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From: Jeff King <peff@peff.net>
To: Lars Schneider <larsxschneider@gmail.com>
Cc: Martin Ågren <martin.agren@gmail.com>, Git Users <git@vger.kernel.org>
Subject: Re: [PATCH] pkt-line: re-'static'-ify buffer in packet_write_fmt_1()
Date: Sun, 27 Aug 2017 19:23:39 -0400
Message-ID: <20170827232338.hm5t7t7c2xaa3zyl@sigill.intra.peff.net> (raw)
In-Reply-To: <179AC8FB-5991-4200-9AAC-2F8D0914D5F9@gmail.com>

On Sun, Aug 27, 2017 at 10:04:55PM +0200, Lars Schneider wrote:

> I did run all tests under valgrind using "make valgrind" and I found
> the following files with potential issues:
> 
> cat valgrind.out | perl -nE 'say /^==.+\((.+)\:.+\)$/' | sort | uniq -c
> 7102
>    2 clone.c
>   33 common-main.c
>    6 connect.c
>   64 git.c
>    4 ls-remote.c
>  126 run-command.c
>   12 transport.c
>    7 worktree.c

I'm not sure where valgrind.out comes from. The individual
test-results/*.out files may have valgrind output, but I don't think
they usually contain leak output.

Doing "valgrind ./git-upload-pack . </dev/null >/dev/null" mentions
leaked memory but not the locations. Adding --leak-check=full shows that
most of it comes from format_packet().

And applying Martin's patch drops the "definitely lost" category down to
0 bytes (there's still 550k in "still reachable", but those are in the
"exit will free them for us" category).

> No mention of "pkt-line.c". Did you run Git with valgrind on one of 
> your repositories to find it?

I'm curious, too. I don't think the valgrind setup in our test suite is
great for finding leaks right now.

-Peff

  reply index

Thread overview: 41+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2017-08-27  7:37 Martin Ågren
2017-08-27 15:41 ` Jeff King
2017-08-27 18:25   ` Jeff King
2017-08-27 18:21 ` Lars Schneider
2017-08-27 19:09   ` Martin Ågren
2017-08-27 19:15     ` Jeff King
2017-08-27 20:04     ` Lars Schneider
2017-08-27 23:23       ` Jeff King [this message]
2017-08-28  4:11         ` Martin Ågren
2017-08-28 17:52           ` Stefan Beller
2017-08-28 17:58             ` Jeff King
2017-09-05 10:03               ` Junio C Hamano
2017-08-29 17:51           ` Lars Schneider
2017-08-29 18:53             ` Jeff King
2017-08-29 18:58               ` [PATCH] config: use a static lock_file struct Jeff King
2017-08-29 19:09                 ` Brandon Williams
2017-08-29 19:10                   ` Brandon Williams
2017-08-29 19:12                   ` Jeff King
2017-08-30  3:25                     ` Michael Haggerty
2017-08-30  4:31                       ` Jeff King
2017-08-30  4:55                         ` Michael Haggerty
2017-08-30  4:55                         ` Jeff King
2017-08-30  5:55                           ` Jeff King
2017-08-30  7:07                             ` Michael Haggerty
2017-09-02  8:44                               ` Jeff King
2017-09-02 13:50                                 ` Jeff King
2017-08-30  6:55                           ` Michael Haggerty
2017-08-30 19:53                             ` Jeff King
2017-08-30 19:57                               ` Brandon Williams
2017-08-30 20:11                                 ` Jeff King
2017-08-30 21:06                                   ` Brandon Williams
2017-08-31  4:09                                     ` Jeff King
2017-09-06  3:59                 ` Junio C Hamano
2017-09-06 12:41                   ` Jeff King
2017-08-29 19:22               ` [PATCH] pkt-line: re-'static'-ify buffer in packet_write_fmt_1() Martin Ågren
2017-08-29 21:48                 ` Jeff King
2017-08-30  5:31                   ` Jeff King
2017-09-05 10:03                     ` Junio C Hamano
2017-10-10  4:06                       ` [PATCH 0/2] Do not call cmd_*() as a subroutine Junio C Hamano
2017-10-10  4:06                         ` [PATCH 1/2] describe: do not use " Junio C Hamano
2017-10-10  4:06                         ` [PATCH 2/2] merge-ours: " Junio C Hamano

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