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From: "Martin Ågren" <martin.agren@gmail.com>
To: Jeff King <peff@peff.net>
Cc: Git Mailing List <git@vger.kernel.org>
Subject: Re: [PATCH v2 0/6] reroll ma/plugleaks; more `object_array`-fixes
Date: Sun, 24 Sep 2017 21:59:28 +0200	[thread overview]
Message-ID: <CAN0heSqQ3Etj1mkGhuft8JzKA8SNhpF0jcnVEdFeKX5NHpyqTw@mail.gmail.com> (raw)
In-Reply-To: <20170923163817.7ltmkav2ytk7n43k@sigill.intra.peff.net>

On 23 September 2017 at 18:38, Jeff King <peff@peff.net> wrote:
> On Sat, Sep 23, 2017 at 12:13:16PM -0400, Jeff King wrote:
>
>> In theory you should be able to just add "log_path=/tmp/lsan/output" to
>> that, which should put all the logs in a convenient place (and stop the
>> extra output from confusing any tests which capture stderr). But I can't
>> seem to get log_path to do anything, contrary to the documentation.
>>
>> Doing log_to_syslog=1 does work for me. I'm not sure if it's a bug or
>> I'm holding it wrong. But it does seem like it should be possible to do
>> what you want.
>
> Hrm. log_path doesn't seem to work for me directly from LSAN_OPTIONS.
> But if you compile with ASan, it _does_ work from there. That seems like
> a bug from my reading of the documentation, but maybe I'm missing
> something.
>
> Anyway, doing:
>
>   ASAN_OPTIONS=detect_leaks=1:abort_on_error=0:exitcode=0:log_path=/tmp/lsan/output \
>   make SANITIZE=address,leak test
>
> should pass the whole suite and give you a host of files to analyze.

Thanks. My reading of the documentation was off. Turns out exitcode=0
does not set the exit code to 0, but rather turns it off. Duh. It also
didn't help that I tested with (my) gcc, which seems to have some
issues. With clang, things work fine. Thanks for looking into this.

> I'm not sure of the best way to count things.

Right. It's a tricky problem. And in the end, all we find out is where
we allocate and how we got there. Exactly where we lose/leak that piece
of allocated memory is another question...

  reply	other threads:[~2017-09-24 19:59 UTC|newest]

Thread overview: 27+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2017-09-20 19:47 [PATCH] diff-lib: clear `pending` object-array in `index_differs_from()` Martin Ågren
2017-09-20 20:02 ` Jeff King
2017-09-21  3:56   ` Martin Ågren
2017-09-21  4:52     ` Jeff King
2017-09-22 23:34   ` [PATCH v2 0/6] reroll ma/plugleaks; more `object_array`-fixes Martin Ågren
2017-09-22 23:34     ` [PATCH v2 1/6] builtin/commit: fix memory leak in `prepare_index()` Martin Ågren
2017-09-22 23:34     ` [PATCH v2 2/6] commit: fix memory leak in `reduce_heads()` Martin Ågren
2017-09-22 23:34     ` [PATCH v2 3/6] leak_pending: use `object_array_clear()`, not `free()` Martin Ågren
2017-09-23  3:47       ` Jeff King
2017-09-22 23:34     ` [PATCH v2 4/6] object_array: " Martin Ågren
2017-09-23  4:04       ` Jeff King
2017-09-23  9:41         ` Martin Ågren
2017-09-22 23:34     ` [PATCH v2 5/6] object_array: add and use `object_array_pop()` Martin Ågren
2017-09-23  4:27       ` Jeff King
2017-09-23  9:49         ` Martin Ågren
2017-09-23 15:47           ` Jeff King
2017-09-22 23:34     ` [PATCH v2 6/6] pack-bitmap[-write]: use `object_array_clear()`, don't leak Martin Ågren
2017-09-23  4:35       ` Jeff King
2017-09-23  4:37     ` [PATCH v2 0/6] reroll ma/plugleaks; more `object_array`-fixes Jeff King
2017-09-23  9:54       ` Martin Ågren
2017-09-23 16:13         ` Jeff King
2017-09-23 16:38           ` Jeff King
2017-09-24 19:59             ` Martin Ågren [this message]
2017-09-25 16:08               ` Jeff King
2017-10-01 15:04                 ` Martin Ågren
2017-09-24  7:01     ` Junio C Hamano
2017-09-24 20:00       ` Martin Ågren

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