Nouveau - Dec 2012 - [Bug 58305] New: Kernel crashes if nVidia card is powered off and X restartted

https://bugs.freedesktop.org/show_bug.cgi?id=58305

          Priority: medium
            Bug ID: 58305
          Assignee: nouveau at lists.freedesktop.org
           Summary: Kernel crashes if nVidia card is powered off and X
                    restartted
        QA Contact: xorg-team at lists.x.org
          Severity: normal
    Classification: Unclassified
                OS: Linux (All)
          Reporter: buboleck at gmail.com
          Hardware: Other
            Status: NEW
           Version: unspecified
         Component: Driver/nouveau
           Product: xorg

Created attachment 71512
  --> https://bugs.freedesktop.org/attachment.cgi?id=71512&action=edit
Kernel message for the crash

In Optimus system if the Nvidia card is powered off and X is restarted kernel
crashes. 

Info:

Distribution: Gentoo x86_64, stable up to date.
Kernel: Gentoo 3.7 
System: Acer Aspire 5742G (RAM 8G ,CPU Intel Core i5 480M, nVidia GT540 with 1G
RAM, latest BIOS v1.30)

In the kernel messages when the nouveu driver is loaded it reports that the
nVidia card is with 512MB of ram.

I can provide full dmesg if needed.

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Marcin Slusarz <marcin.slusarz at gmail.com> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |daniel.blueman at gmail.com

--- Comment #1 from Marcin Slusarz <marcin.slusarz at gmail.com> ---
FYI
http://lists.freedesktop.org/archives/nouveau/2012-November/011459.html
http://lists.freedesktop.org/archives/nouveau/2012-November/011476.html

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--- Comment #2 from Dimitar Kosev <buboleck at gmail.com> ---
Thank you. Then I suppose there is already anoter bug or something. If this is
the case this one can be closed.

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--- Comment #3 from Marcin Slusarz <marcin.slusarz at gmail.com> ---
No, there's no other open bug report for this. It's better to keep this
one
open as long as it's not fixed upstream.

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--- Comment #4 from Dimitar Kosev <buboleck at gmail.com> ---
Ok, I can provide any additional information needed.

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Jean-Louis Dupond <jean-louis at dupond.be> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |jean-louis at dupond.be

--- Comment #5 from Jean-Louis Dupond <jean-louis at dupond.be> ---
I had the exact same crash today.
After disabling my vga card, and shutdown I got the following trace:
http://ubuntu.dupondje.be/20121225_114737.jpg

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Daniel J Blueman <daniel.blueman at gmail.com> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
           Hardware|Other                       |x86-64 (AMD64)

--- Comment #6 from Daniel J Blueman <daniel.blueman at gmail.com> ---
This is still present in 3.8-rc1.

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--- Comment #7 from Ilia Mirkin <imirkin at alum.mit.edu> ---
Can you confirm that this issue still exists in the latest kernel (3.11-rc7)? A
bunch of locking/ordering stuff has been redone since 3.8, I think.

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--- Comment #8 from Dimitar Kosev <buboleck at gmail.com> ---
(In reply to comment #7)
> Can you confirm that this issue still exists in the latest kernel
> (3.11-rc7)? A bunch of locking/ordering stuff has been redone since 3.8, I
> think.
I just tested with 3.11 and I can can confirm that suspend/resume works,
however still crashes on shut down/reboot.

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--- Comment #9 from Ilia Mirkin <imirkin at alum.mit.edu> ---
Can you supply a full kernel log that includes the backtrace from 3.11? You can
probably trigger the issue by unloading the nouveau module -- see how to do
this at http://nouveau.freedesktop.org/wiki/KernelModeSetting/ (you can't
just
rmmod it, you have to unbind the console first)

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--- Comment #10 from Dimitar Kosev <buboleck at gmail.com> ---
Ok, I had some time to try 3.12... it's even worse, kernel crashesh short
time
after loading nouveau module. Starting X completely locks the system.

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--- Comment #11 from Ilia Mirkin <imirkin at alum.mit.edu> ---
Is this still an issue in 3.13.x or later? The runpm stuff should be there and
working, with the card automatically powering off when not in use.

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--- Comment #12 from Dimitar Kosev <buboleck at gmail.com> ---
Hello,

I can't confirm, I don't use this laptop anymore

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--- Comment #13 from Jean-Louis Dupond <jean-louis at dupond.be> ---
Didn't had the crash anymore the last months.
So seems to be fine now indeed.

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Ilia Mirkin <imirkin at alum.mit.edu> changed:

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

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