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From: Archie Cobbs <archie@whistle.com>
Message-Id: <199609212231.PAA04375@bubba.whistle.com>
Subject: Re: xcdplayer SCSI bus hang
In-Reply-To: <199609210140.SAA00357@bubba.whistle.com> from Archie Cobbs at "Sep 20, 96 06:40:31 pm"
To: archie@whistle.com (Archie Cobbs)
Date: Sat, 21 Sep 1996 15:31:57 -0700 (PDT)
Cc: freebsd-hackers@freebsd.org, julian@whistle.com (Julian Elischer)
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> Doing anything non-trivial with "xcdplayer", like pressing the
> "pause" button, causes what looks like a SCSI bus hang. The
> SCSI bus LED is lit and the box completely locks up.
> 
> This bug has been around since before 2.1 was released, on this
> machine, anyway.
> 
> Does this happen to anyone else? If not, it's probably because
> of a bogus CD-ROM drive. Anyone know any more?
> 
> Thanks,
> -Archie
> 
> Equipment:
> 
>   Buslogic 946 SCSI host adapter
>   CHINON CD-ROM CDS-535 Q20
>   FreeBSD 2.2-960801-SNAP

Update: according to Julian E. this is a combination of a bug in the
Buslogic board (which causes it to crash/hang) and a bug in the
driver (which fails to reset the board properly). The message
on the console just before the hang is "bt0: Try to abort".

-Archie

___________________________________________________________________________
Archie L. Cobbs, archie@whistle.com  *  Whistle Communications Corporation