On Wed, Apr 17, 2019 at 02:05:29PM -0400, tedheadster wrote: > > Christoph, > > your patch fixed it nicely. No more error messages when I boot with > > 16GiB enabled on a 32-bit PAE-enabled system. > > Christoph, > can you please submit this patch to be backported to the long-term > kernels (4.14, 4.9, 4.4, 3.18, and 3.16)? My patch that triggered the issue for SCSI was only merges in 4.18. Do you have other reason why you need swiotlb on the older kernels?