[llvm-dev] greendragon build noisy due to mmap_stress.cc

[Chris Matthews via llvm-dev]

These ran to completion without error. :(

> On Jan 12, 2016, at 3:23 PM, Chris Matthews <chris.matthews at apple.com> wrote:
> 
> I’m running this on green-dragon-03 which is running OSX 10.10.5.
> 
> /Users/buildslave/jenkins/sharedspace/clang-stage1-cmake-RA_workspace\@2/clang-build/bin/clang++ ../llvm/projects/compiler-rt/test/tsan/mmap_stress.cc -lpthread 
> while true; do for((i=0;i<10;i++)); do ./a.out || echo ===============FAILED================ & done ; wait; done
> 
> Seems like it is getting about 225 runs a minute, so it will take about 8 hours to complete 100k runs.
> 
>> On Jan 12, 2016, at 1:28 PM, Tobias Grosser via llvm-dev <llvm-dev at lists.llvm.org <mailto:llvm-dev at lists.llvm.org>> wrote:
>> 
>> On 01/12/2016 10:26 PM, Kostya Serebryany wrote:
>>> Hi Tobias,
>>> 
>>> What machine is that?
>>> We have seen this and similar tests be flaky on older Linux kernels due
>>> to kernel bug(s).
>>> May I ask you to run the same test (just built with clang) on the same
>>> machine for ~100000 times and see if it ever crashes?
>>> 
>>> clang++ ~/llvm/projects/compiler-rt/test/tsan/mmap_stress.cc -lpthread
>>> while true; do for((i=0;i<10;i++)); do ./a.out || echo
>>> ===============FAILED================ & done ; wait; done
>> 
>> Add Michael again (who might have access to this Machine).
>> 
>> Tobias
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> 

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