[Intel-gfx] System freeze apparently due to GPU memory exhaustion - why?

[Adam Nielsen]

> > Have you tried running the I-G-T testing suite on your hardware?  
> 
> No I haven't - do I just install intel-gpu-tools and find some test
> program to run?

I cloned the git repo for this and tried to run the tests as best I
could understand from the readme, but no luck:

  intel-gpu-tools/tests$ ../scripts/run-tests.sh
  Fatal Error: Cannot overwrite existing folder without the -o/--overwrite option being set.

  intel-gpu-tools/tests$ ../scripts/run-tests.sh -o
  Unknown option: -o

So I tried running piglit - the README says "./piglit" but for me
it was "./piglit/piglit" instead:

  intel-gpu-tools$ ./piglit/piglit
  Traceback (most recent call last):
    File "./piglit/piglit", line 165, in <module>
      main()
    File "./piglit/piglit", line 160, in main
      returncode = parsed.func(args)
  AttributeError: 'Namespace' object has no attribute 'func'

Thinking it might not be Python 3 compatible, I tried as Python 2:

  intel-gpu-tools$ python2 ./piglit/piglit run igt output
  ./piglit/framework/test/base.py:76: UserWarning: Timeouts are not available
    warnings.warn('Timeouts are not available')

  Traceback (most recent call last):
    File "./piglit/piglit", line 165, in <module>
      main()
    File "./piglit/piglit", line 160, in main
      returncode = parsed.func(args)
    File "./piglit/framework/exceptions.py", line 50, in _inner
      func(*args, **kwargs)
    File "./piglit/framework/programs/run.py", line 280, in run
      profile = framework.profile.merge_test_profiles(args.test_profile)
    File "./piglit/framework/profile.py", line 444, in merge_test_profiles
      profile = load_test_profile(profiles.pop())
    File "./piglit/framework/profile.py", line 422, in load_test_profile
      os.path.splitext(os.path.basename(filename))[0]))
    File "/usr/lib/python2.7/importlib/__init__.py", line 37, in import_module
      __import__(name)
    File "./piglit/tests/igt.py", line 177, in <module>
      populate_profile()
    File "./piglit/tests/igt.py", line 174, in populate_profile
      add_subtest_cases(test)
    File "./piglit/tests/igt.py", line 150, in add_subtest_cases
      universal_newlines=True)
    File "/usr/lib/python2.7/subprocess.py", line 566, in check_output
      process = Popen(stdout=PIPE, *popenargs, **kwargs)
    File "/usr/lib/python2.7/subprocess.py", line 710, in __init__
      errread, errwrite)
    File "/usr/lib/python2.7/subprocess.py", line 1231, in _execute_child
      self.pid = os.fork()
  OSError: [Errno 12] Cannot allocate memory

Not sure why fork() is throwing an error - the system isn't *that*
broken...

Any suggestions what to try next, assuming you want these tests run
after the GPU error has occurred?

Thanks,
Adam.