Nouveau - Apr 2012 - [Bug 49086] New: nouveau — Gallium 0 . 4 on NVA5 — 2 .1 Mesa 8.0.2 crashes Firefox Nightly

https://bugs.freedesktop.org/show_bug.cgi?id=49086

             Bug #: 49086
           Summary: nouveau ? Gallium 0.4 on NVA5 ? 2.1 Mesa 8.0.2 crashes
                    Firefox Nightly
    Classification: Unclassified
           Product: Mesa
           Version: 8.0
          Platform: x86-64 (AMD64)
        OS/Version: Linux (All)
            Status: NEW
          Severity: normal
          Priority: medium
         Component: Drivers/DRI/nouveau
        AssignedTo: nouveau at lists.freedesktop.org
        ReportedBy: alex_mayorga at yahoo.com


https://cvs.khronos.org/svn/repos/registry/trunk/public/webgl/conformance-suites/1.0.1/conformance/glsl/functions/glsl-function-normalize.html
crashes Firefox Nightly on click with this configuration:

Mozilla/5.0 (X11; Ubuntu; Linux x86_64; rv:14.0) Gecko/20120423 Firefox/14.0a1
ID:20120423034053

Adapter Description nouveau ? Gallium 0.4 on NVA5
Vendor ID nouveau
Device ID Gallium 0.4 on NVA5
Driver Version 2.1 Mesa 8.0.2
WebGL Renderer nouveau ? Gallium 0.4 on NVA5 ? 2.1 Mesa 8.0.2
GPU Accelerated Windows 0
AzureBackend skia

I was directed to report this crash to this bug tracker at
http://blog.mozilla.org/bjacob/2012/04/21/webgl-1-0-1-conformance-testing-part-2/comment-page-1/#comment-3082

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https://bugs.freedesktop.org/show_bug.cgi?id=49086

--- Comment #1 from Josef V?t? <josef at vitu.org> 2012-06-09 02:27:17 PDT
---
Created attachment 62841
  --> https://bugs.freedesktop.org/attachment.cgi?id=62841
Backtrace

Backtrace for a similar configuration:

Mozilla/5.0 (X11; Linux x86_64; rv:16.0) Gecko/16.0 Firefox/16.0a1
ID:20120608081921

Adapter Description   nouveau -- Gallium 0.4 on NV96
Vendor ID   nouveau
Device ID   Gallium 0.4 on NV96
Driver Version   2.1 Mesa 8.0.2
WebGL Renderer   nouveau -- Gallium 0.4 on NV96 -- 2.1 Mesa 8.0.2
GPU Accelerated Windows   0
AzureBackend   skia

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https://bugs.freedesktop.org/show_bug.cgi?id=49086

Josef V?t? <josef at vitu.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
  Attachment #62841|application/octet-stream    |text/plain
          mime type|                            |

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Marcin Slusarz <marcin.slusarz at gmail.com> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |e0425955 at student.tuwien.ac.
                   |                            |at

--- Comment #2 from Marcin Slusarz <marcin.slusarz at gmail.com>
2012-06-09 05:15:07 PDT ---
This is:
assert(i->opcode == NV_OP_RCP && !src0->mod);
in nv50_pc_emit.c/emit_flop

CC'ing Christoph

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--- Comment #3 from Christoph Bumiller <e0425955 at student.tuwien.ac.at>
2012-06-09 06:36:24 PDT ---
Created attachment 62847
  --> https://bugs.freedesktop.org/attachment.cgi?id=62847
Patch for issue.

This should get rid of the assertion failure (obviously) and handle the case
correctly.

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Marcin Slusarz <marcin.slusarz at gmail.com> changed:

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

--- Comment #4 from Marcin Slusarz <marcin.slusarz at gmail.com> ---
http://cgit.freedesktop.org/mesa/mesa/commit/?id=ef51ce522bbb0a9bb3e6faa4890049b21f533aed

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