Date: Tue, 10 Feb 1998 11:44:22 +0900 From: Satoh Junichi <junichi@astec.co.jp> To: kmitch@cslab.vt.edu Cc: hackers@FreeBSD.ORG Subject: Re: Zip/CD and Stable/Current Message-ID: <199802100244.LAA13370@stone.astec.co.jp> In-Reply-To: Your message of "Mon, 09 Feb 1998 08:58:04 EST." <199802091358.IAA14080@labrador.cslab.vt.edu>
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> The PC itself is a Gateway model 3110 which is a Pentium II 233 machine
> with both a zip and a CDrom drive on the secondary IDE channel. If I
> disable the secondary IDE channel, then it will boot. 2.2.5 boots fine, but
> tries to put the zip drive on the CD driver and the end result is both
> the zip and the cdrom drive are inaccessible.
>
> It appears that something has changed in the IDE stuff that could be
> responsible for this lockup. Has anyone else seen this??
The ZIP drive reports AT_TYPE_DIRECT.
On FreeBSD 2.2.5R, wcdattach() is called when a AT_TYPE_DIRECT device is
found. If wcdattach() proves the ZIP drive, it may freeze.
To avoid it, there are two solutions.
1. Use wfd driver in RELENG_2_2 branch that supports ATAPI LS-120 and
ZIP drives.
2. Append 'break' to atapi.c like this.
(if you don't use the ZIP drive and your CD-ROM drive reports
AT_TYPE_CDROM.)
== atapi.c ==========================================================
switch (ap->devtype) {
default:
/* unknown ATAPI device */
printf ("wdc%d: unit %d: unknown ATAPI type=%d\n",
ctlr, unit, ap->devtype);
break;
case AT_TYPE_DIRECT: /* direct-access */
break; <---- !!! NOTICE !!!
case AT_TYPE_CDROM: /* CD-ROM device */
#if NWCD > 0
/* ATAPI CD-ROM */
if (wcdattach (ata, unit, ap, ata->debug) < 0)
======================================================================
---
Junichi
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