From: Sergei Shtylyov <sshtylyov@ru.mvista.com>
To: Alan Cox <alan@lxorguk.ukuu.org.uk>
Cc: Russell King <rmk+lkml@arm.linux.org.uk>,
linux-ide@vger.kernel.org, linux-kernel@vger.kernel.org
Subject: Re: 2.6.15-rc1: IDE: fix potential data corruption with SL82C105 interfaces
Date: Mon, 15 May 2006 18:32:16 +0400 [thread overview]
Message-ID: <446890F0.3020408@ru.mvista.com> (raw)
In-Reply-To: <1131818615.18258.6.camel@localhost.localdomain>
Hello.
Alan Cox wrote:
> On Sad, 2005-11-12 at 16:55 +0000, Russell King wrote:
>
>>We must _never_ _ever_ on pain of death enable IDE DMA on SL82C105
>>chipsets where the southbridge revision is <= 5, otherwise data
>>corruption will occur.
> If you are fixing this driver also set ->serialize = 1; before someone
> with dual channel device gets burned.
Heh, this driver also tries to cache the single PCI register per-channel
like hpt366.c... This buglet concerns using fast PIO timings and is probably
harmless though but needs to be fixed -- I'll send a patch soon...
I wonder what is otherwise wrong with using 2 channels concurrently?
MBR, Sergei
next prev parent reply other threads:[~2006-05-15 14:33 UTC|newest]
Thread overview: 9+ messages / expand[flat|nested] mbox.gz Atom feed top
2005-11-12 16:55 2.6.15-rc1: IDE: fix potential data corruption with SL82C105 interfaces Russell King
2005-11-12 18:03 ` Alan Cox
2005-11-12 17:46 ` Russell King
2006-05-15 14:32 ` Sergei Shtylyov [this message]
2006-05-15 15:25 ` Alan Cox
2006-05-15 16:05 ` Sergei Shtylyov
2006-05-15 16:35 ` Alan Cox
2006-05-15 17:10 ` Russell King
2005-11-15 13:27 ` Bartlomiej Zolnierkiewicz
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