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From:   Junio C Hamano <gitster@pobox.com>
To:     tsuna <tsunanet@gmail.com>
Cc:     git@vger.kernel.org
Subject: Re: Deadlock between git-remote-http and git fetch-pack
References: <CAFKYj4cMSK5nQ1nS66c4Opz8y7x+xQH+OdW8PTi7LmCiGBP1ZA@mail.gmail.com>
Date:   Fri, 27 Jan 2017 15:34:21 -0800
In-Reply-To: <CAFKYj4cMSK5nQ1nS66c4Opz8y7x+xQH+OdW8PTi7LmCiGBP1ZA@mail.gmail.com>
        (tsuna's message of "Fri, 27 Jan 2017 14:31:15 -0800")
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tsuna <tsunanet@gmail.com> writes:

> While investigating a hung job in our CI system today, I think I found
> a deadlock in git-remote-http
> ...
> Here PID 27319 (git fetch-pack) is stuck reading on stdin, while its
> parent, PID 27317 (git-remote-http) is stuck reading on its child=E2=80=
=99s
> stdout.  Nothing has moved for like 2h, it=E2=80=99s deadlocked.

Hmph, would this be related to 296b847c0d ("remote-curl: don't hang
when a server dies before any output", 2016-11-18) I wonder...