v2.15.0-rc1 test failure

> Hi Adam,
> 
> I had a test failure on the v2.15.0-rc1 build tonight.
> The test in question being t0021-conversion.sh #15
> ('required process filter should filter data'). I didn't
> have any test failures on v2.15.0-rc0, and I don't see
> any change that would have affected this test.
> 
> Also, I ran this test by hand (well, in a shell loop) at
> least 70 times tonight (after the test-suite run), without
> any failures, so ... (unfortunately, I don't have a trash
> directory to look at. :( )
> 
> I have just kicked off another full test-suite run.
> 
> Just a heads up! ;-)

> Hi Adam,
> 
> I had a test failure on the v2.15.0-rc1 build tonight.
> The test in question being t0021-conversion.sh #15
> ('required process filter should filter data'). I didn't
> have any test failures on v2.15.0-rc0, and I don't see
> any change that would have affected this test.
> 
> Also, I ran this test by hand (well, in a shell loop) at
> least 70 times tonight (after the test-suite run), without
> any failures, so ... (unfortunately, I don't have a trash
> directory to look at. :( )
> 
> I have just kicked off another full test-suite run.
> 
> Just a heads up! ;-)

> t0021.15 has PERL as a requirement, and I see semi-regular failures from
> Git tests that are Perl-based in one way or another (git-svn tests are
> the most common problems).  I've not spotted t0021 failing in that way,
> but it sounds like the same class of problem.
>
> I dig into these failures when I see them, mostly by running the script
> a few hundred times until I get the failure again, and they've always
> been Perl itself segfaulting.  That points to the problem being in
> Cygwin's Perl package rather than Git, and it's very unlikely to be
> anything that's got worse in v2.15.0.

> I dig into these failures when I see them, mostly by running the script
> a few hundred times until I get the failure again, and they've always
> been Perl itself segfaulting.  That points to the problem being in
> Cygwin's Perl package rather than Git, and it's very unlikely to be
> anything that's got worse in v2.15.0.

> On 11/10/17 23:34, Adam Dinwoodie wrote:
> [snip]
> > Hi Ramsay,
> > 
> > I assume, given you're emailing me, that this is a Cygwin failure?
> 
> Yes, sorry, I should have made that clear.
> 
> > t0021.15 has PERL as a requirement, and I see semi-regular failures from
> > Git tests that are Perl-based in one way or another (git-svn tests are
> > the most common problems).  I've not spotted t0021 failing in that way,
> > but it sounds like the same class of problem.
> 
> Yep, many moons ago, I used to run the svn tests (on Linux and cygwin)
> which would fail intermittently on cygwin. I didn't notice any problem
> with perl though.
> 
> > I dig into these failures when I see them, mostly by running the script
> > a few hundred times until I get the failure again, and they've always
> > been Perl itself segfaulting.  That points to the problem being in
> > Cygwin's Perl package rather than Git, and it's very unlikely to be
> > anything that's got worse in v2.15.0.
> 
> Since I stopped running the svn tests, the number of intermittent test failures on cygwin have dropped significantly, but haven't gone away
> completely.
> 
> I just finished the second test-suite run and, of course, t0021 ran
> without problem this time. Hmm, I don't think I have time to chase
> this down at the moment. I will keep your 'perl hypothesis' in mind
> for next time, however.