Re: Whining about 2.5 (was Re: [PATCH] Re: bug? in using generic read/write functions to read/write block devices in 2.4.11-pre2O

Alan Cox (alan@lxorguk.ukuu.org.uk)
Thu, 4 Oct 2001 21:53:06 +0100 (BST)

> Is there really a NUMA machine out there where you can DMA out of another
> node's 16 bit ISA space? So far the differences in the zones seem to be

DMA engines are tied to the node the device is tied to not to the processor
in question in most NUMA systems.

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