[llvm-dev] Some ASan and TSan tests go into an infinite loop on Debian/sid x86_64

[Alexander Potapenko via llvm-dev]

Have you tried attaching gdb to the running test and collecting the stack trace?

On Thu, Jan 28, 2016 at 8:20 AM, Dmitri Gribenko via llvm-dev
<llvm-dev at lists.llvm.org> wrote:
> Hi,
>
> I was just building the top-of-trunk of LLVM/Clang/compiler-rt on
> Debian/sid x86_64 (with gcc (Debian 5.3.1-7) 5.3.1 20160121) and for
> me Asan-x86_64-inline-Test/AddressSanitizer.ManyThreadsTest does not
> finish running:
>
> Note: Google Test filter = AddressSanitizer.ManyThreadsTest
> [==========] Running 1 test from 1 test case.
> [----------] Global test environment set-up.
> [----------] 1 test from AddressSanitizer
> [ RUN      ] AddressSanitizer.ManyThreadsTest
> <just keeps going for minutes>
>
> Same for 'ThreadSanitizer :: mmap_stress.cc', but it doesn't produce any output.
>
> The tests seem to be multithreaded, so I want to mention that this is
> an 18-core VM.  Maybe the tests are not scaling well?
>
> Is this a known issue?
>
> Dmitri
>
> --
> main(i,j){for(i=2;;i++){for(j=2;j<i;j++){if(!(i%j)){j=0;break;}}if
> (j){printf("%d\n",i);}}} /*Dmitri Gribenko <gribozavr at gmail.com>*/
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Alexander Potapenko
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