On Wed, Jan 10, 2024 at 12:37:18PM +0000, Matthew Wilcox wrote: > On Wed, Jan 10, 2024 at 10:21:07AM +0100, Christoph Hellwig wrote: > > Hi all, > > > > Darrick reported that the fairly new XFS xfile code blows up when force > > enabling large folio for shmem. This series fixes this quickly by disabling > > large folios for this particular shmem file for now until it can be fixed > > properly, which will be a lot more invasive. > > > > I've added most of you to the CC list as I suspect most other users of > > shmem_file_setup and friends will have similar issues. > > The graphics users _want_ to use large folios. I'm pretty sure they've > been tested with this. It's just XFS that didn't know about this > feature of shmem. At least sgx has all kinds of PAGE_SIZE assumptions. I haven't audited (and am probably not qualified to) audit that code, so I wanted to send a headsup to everyone.