[Openmp-dev] buildbot failure in LLVM on openmp-gcc-x86_64-linux-debian

[Johannes Doerfert via Openmp-dev]

A lot of these tests seem to have races or at least timing dependent 
behavior.

We recently had to disable some already. Our test infrastructure needs 
two improve here.

We need to run them multiple times if they are necessarily timing dependent.

We also should check if the ones that are need to be, e.g., if they all 
pass when we force

single threaded execution (or if failing is what we want them to do).


Long story short, I doubt you caused the failure but if you are 
interested you could look

into improvements in this area ;)



On 4/21/20 4:47 PM, Joel E. Denny via Openmp-dev wrote:
> It appears that 'libomp :: ompt/tasks/dependences.c' has a race.  I
> don't know how my patches would have caused the failure below, and it
> passed at the next build.
>
> Joel
>
>
> On Tue, Apr 21, 2020 at 5:20 PM <llvm.buildmaster at lab.llvm.org> wrote:
>
>> The Buildbot has detected a new failure on builder
>> openmp-gcc-x86_64-linux-debian while building openmp.
>> Full details are available at:
>>
>> http://lab.llvm.org:8011/builders/openmp-gcc-x86_64-linux-debian/builds/6842
>>
>> Buildbot URL: http://lab.llvm.org:8011/
>>
>> Buildslave for this Build: gribozavr4
>>
>> Build Reason: scheduler
>> Build Source Stamp: [branch master]
>> 5f6aa9680c19534a382cb652178e0ff6edbe78de
>> Blamelist: Joel E. Denny <jdenny.ornl at gmail.com>
>>
>> BUILD FAILED: failed test-openmp
>>
>> sincerely,
>>   -The Buildbot
>>
>>
>>
>>
>
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