On Wed, Aug 12, 2015 at 03:42:47PM +0300, Boaz Harrosh wrote: > The support I have suggested and submitted for zone-less sections. > (In my add_persistent_memory() patchset) > > Would work perfectly well and transparent for all such multimedia cases. > (All hacks removed). In fact I have loaded pmem (with-pages) on a VRAM > a few times and it is great easy fun. (I wanted to experiment with cached > memory over a pcie) And everyone agree that it was both buggy and incomplete. Dan has done a respin of the page backed nvdimm work with most of these comments addressed. I have to say I hate both pfn-based I/O [1] and page backed nvdimms with passion, so we're looking into the lesser evil with an open mind. [1] not the SGL part posted here, which I think is quite sane. The bio side is much worse, though.