Re: arm32: panic in move_freepages (Was [PATCH v2 0/4] arm64: drop pfn_valid_within() and simplify pfn_valid())

On Fri, Apr 30, 2021 at 07:24:37PM +0800, Kefeng Wang wrote: > > > On 2021/4/30 17:51, Mike Rapoport wrote: > > On Thu, Apr 29, 2021 at 06:22:55PM +0800, Kefeng Wang wrote: > > > > > > On 2021/4/29 14:57, Mike Rapoport wrote: > > > > > > > > > Do you use SPARSMEM? If yes, what is your section s

Re: [RFC 1/2] vfio/pci: keep the prefetchable attribute of a BAR region in VMA

Hi Marc, On 5/1/21 4:30 AM, Marc Zyngier wrote: >> I think Device GRE has some practical problems. >> 1. A lot of userspace code which is used to getting write combined >> mappings to GPU memory from kernel drivers does memcpy/memset on it >> which can insert ldp/stp which can crash on Device Memo