[Bug 84207] [SNB+ Regression]igt/gem_render_copy_redux sporadically cause system hang

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=84207

--- Comment #16 from Guo Jinxian <jinxianx.guo at intel.com> ---
Test below cause system hang on HSW IVB

[root at x-hsw27 tests]# time ./gem_userptr_blits --run-subtest
create-destroy-sync
IGT-Version: 1.8-g32a0308 (x86_64) (Linux:
3.17.0-rc6_drm-intel-fixes_c84db7_20140929+ x86_64)
Aperture size is 2048 MiB
Total RAM is 7669 MiB
Testing unsynchronized mappings...
Testing synchronized mappings...




^C

[root at x-ivb9 tests]# time ./gem_userptr_blits --run-subtest create-destroy-sync
IGT-Version: 1.8-g32a0308 (x86_64) (Linux:
3.17.0-rc6_drm-intel-nightly_7101d8_20140929+ x86_64)
Aperture size is 2048 MiB
Total RAM is 3836 MiB
Testing unsynchronized mappings...
Testing synchronized mappings...






^C^C

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