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From: Alistair John Strachan <s0348365@sms.ed.ac.uk>
To: linux-kernel@vger.kernel.org
Cc: Bill Waddington <william.waddington@beezmo.com>
Subject: Re: SATA Conflict with PATA DMA
Date: Sun, 16 Apr 2006 04:48:47 +0100	[thread overview]
Message-ID: <200604160448.47225.s0348365@sms.ed.ac.uk> (raw)
In-Reply-To: <p9f2425uijetlpcq49m08cto9la898l80f@4ax.com>

On Saturday 15 April 2006 19:38, Bill Waddington wrote:
> On Sat, 15 Apr 2006 16:42:22 UTC, in fa.linux.kernel you wrote:
> >Esben Stien wrote:
> >> I'm having problems enabling DMA for my PATA HD.
> >>
> >> hdparm -d1 /dev/hdb reports:
> >> HDIO_SET_DMA failed: Operation not permitted
> >>
> >> Of course, I'm super user. Nothing is printed in dmesg.
> >>
> >> I'm on linux-2.6.16 and motherboard is Fujitsu Siemens D1561 with an
> >> ICH5. I also have a SATA hd in the computer and this only happens when
> >> the SATA hd is there. If I remove the SATA HD, then I can enable DMA
> >> for the PATA hd.
> >
> >Disabled combined mode in BIOS.
>
> If only that was possible on my fscking T43.  *sigh*

Not sure if this is universal, but if Linux doesn't claim the PATA interface, 
the SATA seems to drive optical drives on (presumably) the other channel 
(ICH7 here, on a Dell laptop with a similar BIOS limitation).

Try CONFIG_IDE=n and boot with libata.atapi_enable=1 and see what happens...

-- 
Cheers,
Alistair.

'No sense being pessimistic, it probably wouldn't work anyway.'
Third year Computer Science undergraduate.
1F2 55 South Clerk Street, Edinburgh, UK.

  reply	other threads:[~2006-04-16  3:48 UTC|newest]

Thread overview: 12+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
     [not found] <fa.m9JwGQvLBixssS4UodPQfih6Ygk@ifi.uio.no>
2006-04-15 17:02 ` Esben Stien
2006-04-15 16:41   ` Jeff Garzik
2006-04-23 17:54     ` Esben Stien
2006-04-23 18:00       ` Esben Stien
2006-06-10 20:39         ` Esben Stien
2006-06-15 17:29         ` Esben Stien
     [not found]   ` <fa.foo0W8w4UdiDztK9eBiA9awyAi8@ifi.uio.no>
2006-04-15 18:38     ` Bill Waddington
2006-04-16  3:48       ` Alistair John Strachan [this message]
2006-04-16  4:30         ` Randy.Dunlap
     [not found]     ` <fa.UjEGyG0y7x3qVLsO0eHpXVza2r8@ifi.uio.no>
2006-06-10 22:58       ` Bill Waddington
     [not found] <61Y0s-AN-23@gated-at.bofh.it>
     [not found] ` <61UzA-43O-5@gated-at.bofh.it>
     [not found]   ` <61Y0s-AN-25@gated-at.bofh.it>
     [not found]     ` <61Y0s-AN-21@gated-at.bofh.it>
2006-04-15 23:33       ` Robert Hancock
2006-04-15 23:51         ` Alan Cox

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