[llvm-dev] Non-determinism in libFuzzer tests on AArch64

[Kostya Serebryany via llvm-dev]

I frankly don't even know who supports libFuzzer on aarch64.
Kuba?

+Mitch Phillips <mitchp at google.com> who may get involved with
libFuzzer/aarch64 in near future.

On Fri, Mar 22, 2019 at 8:02 AM Diana Picus <diana.picus at linaro.org> wrote:

> Hi,
>
> I've seen this issue pop up on the mailing list a couple of times
> before with no resolution [1][2][3].
>
> It has been getting really bad for our AArch64 buildbots lately. You
> can see a few examples at the end of my email [4], but we have the
> same failures on a couple of other bots as well.
>
> Does anyone have any idea how to reproduce / investigate these issues?
> If not, is it reasonable to mark the tests as unsupported on AArch64?
>
> Thanks,
> Diana
>
> [1] https://lists.llvm.org/pipermail/llvm-dev/2018-June/124334.html
> [2] http://lists.llvm.org/pipermail/llvm-dev/2019-January/128861.html
> [3] https://lists.llvm.org/pipermail/llvm-dev/2018-November/127701.html
> [4] clang-cmake-aarch64-lld failures:
> http://lab.llvm.org:8011/builders/clang-cmake-aarch64-lld/builds/6264
> http://lab.llvm.org:8011/builders/clang-cmake-aarch64-lld/builds/6262
> http://lab.llvm.org:8011/builders/clang-cmake-aarch64-lld/builds/6260
> http://lab.llvm.org:8011/builders/clang-cmake-aarch64-lld/builds/6255
> http://lab.llvm.org:8011/builders/clang-cmake-aarch64-lld/builds/6253
> http://lab.llvm.org:8011/builders/clang-cmake-aarch64-lld/builds/6250
> http://lab.llvm.org:8011/builders/clang-cmake-aarch64-lld/builds/6247
> http://lab.llvm.org:8011/builders/clang-cmake-aarch64-lld/builds/6245
> http://lab.llvm.org:8011/builders/clang-cmake-aarch64-lld/builds/6237
> http://lab.llvm.org:8011/builders/clang-cmake-aarch64-lld/builds/6235
> http://lab.llvm.org:8011/builders/clang-cmake-aarch64-lld/builds/6229
>
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