Nouveau - Mar 2017 - [Bug 100435] New: Nouveau 1.0.14 crashes randomly

https://bugs.freedesktop.org/show_bug.cgi?id=100435

            Bug ID: 100435
           Summary: Nouveau 1.0.14 crashes randomly
           Product: xorg
           Version: unspecified
          Hardware: x86-64 (AMD64)
                OS: Linux (All)
            Status: NEW
          Severity: major
          Priority: medium
         Component: Driver/nouveau
          Assignee: nouveau at lists.freedesktop.org
          Reporter: skaistis at perlogic.net
        QA Contact: xorg-team at lists.x.org

Created attachment 130509
  --> https://bugs.freedesktop.org/attachment.cgi?id=130509&action=edit
dmesg output

After upgrading to nouveau 1.0.14, I've been experiencing random crashes.
It's
happened a couple of times switching desktops in the Gnome shell, but other
times appear to be pretty random. At that point the system is unresponsive and
has to be power-cycled. Downgrading to 1.0.13 stabilizes things.

Attaching dmesg, lspci, and some of the trace information that I was able to
get out of the logs.

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--- Comment #1 from Jeff Skaistis <skaistis at perlogic.net> ---
Created attachment 130510
  --> https://bugs.freedesktop.org/attachment.cgi?id=130510&action=edit
lspci output

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--- Comment #2 from Jeff Skaistis <skaistis at perlogic.net> ---
Created attachment 130511
  --> https://bugs.freedesktop.org/attachment.cgi?id=130511&action=edit
crash trace logs

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

           What    |Removed                     |Added
----------------------------------------------------------------------------
            Summary|Nouveau 1.0.14 crashes      |[GM107] Kernel 4.10(.6)
                   |randomly                    |nouveau_fence_sync -> ...
                   |                            |dma_fence_default_wait,
                   |                            |null spinlock error.

--- Comment #3 from Ilia Mirkin <imirkin at alum.mit.edu> ---
1.0.13 didn't have any support for your GPU. GMxxx support is new in 1.0.14.

Previously you were using modesetting either with or without glamor. Either
way, the issue is not in xf86-video-nouveau but rather in the kernel, perhaps
something that xf86-video-nouveau does makes the issue more likely to hit than
the GL lib that glamor operates.

There have actually been some separate reports of some kind of fence lifetime
issue, which I'm guessing you're hitting here.

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--- Comment #4 from Jeff Skaistis <skaistis at perlogic.net> ---
Thanks for the clarification. I thought it was something along those lines, but
don't know enough to pinpoint the root cause.

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--- Comment #5 from Ben Skeggs <skeggsb at gmail.com> ---
https://bugs.freedesktop.org/show_bug.cgi?id=100431 could be relevant here.

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Martin Peres <martin.peres at free.fr> changed:

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

--- Comment #6 from Martin Peres <martin.peres at free.fr> ---
-- 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/337.

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