Re: Serverworks OSB4 in impossible state

From: Daniela Engert (dani@ngrt.de)
Date: Thu Jun 13 2002 - 07:04:56 EST


On 13 Jun 2002 13:59:06 +0200, Martin Wilck wrote:

>Am Don, 2002-06-13 um 13.50 schrieb Daniela Engert:

>> are transferred before IRQ14 is asserted. The IRQ14 INTACK
>> cycle is the last transaction on the PCI bus ever, the
>> machine is completely frozen!
>
>You say (dma_base+2) is never read?

Exactly. If checked this twice, the PCI tracer was configured to gather
*all* PCI bus events.

>Was that a Linux system?

No, I think this doesn't matter here at all, because the hardware
stalls completely - full stop.

Ciao,
  Dani

~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
Daniela Engert, systems engineer at MEDAV GmbH
Gräfenberger Str. 34, 91080 Uttenreuth, Germany
Phone ++49-9131-583-348, Fax ++49-9131-583-11

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