[Bug 70390] New: G84: Repeated system crashes under graphics load, E[PFIFO] DMA_PUSHER and lots of E[PGRAPH] - bugzilla-daemon-CC+yJ3UmIYqDUpFQwHEjaQ

From: bugzilla-daemon-CC+yJ3UmIYqDUpFQwHEjaQ@public.gmane.org
To: nouveau-PD4FTy7X32lNgt0PjOBp9y5qC8QIuHrW@public.gmane.org
Subject: [Bug 70390] New: G84: Repeated system crashes under graphics load, E[PFIFO] DMA_PUSHER and lots of E[PGRAPH]
Date: Fri, 11 Oct 2013 20:33:33 +0000	[thread overview]
Message-ID: <bug-70390-8800@http.bugs.freedesktop.org/> (raw)

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https://bugs.freedesktop.org/show_bug.cgi?id=70390

          Priority: medium
            Bug ID: 70390
          Assignee: nouveau-PD4FTy7X32lNgt0PjOBp9y5qC8QIuHrW@public.gmane.org
           Summary: G84: Repeated system crashes under graphics load,
                    E[PFIFO] DMA_PUSHER and lots of E[PGRAPH]
        QA Contact: xorg-team-go0+a7rfsptAfugRpC6u6w@public.gmane.org
          Severity: normal
    Classification: Unclassified
                OS: All
          Reporter: Martin.vGagern-hi6Y0CQ0nG0@public.gmane.org
          Hardware: Other
            Status: NEW
           Version: unspecified
         Component: Driver/nouveau
           Product: xorg

Created attachment 87485
  --> https://bugs.freedesktop.org/attachment.cgi?id=87485&action=edit
nouveau error lines in kernel log for three incidents

This is taking my bug usptream from the distro level bug I first filed at
https://bugs.gentoo.org/show_bug.cgi?id=487656

I've encountered several system crashes in relation to nouveau and graphics
work lately. Most notably three crashes in the past few days, with kernel
version 3.11.4-gentoo. lspci reports the graphics card as
VGA compatible controller: NVIDIA Corporation G84 [GeForce 8400 GS] (rev a1)

I'm attaching an abridged version of the log files first, for a quick glance.
It is the output of “grep -h -C1 -E '\] nouveau [^ 0]|Linux version'” applied
to the currently available kernel logs. I can see no obious pattern there. I've
read that you prefer untruncated dmesg output, but since this issue causes my
system to reboot, calling dmesg is not an option, and since I'm reporting
several incidents, this might be a quick starting point.

The crashes themselves aren't reported as Oops, or maybe they are but the file
system is already unavailable by that time, so I don't notice. Unfortunately I
don't have a serial terminal attached for logging at all times.

I'll attach the unabridged logs shortly, but I can't even know whether these
successfully flushed all their data. I'll give a few details on each of these
incidents with the corresponding unabridged log.

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