From: "SZEDER Gábor" <szeder.dev@gmail.com>
To: Jeff King <peff@peff.net>
Cc: Derrick Stolee <stolee@gmail.com>,
Derrick Stolee via GitGitGadget <gitgitgadget@gmail.com>,
git@vger.kernel.org, Junio C Hamano <gitster@pobox.com>,
Derrick Stolee <dstolee@microsoft.com>
Subject: Re: [PATCH 1/1] upload-pack: fix race condition in error messages
Date: Thu, 29 Aug 2019 23:58:18 +0200 [thread overview]
Message-ID: <20190829215818.GG8571@szeder.dev> (raw)
In-Reply-To: <20190829143805.GB1746@sigill.intra.peff.net>
On Thu, Aug 29, 2019 at 10:38:05AM -0400, Jeff King wrote:
> So any fixes there have to happen on the client side. I am still
> confused about why the client is writing in this case, per the argument
> in 014ade7484 (upload-pack: send ERR packet for non-tip objects,
> 2019-04-13). It would be nice to use GIT_TRACE_PACKET to see what it's
> trying to write, but I still haven't been able to reproduce the issue.
It's the "done" line:
+ cat trace-packet
packet: upload-pack> 5e26403b4485d7a44fd8b65dc3f71e21c0dd6fad HEAD\0multi_ack thin-pack side-band side-band-64k ofs-delta shallow deepen-since deepen-not deepen-relative no-progress include-tag multi_ack_detailed allow-tip-sha1-in-want allow-reachable-sha1-in-want symref=HEAD:refs/heads/master agent=git/2.23.0.40.g4d780d4382.dirty
packet: upload-pack> 5e26403b4485d7a44fd8b65dc3f71e21c0dd6fad refs/heads/master
packet: upload-pack> 0000
packet: fetch< 5e26403b4485d7a44fd8b65dc3f71e21c0dd6fad HEAD\0multi_ack thin-pack side-band side-band-64k ofs-delta shallow deepen-since deepen-not deepen-relative no-progress include-tag multi_ack_detailed allow-tip-sha1-in-want allow-reachable-sha1-in-want symref=HEAD:refs/heads/master agent=git/2.23.0.40.g4d780d4382.dirty
packet: fetch< 5e26403b4485d7a44fd8b65dc3f71e21c0dd6fad refs/heads/master
packet: fetch< 0000
packet: fetch> want 64ea4c133d59fa98e86a771eda009872d6ab2886 multi_ack_detailed side-band-64k thin-pack no-progress ofs-delta deepen-since deepen-not agent=git/2.23.0.40.g4d780d4382.dirty
packet: fetch> 0000
packet: upload-pack< want 64ea4c133d59fa98e86a771eda009872d6ab2886 multi_ack_detailed side-band-64k thin-pack no-progress ofs-delta deepen-since deepen-not agent=git/2.23.0.40.g4d780d4382.dirty
packet: upload-pack< 0000
packet: upload-pack> ERR upload-pack: not our ref 64ea4c133d59fa98e86a771eda009872d6ab2886
packet: upload-pack> 0000
packet: fetch> done
In the avarage successful run that "fetch> done" pkt-line is
immediately after the "fetch> 0000".
The above is on my Linux box; here is a failure on macOS, essentially
the same:
https://travis-ci.org/szeder/git/jobs/578555606#L3453
next prev parent reply other threads:[~2019-08-29 21:58 UTC|newest]
Thread overview: 15+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-08-28 1:43 [PATCH 0/1] upload-pack: fix race condition in t5516 Derrick Stolee via GitGitGadget
2019-08-28 1:43 ` [PATCH 1/1] upload-pack: fix race condition in error messages Derrick Stolee via GitGitGadget
2019-08-28 9:34 ` SZEDER Gábor
2019-08-28 14:54 ` Jeff King
2019-08-28 15:39 ` Jeff King
2019-08-28 16:15 ` SZEDER Gábor
2019-08-29 12:58 ` Derrick Stolee
2019-08-29 14:13 ` Jeff King
2019-08-29 14:27 ` Derrick Stolee
2019-08-29 14:38 ` Jeff King
2019-08-29 21:58 ` SZEDER Gábor [this message]
2019-08-29 22:06 ` SZEDER Gábor
2019-08-30 12:10 ` SZEDER Gábor
2019-09-04 5:04 ` Jeff King
2019-09-10 12:08 ` SZEDER Gábor
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=20190829215818.GG8571@szeder.dev \
--to=szeder.dev@gmail.com \
--cc=dstolee@microsoft.com \
--cc=git@vger.kernel.org \
--cc=gitgitgadget@gmail.com \
--cc=gitster@pobox.com \
--cc=peff@peff.net \
--cc=stolee@gmail.com \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is an external index of several public inboxes,
see mirroring instructions on how to clone and mirror
all data and code used by this external index.