Re: 2.4.19 eat my disc (contents)
On Sun, Aug 11, 2002 at 06:52:52PM +0100, Dr. David Alan Gilbert wrote:
> Hi,
> I've just lost the contents of my disc on my Alpha to 2.4.19 - be
> careful! (luckily there wasn't anything important on it...or at least if
> there was I can't remember what....)
>
> Some details:
> 2.4.19 straight
> Alpha 21164A on LX164 board
> Compiled for LX164 architecture
> Hard drive is an IBM 34GB Deathstar connected to the on board CMD646
> controller.
This is very similar to my machine, though I run with a SCSI disk as the
main disk and an IDE for extra storage. The CMD646 driver is somewhat
questionable: I noticed that in 2.4.17 (which I'm still running), the
driver refuses to do DMA to the IDE disk. There's a comment in the source
(linux/drivers/ide/cmd64x.c) including "Due to massive hardware bugs", so
I'd be careful with it. Did you have DMA enabled somehow?
Jon Leonard
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