Subject: Re: NetBSD-0.9 filesystem hangs?
To: Eric S. Hvozda <ack@clark.net>
From: Simon J. Gerraty <sjg@zen.void.oz.au>
List: netbsd-bugs
Date: 11/08/1993 13:00:38
> From: ack@clark.net (Eric S. Hvozda)

> Do you have IDE drives?  I have two IDE drives in the master/slave
> configuration and I experince hangs like this semi frequently.  It has

Yes indeed.  My boot disk is an IDE drive. The rest are SCSI.

> demonstrated to me that a race conidtion that exists in the file system
> can make this happen when the files system thinks there is more
> data to come, bu the driver controller has nothing more to offer.

Ouch.  Is anyone working on this?  I had been running 386bsd with pk
0.2.4 for several months on this same hardware and never had a problem
like this.  I'd hate to have to revert back to 386bsd.

I've downloaded NetBSD-current (Nov 6) and am now running a kernel
built from that in the hope that it behaves better. I've also slowed
my AT bus to its lowest speed (6MHz instead of 8) just in case...

>Re: tty drivers.

> I know someone who is thinking of playing around with attempting to 
> implement the sun style call out devices for the tty so a single
> modem can be used for two purposes.  You and him might want to
> exchange ideas...

Indeed, I got a seperate mail item about that, though I'm not sure the
return address was going to work.

Has any one ported sio.c to NetBSD?  I'm sure its not perfect,
but again I've used it for several months and can't complain about it
at all.

--sjg

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