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Date: Mon, 02 Sep 2002 11:16:31 +0200
From: Jean-Luc Coulon <jean-luc.coulon@wanadoo.fr>
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To: Alan Cox <alan@lxorguk.ukuu.org.uk>
CC: Rik van Riel <riel@conectiva.com.br>, linux-kernel@vger.kernel.org
Subject: Re: 2.4.20-pre2-ac3 stops responding
References: <Pine.LNX.4.44L.0208161340000.1430-100000@imladris.surriel.com>
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Alan Cox wrote:
> 
>  "On Fri, 2002-08-16 at 18:13, Jean-Luc Coulon wrote:
> > At boot time, I get the messages :
> >
> > Aug 16 11:34:19 f5ibh kernel: ALI15X3: simplex device: DMA disabled
> > Aug 16 11:34:19 f5ibh kernel: ide0: ALI15X3 Bus-Master DMA disabled
> > (BIOS)
> 
> Linux did the simplex device check. Your ALi controller only permits DMA
> on one of the devices at a time. What is attached to the ALi controller
> ? Also does 2.4.19 base enable DMA correctly ?
> 
What is the simplex device check ? You will find thereafter a copy of
the syslog while booting 2.4.19, it seems that it accepts both with DMA
enabled.

> If sSep  2 09:00:51 f5ibh kernel: ALI15X3: chipset revision 193
f5ibh kernel: ALI15X3: not 100%% native mode: will probe irqs later
f5ibh kernel:     ide0: BM-DMA at 0xd000-0xd007, BIOS settings: hda:DMA,
hdb:DMA
f5ibh kernel:     ide1: BM-DMA at 0xd008-0xd00f, BIOS settings: hdc:pio,
hdd:pio
f5ibh kernel: hda: QUANTUM FIREBALLP LM30, ATA DISK drive
fibh kernel: hdb: ST3491A, ATA DISK drive
f5ibh kernel: hdc: GoldStar CD-RW CED-8083B, ATAPI CD/DVD-ROM drive
f5ibh kernel: hdd: CREATIVECD3621E, ATAPI CD/DVD-ROM drive
f5ibh kernel: ide0 at 0x1f0-0x1f7,0x3f6 on irq 14
f5ibh kernel: ide1 at 0x170-0x177,0x376 on irq 15
f5ibh kernel: blk: queue c023d544, I/O limit 4095Mb (mask 0xffffffff)
f5ibh kernel: hda: 58633344 sectors (30020 MB) w/1900KiB Cache,
CHS=3649/255/63, UDMA(33)
f5ibh kernel: blk: queue c023d680, I/O limit 4095Mb (mask 0xffffffff)
f5ibh kernel: hdb: 836070 sectors (428 MB) w/120KiB Cache,
CHS=899/15/62, DMA

---
Regards
	Jean-Luc
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