Hans, Thanks for the reply.... is the faulty DMA engine in the Conexant chips not something that can be coded around... at all? I'm not relishing rebuilding this system to get rid of my software RAID components.. ugh
Thanks. Andy <snip>
The cx23415/6 Conexant chips don't have a very good DMA engine and certain situations can cause it to do strange things and ultimate hang. Using a CPU frequency changer application is one know problem. RAID is another. Whether or not it will affect you seems to depend on magic, although VIA chipsets seem to be more prone to it than others. Interestingly, the PVR500 is immune to these problems, almost certainly because it has a PCI bridge, which seems to isolate the conexant chip from any unpleasantness. (Immune provided you use the 0.10.0rc1 driver or up, older drivers can still hang the PVR500). I'm not sure whether interrupts are really a problem here. But I would try to give the PVR350 an interrupt of its own (or at least, not sharing any of the ide interrupts). To be honest, I think it is the RAID array that is the culprit. Switching to using the harddisks 'as is' would probably solve it.
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