[Bug 104213] NULL pointer access crashes on compiling Vulkan compute shaders after "anv: Add support for the variablePointers feature"

bugzilla-daemon at freedesktop.org bugzilla-daemon at freedesktop.org
Mon Dec 11 16:11:49 UTC 2017


https://bugs.freedesktop.org/show_bug.cgi?id=104213

Eero Tamminen <eero.t.tamminen at intel.com> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
            Summary|Vulkan shader compiler      |NULL pointer access crashes
                   |crashes to NULL pointer     |on compiling Vulkan compute
                   |access with compute shaders |shaders after "anv: Add
                   |                            |support for the
                   |                            |variablePointers feature"

--- Comment #2 from Eero Tamminen <eero.t.tamminen at intel.com> ---
"bank_conflict_cycles" cannot affect this, it came with later commit.

Bisect gave following as the commit causing segfaults:
-----------------------------------------------------------
commit 8761a04d0d9332d9c0c99164faf855fc3c741f7c
Author:     Jason Ekstrand <jason.ekstrand at intel.com>
AuthorDate: Wed Oct 18 18:02:49 2017 -0700
Commit:     Jason Ekstrand <jason.ekstrand at intel.com>
CommitDate: Tue Dec 5 22:01:54 2017 -0800

    anv: Add support for the variablePointers feature

    Not to be confused with variablePointersStorageBuffer which is the
    subset of VK_KHR_variable_pointers required to enable the extension.
    This means we now have "full" support for variable pointers.

    Reviewed-by: Kristian H. Kristensen <hoegsberg at google.com>
-----------------------------------------------------------

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