[Nouveau] [Bug 83897] New: GK106 (GeForce GTX 660): Frequent GPU lockups

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=83897

          Priority: medium
            Bug ID: 83897
          Assignee: nouveau at lists.freedesktop.org
           Summary: GK106 (GeForce GTX 660): Frequent GPU lockups
        QA Contact: xorg-team at lists.x.org
          Severity: major
    Classification: Unclassified
                OS: Linux (All)
          Reporter: freedesk.apriori at spamgourmet.com
          Hardware: x86-64 (AMD64)
            Status: NEW
           Version: unspecified
         Component: Driver/nouveau
           Product: xorg

I’m getting frequent GPU lockups which always seem to occur when playing video
(either via mpv or via flash-plugin). Not sure how to tell whether this affects
the 2D driver or the mesa one. Please reassign as you see fit.

The bug manifests as one of the following:
1. X screen freezes, no response when switching VTs, only SysRq+REISUB works.
2. X screen freezes, VT switch works, system can be rebooted by userspace
tools.

The common denominator in the reported errors seems to be: «nouveau E[  
PFIFO][0000:01:00.0]» with either «write fault», «read fault», which is then
followed by «PGRAPH engine fault».

I’ll follow-up with a few relevant log files.

My current setup runs on:
* Linux 3.16.2
* Xorg 1.16.0

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