[5525] in linux-scsi channel archive
Re: more on scsi tape failures
daemon@ATHENA.MIT.EDU (James Rich)
Fri Jan 1 21:29:26 1999
Date: Fri, 1 Jan 1999 18:16:33 -0700 (MST)
From: James Rich <james@dansfoods.com>
To: Guest section DW <dwguest@win.tue.nl>
cc: dwguest@win.tue.nl, linux-scsi@vger.rutgers.edu, lnz@dandelion.com
In-Reply-To: <199901012351.AAA29848@wsdw01.win.tue.nl>
On Sat, 2 Jan 1999, Guest section DW wrote:
>
> But this is a command to the disk that got the timeout. Strange..
> [Maybe nothing is wrong with the disk, there never is...]
Why is it attempting to reset the disk?? I am reading from the *tape drive*.
Or is target 0 the host adapter? I'm assuming target 0 is the hard disk
(SCSI ID 0).
>
> [Information as I see it: nothing is wrong with the disk.
> Nothing is wrong with the SCSI controller.
> But some error occurs somewhere, and the SCSI subsystem gets
> terminally confused.
>
> Now scsi_old_times_out() starts with spin_lock_irqsave();
> maybe handling of IRQ or io_request_lock is flawed.]
>
> If you can reproduce it, even better.
> No doubt Leonard Zubkoff will correct all that is wrong in the above.
>
> Andries
>
I have been able to reproduce this over and over. I am now going to try
2.2.0-pre3 to see if anything is different.
James Rich
james@dansfoods.com
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