On Wed, Jun 26, 2019 at 10:11:06AM +0200, David Hildenbrand wrote: > Back then, I already mentioned that we might have some users that > remove_memory() they never added in a granularity it wasn't added. My > concerns back then were never fully sorted out. > > arch/powerpc/platforms/powernv/memtrace.c > > - Will remove memory in memory block size chunks it never added > - What if that memory resides on a DIMM added via MHP_MEMMAP_DEVICE? > > Will it at least bail out? Or simply break? > > IOW: I am not yet 100% convinced that MHP_MEMMAP_DEVICE is save to be > introduced. Uhm, I will take a closer look and see if I can clear your concerns. TBH, I did not try to use arch/powerpc/platforms/powernv/memtrace.c yet. I will get back to you once I tried it out. -- Oscar Salvador SUSE L3