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Thu, 3 Oct 2024 23:59:37 -0400 (EDT) Received: by vm-mail (OpenSMTPD) with ESMTPSA id ac92fb9c (TLSv1.3:TLS_AES_256_GCM_SHA384:256:NO); Fri, 4 Oct 2024 03:58:43 +0000 (UTC) Date: Fri, 4 Oct 2024 05:59:30 +0200 From: Patrick Steinhardt To: Ramsay Jones Cc: GIT Mailing-list , Junio C Hamano Subject: Re: v2.47.0-rc1 test failure on cygwin Message-ID: References: Precedence: bulk X-Mailing-List: git@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: On Fri, Oct 04, 2024 at 02:02:44AM +0100, Ramsay Jones wrote: > Hi Patrick, > > Just a quick heads up: t0610-reftable-basics.sh test 47 (ref transaction: many > concurrent writers) fails on cygwin. The tail end of the debug output for this > test looks like: > [snip] > > t0610-reftable-basics.sh passed on 'rc0', but this test (and the timeout facility) > is new in 'rc1'. I tried simply increasing the timeout (10 fold), but that didn't > change the result. (I didn't really expect it to - the 'reftable: transaction > prepare: I/O error' does not look timing related!). > > Again, just a heads up. (I can't look at it until tomorrow now; any ideas?) This failure is kind of known and discussed in [1]. Just to make it explicit: this test failure doesn't really surface a regression, the reftable code already failed for concurrent writes before. I fixed that and added the test that is now flaky, as the fix itself is seemingly only sufficient on Linux and macOS. I didn't yet have the time to look at whether I can fix it, but should finally find the time to do so today. Patrick [1]: <20240927040752.GA567671@coredump.intra.peff.net>