[Bug 96802] New: Upgrading mesa from 11.0.6 -> 11.2.2 causes graphics deadlock - bugzilla-daemon-CC+yJ3UmIYqDUpFQwHEjaQ

From: bugzilla-daemon-CC+yJ3UmIYqDUpFQwHEjaQ@public.gmane.org
To: nouveau-PD4FTy7X32lNgt0PjOBp9y5qC8QIuHrW@public.gmane.org
Subject: [Bug 96802] New: Upgrading mesa from 11.0.6 -> 11.2.2 causes graphics deadlock
Date: Mon, 04 Jul 2016 13:19:35 +0000	[thread overview]
Message-ID: <bug-96802-8800@http.bugs.freedesktop.org/> (raw)

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https://bugs.freedesktop.org/show_bug.cgi?id=96802

            Bug ID: 96802
           Summary: Upgrading mesa from 11.0.6 -> 11.2.2 causes graphics
                    deadlock
           Product: Mesa
           Version: 11.2
          Hardware: x86-64 (AMD64)
                OS: Linux (All)
            Status: NEW
          Severity: major
          Priority: medium
         Component: Drivers/DRI/nouveau
          Assignee: nouveau-PD4FTy7X32lNgt0PjOBp9y5qC8QIuHrW@public.gmane.org
          Reporter: ian.kumlien-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org
        QA Contact: nouveau-PD4FTy7X32lNgt0PjOBp9y5qC8QIuHrW@public.gmane.org

Created attachment 124894
  --> https://bugs.freedesktop.org/attachment.cgi?id=124894&action=edit
dmesg output

Hi, I have tested this several times with several different kernels, always
with the same result. It deadlocks wayland or X within seconds after opening a
terminal or chrome.

It starts out like this:
[  108.167312] nouveau 0000:01:00.0: fifo: SCHED_ERROR 0a [CTXSW_TIMEOUT]
[  108.167328] nouveau 0000:01:00.0: fifo: msppp engine fault on channel 12,
recovering...
[  118.871915] nouveau 0000:01:00.0: multiqueue0:src[7039]: failed to idle
channel 12 [multiqueue0:src[7039]]
[  133.873009] nouveau 0000:01:00.0: multiqueue0:src[7039]: failed to idle
channel 12 [multiqueue0:src[7039]]
[  134.242698] nouveau 0000:01:00.0: mspdec: intr 028c0000
[  134.242744] nouveau 0000:01:00.0: bus: MMIO read of 00000000 FAULT at 084048
[ IBUS ]
[  138.538241] nouveau 0000:01:00.0: fifo: SCHED_ERROR 0a [CTXSW_TIMEOUT]
[  138.538259] nouveau 0000:01:00.0: fifo: mspdec engine fault on channel 12,
recovering...
[  140.537498] nouveau 0000:01:00.0: fifo: runlist update timeout

And then it all breaks down and never recovers (the machine is reachable but
can't reboot properly afterwards)

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