From: Jens Axboe <axboe@suse.de>
To: Andrew Morton <akpm@osdl.org>
Cc: alexn@dsv.su.se, kas@fi.muni.cz, linux-kernel@vger.kernel.org,
lennert.vanalboom@ugent.be, Linus Torvalds <torvalds@osdl.org>
Subject: Re: Memory leak in 2.6.11-rc1?
Date: Mon, 24 Jan 2005 22:05:39 +0100 [thread overview]
Message-ID: <20050124210538.GD19242@suse.de> (raw)
In-Reply-To: <20050124125649.35f3dafd.akpm@osdl.org>
On Mon, Jan 24 2005, Andrew Morton wrote:
> Jens Axboe <axboe@suse.de> wrote:
> >
> > Here is the output of your program (somewhat modified, I cut the runtime
> > by 19/20 killing the 1-byte reads :-) after 10 hours of use with
> > bk-current as of this morning.
>
> hmm..
>
> 62130 times: Page allocated via order 0
> [0xffffffff80173d6e] pipe_writev+574
> [0xffffffff8017402a] pipe_write+26
> [0xffffffff80168b47] vfs_write+199
> [0xffffffff80168cb3] sys_write+83
> [0xffffffff8011e4f3] cstar_do_call+27
>
> 55552 times: Page allocated via order 0
> [0xffffffff80173d6e] pipe_writev+574
> [0xffffffff8017402a] pipe_write+26
> [0xffffffff8038b88d] thread_return+41
> [0xffffffff80168b47] vfs_write+199
> [0xffffffff80168cb3] sys_write+83
> [0xffffffff8011e4f3] cstar_do_call+27
>
> Would indicate that the new pipe code is leaking.
I suspected that, I even tried backing out the new pipe patches but it
still seemed to leak. And the test cases I tried to come up with could
not provoke a pipe leak. But yeah, it certainly is the most likely
culprit and the leak did start in the period when it was introduced.
--
Jens Axboe
next prev parent reply other threads:[~2005-01-24 21:09 UTC|newest]
Thread overview: 87+ messages / expand[flat|nested] mbox.gz Atom feed top
2005-01-21 16:19 Memory leak in 2.6.11-rc1? Jan Kasprzak
2005-01-22 2:23 ` Alexander Nyberg
2005-01-23 9:11 ` Jens Axboe
2005-01-23 9:19 ` Andrew Morton
2005-01-23 9:56 ` Jens Axboe
2005-01-23 10:32 ` Andrew Morton
2005-01-23 20:03 ` Russell King
2005-01-24 11:48 ` Russell King
2005-01-25 19:32 ` Russell King
2005-01-27 8:28 ` Russell King
2005-01-27 8:47 ` Andrew Morton
2005-01-27 10:19 ` Alessandro Suardi
2005-01-27 12:17 ` Martin Josefsson
2005-01-27 12:56 ` Robert Olsson
2005-01-27 13:03 ` Robert Olsson
2005-01-27 16:49 ` Russell King
2005-01-27 18:37 ` Phil Oester
2005-01-27 19:25 ` Russell King
2005-01-27 20:40 ` Phil Oester
2005-01-28 9:32 ` Russell King
2005-01-27 20:33 ` David S. Miller
2005-01-28 0:17 ` Russell King
2005-01-28 0:34 ` David S. Miller
2005-01-28 8:58 ` Russell King
2005-01-30 13:23 ` Russell King
2005-01-30 15:34 ` Russell King
2005-01-30 16:57 ` Phil Oester
2005-01-30 17:23 ` Patrick McHardy
2005-01-30 17:26 ` Patrick McHardy
2005-01-30 17:58 ` Patrick McHardy
2005-01-30 18:45 ` Russell King
2005-01-31 2:48 ` David S. Miller
2005-01-31 4:11 ` Herbert Xu
2005-01-31 4:45 ` YOSHIFUJI Hideaki / 吉藤英明
2005-01-31 5:00 ` Patrick McHardy
2005-01-31 5:11 ` David S. Miller
2005-01-31 5:40 ` Herbert Xu
2005-01-31 5:16 ` YOSHIFUJI Hideaki / 吉藤英明
2005-01-31 5:42 ` Yasuyuki KOZAKAI
2005-01-30 18:01 ` Russell King
2005-01-30 18:19 ` Phil Oester
2005-01-28 1:41 ` Phil Oester
2005-01-24 0:56 ` Alexander Nyberg
2005-01-24 20:47 ` Jens Axboe
2005-01-24 20:56 ` Andrew Morton
2005-01-24 21:05 ` Jens Axboe [this message]
2005-01-24 22:35 ` Linus Torvalds
2005-01-25 15:53 ` OT " Paulo Marques
2005-01-26 8:01 ` Jens Axboe
2005-01-26 8:11 ` Andrew Morton
2005-01-26 8:40 ` Jens Axboe
2005-01-26 8:44 ` Andrew Morton
2005-01-26 8:47 ` Jens Axboe
2005-01-26 8:52 ` Jens Axboe
2005-01-26 9:00 ` William Lee Irwin III
2005-01-26 8:58 ` Andrew Morton
2005-01-26 9:03 ` Jens Axboe
2005-01-26 15:52 ` Parag Warudkar
2005-02-02 9:29 ` Lennert Van Alboom
2005-02-02 16:00 ` Linus Torvalds
2005-02-02 16:19 ` Lennert Van Alboom
2005-02-02 17:49 ` Dave Hansen
2005-02-02 18:27 ` Linus Torvalds
2005-02-02 19:07 ` Dave Hansen
2005-02-02 21:08 ` Linus Torvalds
2005-01-24 22:05 ` Andrew Morton
2005-02-07 11:00 ` Jan Kasprzak
2005-02-07 11:11 ` William Lee Irwin III
2005-02-07 15:38 ` Linus Torvalds
2005-02-07 15:52 ` Jan Kasprzak
2005-02-07 16:38 ` axboe
2005-02-07 17:35 ` Jan Kasprzak
2005-02-07 21:10 ` Jan Kasprzak
2005-02-08 2:47 ` Memory leak in 2.6.11-rc1? (also here) Noel Maddy
2005-02-16 4:00 ` -rc3 leaking NOT BIO [Was: Memory leak in 2.6.11-rc1?] Parag Warudkar
2005-02-16 5:12 ` Andrew Morton
2005-02-16 6:07 ` Parag Warudkar
2005-02-16 23:52 ` Andrew Morton
2005-02-17 13:00 ` Parag Warudkar
2005-02-17 18:18 ` Linus Torvalds
2005-02-18 1:38 ` Badari Pulavarty
2005-02-21 4:57 ` Parag Warudkar
2005-02-16 23:31 ` Parag Warudkar
2005-02-16 23:51 ` Andrew Morton
2005-02-17 1:19 ` Parag Warudkar
2005-02-17 3:48 ` Horst von Brand
2005-02-17 13:35 ` Parag Warudkar
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