Re: Serverworks OSB4 in impossible state

From: Martin Wilck (
Date: Thu Jun 13 2002 - 06:59:06 EST

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

> And here is the same with the ROSB4. This time, some of the
> DMA writes are shown. After loading the second PRD entry
> which describes a memory region of 7800h bytes, 3000h bytes
> 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?
Was that a Linux system? If yes, I assume you never saw "OSB4 in
impossible state ..." ?


Martin Wilck                Phone: +49 5251 8 15113
Fujitsu Siemens Computers   Fax:   +49 5251 8 20409
Heinz-Nixdorf-Ring 1
D-33106 Paderborn 

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