[zorg] r300573 - Remove the ppc64le-clang-lnt buildbot because it continues to be flaky making it hard to listen to/use buildbots effectively due to the noise.

[Bill Seurer via llvm-commits]

I have disabled a bunch of other tests (temporarily I hope!) so I will 
probably do the same to these.


On 04/25/2017 04:28 PM, Matthias Braun wrote:
> Note that part of the problem here is fixing the underlying problem, the other part is finding ways to avoid mail notification to everyone else once the problem is known.
>
> Usually I would say that you should file a PR against powerpc and/or tsan and mark the tests as "UNSUPPORTED: powerpc" in lit. The last part however doesn't seem to work given that these are written as googletests/unittests. Maybe someone on the tsan/powerpc side wants to edit CMakeLists instead to skip these or all tsan tests on powerpc? (+CC tsan unittest authors)
>
> - Matthias
>
>> On Apr 25, 2017, at 2:10 PM, Bill Seurer via llvm-commits <llvm-commits at lists.llvm.org> wrote:
>>
>> On 04/19/2017 09:23 AM, David Blaikie wrote:
>>> On Wed, Apr 19, 2017 at 6:24 AM Bill Seurer <seurer at linux.vnet.ibm.com
>>> <mailto:seurer at linux.vnet.ibm.com>> wrote:
>>>
>>>    I had previously spent a good chunk of time tracing
>>>    back to the source of other thread-related problems and can adapt the
>>>    scripts I used then to investigate whatever you were seeing.  I suspect
>>>    this might be the same problem as I don't think the previous issues
>>>    were ever fixed.
>>>
>>>
>>> Likely was never fixed, by the sounds of it.
>>
>> I ran 10,000 test iterations on the (then current) revision and found the following tests were problematic:
>>
>>
>> FAIL: ThreadSanitizer-powerpc64le :: ignore_lib1.cc
>>
>> This one fails with some regularity, 48 times in 10,000 runs.
>>
>>
>> FAIL: ThreadSanitizer-powerpc64le :: ignore_lib5.cc
>>
>> Failed 15 times in 10,000 runs.
>>
>>
>> FAIL: AddressSanitizer-powerpc64le-linux :: TestCases/Posix/current_allocated_bytes.cc
>>
>> Failed 4 times in 10,000 runs
>>
>>
>> TestCases/Posix/current_allocated_bytes.cc
>>
>> Failed once in 10,000 runs.
>>
>>
>> I looked back at my notes and the previous problem revision for threads was r279664.  I don't know if that is the case for these.
>> --
>>
>> -Bill Seurer
>>
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>


-- 

-Bill Seurer