[Mesa-dev] [Bug 93257] [SKL, bisected] ASTC dEQP tests segfault

bugzilla-daemon at freedesktop.org bugzilla-daemon at freedesktop.org
Fri Dec 4 16:14:50 PST 2015


            Bug ID: 93257
           Summary: [SKL, bisected] ASTC dEQP tests segfault
           Product: Mesa
           Version: git
          Hardware: Other
                OS: All
            Status: ASSIGNED
          Severity: normal
          Priority: medium
         Component: Mesa core
          Assignee: ben at bwidawsk.net
          Reporter: nanleychery at gmail.com
        QA Contact: mesa-dev at lists.freedesktop.org
                CC: chad.versace at intel.com, neil at linux.intel.com

Test: dEQP-GLES3.functional.texture.compressed.astc.void_extent_ldr.5x4 
Expected result: Test fails due to comparison errors.
Actual result:   Test segfaults.

The segfaults seem to occur for all ASTC tests with block size dimensions >=
More tests may be affected. This issue does not occur on Jenkins, but it does
locally on the given configuration:

dEQP: https://github.com/chadversary/deqp chadv
      CMAKE_BUILD_TYPE Debug                                         
      DEQP_TARGET      drm
commit 0288f92e7b0ce5f0d821f2d0ddef522a23776ecb
Author: Ben Widawsky <benjamin.widawsky at intel.com>
Date:   Tue Oct 13 20:50:27 2015 -0700

    i965/gen9: Support fast clears for 32b float

    SKL supports the ability to do fast clears and resolves of 32b RGBA as both
    integer and floats. This patch only enables float color clears because we
    haven't yet enabled integer color clears, (HW support for that was added in

    v2: Remove LUMINANCE16F and INTENSITY16F special cases since they are now
    handled by Neil's patch to disable MSAA fast clears.

    Signed-off-by: Ben Widawsky <ben at bwidawsk.net>
    Reviewed-by: Neil Roberts <neil at linux.intel.com>
    Reviewed-by: Chad Versace <chad.versace at intel.com>

Core dump info:
        Signal: 11 (SEGV)
  Command Line: ./modules/gles3/deqp-gles3
--deqp-surface-type=fbo --deqp-log-images=disable --deqp-surface-width=64
   Stack trace:
   #0  0x00007fa3556059b9 dri2InvalidateDrawable (i965_dri.so)
   #1  0x00007fa3556222dc intel_viewport (i965_dri.so)
   #2  0x00007fa355372ace _mesa_set_viewport (i965_dri.so)
   #3  0x00007fa35547e7a8 _mesa_meta_end (i965_dri.so)
   #4  0x00007fa35562fa40 brw_meta_resolve_color (i965_dri.so)
   #5  0x00007fa355680bdd intel_miptree_resolve_color (i965_dri.so)
   #6  0x00007fa355685ee2 intel_readpixels_tiled_memcpy (i965_dri.so)
   #7  0x00007fa35568637b intelReadPixels (i965_dri.so)
   #8  0x00007fa355317716 _mesa_ReadnPixelsARB (i965_dri.so)
   #9  0x00007fa355317767 _mesa_ReadPixels (i965_dri.so)
   #10 0x00007fa358127640 shared_dispatch_stub_256 (libglapi.so.0)
   #11 0x00000000010343eb
   #12 0x0000000000c6772f
   #13 0x0000000000c6839f _ZN4deqp5gles310Functional15ASTCBlockCase2D7iterateEv
   #14 0x0000000000feab6b
_ZN3tcu15TestCaseWrapper15iterateTestCaseEPNS_8TestCaseE (deqp-gles3)
   #15 0x0000000000aacb9f
_ZN4deqp5gles315TestCaseWrapper15iterateTestCaseEPN3tcu8TestCaseE (deqp-gles3)
   #16 0x0000000000fec6cd _ZN3tcu12TestExecutor7iterateEv (deqp-gles3)
   #17 0x0000000000fc31e7 _ZN3tcu3App7iterateEv (deqp-gles3)
   #18 0x0000000000aa92d9 main (deqp-gles3)
   #19 0x00007fa3583a0610 __libc_start_main (libc.so.6)
   #20 0x0000000000aa90c9 _start (deqp-gles3)

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