[Bug 71659] New: [NVD9] Hangs under load with ![ PFIFO][0000:01:00.0] unhandled status 0x00800000 - bugzilla-daemon-CC+yJ3UmIYqDUpFQwHEjaQ

From: bugzilla-daemon-CC+yJ3UmIYqDUpFQwHEjaQ@public.gmane.org
To: nouveau-PD4FTy7X32lNgt0PjOBp9y5qC8QIuHrW@public.gmane.org
Subject: [Bug 71659] New: [NVD9] Hangs under load with ![ PFIFO][0000:01:00.0] unhandled status 0x00800000
Date: Fri, 15 Nov 2013 20:14:42 +0000	[thread overview]
Message-ID: <bug-71659-8800@http.bugs.freedesktop.org/> (raw)

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https://bugs.freedesktop.org/show_bug.cgi?id=71659

          Priority: medium
            Bug ID: 71659
          Assignee: nouveau-PD4FTy7X32lNgt0PjOBp9y5qC8QIuHrW@public.gmane.org
           Summary: [NVD9] Hangs under load with ![   PFIFO][0000:01:00.0]
                    unhandled status 0x00800000
        QA Contact: xorg-team-go0+a7rfsptAfugRpC6u6w@public.gmane.org
          Severity: normal
    Classification: Unclassified
                OS: Linux (All)
          Reporter: R.Palmer-mHdZ94l+r7K1Qrn1Bg8BZw@public.gmane.org
          Hardware: x86-64 (AMD64)
            Status: NEW
           Version: git
         Component: Driver/nouveau
           Product: xorg

With the Nouveau driver selected, my NVS 4200M/Ubuntu 13.10 system frequently
hangs when under heavy graphics load (flightgear usually triggers this within a
few minutes) and/or on battery power.  This does not happen with the nvidia-319
binary driver.

The mouse pointer continues to move at first, but often freezes later; the
keyboard LEDs do not react.  Sounds already playing continue until finished,
but no new ones start (i.e. applications are frozen).  Alt+SysRq works.

The kernel log always has the error
nouveau ![   PFIFO][0000:01:00.0] unhandled status 0x00800000
usually preceded by several instances of the warning
nouveau W[   PFIFO][0000:01:00.0] INTR 0x01000000: 0x00000005
and followed by a wide range of other errors.

This happens with both the default (3.11.0) kernel (Ubuntu bug
https://bugs.launchpad.net/ubuntu/+source/xserver-xorg-video-nouveau/+bug/1243557
) and the latest git kernel, with the default userspace (libdrm-nouveau
2.4.46/xserver-xorg-video-nouveau 1.0.9/mesa 9.2.1); the attached logs are with
the latter (crashes at Nov 15 18:05 and 18:42 in the kernel log, the Xorg log
is from the second of these).

With the latest git userspace (xorg/proto/dri3proto, mesa/drm, xcb/libxcb,
xorg/lib/libxshmfence, mesa/mesa, xorg/proto/presentproto, xcb/proto,
nouveau/xf86-video-nouveau), the system hangs on boot (at a correctly displayed
graphical splash screen), with Alt+SysRq not working and nothing recognisable
as an error in the logs.  I suspect this is due to an incompatible combination
of Ubuntu and latest-git (the recommended mesa/drm, nouveau/xf86-video-nouveau,
mesa/mesa wouldn't compile on its own, as it needs dri3 which isn't in Ubuntu
yet).

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