[130] in linux-scsi channel archive
Dangerous bug in generic scsi device
daemon@ATHENA.MIT.EDU (Dejan Ilic)
Sat Apr 1 15:42:10 1995
To: submit-linux-dev-scsi@ratatosk.yggdrasil.com
From: Dejan Ilic <svedja@Morgaine.rydnet.lysator.liu.se>
Date: Sat, 1 Apr 1995 21:32:20 +0200
Reply-To: svedja@lysator.liu.se
Hi, I've allready sent a copy to entropy@world.std.com,
heiko@colossus.escape.de
Here comes the letter:
Hi.
Thanks for a wonderful system. Without it my development of software for
a non-standard 3M scsi tape streames would be impossible.
Now about the bug:
Someone tell me if it is a bug or not but according to the HOWTO &
logical sense it is.
If you have (like me) 2 units attached to one controller everyting is OK.
If you have 2 controllers with one unit each, the unit with HIGHER lun on
controller that detects first, the bug will show up by reversing the
order of my units!!! sga <--> sgb !!
my config 1 (OK):
NCR-810 controller (PCI)
MAXTOR 340MB (lun 1) disk
3M MCD-II/SCSI (lun5) tape
sga --> MAXTOR { OK }
sgb --> 3M { OK }
config where the bug shows up: (in order of detecting by system)
Future Domain 1680 (ISA) controller with 3M tape
NCR-801 controller MAXTOR 340 disk.
sga --> 3M { BAD }
sgb --> MAXTOR { BAD }
I got cold chills as I was playing with the format command yesterday when
I had setup (1) and switched this morning and luckyly commenting out the
format code :-)
=====================================================================
Dejan Ilic, Student at Tech Univ. of Linkoping, Sweden
Email: svedja@Morgaine.rydnet.lysator.liu.se
Email2: svedja@lysator.liu.se
Email3: d92dejil@und.ida.liu.se
Phone: +46 13 261118
"I may look like The Devil but i'm an angel deep down in my heart"
=====================================================================
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