[Bug 88482] [BSW]igt/gem_evict_alignment/minor-hang will cause GPU hang and Call Trace

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=88482

--- Comment #5 from ye.tian <yex.tian at intel.com> ---
Tested it on BSW with the latest nightly kernel(d60065) and the latest
igt(1.10-gbeddb3b), this case still fails.

output:
----------------
root at x-bsw01:/GFX/Test/Intel_gpu_tools/intel-gpu-tools/tests# time
./gem_evict_alignment  --run-subtest minor-hang
IGT-Version: 1.10-gbeddb3b (x86_64) (Linux:
4.0.0_drm-intel-nightly_d60065_20150417+ x86                                   
                                            _64)
Test assertion failure function copy, file gem_evict_alignment.c:130:
Failed assertion: ret == error
error: 0 != 28
Stack trace:
  #0 [__igt_fail_assert+0xf1]
  #1 [major_evictions.constprop.0+0x0]
  #2 [minor_evictions.constprop.1+0x14e]
  #3 [__real_main194+0x1bc]
  #4 [main+0x21]
  #5 [__libc_start_main+0xf5]
  #6 [_start+0x29]
  #7 [<unknown>+0x29]
Subtest minor-hang failed.
**** DEBUG ****
Checking 3072 surfaces of size 1048576 bytes (total 3222798336) against RAM
Test requirement passed: !(total <= required)
Test requirement passed: !igt_run_in_simulation()
Test assertion failure function copy, file gem_evict_alignment.c:130:
Failed assertion: ret == error
error: 0 != 28
****  END  ****
Subtest minor-hang: FAIL (2.951s)

real    0m6.263s
user    0m0.018s
sys     0m3.516s

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