[llvm-dev] AArch64 buildbots and PR33972

[Renato Golin via llvm-dev]

On 24 August 2017 at 10:38, Diana Picus <diana.picus at linaro.org> wrote:
> Hi all,
>
> It turns out we lost coverage of the release configuration on the
> AArch64 buildbots for a while. This is because the machine that we
> were running the clang-cmake-aarch64-full bot on became unstable
> (random shutdowns after a day or two of building).

I risk guess that the random shutdowns started around the time when
the OOM tests were being introduced, so not likely the machine itself,
but the tests.

We had similar problems when running glibc memory tests, so I believe
bringing the bot back up is the only sane way to make sure.

Trying to allocate 30TB is not a good type of test on so many
different hardware and operating systems we have as buildbots. I think
we need to be a bit more practical and try to create environments
where the memory is limited well below the actual hardware (different
OSs have different ways to do that) and then try to allocate a small
amount of memory. It would be better to have it working on at least
one arch/OS than to go the full monty on all OSs and architectures.

--renato