[Bug 77333] New: Xorg segfaults trying to use nouveau GK208 as offloadsink provider

[Bug 77333] New: Xorg segfaults trying to use nouveau GK208 as offloadsink provider

[bugzilla-daemon-CC+yJ3UmIYqDUpFQwHEjaQ]

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https://bugs.freedesktop.org/show_bug.cgi?id=77333

          Priority: medium
            Bug ID: 77333
          Assignee: nouveau-PD4FTy7X32lNgt0PjOBp9y5qC8QIuHrW@public.gmane.org
           Summary: Xorg segfaults trying to use nouveau GK208 as
                    offloadsink provider
        QA Contact: xorg-team-go0+a7rfsptAfugRpC6u6w@public.gmane.org
          Severity: normal
    Classification: Unclassified
                OS: All
          Reporter: nirbheek.chauhan-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org
          Hardware: Other
            Status: NEW
           Version: unspecified
         Component: Driver/nouveau
           Product: xorg

Steps to reproduce:

$ xrandr --listproviders
Providers: number : 2
Provider 0: id: 0x64 cap: 0xb, Source Output, Sink Output, Sink Offload crtcs:
3 outputs: 2 associated providers: 1 name:Intel
Provider 1: id: 0x3f cap: 0x5, Source Output, Source Offload crtcs: 0 outputs:
0 associated providers: 1 name:nouveau

$ xrandr --setprovideroffloadsink nouveau Intel

$ DRI_PRIME=1 glxinfo | grep "OpenGL vendor string"
[segfault]

I'm running kernel 3.14 on Fedora 20, with Xorg 1.14.4,
xf86-video-nouveau-1.0.9, Mesa 10.0.4. Logs are attached below.

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[Bug 77333] Xorg segfaults trying to use nouveau GK208 as offloadsink provider

[bugzilla-daemon-CC+yJ3UmIYqDUpFQwHEjaQ]

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https://bugs.freedesktop.org/show_bug.cgi?id=77333

--- Comment #1 from Nirbheek Chauhan <nirbheek.chauhan-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org> ---
Created attachment 97223
  --> https://bugs.freedesktop.org/attachment.cgi?id=97223&action=edit
dmesg | grep -E "nouveau|drm"

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[Bug 77333] Xorg segfaults trying to use nouveau GK208 as offloadsink provider

[bugzilla-daemon-CC+yJ3UmIYqDUpFQwHEjaQ]

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https://bugs.freedesktop.org/show_bug.cgi?id=77333

--- Comment #2 from Nirbheek Chauhan <nirbheek.chauhan-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org> ---
Created attachment 97224
  --> https://bugs.freedesktop.org/attachment.cgi?id=97224&action=edit
grep EE /var/log/Xorg.0.log.old

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[Bug 77333] Xorg segfaults trying to use nouveau GK208 as offloadsink provider

[bugzilla-daemon-CC+yJ3UmIYqDUpFQwHEjaQ]

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https://bugs.freedesktop.org/show_bug.cgi?id=77333

--- Comment #3 from Nirbheek Chauhan <nirbheek.chauhan-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org> ---
Created attachment 97225
  --> https://bugs.freedesktop.org/attachment.cgi?id=97225&action=edit
lspci -v

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[Bug 77333] Xorg segfaults trying to use nouveau GK208 as offloadsink provider

[bugzilla-daemon-CC+yJ3UmIYqDUpFQwHEjaQ]

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https://bugs.freedesktop.org/show_bug.cgi?id=77333

Nirbheek Chauhan <nirbheek.chauhan-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
  Attachment #97224|0                           |1
        is obsolete|                            |

--- Comment #4 from Nirbheek Chauhan <nirbheek.chauhan-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org> ---
Created attachment 97228
  --> https://bugs.freedesktop.org/attachment.cgi?id=97228&action=edit
DRI_PRIME=1 glxinfo

With xf86-video-nouveau, the segfault goes away, but DRI_PRIME doesn't work
either. Log attached.

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[Bug 77333] Unable to use nouveau GK208 as offloadsink provider

[bugzilla-daemon-CC+yJ3UmIYqDUpFQwHEjaQ]

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https://bugs.freedesktop.org/show_bug.cgi?id=77333

Nirbheek Chauhan <nirbheek.chauhan-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
            Summary|Xorg segfaults trying to    |Unable to use nouveau GK208
                   |use nouveau GK208 as        |as offloadsink provider
                   |offloadsink provider        |

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[Bug 77333] Unable to use nouveau GK208 as offloadsink provider

[bugzilla-daemon-CC+yJ3UmIYqDUpFQwHEjaQ]

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https://bugs.freedesktop.org/show_bug.cgi?id=77333

Nirbheek Chauhan <nirbheek.chauhan-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
  Attachment #97223|0                           |1
        is obsolete|                            |

--- Comment #5 from Nirbheek Chauhan <nirbheek.chauhan-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org> ---
Created attachment 97250
  --> https://bugs.freedesktop.org/attachment.cgi?id=97250&action=edit
dmesg | grep -E "nouveau|drm" -- drm-next + nouveau.config=NvGrUseFW=1

Situation does not change with a kernel compiled from commit c39b0695 on
drm-next, and by using external firmware.

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[Bug 77333] Unable to use nouveau GK208 as offloadsink provider

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https://bugs.freedesktop.org/show_bug.cgi?id=77333

--- Comment #6 from Ilia Mirkin <imirkin-FrUbXkNCsVf2fBVCVOL8/A@public.gmane.org> ---
I just noticed that you mention using xf86-video-nouveau 1.0.9. However GK208
is only supported starting 1.0.10. Please upgrade.

