From: Andrew Morton <akpm@osdl.org>
To: IWAMOTO Toshihiro <iwamoto@valinux.co.jp>
Cc: linux-kernel@vger.kernel.org
Subject: Re: O_DIRECT leaks memory on linux-2.6.0-test9
Date: Thu, 20 Nov 2003 23:17:49 -0800 [thread overview]
Message-ID: <20031120231749.7cc3f245.akpm@osdl.org> (raw)
In-Reply-To: <20031121061806.6A65F7007C@sv1.valinux.co.jp>
IWAMOTO Toshihiro <iwamoto@valinux.co.jp> wrote:
>
> recently I noticed that direct IO causes memory leaks with
> linux-2.6.0-test9.
> The program that causes memory leaks is "fsstress", which is
> testcases/kernel/fs/fsstress in ltp-full-20031106.tgz (ftp from
> http://sourceforge.net/projects/ltp/).
>
> fsstress does various file operations, and I found that the problem is
> with the combination of write and dread (O_DIRECT read).
> You should be able to reproduce the bug with the following command
> line.
>
> $ while true; do ./fsstress -c -d /usr/src/test -z -f write=1 \
> -f dread=1 -f creat=1 -S -n 1000 -p 32; done
It seems OK here. Please take a copy of /proc/meminfo and /proc/slabinfo.
next prev parent reply other threads:[~2003-11-21 7:12 UTC|newest]
Thread overview: 10+ messages / expand[flat|nested] mbox.gz Atom feed top
2003-11-21 6:18 IWAMOTO Toshihiro
2003-11-21 7:17 ` Andrew Morton [this message]
2003-11-21 7:34 ` IWAMOTO Toshihiro
2003-11-21 7:55 ` Andrew Morton
2003-11-21 8:24 ` Gene Heskett
2003-11-21 8:40 ` Andrew Morton
2003-11-21 14:02 ` Gene Heskett
2003-11-21 14:25 ` Gene Heskett
2003-11-21 14:48 ` Gene Heskett
2003-12-13 15:13 ` Oops on module insertion of 3c509/3c95x Alexander Nyberg
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