From: jamal <hadi@cyberus.ca>
To: Jens Axboe <jens.axboe@oracle.com>
Cc: netdev@vger.kernel.org
Subject: Re: [PATCH][RFC] network splice receive
Date: Tue, 05 Jun 2007 08:34:54 -0400 [thread overview]
Message-ID: <1181046894.5896.5.camel@localhost> (raw)
In-Reply-To: <20070605122031.GE9909@kernel.dk>
On Tue, 2007-05-06 at 14:20 +0200, Jens Axboe wrote:
> >
> > 0000 1800 4ff3 937f e000 6381 7275 0008
> >
> > Perhaps that hex pattern rings a bell with someone intimate with the
> > networking. The remaining wrong bytes don't seem to have anything in
> > common.
>
> Ok, the source mac address is 00:18:F3:4F:7F:93 and the destination is
> 00:E0:81:63:75:72 which are the middle 12 bytes of the 16.
>
It appears you may have endianness issues and perhaps a 16 bit
mis-offset. the 0008 at the end looks like a swapped 0x800 which
is the ethernet type for IPV4.
> Hope that helps someone clue me in as to which network part is reusing
> the data. Do I need to 'pin' the sk_buff until the pipe data has been
> consumed?
I would worry about the driver level first - likely thats where your
corruption is.
cheers,
jamal
next prev parent reply other threads:[~2007-06-05 12:34 UTC|newest]
Thread overview: 30+ messages / expand[flat|nested] mbox.gz Atom feed top
2007-06-05 8:05 [PATCH][RFC] network splice receive Jens Axboe
2007-06-05 11:45 ` Jens Axboe
2007-06-05 12:20 ` Jens Axboe
2007-06-05 12:34 ` jamal [this message]
2007-06-06 7:14 ` Jens Axboe
2007-06-05 13:34 ` Evgeniy Polyakov
2007-06-05 14:31 ` Evgeniy Polyakov
2007-06-05 14:49 ` Evgeniy Polyakov
2007-06-06 7:17 ` Jens Axboe
2007-06-07 8:09 ` Evgeniy Polyakov
2007-06-07 10:51 ` Jens Axboe
2007-06-07 14:58 ` Evgeniy Polyakov
2007-06-08 7:48 ` Jens Axboe
2007-06-08 8:06 ` David Miller
2007-06-08 8:38 ` Jens Axboe
2007-06-08 8:56 ` Evgeniy Polyakov
2007-06-08 9:04 ` Jens Axboe
2007-06-08 13:58 ` Evgeniy Polyakov
2007-06-08 14:14 ` Jens Axboe
2007-06-08 14:57 ` Evgeniy Polyakov
2007-06-08 15:19 ` Jens Axboe
2007-06-08 15:30 ` Evgeniy Polyakov
2007-06-09 6:36 ` Jens Axboe
2007-06-12 11:29 ` Evgeniy Polyakov
2007-06-12 11:33 ` Jens Axboe
2007-06-12 12:35 ` Evgeniy Polyakov
2007-06-12 12:40 ` Jens Axboe
2007-06-12 13:11 ` Evgeniy Polyakov
2007-06-12 13:11 ` Jens Axboe
2007-06-11 8:00 ` Jens Axboe
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