From: "Gerhard Pircher" <gerhard_pircher@gmx•net>
To: "Franca, Jose (NSN - PT/Portugal - MiniMD)" <jose.franca@nsn•com>,
scottwood@freescale•com
Cc: linuxppc-dev@ozlabs•org, linuxppc-embedded@ozlabs•org
Subject: Re: RE: FW: SKB corruption on heavy traffic
Date: Wed, 30 Apr 2008 21:20:42 +0200 [thread overview]
Message-ID: <20080430192042.76910@gmx.net> (raw)
In-Reply-To: <56DEE2D3217CD946B290399093C8FA7C212F55@PTLIEXC001.nsn-intra.net>
-------- Original-Nachricht --------
> Datum: Wed, 30 Apr 2008 14:03:02 +0100
> Von: "Franca, Jose (NSN - PT/Portugal - MiniMD)" <jose.franca@nsn•com>
> An: "ext Gerhard Pircher" <gerhard_pircher@gmx•net>, "Scott Wood" <scottwood@freescale•com>
> CC: linuxppc-embedded@ozlabs•org, linuxppc-dev@ozlabs•org
> Betreff: RE: FW: SKB corruption on heavy traffic
> Hi!
>
> There was a sugestion to change slab to slub alocation method... I > don't know quite well yet what is necessary to do this, but it seems that
> the current implementation of slub is more commonly available on 2.6
> kernels, not in 2.4 that I use :(...
> Any guesses or hints on this?
I'm using SLUB with kernel v2.6.25 and I still get data corruption on high
load. On the other side it is a good idea to enable SLAB debugging, as
Scott suggested. Maybe that sheds some light on this issue (even if most
of the network drivers make use of DMA).
regards,
Gerhard
>
> Regards!
> Filipe.
>
> -----Original Message-----
> From: ext Gerhard Pircher [mailto:gerhard_pircher@gmx•net]
> Sent: quarta-feira, 30 de Abril de 2008 13:26
> To: Franca, Jose (NSN - PT/Portugal - MiniMD); Scott Wood
> Cc: linuxppc-embedded@ozlabs•org; linuxppc-dev@ozlabs•org
> Subject: Re: FW: SKB corruption on heavy traffic
>
> Hi,
>
> I think I have the same problem here with all versions of the 2.6.x
> kernel series (tested with kernel v2.6.8/14/16/18/25 on a PPC7455 machine
> with different PCI network cards by transferring a big file over
> NFS/SCP). Data corruption occurs under high load, but I don't get any
> kernel oops.
>
> regards,
>
> Gerhard
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next prev parent reply other threads:[~2008-04-30 19:20 UTC|newest]
Thread overview: 7+ messages / expand[flat|nested] mbox.gz Atom feed top
2008-04-30 9:07 FW: SKB corruption on heavy traffic Franca, Jose (NSN - PT/Portugal - MiniMD)
2008-04-30 12:25 ` Gerhard Pircher
2008-04-30 13:03 ` Franca, Jose (NSN - PT/Portugal - MiniMD)
2008-04-30 19:20 ` Gerhard Pircher [this message]
2008-05-01 20:55 ` Myron.Dixon
2008-05-03 14:07 ` Matvejchikov Ilya
2008-05-05 8:54 ` Franca, Jose (NSN - PT/Portugal - MiniMD)
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