From: "Michael Chan" <mchan@broadcom.com>
To: "David Miller" <davem@davemloft.net>, mcarlson@broadcom.com
Cc: kosaki.motohiro@jp.fujitsu.com, akpm@linux-foundation.org,
csnook@redhat.com, davej@codemonkey.org.uk,
nickpiggin@yahoo.com.au, linux-kernel@vger.kernel.org,
netdev <netdev@vger.kernel.org>
Subject: Re: GFP_ATOMIC page allocation failures.
Date: Wed, 02 Apr 2008 12:12:06 -0800 [thread overview]
Message-ID: <1207167128.5311.5.camel@dell> (raw)
In-Reply-To: <20080402.114441.78726196.davem@davemloft.net>
On Wed, 2008-04-02 at 11:44 -0700, David Miller wrote:
> From: KOSAKI Motohiro <kosaki.motohiro@jp.fujitsu.com>
> Date: Wed, 02 Apr 2008 19:56:05 +0900
>
> > BTW:
> > other person's tg3 allocation failure bug report.
> >
> > http://bugzilla.kernel.org/show_bug.cgi?id=9771
>
> Yes, I know about it. It will occur for any device
> which must use linear RX buffers and supports
> >PAGE_SIZE MTUs.
>
> But modern chips are going to support segmentation of
> receive packets into multiple individual pages and
> therefore not have this order>0 page allocation
> requirement.
tg3 hardware has a jumbo rx ring that can accommodate non-linear SKBs.
Matt is working on some patches to add this feature.
next prev parent reply other threads:[~2008-04-02 19:24 UTC|newest]
Thread overview: 38+ messages / expand[flat|nested] mbox.gz Atom feed top
2008-04-01 23:56 GFP_ATOMIC page allocation failures Dave Jones
2008-04-02 1:28 ` Nick Piggin
2008-04-02 1:35 ` Dave Jones
2008-04-02 6:28 ` Chris Snook
2008-04-02 7:56 ` Andrew Morton
2008-04-02 8:17 ` KOSAKI Motohiro
2008-04-02 8:24 ` David Miller
2008-04-02 8:43 ` Andrew Morton
2008-04-02 10:00 ` KOSAKI Motohiro
2008-04-02 10:56 ` KOSAKI Motohiro
2008-04-02 18:44 ` David Miller
2008-04-02 20:12 ` Michael Chan [this message]
2008-04-02 20:53 ` David Miller
2008-04-02 11:04 ` Peter Zijlstra
2008-04-02 18:45 ` David Miller
2008-04-02 19:06 ` Jeff Garzik
2008-04-02 9:12 ` Nick Piggin
2008-04-02 15:54 ` Andrew Morton
2008-04-03 5:22 ` Nick Piggin
2008-04-03 5:32 ` Andrew Morton
2008-04-03 8:59 ` Evgeniy Polyakov
2008-06-26 21:06 ` Dave Jones
2008-06-26 22:26 ` Chris Snook
2008-06-26 22:26 ` Chris Snook
2008-06-27 10:01 ` Evgeniy Polyakov
2008-06-27 10:01 ` Evgeniy Polyakov
2008-04-02 17:21 ` Jeff Garzik
2008-04-02 17:33 ` Andrew Morton
2008-04-02 18:18 ` Jeff Garzik
2008-04-02 18:37 ` Kok, Auke
2008-04-03 5:57 ` Nick Piggin
2008-04-03 18:20 ` Jeff Garzik
[not found] <adYyJ-20N-11@gated-at.bofh.it>
[not found] ` <aef6w-6rx-45@gated-at.bofh.it>
[not found] ` <aefJ9-7KR-15@gated-at.bofh.it>
[not found] ` <aeqF6-45P-29@gated-at.bofh.it>
2008-04-04 9:52 ` Bodo Eggert
2008-04-04 9:52 ` Bodo Eggert
2008-04-04 10:59 ` Nick Piggin
2008-04-04 11:35 ` Bodo Eggert
2008-04-05 1:06 ` Nick Piggin
2008-04-06 12:12 ` Bodo Eggert
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