core.git: sc/qa

Noel Grandin noelgrandin at
Tue Oct 14 07:28:27 PDT 2014

On 2014-10-14 04:16 PM, Michael Stahl wrote:
> On 14.10.2014 16:04, Tor Lillqvist wrote:
>>      i wonder if there's a buggy OpenCL driver on that Mac that needs to be
>>      blacklisted somewhere?
>> Somebody else was wondering the same earlier this week. But there isn't
>> such a large variety of OpenCL drivers (or whatever the correct term is)
>> on OS X. Either or code is sliughtly buggy, or there is a bug in Apple's
>> OpenCL implementation that manifests itself when the code happens to
>> execute on a specific OpenCL device (i.e. the CPU or a specific GPU).
>> But the OpenCL driver version number as seen by our code is the same in
>> all cases on a certain OS X version, I think. Not sure if we can
>> blacklist only based on OpenCL driver version, or also specific
>> driver+device combinations.
> in any case, somebody needs to investigate *why* the test is failing for
> some, as it may fail for end users too in some scenario then; just
> disabling it on Mac is not the best strategy :)

It doesn't fail reliably, and it only seems to happen under high load.

Anyhow, it's been failing for months and no-one has stepped up, so I commented it out so I can stop ignoring the buildbots.

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