RE: Serverworks dma_intr: error=0x40 { UncorrectableError }

From: Alan Cox (alan@lxorguk.ukuu.org.uk)
Date: Tue Nov 19 2002 - 19:28:52 EST


On Tue, 2002-11-19 at 21:59, Manish Lachwani wrote:
> ALso, we had been using TYAN S2518 with OSB4 in UDMA 2. However, it causes
> data corruption when there is IO with even one drive. We used two drives in
> master-master and master-slave mode and it did not solve the problem. EVen
> at UDMA 0, we experienced the same issue of data corruption. Once does not
> need to have 0x40 errors to see this corruption. If you want to see this
> corruption, use the dt utility and then run:

Known. The newer kernels will panic in this case to avoid corrupting,
and the 2.4.20-ac/2.5.4x kernels will not use UDMA for disks on OSB4.
The newer serverworks (CSB5/CSB6) doesn't have this problem btw

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