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Re: [PATCH] Skip two Ada acats tests
- From: Jakub Jelinek <jakub at redhat dot com>
- To: Laurent GUERBY <laurent at guerby dot net>
- Cc: Dave Korn <dave dot korn dot cygwin at googlemail dot com>, John David Anglin <dave dot anglin at nrc-cnrc dot gc dot ca>, gcc-patches at gcc dot gnu dot org, charlet at act-europe dot fr
- Date: Fri, 7 Aug 2009 10:30:33 +0200
- Subject: Re: [PATCH] Skip two Ada acats tests
- References: <20090730233051.875184CFD@hiauly1.hia.nrc.ca> <4A7240A8.50104@gmail.com> <20090731010142.GA22621@hiauly1.hia.nrc.ca> <4A7259E3.6010009@gmail.com> <1249028964.30373.17.camel@localhost>
- Reply-to: Jakub Jelinek <jakub at redhat dot com>
On Fri, Jul 31, 2009 at 10:29:24AM +0200, Laurent GUERBY wrote:
> A few monthes ago Jakub sent me a list of randomly failing tests from
> his x86_64-linux tester. c954a01 is in his list but not c9a011b.
>
> After some checking I found that the tests in question were failing
> mostly on multicore machines with low load, at the rate of about 1 out
> of 10000 (when test run in loop) and that it was likely related to
> timing issues, that is to say by changing some timing constants
> I was no longer able to get those tests to fail.
>
> I came up with the following patch tweaking timing constants for those
> tests, Jakub is curently testing it and I will formally submit it it
> improves things.
FYI, I've included this patch so far in roughly a dozen bootstraps/regtests
on trunk and 4.4 branch and in all cases there were no acats failures, while
previously there used to be at least one or two in each regtest.
So, I'd appreciate if this could be installed into both trunk and 4.4
branch.
Jakub