Date: Mon, 20 Apr 1998 20:27:45 +0200 (MEST) From: Søren Schmidt <sos@FreeBSD.ORG> To: mike@smith.net.au (Mike Smith) Cc: kpielorz@tdx.co.uk, mike@smith.net.au, hardware@FreeBSD.ORG Subject: Re: best wdc0 flags ? Message-ID: <199804201827.UAA01331@sos.freebsd.dk> In-Reply-To: <199804201656.JAA00786@dingo.cdrom.com> from Mike Smith at "Apr 20, 98 09:56:56 am"
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In reply to Mike Smith who wrote:
> > Not a good idea... 32 bit transfers cause my nice shiny new Fireball 4.3Gb
> > SE's to barf (this is on a 440FX chipset 'embeded' controller).
>
> Have you tried enabling DMA? (0xa0ffa0ff) Also check your BIOS
> configuration to make sure that the disks are set up correctly (PIO
> mode, etc.)
Ahem, I've seen this on ALL quantum drives and the natoma chipset....
The natoma apparently pushes the timing to the limit, and crappy
drives can't keep up (btw all my Maxtors works just fine)...
I bet that you use autoconfig for the drives and that it picks pio4
mode for the Quantum. Then go into the BIOS setup and set it to
use pio3 mode hard. And voila it works again....
> > A bit annoying - but probably expected from Quantum... <g>
>
> Not really. They *ought* to work - certainly we're seeing 32-bit
> transfers working on other SE-series drives just fine.
No this is expected from Quantum, they have earned plenty of minusses
in my book lately (DOA's, sub spec ratings, fastageing etc etc)...
-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-
Søren Schmidt (sos@FreeBSD.org) FreeBSD Core Team
Even more code to hack -- will it ever end
..
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