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Message-Id: <1253530608.5216.17.camel@penberg-laptop>
Date: Mon, 21 Sep 2009 13:56:48 +0300
From: Pekka Enberg <penberg@...helsinki.fi>
To: Bartlomiej Zolnierkiewicz <bzolnier@...il.com>
Cc: Mel Gorman <mel@....ul.ie>, "Luis R. Rodriguez" <mcgrof@...il.com>,
Tso Ted <tytso@....edu>,
"Aneesh Kumar K.V" <aneesh.kumar@...ux.vnet.ibm.com>,
Zhu Yi <yi.zhu@...el.com>,
Andrew Morton <akpm@...ux-foundation.org>,
Johannes Weiner <hannes@...xchg.org>,
"Rafael J. Wysocki" <rjw@...k.pl>,
Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
Kernel Testers List <kernel-testers@...r.kernel.org>,
Mel Gorman <mel@...net.ie>,
"netdev@...r.kernel.org" <netdev@...r.kernel.org>,
"linux-mm@...ck.org" <linux-mm@...ck.org>,
James Ketrenos <jketreno@...ux.intel.com>,
"Chatre, Reinette" <reinette.chatre@...el.com>,
"linux-wireless@...r.kernel.org" <linux-wireless@...r.kernel.org>,
"ipw2100-devel@...ts.sourceforge.net"
<ipw2100-devel@...ts.sourceforge.net>
Subject: Re: ipw2200: firmware DMA loading rework
On Mon, 2009-09-21 at 12:46 +0200, Bartlomiej Zolnierkiewicz wrote:
> > > I don't know why people don't see it but for me it has a memory management
> > > regression and reliability issue written all over it.
> >
> > Possibly but drivers that reload their firmware as a response to an
> > error condition is relatively new and loading network drivers while the
> > system is already up and running a long time does not strike me as
> > typical system behaviour.
>
> Loading drivers after boot is a typical desktop/laptop behavior, please
> think about hotplug (the hardware in question is an USB dongle).
Yeah, I wonder what broke things. Did the wireless stack change in
2.6.31-rc1 too? IIRC Mel ruled out page allocator changes as a suspect.
Pekka
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