[compiler-rt] r231367 - tsan: fix signal handling during stop-the-world

[Kostya Serebryany]

On Fri, Mar 20, 2015 at 9:59 AM, Galina Kistanova <
gkistanova at accesssoftek.com> wrote:

> Sure I can set you up with the access. That's one of the purposes of
> having the bots in the lab.
>
> Just tell me what you are going to do there, so I could figure out the
> permissions, and when you will be accessing it, so I would stop the builder.
>

I will need the machine to build and run a single C++ test,
so all I need is the access to the clang binary built on this builder
and an ability to compile a test  using that clang.
No need to stop the builder.

>
> Please also send me directly the ssh key you will be using.
>

ok!


>
> Thank you
>
> Galina
>
>
> -----Original Message-----
> From: hwennborg at google.com [mailto:hwennborg at google.com] On Behalf Of
> Hans Wennborg
> Sent: Thursday, March 19, 2015 1:43 PM
> To: David Blaikie
> Cc: Kostya Serebryany; Galina Kistanova; llvm-commits at cs.uiuc.edu
> Subject: Re: [compiler-rt] r231367 - tsan: fix signal handling during
> stop-the-world
>
> I'm hitting this when running 'ninja check-all' on my machine.
>
> If I just run the individual run line, it doesn't crash though.
>
> On Mon, Mar 16, 2015 at 11:37 AM, David Blaikie <dblaikie at gmail.com>
> wrote:
> > Not my bot (& I seem to have lost my local reproduction - it was failing
> > pretty consistently for me last week - perhaps my machine instnalled a
> > software update in the interim), +Galina who might have some more info
> about
> > as-bldslv8.
> >
> > On Mon, Mar 16, 2015 at 11:34 AM, Kostya Serebryany <kcc at google.com>
> wrote:
> >>
> >>
> >>
> >> On Sun, Mar 15, 2015 at 12:34 AM, Dmitry Vyukov <dvyukov at google.com>
> >> wrote:
> >>>
> >>> On Sun, Mar 15, 2015 at 12:32 AM, David Blaikie <dblaikie at gmail.com>
> >>> wrote:
> >>> >> Added:
> >>> >>     compiler-rt/trunk/test/asan/TestCases/Linux/leak_check_segv.cc
> >>> >>
> >>> >>
> >>> >>
> compiler-rt/trunk/test/asan/TestCases/Linux/signal_during_stop_the_world.cc
> >>> >>
> >>> >>
> >>> >>
> compiler-rt/trunk/test/sanitizer_common/TestCases/Linux/signal_segv_handler.cc
> >>> >
> >>> >
> >>> > This test appears to be flaky. Failing every second run here:
> >>> >
> >>> >
> http://lab.llvm.org:8011/builders/clang-x86_64-linux-selfhost-abi-test/builds/2871
> >>> > and failing for me locally.
> >>>
> >>>
> >>> The test does not fail for a bunch of us locally (I run it 5000 times
> >>> locally).
> >>> Can you please run it locally _without_ any tool? Does it fail?
> >>
> >>
> >> Yea, we tried reproducing it on multiple machines with no luck.
> >> Can we have access to the bot?
>
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