[7650] in linux-scsi channel archive
RE: Linux SCSI seagate (TMC-950) driver help
daemon@ATHENA.MIT.EDU (Christian Jullien)
Wed Dec 8 02:14:21 1999
From: "Christian Jullien" <eligis@wanadoo.fr>
To: "Egbert Eich" <eich@hilbert.ikp.physik.tu-darmstadt.de>
Cc: <linux-scsi@vger.rutgers.edu>
Date: Wed, 8 Dec 1999 08:11:07 +0100
Message-ID: <NDBBKEKEPPEHBDFOABLGKECLCBAA.eligis@wanadoo.fr>
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In-Reply-To: <14413.43086.898088.673354@hilbert.ikp.physik.tu-darmstadt.de>
> Egbert Eich wrote:
> I did not have much time to look into your problem but here is
> an obivous thing to try: Are you seeing any interrupts on
> line 5 (check /proc/interrupts or /proc/stat - the latter one
> will give you even non-registered ints). If you do - what I
> expect - check if the number of ints is increasing after you
> got these disconnects.
I re-installed disconnection in the driver and checked what happens:
using a 4mm HT DAT and command 'tar tvf /dev/st0' my DAT starts to wakeup
but I got no response and 'more /proc/interrupts' in another console gives
me 0, **ZERO** IRQ 5 !!!!. /proc/stats is not better!
In another mail, Alan Cox suggests:
> First guess is that the board its in is ISA/PCI and the IRQ it uses isnt
> marked as a legacy ISA irq in the bios ?
I think he is right (or the problem is related to something like that, since
IRQ is never raised), but how can I force this stupid board (remember, a
port replicator!!) to change its behavior? I've not smart BIOS access for
that board except enabled/disabled !!
Another related question, how I can I force Linux to receive this #@*!~
interrupt (NT receives it after all)
Isn't it a 'force IRQ to something' somewhere that can help ? Now, I think
it's more an interrupt probleme thant a driver problem.
Thanks, christian
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