Date: Sat, 4 Nov 2000 13:32:17 -0700 From: "Kenneth D. Merry" <ken@kdm.org> To: Wilko Bulte <wkb@freebie.demon.nl> Cc: FreeBSD-alpha mailing list <freebsd-alpha@freebsd.org>, justin@freebsd.org Subject: Re: SCSI cdrom attach problems on 4-stable Message-ID: <20001104133216.A11678@panzer.kdm.org> In-Reply-To: <20001104200119.A13502@freebie.demon.nl>; from wkb@freebie.demon.nl on Sat, Nov 04, 2000 at 08:01:19PM %2B0100 References: <20001104200119.A13502@freebie.demon.nl>
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On Sat, Nov 04, 2000 at 20:01:19 +0100, Wilko Bulte wrote:
> Observed on my Miata, but also on a AS1000A at work:
[ ... ]
> (cd0:isp0:0:6:0): got CAM status 0x50
> (cd0:isp0:0:6:0): fatal error, failed to attach to device
> (cd0:isp0:0:6:0): lost device
> (cd0:isp0:0:6:0): removing device entry
Status 0x50 is:
CAM_AUTOSENSE_FAIL = 0x10,/* Autosense: request sense cmd fail */
and
CAM_DEV_QFRZN = 0x40, /* The DEV queue is frozen w/this err */
The first one is the important thing. For some reason the command is
failing but we aren't getting any sense information back.
> miata#camcontrol devlist
> <SEAGATE ST34371W 0702> at scbus0 target 0 lun 0 (pass0,da0)
> <IBM DDRS-34560W S97B> at scbus0 target 1 lun 0 (pass1,da1)
> <IBM DDRS-39130D DC1B> at scbus0 target 2 lun 0 (pass2,da2)
> <DEC RRD46 (C) DEC 0557> at scbus0 target 6 lun 0 (pass3)
> miata#
>
> The AS1000A has a different cdrom drive (RRD46) but I also tested a
> RRD46 on it which caused the same 'lack of attach'. This is annoying at
> best. Sometimes a 'camcontrol rescan' will cause 'cd' to attach.
There are several things to try here.
First, try this:
camcontrol cmd pass3 -v -c "25 0 0 0 0 0 0 0 0 0" -i 8 "i4 i4"
That will issue a read capacity command to the drive. The second thing to
try is booting with a CD in the drive, and without a CD in the drive, and
see if one or the other causes it to probe.
Ken
--
Kenneth Merry
ken@kdm.org
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