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SubjectRe: 2.1.111: IDE DMA disabled?
   From: (Linus Torvalds)
Date: 26 Jul 1998 21:21:11 GMT

(grep for "bus_speed", for example, and notice how a comment
says that a system_bus_speed setting of 40 is "safe" on PCI. It's
nowhere close to safe - if we assume that the system bus speed is 40 and
it really is 66MHz PCI, we're now completely off).

grep again, last time I checked that parameter is only used to tune
"PIO modes" on broken CMD640 chipsets,

David S. Miller

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