Bug 29836 - bisected : MESA_FORMAT_S8_Z24' failed on some demos since e71a9042cb5e046072d2ea8fbd22a01de625bf8a Identify packed depth/stencil buffers using the Format field
Summary: bisected : MESA_FORMAT_S8_Z24' failed on some demos since e71a9042cb5e046072d...
Status: RESOLVED FIXED
Alias: None
Product: Mesa
Classification: Unclassified
Component: Mesa core (show other bugs)
Version: git
Hardware: x86 (IA32) Linux (All)
: medium normal
Assignee: mesa-dev
QA Contact:
URL:
Whiteboard:
Keywords:
: 29831 (view as bug list)
Depends on:
Blocks:
 
Reported: 2010-08-27 04:09 UTC by Andy Furniss
Modified: 2010-08-27 13:33 UTC (History)
3 users (show)

See Also:
i915 platform:
i915 features:

Attachments

Description Andy Furniss 2010-08-27 04:09:05 UTC 
Running r600, but swrast is also affected.


There are only 'skip'ped commit left to test.
The first bad commit could be any of:
e71a9042cb5e046072d2ea8fbd22a01de625bf8a
7b07674667e8e34c936c417ab6f1c2e33093205b
We cannot bisect more!

Mesa demos engine, arbocclude and fogcoord fail since the above commits.

bash-3.2$ LIBGL_ALWAYS_SOFTWARE=1 ./engine
engine: main/depthstencil.c:229: put_mono_row_z24: Assertion `dsrb->Format == MESA_FORMAT_S8_Z24' failed.

bash-3.2$ ./engine 
engine: main/depthstencil.c:150: get_values_z24: Assertion `dsrb->Format == MESA_FORMAT_S8_Z24' failed.
Comment 1 Nick Bowler 2010-08-27 06:30:11 UTC 
Can you try the patch posted here:

  http://lists.freedesktop.org/archives/mesa-dev/2010-August/002550.html

and see if it resolves your issue?
Comment 2 Nick Bowler 2010-08-27 07:08:39 UTC 
*** Bug 29831 has been marked as a duplicate of this bug. ***
Comment 3 Andy Furniss 2010-08-27 07:55:10 UTC 
(In reply to comment #1)
> Can you try the patch posted here:
> 
>   http://lists.freedesktop.org/archives/mesa-dev/2010-August/002550.html
> 
> and see if it resolves your issue?

Yes, but it regresses nexuiz (timedemo demos/demo1 with effects on normal) so that the floor/wall textures are mostly black.
Comment 4 Jos van Wolput 2010-08-27 08:30:23 UTC 
(In reply to comment #1)
> Can you try the patch posted here:
> 
>   http://lists.freedesktop.org/archives/mesa-dev/2010-August/002550.html
> 
> and see if it resolves your issue?

I tried your patch on demos engine, arbocclude and fogcoord, they no longer
fail. The patch seems to resolves the issue.

Thanks!
Comment 5 Andy Furniss 2010-08-27 11:43:13 UTC 
(In reply to comment #3)

> ... it regresses nexuiz (timedemo demos/demo1 with effects on normal) so
> that the floor/wall textures are mostly black.

Ignore that, I've managed to reproduce without the patch. It's an intermittent r600c issue that by chance only showed with the patch for the half a dozen runs I initially did.
Comment 6 Nick Bowler 2010-08-27 13:26:08 UTC 
(In reply to comment #5)
> (In reply to comment #3)
> 
> > ... it regresses nexuiz (timedemo demos/demo1 with effects on normal) so
> > that the floor/wall textures are mostly black.
> 
> Ignore that, I've managed to reproduce without the patch. It's an intermittent
> r600c issue that by chance only showed with the patch for the half a dozen runs
> I initially did.

OK great, thanks for testing.
Comment 7 Brian Paul 2010-08-27 13:33:09 UTC 
I've committed Nick's patch.
f57df7f2130dfe20a6f7e75cfc1f5d4e1717d098

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