[2187] in linux-scsi channel archive
Re: BusLogic/CD-R problem?
daemon@ATHENA.MIT.EDU (Leonard N. Zubkoff)
Mon Jul 21 13:17:57 1997
Date: Mon, 21 Jul 1997 10:13:35 -0700
From: "Leonard N. Zubkoff" <lnz@dandelion.com>
To: wiegley@usc.edu
CC: linux-scsi@vger.rutgers.edu
In-reply-to: <33D39593.2340D110@usc.edu> (message from Jeff Wiegley on Mon, 21
Jul 1997 10:00:04 -0700)
Date: Mon, 21 Jul 1997 10:00:04 -0700
From: Jeff Wiegley <wiegley@usc.edu>
I've just switched to using a BusLogic adapter and I was attempting to
burn a CD-ROM in my HP-4020i.
Nothing else was running while I did the cdwrite except for the system
stuff that is started at boot time.
I've tried this twice now, the result is two useless coasters.
when writing the CD I get write sense errors that come up when this
happens in /var/log/messages...
When during the process does this occur? Do you have disconnect/reconnect
enabled for the CD-R? From the messages, it looks like you're either having a
bus lockup, which could be due to cabling or termination, or the CD-R might be
holding the bus for too long.
What is going on? Why am I getting these errors? target 0, channel 0,
host 0 is my seagate barracuda 4Gig drive it should easily keep up with
the HP CD-R.
what is a CCB and what program would abort it or cause it to abort?
A CCB is the data strcture the driver hands to the host adapter to get a SCSI
command executed.
Is there something I can do to get the writing process of my CD-R to
complete without getting these
strange SCSI errors that seems to trash the CD-R?
Probably the CD-R trashing occurs due to the bus reset.
If nothing else works, you can try increasing the timeout constant in
"linux/drivers/scsi/sd.c" to something much longer.
Please send me a copy of the BusLogic driver ans SCSI subsystem startup
messages. Perhaps that might shed some light on the problem. Also, please
describe the configuration of your devices, cabling, and termination.
Leonard