If the issue persists, please attach full logs.

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[Bug 77333] [NV108] Unable to use nouveau GK208 as offloadsink provider

[bugzilla-daemon-CC+yJ3UmIYqDUpFQwHEjaQ]

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https://bugs.freedesktop.org/show_bug.cgi?id=77333

Ilia Mirkin <imirkin-FrUbXkNCsVf2fBVCVOL8/A@public.gmane.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
            Summary|Unable to use nouveau GK208 |[NV108] Unable to use
                   |as offloadsink provider     |nouveau GK208 as
                   |                            |offloadsink provider

--- Comment #7 from Ilia Mirkin <imirkin-FrUbXkNCsVf2fBVCVOL8/A@public.gmane.org> ---
Oh, also, make sure to grab mesa 10.2-rc1 -- there are a bunch of fixes for
GK208 in there (although it still won't be perfect).

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[Bug 77333] [NV108] Unable to use nouveau GK208 as offloadsink provider

[bugzilla-daemon-CC+yJ3UmIYqDUpFQwHEjaQ]

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https://bugs.freedesktop.org/show_bug.cgi?id=77333

--- Comment #8 from Nirbheek Chauhan <nirbheek.chauhan-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org> ---
(In reply to comment #6)
> I just noticed that you mention using xf86-video-nouveau 1.0.9. However
> GK208 is only supported starting 1.0.10. Please upgrade.
> 
> If the issue persists, please attach full logs.

Sorry, I should've been clearer in comment 4. I forgot to mention that those
are the logs with xf86-video-nouveau 1.0.10.

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[Bug 77333] [NV108] Unable to use nouveau GK208 as offloadsink provider

[bugzilla-daemon-CC+yJ3UmIYqDUpFQwHEjaQ]

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https://bugs.freedesktop.org/show_bug.cgi?id=77333

--- Comment #9 from Ilia Mirkin <imirkin-FrUbXkNCsVf2fBVCVOL8/A@public.gmane.org> ---
(In reply to comment #8)
> (In reply to comment #6)
> > I just noticed that you mention using xf86-video-nouveau 1.0.9. However
> > GK208 is only supported starting 1.0.10. Please upgrade.
> > 
> > If the issue persists, please attach full logs.
> 
> Sorry, I should've been clearer in comment 4. I forgot to mention that those
> are the logs with xf86-video-nouveau 1.0.10.

Can you confirm that you were also using mesa 10.2.x? (10.2.2 and later should
work largely fine on GK208.)

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[Bug 77333] [NV108] Unable to use nouveau GK208 as offloadsink provider

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https://bugs.freedesktop.org/show_bug.cgi?id=77333

--- Comment #10 from Nirbheek Chauhan <nirbheek.chauhan-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org> ---
(In reply to comment #9)
> Can you confirm that you were also using mesa 10.2.x? (10.2.2 and later
> should work largely fine on GK208.)

I can't remember if I was, but I can try again and report back. Will try this
out today.

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[Bug 77333] [NV108] Unable to use nouveau GK208 as offloadsink provider

[bugzilla-daemon-CC+yJ3UmIYqDUpFQwHEjaQ]

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https://bugs.freedesktop.org/show_bug.cgi?id=77333

Nirbheek Chauhan <nirbheek.chauhan-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org> changed:

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

--- Comment #11 from Nirbheek Chauhan <nirbheek.chauhan-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org> ---
(In reply to comment #10)
> (In reply to comment #9)
> > Can you confirm that you were also using mesa 10.2.x? (10.2.2 and later
> > should work largely fine on GK208.)
> 
> I can't remember if I was, but I can try again and report back. Will try
> this out today.

"Today" happened, I was able to test and now it works!

$ DRI_PRIME=0 glxinfo | grep "OpenGL vendor string"
OpenGL vendor string: Intel Open Source Technology Center

$ DRI_PRIME=1 glxinfo | grep "OpenGL vendor string"
OpenGL vendor string: nouveau

$ DRI_PRIME=1 glxgears
Running synchronized to the vertical refresh.  The framerate should be
approximately the same as the monitor refresh rate.
6721 frames in 5.0 seconds = 1344.181 FPS

(that's such a lie, but at least it's working!)

This is with kernel 3.16.2-200.fc20, xorg 1.14.4, mesa-10.1.5,
xf86-video-nouveau-1.0.10. I wasn't able to find Fedora 20 packages for
mesa-10.2.x, but I'm guessing this works with 10.2 as well.

Closing as FIXED, thanks!

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[Bug 77333] [NV108] Unable to use nouveau GK208 as offloadsink provider

[bugzilla-daemon-CC+yJ3UmIYqDUpFQwHEjaQ]

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https://bugs.freedesktop.org/show_bug.cgi?id=77333

Nirbheek Chauhan <nirbheek.chauhan-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|RESOLVED                    |VERIFIED

--- Comment #12 from Nirbheek Chauhan <nirbheek.chauhan-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org> ---
(In reply to comment #11)
> This is with kernel 3.16.2-200.fc20, xorg 1.14.4, mesa-10.1.5,
> xf86-video-nouveau-1.0.10. I wasn't able to find Fedora 20 packages for
> mesa-10.2.x, but I'm guessing this works with 10.2 as well.
> 

I tested with mesa-10.2.5 using a Fedora COPR[1], and it works better! I'm not
getting rendering artifacts while running things other than glxgears.

1. http://copr.fedoraproject.org/coprs/jujuxiii/testing-fc20/

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