[LLVMdev] Flaky asan test?

[Kostya Serebryany]

Hmm... Stil don't see how this may affect this test...

If I run check-libcxx in the asan build (-DLLVM_USE_SANITIZER=Address) I
see that the test reports a true leak.
However, if I run the test many times asan/lsan miss the leak occasionally.
Sergey, could you please take a look? The leak happens in the 2-nd thread,
we sometimes fail to report it.

--kcc


On Fri, Jan 9, 2015 at 7:05 PM, Sanjoy Das <sanjoy at playingwithpointers.com>
wrote:

> Just to note, my change did make an existing bug more likely.  The bug
> is being tracked at http://llvm.org/bugs/show_bug.cgi?id=22179, and I
> have a fix up for review: http://reviews.llvm.org/D6914
>
> On Fri, Jan 9, 2015 at 6:58 PM, Kostya Serebryany <kcc at google.com> wrote:
> > +eric, who introduced the test in r222076.
> > Eric, how does the test fail under asan?
> > Do you expect a leak report?
> >
> > On Tue, Jan 6, 2015 at 3:16 PM, Sanjoy Das <
> sanjoy at playingwithpointers.com>
> > wrote:
> >>
> >> My change 225282 broke an asan test [1], but by the time I got around
> >> to trying to revert it, I noticed that the test had started passing.
> >> Moreover, it seems to have been "fixed" by 225291 which at least does
> >> not seem related to the breakage directly.
> >>
> >> I'm puzzled now -- is the failing asan test flaky?  Should I still
> >> revert 225282?
> >>
> >> Thank you for your time!
> >>
> >> [1]:
> >>
> http://lab.llvm.org:8011/builders/libcxx-libcxxabi-x86_64-linux-ubuntu-asan/builds/98/steps/test.libcxx/logs/stdio
> >>
> >> -- Sanjoy
> >> _______________________________________________
> >> LLVM Developers mailing list
> >> LLVMdev at cs.uiuc.edu         http://llvm.cs.uiuc.edu
> >> http://lists.cs.uiuc.edu/mailman/listinfo/llvmdev
> >
> >
>
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