Ar Maw, 2006-06-27 am 10:27 -0500, ysgrifennodd James Bottomley: > On a PAE platform, dma_addr_t is u64 and unsigned long is u32, so any > address > 4GB will be truncated by these operations. > > I think all this does is cause a slow leak of dma mappings, and on any > kernel > 2.6.16 the leak should be even smaller, since we've severely > restricted the use_sg == 0 case. It probably is only significant on > x86_64 with the gart iommu enabled. On x86_64 the dma_addr_t and the ulong are both 64bit so the problem doesn't arise. Alan - : send the line "unsubscribe linux-scsi" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
