Subject: Re: Crash reading from /dev/rst0
To: Paul Ripke <weripp@itwol.bhp.com.au>
From: Hauke Fath <hauke@Espresso.Rhein-Neckar.DE>
List: port-mac68k
Date: 12/12/1997 19:21:46
At 0:57 Uhr +0100 12.12.1997, Paul Ripke wrote:

>Sorry, should have been clearer - when using SBC, an 'mt rewind' will
>block most interupts until the operation completes - well, clock
>interupts anyway. Until the rewind completes, the machine appears
>"hung" - completely unresponsive.

Interesting. Isn't that exactly the situation "disconnect-reconnect" was
invented for? So the slow device could do its stuff and call the initiator
when its work is done?

>Using NCRSCSI, the rewind seems to be "queued" allowing the rest of
>the OS to continue normal operation. I can background the 'mt' and
>continue work.

Ahh, SCSI...   =8(

	hauke


--
"It's never straight up and down"     (DEVO)