From: Michael Guntsche <mike@it-loops.com>
To: Eric Dumazet <eric.dumazet@gmail.com>
Cc: linux-kernel <linux-kernel@vger.kernel.org>,
netdev <netdev@vger.kernel.org>
Subject: Re: [2.6.35-rc1] page alloc failure order:1, mode:0x4020
Date: Fri, 4 Jun 2010 18:16:44 +0200 [thread overview]
Message-ID: <20100604161644.GA98048@trillian.local> (raw)
In-Reply-To: <1275656014.2482.169.camel@edumazet-laptop>
On 2010.06.04 14:53:34 , Eric Dumazet wrote:
> order-1 allocations are unfortunate, since this hardware should use
> order-0 ones if possible, and it seems it was its goal.
>
> 3872 (0xF20) comes from
<snip>
>
> 1) Maybe rx_bufsize should not include the roundup() since
> ath_rxbuf_alloc() also do an alignment adjustment ?
>
> 2) We should try to reduce skb_shared_info by four bytes.
>
> Could you try this patch ?
>
>
> We make sure rx_bufsize + various overhead <= PAGE_SIZE
> But I am not sure its legal for the hardware...
I applied the patch recompiled and run it on the routerboard, trying
to trigger the bug again.
Kind regards,
Michael
next prev parent reply other threads:[~2010-06-04 16:16 UTC|newest]
Thread overview: 12+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <20100604092025.GA96690@trillian.comsick.at>
2010-06-04 12:53 ` [2.6.35-rc1] page alloc failure order:1, mode:0x4020 Eric Dumazet
2010-06-04 16:16 ` Michael Guntsche [this message]
2010-06-06 9:56 ` Michael Guntsche
2010-06-06 10:42 ` Eric Dumazet
2010-08-25 20:25 ` Nikhil Sethi (निखिल सेठी)
2010-08-25 20:44 ` Eric Dumazet
2010-08-26 17:53 ` Nikhil Sethi (निखिल सेठी)
2010-09-05 15:57 ` Nikhil Sethi (निखिल सेठी)
[not found] ` <AANLkTi=jLwvU=EWR51Y=TQ5JYVp_DqeTx0Ocbt=NEC1-@mail.gmail.com>
2010-09-05 20:25 ` Eric Dumazet
2010-11-08 16:25 ` Nikhil Sethi (निखिल सेठी)
2010-11-08 17:10 ` Eric Dumazet
2010-11-08 17:22 ` Nikhil Sethi (निखिल सेठी)
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