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From: "SZEDER Gábor" <szeder.dev@gmail.com>
To: Jeff King <peff@peff.net>
Cc: git@vger.kernel.org
Subject: Re: [RFC PATCH 3/3] test-lib: add the '--stress' option to run a test repeatedly under load
Date: Thu, 6 Dec 2018 23:56:01 +0100	[thread overview]
Message-ID: <20181206225601.GO30222@szeder.dev> (raw)
In-Reply-To: <20181205213625.GD19936@sigill.intra.peff.net>

On Wed, Dec 05, 2018 at 04:36:26PM -0500, Jeff King wrote:
> The signal interrupts the first wait.

Ah, of course.  I'm ashamed to say that this is not the first time I
forget about that...

> > Bash 4.3 or later are strange: I get back the shell prompt immediately
> > after ctrl-C as well, so it doesn't appear to be waiting for all
> > remaining jobs to finish either, but! I don't get any of the progress
> > output from those jobs to mess up my next command.
> 
> Interesting. My bash 4.4 seems to behave the same as dash. It almost
> sounds like the SIGINT is getting passed to the subshells for you.
> Probably not really worth digging into, though.

The subshell does indeed get SIGINT.  I don't know why that happens,
to my understanding that should not happen.

> In case anybody is playing with this and needed to simulate a stress
> failure, here's what I used:
> 
> diff --git a/t/t0000-basic.sh b/t/t0000-basic.sh
> index b6566003dd..a370cd9977 100755
> --- a/t/t0000-basic.sh
> +++ b/t/t0000-basic.sh
> @@ -1171,4 +1171,11 @@ test_expect_success 'very long name in the index handled sanely' '
>  	test $len = 4098
>  '
>  
> +test_expect_success 'roll those dice' '
> +	case "$(openssl rand -base64 1)" in
> +	z*)
> +		return 1
> +	esac
> +'

Wasteful :)

  test $(($$ % 42)) -ne 0


  parent reply	other threads:[~2018-12-06 22:56 UTC|newest]

