From: Jens Axboe <axboe@suse.de>
To: linux kernel mailing list <linux-kernel@vger.kernel.org>
Subject: Re: 2.6 vs 2.4 regression when running gnomemeeting
Date: Sun, 21 Dec 2003 20:23:38 +0100 [thread overview]
Message-ID: <20031221192338.GW2069@suse.de> (raw)
In-Reply-To: <20031220222034.GA2040@merlin.emma.line.org>
On Sat, Dec 20 2003, Matthias Andree wrote:
> On Sat, 20 Dec 2003, Nick Piggin wrote:
>
> > >/dev/hda:
> > >multcount = 0 (off)
> > >IO_support = 0 (default 16-bit)
> > >unmaskirq = 0 (off)
> > >using_dma = 1 (on)
> > >keepsettings = 0 (off)
> > >readonly = 0 (off)
> > >readahead = 256 (on)
> > >geometry = 65535/16/63, sectors = 117210240, start = 0
> > >
> >
> > This might be a problem - try turning unmaskirq on, and possibly
> > 32-bit IO support on (hdparm -u1 -c1 /dev/hda). I think there is
> > a remote possibility that doing this will corrupt your data just
>
> Does 32-bit I/O support make a difference for DMA transfers at all or
> just for PIO?
It's just for PIO.
--
Jens Axboe
next prev parent reply other threads:[~2003-12-21 19:23 UTC|newest]
Thread overview: 35+ messages / expand[flat|nested] mbox.gz Atom feed top
2003-12-19 20:11 2.6 vs 2.4 regression when running gnomemeeting Christian Meder
2003-12-19 20:32 ` William Lee Irwin III
2003-12-19 23:30 ` Christian Meder
2003-12-20 0:21 ` Nick Piggin
2003-12-20 0:37 ` Christian Meder
2003-12-20 0:48 ` Nick Piggin
2003-12-20 1:11 ` Christian Meder
2003-12-20 1:26 ` Nick Piggin
2003-12-20 1:52 ` Christian Meder
2003-12-20 2:38 ` Nick Piggin
2003-12-20 2:55 ` Con Kolivas
2003-12-20 3:32 ` Christian Meder
2003-12-20 3:50 ` Nick Piggin
2003-12-20 4:16 ` Christian Meder
2003-12-20 4:32 ` Nick Piggin
2003-12-20 5:15 ` Christian Meder
2003-12-20 8:31 ` Con Kolivas
2003-12-20 11:19 ` Ingo Molnar
2003-12-20 16:17 ` Christian Meder
2003-12-20 16:49 ` Christian Meder
2003-12-20 17:42 ` Ingo Molnar
2003-12-21 1:40 ` Christian Meder
2003-12-21 8:57 ` Ingo Molnar
2003-12-22 1:19 ` Christian Meder
2003-12-22 1:47 ` Con Kolivas
2003-12-22 8:48 ` Ingo Molnar
2003-12-20 23:29 ` Nick Piggin
2003-12-20 22:20 ` Matthias Andree
2003-12-21 19:23 ` Jens Axboe [this message]
2003-12-22 10:54 ` Andrew McGregor
2003-12-22 11:15 ` Con Kolivas
2003-12-22 12:51 ` Ingo Molnar
2003-12-22 13:25 ` Nick Piggin
2003-12-20 19:34 ` Marc Schiffbauer
2003-12-21 1:49 ` Christian Meder
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