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Date: Thu, 6 Feb 2003 13:20:43 +0100
From: Stephan von Krawczynski <skraw@ithnet.com>
To: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Cc: rossb@google.com, alan@redhat.com, linux-kernel@vger.kernel.org
Subject: Re: 2.4.21-pre4: PDC ide driver problems with shared interrupts
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On 05 Feb 2003 18:12:31 +0100
Benjamin Herrenschmidt <benh@kernel.crashing.org> wrote:


> Stephan: Can you try editing ide-dma.c, function
> __ide_dma_test_irq(), and remove that line:
> 
> -	drive->waiting_for_dma++;
> 
> And tell us if it helps in any way.
> 
> Ben.

Hello Ben,

as requested I tried the above "patch" and had no problem so far. Current
situation is:
(ide2, ide3 are PDC, eth2 is tg3)

           CPU0       
  0:    6332048          XT-PIC  timer
  1:      14112          XT-PIC  keyboard
  2:          0          XT-PIC  cascade
  5:          0          XT-PIC  EMU10K1
  7:      14950          XT-PIC  HiSax
  9:   30600647          XT-PIC  ide2, ide3, aic7xxx, aic7xxx, eth0, eth1, eth2
 12:     234451          XT-PIC  PS/2 Mouse
 15:          2          XT-PIC  ide1
NMI:          0 
LOC:          0 
ERR:          0
MIS:          0

I would not say this is a rock-solid test case. I will continue to stress the
setup and keep you informed. Anyway it looks stable up to now.

Regards,
Stephan