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

[Chris Matthews via llvm-dev]

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> 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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