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Date: Fri, 28 Feb 2003 16:28:41 +0100
From: Stephan von Krawczynski <skraw@ithnet.com>
To: linux-kernel <linux-kernel@vger.kernel.org>
Cc: alan@lxorguk.ukuu.org.uk, marcelo@conectiva.com.br
Subject: Re: OOPS in 2.4.21-pre5, ide-scsi
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On Thu, 27 Feb 2003 22:10:17 +0100
Stephan von Krawczynski <skraw@ithnet.com> wrote:

> >>EIP; c0213ab3 <idescsi_pc_intr+63/360>   <=====

Additional comment:

This oops is reproducable at my system. I tried today again, and again it
happened on the same EIP. If I got that right it is this code:


                if (status.b.check)
                        rq->errors++;
                idescsi_end_request(drive, 1);
                return ide_stopped;
        }

Obviously rq is somehow damaged. I tried to retrieve further info by adding:

/* $$$ */
                local_irq_enable();
                printk("scsi: %08lx, pc: %08lx, rq: %08lx\n",scsi,pc,rq);
                if (status.b.check)
                        rq->errors++;
                idescsi_end_request(drive, 1);
                return ide_stopped;
        }

Interestingly there are about 10 lines in syslog with this output, then it
stops for around 10-20 seconds, and _then_ it oops'es. I got the feeling that
this "late" rq is indeed long gone, when the code is entered.
I tried to patch a bit around this problem, but no success at this time...

-- 
Regards,
Stephan
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