[Bug 60020] New: Resuming Dell Precision M70 crashes

[Bug 60020] New: Resuming Dell Precision M70 crashes

[bugzilla-daemon-CC+yJ3UmIYqDUpFQwHEjaQ]

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https://bugs.freedesktop.org/show_bug.cgi?id=60020

          Priority: medium
            Bug ID: 60020
          Assignee: nouveau-PD4FTy7X32lNgt0PjOBp9y5qC8QIuHrW@public.gmane.org
           Summary: Resuming Dell Precision M70 crashes
        QA Contact: xorg-team-go0+a7rfsptAfugRpC6u6w@public.gmane.org
          Severity: normal
    Classification: Unclassified
                OS: Linux (All)
          Reporter: rcbixler-0BtJm3PWb0s@public.gmane.org
          Hardware: x86 (IA32)
            Status: NEW
           Version: git
         Component: Driver/nouveau
           Product: xorg

Created attachment 73830
  --> https://bugs.freedesktop.org/attachment.cgi?id=73830&action=edit
dmesg output - first bootup

I am running Debian wheezy and I have found that, with the nouveau driver
loaded, suspend/resume results in a hung system.  Originally, I was using the
proprietary NVidia driver and suspend/resume worked with it.  However, I
switched to the Nouveau driver after I found that the system was unstable with
the NVidia driver while watching videos.  I have made sure that all traces of
the NVidia driver have been removed before reproducing the bug.  Except for
this problem, the Nouveau driver works well -- no more crashes while watching
videos.

I have also confirmed that suspend/resume works after I unload the nouveau
driver.  I use the following commands:

echo 0 > /sys/class/vtconsole/vtcon1/bind
rmmod nouveau
pm-suspend

I have also done a test of suspend/resume with Nouveau loaded after activating
pm_trace (i.e. echo 1 > /sys/power/pm_trace).  I attach a couple of "dmesg"
outputs.  The most interesting lines from the second "dmesg" command from
rebooting after the crash are the following:

[    0.726626] PM: Hibernation image not present or could not be loaded.
[    0.726635] registered taskstats version 1
[    0.727033]   Magic number: 0:56:725
[    0.727036]   hash matches drivers/base/power/main.c:571
[    0.727078] pci 0000:01:00.0: hash matches
[    0.727139] rtc_cmos 00:06: setting system clock to 1996-05-07 08:42:38 UTC
(831458558)

Complete "dmesg" output attached.

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[Bug 60020] Resuming Dell Precision M70 crashes

[bugzilla-daemon-CC+yJ3UmIYqDUpFQwHEjaQ]

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https://bugs.freedesktop.org/show_bug.cgi?id=60020

--- Comment #1 from Roy Bixler <rcbixler-0BtJm3PWb0s@public.gmane.org> ---
Created attachment 73831
  --> https://bugs.freedesktop.org/attachment.cgi?id=73831&action=edit
"dmesg" output on rebooting after crash

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[Bug 60020] Resuming Dell Precision M70 crashes

[bugzilla-daemon-CC+yJ3UmIYqDUpFQwHEjaQ]

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https://bugs.freedesktop.org/show_bug.cgi?id=60020

--- Comment #2 from Roy Bixler <rcbixler-0BtJm3PWb0s@public.gmane.org> ---
I just wanted to add some clarification about reproducing the bug.  I find that
resume crashes if nouveau is loaded early as the framebuffer.  In that case,
the trick of removing the nouveau driver after stopping the X server and before
invoking pm-suspend has no effect (i.e. resume still results in a hung system).
 What does make a difference is if I blacklist the nouveau driver so that the
initial framebuffer console only uses standard VGA mode. When the X server
starts, the module is loaded.  In this case, stopping the X server, removing
the nouveau module and invoking pm-suspend results in a system that resumes
more or less correctly.  In fact, on the first resume, the video is even
restored.  On subsequent resumes, the video is not restored, but it is possible
to get it back by starting the X server.  Going back to the console using
Control-Alt-Fn also works.

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[Bug 60020] [NV42] Resuming Dell Precision M70 crashes

[bugzilla-daemon-CC+yJ3UmIYqDUpFQwHEjaQ]

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https://bugs.freedesktop.org/show_bug.cgi?id=60020

Ilia Mirkin <imirkin-FrUbXkNCsVf2fBVCVOL8/A@public.gmane.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
            Summary|Resuming Dell Precision M70 |[NV42] Resuming Dell
                   |crashes                     |Precision M70 crashes

--- Comment #3 from Ilia Mirkin <imirkin-FrUbXkNCsVf2fBVCVOL8/A@public.gmane.org> ---
Can you confirm whether this still happens on the latest kernel (3.11-rc7)?

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[Bug 60020] [NV42] Resuming Dell Precision M70 crashes

[bugzilla-daemon-CC+yJ3UmIYqDUpFQwHEjaQ]

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https://bugs.freedesktop.org/show_bug.cgi?id=60020

--- Comment #4 from Roy Bixler <rcbixler-0BtJm3PWb0s@public.gmane.org> ---
Yes, it still happens with 3.11-rc7.

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[Bug 60020] [NV42] Resuming Dell Precision M70 crashes

[bugzilla-daemon-CC+yJ3UmIYqDUpFQwHEjaQ]

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https://bugs.freedesktop.org/show_bug.cgi?id=60020

--- Comment #5 from Ilia Mirkin <imirkin-FrUbXkNCsVf2fBVCVOL8/A@public.gmane.org> ---
How hung is the machine? Can you ssh into it? If so, would be great to see the
logs on hang after resume. If not, can you try using netconsole/serial console?
Does booting with nouveau.config=NvForcePost=1 help?

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[Bug 60020] [NV42] Resuming Dell Precision M70 crashes

[bugzilla-daemon-CC+yJ3UmIYqDUpFQwHEjaQ]

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https://bugs.freedesktop.org/show_bug.cgi?id=60020

Martin Peres <martin.peres-GANU6spQydw@public.gmane.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
         Resolution|---                         |MOVED
             Status|NEW                         |RESOLVED

--- Comment #6 from Martin Peres <martin.peres-GANU6spQydw@public.gmane.org> ---
-- GitLab Migration Automatic Message --

This bug has been migrated to freedesktop.org's GitLab instance and has been
closed from further activity.

You can subscribe and participate further through the new bug through this link
to our GitLab instance:
https://gitlab.freedesktop.org/xorg/driver/xf86-video-nouveau/issues/34.

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