[llvm-dev] clang-ppc64be-linux-lnt flakiness

Sean Silva via llvm-dev llvm-dev at lists.llvm.org
Tue Jun 28 19:42:29 PDT 2016


This just failed again:
http://lab.llvm.org:8011/builders/clang-ppc64le-linux-multistage/builds/1579

Bill, could you take a look at this? This is like the 3rd time I've been
incorrectly pinged by this buildbot due to this issue.

-- Sean Silva

On Mon, Jun 13, 2016 at 8:07 PM, Sean Silva <chisophugis at gmail.com> wrote:

> Thanks for taking a look. The flaky ASan test failure in the OP was stage1
> so it sounds like there may be multiple problems :(
>
>
> -- Sean Silva
>
> On Sun, Jun 12, 2016 at 7:32 AM, Benjamin Kramer <benny.kra at gmail.com>
> wrote:
>
>> I threw all the sanitizers I had access to on this test and didn't
>> find anything. The merging uses threads so I can't rule out
>> nondeterminism. It's strange that it only happens on ppc64le and only
>> on stage 2, so an actual miscompile wouldn't surprise me either.
>>
>> On Sun, Jun 12, 2016 at 4:26 PM, Sean Silva <chisophugis at gmail.com>
>> wrote:
>> > Also, `Clang Tools :: include-fixer/merge.test` seems to be a bit flaky:
>> >
>> >
>> http://lab.llvm.org:8011/builders/clang-ppc64le-linux-multistage/builds/1304
>> >
>> http://lab.llvm.org:8011/builders/clang-ppc64le-linux-multistage/builds/1315
>> >
>> > Ben, it looks like you're the one that added that test. Is there any
>> chance
>> > it could be a nondeterminism or something in the code?
>> >
>> > -- Sean Silva
>> >
>> > On Sun, Jun 12, 2016 at 1:41 AM, Sean Silva <chisophugis at gmail.com>
>> wrote:
>> >>
>> >> Hi Bill, just a heads up but this bot seems to have spuriously failed
>> on a
>> >> build that only pulled in my commit r272505 which is unrelated.
>> >>
>> >> http://lab.llvm.org:8011/builders/clang-ppc64be-linux-lnt/builds/4883
>> >>
>> >> -- Sean Silva
>> >
>> >
>>
>
>
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