I am using a kernel I compiled optimized for my K6-3 450. It is based on
RedHats 2.4.3-12 source.
When I let it enable DMA for my Promise it works well for a while, but then
I start getting BAD DMA Status, 'Kernel unable to handle paging requests'
and attempts to read/write beyond the end of the device.
When I disable UDMA all this goes away.
I *thought* that Linux Kernel 2.4 was supposed to cure these issues. Maybe
I was wrong, however - I would like to enable UDMA for my drives.
Don't know if this has something to do with it, but I have three raid
devcies setup all together over the two drives connected to the promise
controller, they are both 30 Gig Maxtor UDMA 100 drives. md0,md1, and md2
for /home /usr and /var
Any thoughts would be greatly appreciated...