mark this report Status Confirmed.

If it's not reproducible, please mark this as Invalid.

Thank you for your understanding.

** Tags added: needs-bisect

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  System frozen after resume, on Ubuntu 16.04 kernel 4.4.0-22

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[Bug 1589379] Re: System frozen after resume, on Ubuntu 16.04 kernel 4.4.0-22

[bastien]

I just tried on the latest upstream kernel, 4.7-rc2, and the bug is
reproduced.

** Tags added: kernel-bug-exists-upstream kernel-bug-exists-
upstream-4.7-rc2

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[Bug 1589379] Re: System frozen after resume, on Ubuntu 16.04 kernel 4.4.0-22

[Christopher M. Penalver]

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

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.

Also, you don't need to apport-collect further unless specifically
requested to do so.

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

Thank you for your understanding.

** Tags added: bios-outdated-1.11

** Attachment removed: "version.log"
   
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1589379/+attachment/4677839/+files/version.log

** Tags added: regression-release

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

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

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