From: "Rafael J. Wysocki" <rjw@sisk.pl>
To: Jens Axboe <jens.axboe@oracle.com>
Subject: Re: [PATCH] Fix congestion_wait() sync/async vs read/write confusion
Date: Wed, 8 Jul 2009 21:15:21 +0200
User-Agent: KMail/1.11.2 (Linux/2.6.31-rc2-rjw; KDE/4.2.4; x86_64; ; )
Cc: linux-kernel@vger.kernel.org, chris.mason@oracle.com
References: <20090708184703.GW23611@kernel.dk>
In-Reply-To: <20090708184703.GW23611@kernel.dk>
MIME-Version: 1.0
Content-Type: Text/Plain;
  charset="iso-8859-1"
Content-Transfer-Encoding: 7bit
Content-Disposition: inline
Message-Id: <200907082115.22104.rjw@sisk.pl>
Sender: linux-kernel-owner@vger.kernel.org
Content-Length: 1096
Lines: 27

On Wednesday 08 July 2009, Jens Axboe wrote:
> Hi,
> 
> This one isn't great, we currently have broken congestion wait logic in
> the kernel. 2.6.30 is impacted as well, so this patch should go to
> stable too once it's in -git. I'll let this one simmer until tomorrow,
> then ask Linus to pull it. The offending commit breaking this is
> 1faa16d22877f4839bd433547d770c676d1d964c.
> 
> Meanwhile, it could potentially cause buffered writeout slowdowns in the
> kernel. Perhaps the 2.6.30 regression in that area is caused by this?
> Would be interesting if the submitter could test. I can't find the list,
> CC'ing Rafael.

Thanks, but I'm not sure which one do you mean in particular.
http://bugzilla.kernel.org/show_bug.cgi?id=13408 looks like it might be
somewhat related.

The complete list is at http://lkml.org/lkml/2009/7/6/383 .

Best,
Rafael
--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@vger.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/