Subject: Re: Slow 486 seems really slow
To: Jonathan R. Hinds <jon@fork.yi.org>
From: Frederick Bruckman <fb@enteract.com>
List: port-i386
Date: 02/14/2000 03:59:53
On Mon, 14 Feb 2000, Jonathan R. Hinds wrote:
> dmesg says the follow about the controller and hard drive:
>
> wdc0 at isa0 port 0x1f0-0x1f7 irq 14
> wd0 at wdc0 channel 0 drive 0: <QUANTUM FIREBALL1280A>
> wd0: drive supports 8-sector pio transfers, lba addressing
> wd0: 1222MB, 2484 cyl, 16 head, 63 sec, 512 bytes/sect x 2503872 sectors
> wd0: drive supports PIO mode 4, DMA mode 2
>
> Does this mean that it is using DMA? I guess that I will try another hard
> drive and see what happens.
Guess so. I would try "de-rating" to DMA mode 1, in the kernel config,
to try and work around the bug. PIO mode 3, DMA mode 1 is plenty fast,
if it works.