From: Bartlomiej Zolnierkiewicz <B.Zolnierkiewicz@elka.pw.edu.pl>
To: Santiago Garcia Mantinan <lkml@manty.net>
Cc: linux-kernel@vger.kernel.org
Subject: Re: IDE DMA setting not available on 2.4.23 as a module
Date: Sun, 30 Nov 2003 21:15:07 +0100 [thread overview]
Message-ID: <200311302115.07898.bzolnier@elka.pw.edu.pl> (raw)
In-Reply-To: <20031130195815.GA2409@man.beta.es>
Do you have piix.o module loaded or PIIX support compiled-in?
--bart
On Sunday 30 of November 2003 20:58, Santiago Garcia Mantinan wrote:
> Hi!
>
> Yesterday I started to upgrade my systems to 2.4.23, some of them were
> already running pre or rc versions, but when I tried my Pentium MMX wich
> boots out of SCSI and on which I like to have IDE driver as a module, I
> found that the DMA setting was not working, hdparm was saying:
>
> setting using_dma to 1 (on)
> HDIO_SET_DMA failed: Operation not permitted
>
> So I changed the driver option to set DMA by default to ON, but nothing
> changed, still the same problem, then I tried to compile the IDE driver
> into the kernel instead of having it as a module and then the dma support
> started to work, either having the driver enable it by default or by
> setting it with hdparm.
>
> The motherboard uses a 430TX chipset, thus with a PIIX4 IDE controller.
>
> Is this a bug or is this a known and accepted limitation of having the IDE
> driver as a module?
>
> If you want me to test any patch to see if we can fix this, or need any
> more info, don't hesitate to contact me.
>
> Regards...
next prev parent reply other threads:[~2003-11-30 20:13 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2003-11-30 19:58 IDE DMA setting not available on 2.4.23 as a module Santiago Garcia Mantinan
2003-11-30 20:15 ` Bartlomiej Zolnierkiewicz [this message]
2003-11-30 22:42 ` Santiago Garcia Mantinan
2003-11-30 22:47 ` Bartlomiej Zolnierkiewicz
2003-11-30 23:16 ` Santiago Garcia Mantinan
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