On Thu, Jan 30, 2020 at 11:23:38AM -0800, Kees Cook wrote: > Hm, looks like it's allocated from the low 16MB. Seems like poor naming! > :) There seems to be a LOT of stuff using GFP_DMA, and it seems unlikely > those are all expecting low addresses? Most of that is either completely or partially bogus. Besides the weird S/390 stuff pretty much everything should be using the dma allocators. A couple really messed up drivers even pass GFP_DMA* to the dma allocator, but my patches to fix that up seem to be stuck.
