[Bug 79237] igt/gem_userptr_blits fails

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=79237

Chris Wilson <chris at chris-wilson.co.uk> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|REOPENED                    |NEEDINFO

--- Comment #6 from Chris Wilson <chris at chris-wilson.co.uk> ---
(In reply to comment #5)
> (In reply to comment #4)
> > 
> > *** This bug has been marked as a duplicate of bug 80208 ***
> 
> Bug 80208 had fixed, but this bug still able to reproduce on latest
> -nightly(271bff129a641b5b35d99c9eb0ceb866ca42f692),so reopen it.
> 
> Output:
> root at x-byt06:/GFX/Test/Intel_gpu_tools/intel-gpu-tools/tests#
> ./gem_userptr_blits
> IGT-Version: 1.7-ge74dd22 (x86_64) (Linux:
> 3.16.0-rc4_drm-intel-nightly_271bff_20140714+ x86_64)
> Aperture size is 2048 MiB
> Total RAM is 1894 MiB
> Subtest input-checking: SUCCESS
> Subtest usage-restrictions: SUCCESS
> Subtest invalid-mapping: SUCCESS
> Test assertion failure function test_forked_access, file
> gem_userptr_blits.c:583:
> Failed assertion: memcmp(ptr1, ptr2, PAGE_SIZE) == 0
> Subtest forked-access: FAIL
> Subtest forbidden-operations: SUCCESS
> Testing unsynchronized mappings...
> Subtest create-destroy-unsync: SUCCESS
> Subtest unsync-overlap: SUCCESS
> Subtest unsync-unmap: SUCCESS
> Subtest unsync-unmap-cycles: SUCCESS
> Subtest unsync-unmap-after-close: SUCCESS
> Using 2x1365 1MiB buffers
> Verifying initialisation...
> Cyclic blits cpu->gpu, forward...
> Cyclic blits gpu->cpu, backward...
> Random blits...
> Subtest coherency-unsync: SUCCESS
> Bus error

Please attach the usual dmesg and run with IGT_LOG_LEVEL=debug to explain how
it thinks you only have less than 2GiB of ram.

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