[Bug 81326] [BDW Regression]igt/gem_reloc_vs_gpu/forked-faulting-reloc fails

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=81326

--- Comment #1 from Guo Jinxian <jinxianx.guo at intel.com> ---
This bug is able to reproduce on BYT on latest
-nightly（271bff129a641b5b35d99c9eb0ceb866ca42f692）
Case list：
igt/gem_reloc_vs_gpu/forked
igt/gem_reloc_vs_gpu/forked-faulting-reloc
igt/gem_reloc_vs_gpu/forked-faulting-reloc-thrash-inactive
igt/gem_reloc_vs_gpu/forked-faulting-reloc-thrashing
igt/gem_reloc_vs_gpu/forked-interruptible
igt/gem_reloc_vs_gpu/forked-interruptible-faulting-reloc
igt/gem_reloc_vs_gpu/forked-interruptible-faulting-reloc-thrash-inactive
igt/gem_reloc_vs_gpu/forked-interruptible-faulting-reloc-thrashing
igt/gem_reloc_vs_gpu/forked-interruptible-thrash-inactive
igt/gem_reloc_vs_gpu/forked-interruptible-thrashing
igt/gem_reloc_vs_gpu/forked-thrash-inactive
igt/gem_reloc_vs_gpu/forked-thrashing


Output：
root at x-bytm02:/GFX/Test/Intel_gpu_tools/intel-gpu-tools/tests#
./gem_reloc_vs_gpu --run-subtest forked-faulting-reloc-thrash-inactive
IGT-Version: 1.7-ge74dd22 (x86_64) (Linux:
3.16.0-rc4_drm-intel-nightly_271bff_20140714+ x86_64)
Test assertion failure function do_test, file gem_reloc_vs_gpu.c:260:
Failed assertion: test == 0xdeadbeef
mismatch in buffer 1: 0x00000000 instead of 0xdeadbeef
child 3 failed with exit status 99
Subtest forked-faulting-reloc-thrash-inactive: FAIL

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