[llvm-dev] [lit] check-all hanging

[Dmitry Vyukov via llvm-dev]

On Thu, Jan 3, 2019 at 11:54 PM Kuba Mracek <mracek at apple.com> wrote:
>
>
>
> > On Jan 3, 2019, at 1:21 PM, David Greene via llvm-dev <llvm-dev at lists.llvm.org> wrote:
> >
> > Chandler Carruth via llvm-dev <llvm-dev at lists.llvm.org> writes:
> >
> >> What you're seeing is just the fact that lit is waiting on
> >> subprocesses (select is waiting on the pipes i suspect).
> >
> > Right.  Some digging revealed that it is waiting on
> > getline_nohang.cc.tmp, a tsan test.
> >
> > I see that this test has been disabled for NetBSD, due to it sometimes
> > failing.  I'm seeing the same on Linux.
> >
> > How can we stabilize the sanitizer tests so that check-all can work
> > reliably?  If some sanitizer tests are so flaky, I should think they
> > should be marked UNSUPPORTED.  Who has the authority to make those
> > determinations?
>
> Dmitry Vyukov does. CC'ing him.


Are there any special repro instructions? I am running all tsan tests
periodically on linux and none of them flakes.