From: "Jeffrey W. Baker" <jwbaker@acm.org>
To: "Mudama, Eric" <eric_mudama@maxtor.com>, linux-kernel@vger.kernel.org
Subject: RE: HD DMA disabled in 2.4.21-rc2, works fine in 2.4.20
Date: 19 May 2003 13:04:06 -0700 [thread overview]
Message-ID: <1053374646.10240.5.camel@heat> (raw)
In-Reply-To: <785F348679A4D5119A0C009027DE33C102E0D3AB@mcoexc04.mlm.maxtor.com>
On Mon, 2003-05-19 at 12:56, Mudama, Eric wrote:
> # CONFIG_BLK_DEV_IDEDMA_FORCED is not set
>
> I think that is the offending line?
>
> can you enable DMA transfer modes on the drive using hdparm?
Why should force be enabled? Forced sounds like a last resort. If you
read this thread you will see that hdparm isn't working. It returns
EPERM.
I was using Via IDE chipset and, yes, I had configured the kernel for
VIA support. That's why it worked in 2.4.20. But it stopped working in
2.4.21-rc.
Meanwhile, I have switched to 2.4.21-rc-ac, and dumped the hardware in
favor of Intel i865, and DMA is working again.
-jwb
next prev parent reply other threads:[~2003-05-19 19:51 UTC|newest]
Thread overview: 13+ messages / expand[flat|nested] mbox.gz Atom feed top
2003-05-19 19:56 HD DMA disabled in 2.4.21-rc2, works fine in 2.4.20 Mudama, Eric
2003-05-19 20:04 ` Jeffrey W. Baker [this message]
2003-05-19 19:45 ` Alan Cox
2003-05-19 22:29 ` Tomas Szepe
2003-05-19 23:00 ` Jeffrey W. Baker
2003-05-20 1:25 ` lars hofhansl
-- strict thread matches above, loose matches on Subject: below --
2003-05-24 2:45 Lars
2003-05-22 7:06 Lars
2003-05-19 23:12 Mudama, Eric
2003-05-17 3:56 Jeffrey Baker
2003-05-18 7:59 ` Tomas Szepe
2003-05-19 3:03 ` Lars
2003-05-15 7:56 Lars
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