From: Jeff King <peff@peff.net>
To: "SZEDER Gábor" <szeder.dev@gmail.com>
Cc: Johannes Sixt <j6t@kdbg.org>, Junio C Hamano <gitster@pobox.com>,
David Turner <dturner@twosigma.com>,
Git mailing list <git@vger.kernel.org>
Subject: Re: [PATCH] t6500: don't run detached auto gc at the end of the test script
Date: Tue, 11 Apr 2017 20:50:11 -0400 [thread overview]
Message-ID: <20170412005011.46tr4mgsxk7chgfz@sigill.intra.peff.net> (raw)
In-Reply-To: <CAM0VKjmuCjLBFAErXP06wu0+-7SdWVMaVu_g25Q4V-uQz8T1uA@mail.gmail.com>
On Wed, Apr 12, 2017 at 02:27:05AM +0200, SZEDER Gábor wrote:
> >> I wonder if you could make it a general test-lib function, like:
> >>
> >> run_and_wait () {
> >> # we read stdout from the child only for the side effect
> >> # of waiting until all child sub-processes exit, closing their
> >> # fd 9.
> >> does_not_matter=$("$@" 9>&1)
> >
> >
> > I'm afraid this won't work on Windows when the invoked command is git. FD
> > inheritance between MSYS (bash) and non-MSYS programs (git) is only
> > implemented for FDs 0,1,2. That's a deficiency of MSYS, and I don't think
> > that was improved in MSYS2.
>
> Oh, that's a pity, I was almost ready with v2...
>
> Unfortunately, this makes the general helper function unworkable, of
> course. Though in this particular case it wouldn't matter, because on
> Windows daemonize() is basically a noop and 'git gc --auto' remains in
> the foreground anyway.
That makes it tempting to use in this scenario as a one-off with a
comment.
> I think we should stick with my initial patch, then.
I'm not entirely opposed, but my understanding was that it didn't
actually fix the race, it just made it a bit bigger. Which is sort of
unsatisfying.
I couldn't get the original to show a failure, though, even under heavy
load. So maybe widening the race is enough.
-Peff
next prev parent reply other threads:[~2017-04-12 0:50 UTC|newest]
Thread overview: 41+ messages / expand[flat|nested] mbox.gz Atom feed top
2017-04-10 12:59 [PATCH] t6500: don't run detached auto gc at the end of the test script SZEDER Gábor
2017-04-10 13:58 ` Jeff King
2017-04-10 16:31 ` SZEDER Gábor
2017-04-10 16:35 ` Jeff King
2017-04-10 16:56 ` SZEDER Gábor
2017-04-10 17:01 ` Jeff King
2017-04-11 21:32 ` Johannes Sixt
2017-04-12 0:27 ` SZEDER Gábor
2017-04-12 0:50 ` Jeff King [this message]
2017-04-12 22:03 ` SZEDER Gábor
2017-04-12 22:07 ` [PATCHv2] " SZEDER Gábor
2017-04-13 10:31 ` [PATCHv2.1] t6500: wait for " SZEDER Gábor
2017-04-13 16:06 ` David Turner
2017-04-13 16:44 ` Jeff King
2017-04-13 18:08 ` SZEDER Gábor
2017-04-13 18:12 ` Jeff King
2017-04-13 16:37 ` [PATCH] t6500: don't run " Jeff King
2017-04-13 17:55 ` Stefan Beller
2017-04-13 17:57 ` Jeff King
2017-04-13 19:03 ` SZEDER Gábor
2017-04-13 19:12 ` Jeff King
2017-04-13 19:35 ` SZEDER Gábor
2017-04-14 20:08 ` Jeff King
2017-04-20 16:42 ` SZEDER Gábor
2017-04-20 16:45 ` Jeff King
2017-04-20 16:52 ` [PATCH] test-lib: abort when can't remove trash directory SZEDER Gábor
2017-04-20 19:06 ` Jeff King
2017-04-21 0:48 ` Junio C Hamano
2017-04-21 20:06 ` SZEDER Gábor
2017-04-21 20:15 ` Jeff King
2017-04-24 0:14 ` Junio C Hamano
2017-04-24 1:43 ` Jeff King
2017-04-24 2:58 ` Junio C Hamano
2017-04-24 4:02 ` Junio C Hamano
2017-04-24 7:52 ` Jeff King
2017-04-24 9:39 ` Torsten Bögershausen
2017-04-24 9:46 ` Jeff King
2017-04-25 2:31 ` Junio C Hamano
2017-04-25 6:05 ` Junio C Hamano
2017-04-25 6:07 ` Jeff King
2017-04-25 6:31 ` Junio C Hamano
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