Nouveau - Apr 2016 - [Bug 95054] New: KDE 5 / Plasma crashes with nouveau "fifo: gr engine fault on channel 2, recovering" or "gr: TRAP ch 2"

https://bugs.freedesktop.org/show_bug.cgi?id=95054

            Bug ID: 95054
           Summary: KDE 5 / Plasma crashes with nouveau "fifo: gr engine
                    fault on channel 2, recovering" or "gr: TRAP ch
2"
           Product: xorg
           Version: 7.4 (2008.09)
          Hardware: x86-64 (AMD64)
                OS: Linux (All)
            Status: NEW
          Severity: normal
          Priority: medium
         Component: Driver/nouveau
          Assignee: nouveau at lists.freedesktop.org
          Reporter: matthias.h.nagel at gmail.com
        QA Contact: xorg-team at lists.x.org

I upgraded from KDE 4 to KDE 5/Plasma. Since the nouveau driver keeps crashing
and freezes everything. If I use the proprietary nvidia firmware (NvGrUseFw=1)
together with the nouveau driver everything works fine.

Normally, the crash heralds itself by some disrupted graphics (black boxes on
the desktop) some seconds before everything freezes totally. The crash is
usually triggered by some desktop effect if some item (menu/dialog/window)
fades in or out ("transparency" effect). The crash usually occurs
within the
first five minutes after the login. Sometimes even the login crashes (sddm
window manager) because the window manager uses the same fading effect and
triggers the bug, too.

My kernel version is 4.4.7.

Graphic card: "ASUS GeForce GTX 660 PCI 3.0 2GB DDR5"

uname: "Linux 4.4.7-gentoo #2 SMP Thu Apr 21 13:34:23 CEST 2016 x86_64
Intel(R)
Xeon(R) CPU E3-1230 v3 @ 3.30GHz GenuineIntel GNU/Linux"

I also still suffer from bug #93629 and 93630 that also vanish if the
proprietary firmware is used. But I decided to open a new bug, because the
dmesg messages are different.

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--- Comment #1 from Matthias Nagel <matthias.h.nagel at gmail.com> ---
Created attachment 123126
  --> https://bugs.freedesktop.org/attachment.cgi?id=123126&action=edit
X.org log

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--- Comment #2 from Matthias Nagel <matthias.h.nagel at gmail.com> ---
Created attachment 123127
  --> https://bugs.freedesktop.org/attachment.cgi?id=123127&action=edit
Dmesg output (version 1)

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--- Comment #3 from Matthias Nagel <matthias.h.nagel at gmail.com> ---
Created attachment 123128
  --> https://bugs.freedesktop.org/attachment.cgi?id=123128&action=edit
Dmesg output (version 2)

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--- Comment #4 from René Krell <renda.krell at gmail.com> ---
I'm affected by the same problem on a different hardware.

/var/log/messages:
---
2016-06-01T10:31:51.921964+02:00 rkrell kernel: [  249.913240] nouveau
0000:01:00.0: gr: TRAP ch 2 [003fbfa000 X[2532]]
2016-06-01T10:31:51.921965+02:00 rkrell kernel: [  249.913245] nouveau
0000:01:00.0: gr: GPC0/TPC0/TEX: 80000009
...
# the above repeated many times
...
2016-06-01T10:31:59.599064+02:00 rkrell kernel: [  257.590487] nouveau
0000:01:00.0: fifo: read fault at 0000240000 engine 00 [GR] client 01
[GPC0/T1_0] reason 02 [PTE] on channel 2 [003fbfa000 X[2532]]
2016-06-01T10:31:59.599074+02:00 rkrell kernel: [  257.590490] nouveau
0000:01:00.0: fifo: gr engine fault on channel 2, recovering...
2016-06-01T10:31:59.599075+02:00 rkrell kernel: [  257.590497] nouveau
0000:01:00.0: gr: TRAP ch 2 [003fbfa000 X[2532]]
2016-06-01T10:31:59.599076+02:00 rkrell kernel: [  257.590514] nouveau
0000:01:00.0: gr: GPC0/TPC0/TEX: 80000049
---

After that, the desktop locks up.
I can reproduce this each time, after a while of working with Chromium, for
example. KDE compositor set to OpenGL 2.0 or 3.1 / GLX.

- Hardware: HP ZBook 15 G2 (GK208), BIOS 01.34, Hybrid Graphics in BIOS set to
Auto
- OS: OpenSUSE Tumbleweed 20160530
- uname -a:
  Linux rkrell 4.5.4-1-default #1 SMP PREEMPT Wed May 11 15:23:21 UTC 2016
(db90c25) x86_64 x86_64 x86_64 GNU/Linux

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--- Comment #5 from René Krell <renda.krell at gmail.com> ---
Created attachment 124227
  --> https://bugs.freedesktop.org/attachment.cgi?id=124227&action=edit
/var/log/messages from OS start to crash on HP ZBook 15 G2

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--- Comment #6 from René Krell <renda.krell at gmail.com> ---
Created attachment 124228
  --> https://bugs.freedesktop.org/attachment.cgi?id=124228&action=edit
Output of dmesg on HP ZBook 15 G2

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--- Comment #7 from René Krell <renda.krell at gmail.com> ---
Just for the record:
- Setting Hybrid Graphic to Disabled doesn't work around this problem.
- The native nvidia driver 364.19 works fine for me.

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--- Comment #8 from René Krell <renda.krell at gmail.com> ---
The bug discussed here still happens with kernel 4.6.0 but very rarely, while
in 4.5.4 it happened reliably after a few minutes of using Chromium.

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--- Comment #9 from René Krell <renda.krell at gmail.com> ---
Just an update: The total desktop freeze happens in kernel 4.6.2, but very
frequently, after a few seconds/minutes of playing in Chromium or System
Settings / Compositor Settings.
OpenSUSE Tumbleweed 20160626, the same hardware: HP ZBook G2.

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Tomasz Paweł Gajc <tpgxyz at gmail.com> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
         Depends on|                            |98039

--- Comment #10 from Tomasz Paweł Gajc <tpgxyz at gmail.com> ---
Sounds like issue with multi-threading OpenGL support in nouveau, see #98039


Referenced Bugs:

https://bugs.freedesktop.org/show_bug.cgi?id=98039
[Bug 98039] KMail crash on starting (nouveau-related)
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Ilia Mirkin <imirkin at alum.mit.edu> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
         Depends on|98039                       |


Referenced Bugs:

https://bugs.freedesktop.org/show_bug.cgi?id=98039
[Bug 98039] KMail crash on starting (nouveau-related)
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Martin Peres <martin.peres at free.fr> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
         Resolution|---                         |MOVED
             Status|NEW                         |RESOLVED

--- Comment #11 from Martin Peres <martin.peres at free.fr> ---
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