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From: Junio C Hamano <gitster@pobox.com>
To: Jeff King <peff@peff.net>
Cc: "SZEDER Gábor" <szeder.dev@gmail.com>,
	git@vger.kernel.org,
	"Johannes Schindelin" <Johannes.Schindelin@gmx.de>
Subject: Re: do people find t5504.8 flaky?
Date: Wed, 13 Nov 2019 12:47:56 +0900	[thread overview]
Message-ID: <xmqqh838bfo3.fsf@gitster-ct.c.googlers.com> (raw)
In-Reply-To: <20191113010337.GA20023@sigill.intra.peff.net> (Jeff King's message of "Tue, 12 Nov 2019 20:03:37 -0500")

Jeff King <peff@peff.net> writes:

> So really, what we want for this case is to just get the remote status,
> like so:
>
> diff --git a/send-pack.c b/send-pack.c
> index 34c77cbb1a..d4db965b96 100644
> --- a/send-pack.c
> +++ b/send-pack.c
> @@ -565,19 +565,19 @@ int send_pack(struct send_pack_args *args,
>  
>  	if (need_pack_data && cmds_sent) {
>  		if (pack_objects(out, remote_refs, extra_have, args) < 0) {
> -			for (ref = remote_refs; ref; ref = ref->next)
> -				ref->status = REF_STATUS_NONE;
>  			if (args->stateless_rpc)
>  				close(out);
>  			if (git_connection_is_socket(conn))
>  				shutdown(fd[0], SHUT_WR);
>  
>  			/*
>  			 * Do not even bother with the return value; we know we
> -			 * are failing, and just want the error() side effects.
> +			 * are failing, and just want the error() side effects,
> +			 * as well as marking refs with the remote status (if
> +			 * we get one).
>  			 */
>  			if (status_report)
> -				receive_unpack_status(&reader);
> +				receive_status(&reader, remote_refs);
>  
>  			if (use_sideband) {
>  				close(demux.out);
>
> I was worried at first that we might make things worse for the case that
> the network has hung up completely (which would cause pack-objects to
> fail, but also cause us to not get anything from the remote). But this
> is really no worse. Even in the existing code, we'd complain to stderr
> about trying to read the unpack status. And then when we read the remote
> ref status, as soon as we see a bad packet we just quietly stop reading
> (thus leaving any unmentioned refs as EXPECTING_REPORT).
>
> So with that second patch above, the test failure goes away for me.

Nicely analyzed and patched.


  parent reply	other threads:[~2019-11-13  3:48 UTC|newest]

Thread overview: 9+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2019-04-23  2:45 do people find t5504.8 flaky? Junio C Hamano
2019-04-23  3:02 ` Jeff King
2019-11-13  0:07   ` SZEDER Gábor
2019-11-13  1:03     ` Jeff King
2019-11-13  2:07       ` Jeff King
2019-11-18 22:30         ` SZEDER Gábor
2019-11-18 23:25           ` Randall S. Becker
2019-11-13  3:47       ` Junio C Hamano [this message]
2019-04-29 13:36 ` Johannes Schindelin

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