Shreyas writes: > > The PCI express card for which I am allocating this DMA memory is cabable of > accessing 64bit memory, but I am limiting physical memory to 32bit as the > RAM is not > 4 Gigs >
Maybe some of the physical memory is mapped above 4GB due to things other other than physical memory (like PCI device memory) being mapped below 4GB. If this were the case, then I imagine the DMA system would be allocating bounce buffers for you. I'd remove the artificial 32-bit restriction and see if that helps at all. Drew _______________________________________________ networking-discuss mailing list [email protected]
