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From: "Alexander V. Tikhonov" <avtikhon@tarantool.org>
To: Kirill Yukhin <kyukhin@tarantool.org>
Cc: tarantool-patches@dev.tarantool.org
Subject: Re: [Tarantool-patches] [PATCH] coio: fix cord leak on stop
Date: Wed, 23 Sep 2020 08:18:03 +0300	[thread overview]
Message-ID: <20200923051802.GA10528@hpalx> (raw)
In-Reply-To: <ecb3c3dba9338ecee6387cc4b74671a938d48389.1600786660.git.kyukhin@tarantool.org>

Hi Kirill, thanks for the patch. I've checked it and seems that the
fixed lsan susspension can be removed, please use the following patch
before commit to releases:

diff --git a/asan/lsan.supp b/asan/lsan.supp
index 46b3001e9..f1ec60da3 100644
--- a/asan/lsan.supp
+++ b/asan/lsan.supp
@@ -43,8 +43,6 @@ leak:tt_bitset_iterator_init
 leak:libc.so*
 
 # test: box-tap/schema_mt.test.lua
-# source: src/lib/core/coio_task.c
-leak:coio_on_start
 # source: src/lib/salad/mhash.h
 leak:mh_i32ptr_new
 
Also the patch LGTM.

On Tue, Sep 22, 2020 at 05:59:47PM +0300, Kirill Yukhin wrote:
> cord_ptr variable is calloc()-ated in coio_on_start()
> and is not free()-ed, which triggers ASAN. free() it
> in coio_on_stop().
> 
> Closes #5308
> ---
> 
> Branch: https://github.com/tarantool/tarantool/tree/kyukhin/gh-5308-cord-leak
> Issue: https://github.com/tarantool/tarantool/issues/5308
> ChangeLog: not user visible
> 
>  src/lib/core/coio_task.c | 1 +
>  1 file changed, 1 insertion(+)
> 
> diff --git a/src/lib/core/coio_task.c b/src/lib/core/coio_task.c
> index 83f669d..c8be2de 100644
> --- a/src/lib/core/coio_task.c
> +++ b/src/lib/core/coio_task.c
> @@ -123,6 +123,7 @@ coio_on_stop(void *data)
>  {
>  	(void) data;
>  	cord_destroy(cord());
> +	free(cord());
>  	return 0;
>  }
>  
> -- 
> 1.8.3.1
> 

  parent reply	other threads:[~2020-09-23  5:18 UTC|newest]

Thread overview: 4+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-09-22 14:59 Kirill Yukhin
2020-09-22 15:10 ` Cyrill Gorcunov
2020-09-23  5:18 ` Alexander V. Tikhonov [this message]
2020-09-23 10:58 ` Kirill Yukhin

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