Thread overview: 67+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2018-12-04 16:34 [RFC PATCH 0/3] test-lib: add the '--stress' option to help reproduce occasional failures in flaky tests SZEDER Gábor
2018-12-04 16:34 ` [PATCH 1/3] test-lib: consolidate naming of test-results paths SZEDER Gábor
2018-12-05  4:57   ` Jeff King
2018-12-04 16:34 ` [PATCH 2/3] test-lib-functions: introduce the 'test_set_port' helper function SZEDER Gábor
2018-12-05  5:17   ` Jeff King
2018-12-05 12:20     ` SZEDER Gábor
2018-12-05 21:59       ` Jeff King
2018-12-04 16:34 ` [RFC PATCH 3/3] test-lib: add the '--stress' option to run a test repeatedly under load SZEDER Gábor
2018-12-04 17:04   ` Ævar Arnfjörð Bjarmason
2018-12-04 17:37     ` SZEDER Gábor
2018-12-05  5:46     ` Jeff King
2018-12-04 18:11   ` Ævar Arnfjörð Bjarmason
2018-12-05  5:50     ` Jeff King
2018-12-05 12:07     ` SZEDER Gábor
2018-12-05 14:01       ` Ævar Arnfjörð Bjarmason
2018-12-05 14:39         ` SZEDER Gábor
2018-12-05 19:59           ` Ævar Arnfjörð Bjarmason
2018-12-05  5:44   ` Jeff King
2018-12-05 10:34     ` SZEDER Gábor
2018-12-05 21:36       ` Jeff King
2018-12-06  0:22         ` Junio C Hamano
2018-12-06  5:35           ` Jeff King
2018-12-06  6:41             ` Junio C Hamano
2018-12-06 22:56         ` SZEDER Gábor [this message]
2018-12-07  1:03           ` Jeff King
2018-12-05 14:01     ` SZEDER Gábor
2018-12-05 21:56       ` Jeff King
2018-12-06 23:10         ` SZEDER Gábor
2018-12-07  1:14           ` Jeff King
2018-12-09 22:56 ` [PATCH v2 0/7] test-lib: add the '--stress' option to help reproduce occasional failures in flaky tests SZEDER Gábor
2018-12-09 22:56   ` [PATCH v2 1/7] test-lib: translate SIGTERM and SIGHUP to an exit SZEDER Gábor
2018-12-11 10:57     ` Jeff King
2018-12-09 22:56   ` [PATCH v2 2/7] test-lib: parse some --options earlier SZEDER Gábor
2018-12-11 11:09     ` Jeff King
2018-12-11 12:42       ` SZEDER Gábor
2018-12-17 21:44         ` Jeff King
2018-12-30 19:04           ` SZEDER Gábor
2019-01-03  4:53             ` Jeff King
2018-12-09 22:56   ` [PATCH v2 3/7] test-lib: consolidate naming of test-results paths SZEDER Gábor
2018-12-09 22:56   ` [PATCH v2 4/7] test-lib: set $TRASH_DIRECTORY earlier SZEDER Gábor
2018-12-09 22:56   ` [PATCH v2 5/7] test-lib: extract Bash version check for '-x' tracing SZEDER Gábor
2018-12-09 22:56   ` [PATCH v2 6/7] test-lib-functions: introduce the 'test_set_port' helper function SZEDER Gábor
2018-12-09 22:56   ` [PATCH v2 7/7] test-lib: add the '--stress' option to run a test repeatedly under load SZEDER Gábor
2018-12-10  1:34     ` [PATCH] fixup! " SZEDER Gábor
2018-12-11 11:16   ` [PATCH v2 0/7] test-lib: add the '--stress' option to help reproduce occasional failures in flaky tests Jeff King
2018-12-30 19:16   ` [PATCH v3 0/8] " SZEDER Gábor
2018-12-30 19:16     ` [PATCH v3 1/8] test-lib: translate SIGTERM and SIGHUP to an exit SZEDER Gábor
2018-12-30 19:16     ` [PATCH v3 2/8] test-lib: parse options in a for loop to keep $@ intact SZEDER Gábor
2018-12-30 19:16     ` [PATCH v3 3/8] test-lib: parse command line options earlier SZEDER Gábor
2018-12-30 19:16     ` [PATCH v3 4/8] test-lib: consolidate naming of test-results paths SZEDER Gábor
2018-12-30 19:16     ` [PATCH v3 5/8] test-lib: set $TRASH_DIRECTORY earlier SZEDER Gábor
2018-12-30 22:44       ` SZEDER Gábor
2018-12-30 22:48         ` [PATCH v3.1 " SZEDER Gábor
2018-12-30 19:16     ` [PATCH v3 6/8] test-lib: extract Bash version check for '-x' tracing SZEDER Gábor
2018-12-31 17:14       ` Carlo Arenas
2018-12-30 19:16     ` [PATCH v3 7/8] test-lib-functions: introduce the 'test_set_port' helper function SZEDER Gábor
2018-12-30 19:16     ` [PATCH v3 8/8] test-lib: add the '--stress' option to run a test repeatedly under load SZEDER Gábor
2019-01-05  1:08     ` [PATCH v4 0/8] test-lib: add the '--stress' option to help reproduce occasional failures in flaky tests SZEDER Gábor
2019-01-05  1:08       ` [PATCH v4 1/8] test-lib: translate SIGTERM and SIGHUP to an exit SZEDER Gábor
2019-01-05  1:08       ` [PATCH v4 2/8] test-lib: extract Bash version check for '-x' tracing SZEDER Gábor
2019-01-05  1:08       ` [PATCH v4 3/8] test-lib: parse options in a for loop to keep $@ intact SZEDER Gábor
2019-01-05  1:08       ` [PATCH v4 4/8] test-lib: parse command line options earlier SZEDER Gábor
2019-01-05  1:08       ` [PATCH v4 5/8] test-lib: consolidate naming of test-results paths SZEDER Gábor
2019-01-05  1:08       ` [PATCH v4 6/8] test-lib: set $TRASH_DIRECTORY earlier SZEDER Gábor
2019-01-05  1:08       ` [PATCH v4 7/8] test-lib-functions: introduce the 'test_set_port' helper function SZEDER Gábor
2019-01-05  1:08       ` [PATCH v4 8/8] test-lib: add the '--stress' option to run a test repeatedly under load SZEDER Gábor
2019-01-07  8:49       ` [PATCH v4 0/8] test-lib: add the '--stress' option to help reproduce occasional failures in flaky tests Jeff King

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