From: Dan Aloni <da-x@monatomic.org>
To: Francois Romieu <romieu@fr.zoreil.com>
Cc: Linux Kernel List <linux-kernel@vger.kernel.org>,
netdev@vger.kernel.org, Nick Piggin <nickpiggin@yahoo.com.au>
Subject: Re: workaround large MTU and N-order allocation failures
Date: Mon, 19 Sep 2005 10:13:58 +0300 [thread overview]
Message-ID: <20050919071358.GA7107@localdomain> (raw)
In-Reply-To: <20050918230822.GA5440@electric-eye.fr.zoreil.com>
On Mon, Sep 19, 2005 at 01:08:22AM +0200, Francois Romieu wrote:
> Dan Aloni <da-x@monatomic.org> :
> [...]
> > The problem with large MTU is external memory fragmentation in
> > the buddy system following high workload, causing alloc_skb() to
> > fail.
>
> If the issue hits the Rx path, it is probably the responsibility of
> the device driver. Which kind of hardware do you use ?
We are using a SuperMicro board and the network driver is e1000. The
revision of the chipset is 82546GB-copper (maps to e1000_82546_rev_3).
This particular chipset does not support packet splitting, so we
are looking for a hack on the skb layer.
--
Dan Aloni
da-x@monatomic.org, da-x@colinux.org, da-x@gmx.net
next prev parent reply other threads:[~2005-09-19 7:13 UTC|newest]
Thread overview: 8+ messages / expand[flat|nested] mbox.gz Atom feed top
2005-09-18 14:35 workaround large MTU and N-order allocation failures Dan Aloni
2005-09-18 23:08 ` Francois Romieu
2005-09-19 7:13 ` Dan Aloni [this message]
2005-09-19 17:25 ` Ganesh Venkatesan
2005-09-20 14:25 ` Dan Aloni
2005-09-19 6:31 ` Nick Piggin
2005-09-19 13:38 ` Al Boldi
2005-09-20 14:34 ` Dan Aloni
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