[Nouveau] [Bug 95282] New: system hang on video playback via vdpau

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=95282

            Bug ID: 95282
           Summary: system hang on video playback via vdpau
           Product: xorg
           Version: git
          Hardware: x86-64 (AMD64)
                OS: Linux (All)
            Status: NEW
          Severity: critical
          Priority: medium
         Component: Driver/nouveau
          Assignee: nouveau at lists.freedesktop.org
          Reporter: estellnb at elstel.org
        QA Contact: xorg-team at lists.x.org

Yesterday I have installed the proprietary firmware for nouveau as described
under wiki/VideoAcceleration/#firmware and now my machine hangs reliably on
start of video playback. If vdpau is not used (i.e. by specifying xine -V XShm
xy.mkv) then it does not hang. It first starts to hang, then there is a short
moment where it reacts on pressing num lock and where playback continues and
then it hangs forever.
  When switching to vt02 before playback starts you can see several messages;
it also reacts on Alt-PrnScr-l/m/p printing out that it would now print the
memory/registers/backtraces but then does not actually print them unless you
presss Alt-PrnScr-C. There appears to be nothing in the log (switched to vt02
is the last message in the xorg.0.log).

Current Operating System: Linux AmiloXi3650 4.6.0-rc6-ARCH-00006-g7d92f59 #8
SMP PREEMPT Tue May 3 14:17:04 CEST 2016 x86_64
Xorg Build Date: 05 April 2016  05:24:02PM

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