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From: "Ævar Arnfjörð Bjarmason" <avarab@gmail.com>
To: Johannes Schindelin via GitGitGadget <gitgitgadget@gmail.com>
Cc: git@vger.kernel.org, Ben Peart <benpeart@microsoft.com>,
	Junio C Hamano <gitster@pobox.com>
Subject: Re: [PATCH 0/2] Fix fsmonitor after discard_index()
Date: Mon, 18 Mar 2019 12:05:32 +0100	[thread overview]
Message-ID: <87ef74a1dv.fsf@evledraar.gmail.com> (raw)
In-Reply-To: <pull.165.git.gitgitgadget@gmail.com>


On Sat, Mar 16 2019, Johannes Schindelin via GitGitGadget wrote:

> It was reported by Ævar Arnfjörð Bjarmason
> [https://public-inbox.org/git/nycvar.QRO.7.76.6.1903142058130.41@tvgsbejvaqbjf.bet/T/#mb8718fe52e4721dacd3b143a09187ff9090ef4e3]
> that there were problems with the fsmonitor feature in conjunction with the
> newly built-in git stash/git rebase.
>
> The culprit really is that the fsmonitor flag that says whether it was
> queried already was not re-set after discard_index() was called by mistake.
>
> This fixes that, and apparently also other long-standing fsmonitor issues.

I've added this to my internal build & now the test suite passes in the
fsmonitor mode without any test skipping.

> (Note that there is still a flakiness around t7519
> [https://github.com/git-for-windows/git/pull/2127#pullrequestreview-215010574]
> where it tries to make sure that the fsmonitor hook can prevent unnecessary
> lstat() calls, but that seems to be unrelated to this here bug.)

FWIW Since February 1st, 2018 I've run my builds on CentOS [67] through
an GIT_FSMONITOR_TEST=$PWD/t7519/fsmonitor-all test and have never
encountered this flakyness, and I built pretty much on every "next"
push-out.

The fix sounds good, just one data point on the rarity of the race in
practice. I hadn't noticed this being flaky.

  parent reply	other threads:[~2019-03-18 11:05 UTC|newest]

Thread overview: 17+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2019-03-16  9:49 [PATCH 0/2] Fix fsmonitor after discard_index() Johannes Schindelin via GitGitGadget
2019-03-16  9:49 ` [PATCH 1/2] fsmonitor: demonstrate that it is not refreshed " Johannes Schindelin via GitGitGadget
2019-03-16 10:26   ` Johannes Sixt
2019-03-21 12:32     ` Johannes Schindelin
2019-03-16  9:49 ` [PATCH 2/2] fsmonitor: force a refresh after the index was discarded Johannes Schindelin via GitGitGadget
2019-03-18 11:05 ` Ævar Arnfjörð Bjarmason [this message]
2019-03-21 14:36   ` [PATCH 0/2] Fix fsmonitor after discard_index() Johannes Schindelin
2019-05-23 20:49   ` Johannes Schindelin
2019-03-21 13:57 ` [PATCH v2 " Johannes Schindelin via GitGitGadget
2019-03-21 13:57   ` [PATCH v2 1/2] fsmonitor: demonstrate that it is not refreshed " Johannes Schindelin via GitGitGadget
2019-03-21 13:57   ` [PATCH v2 2/2] fsmonitor: force a refresh after the index was discarded Johannes Schindelin via GitGitGadget
2019-03-22 11:04     ` SZEDER Gábor
2019-05-07 11:10   ` [PATCH v3 0/2] Fix fsmonitor after discard_index() Ævar Arnfjörð Bjarmason
2019-05-07 14:00     ` Junio C Hamano
2019-05-08  3:12       ` Junio C Hamano
2019-05-07 11:10   ` [PATCH v3 1/2] fsmonitor: demonstrate that it is not refreshed " Ævar Arnfjörð Bjarmason
2019-05-07 11:10   ` [PATCH v3 2/2] fsmonitor: force a refresh after the index was discarded Ævar Arnfjörð Bjarmason

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