On Mon, Aug 31, 2020 at 5:18 AM Jason Gunthorpe <jgg@xxxxxxxx> wrote: > > On Sun, Aug 30, 2020 at 03:32:09AM -0700, Sagi Grimberg wrote: > > Currently we allocate rx buffers in a single contiguous buffers > > for headers (iser and iscsi) and data trailer. This means > > that most likely the data starting offset is aligned to 76 > > bytes (size of both headers). > > > > This worked fine for years, but at some point this broke. > > To fix this, we should avoid passing unaligned buffers for > > I/O. > > That is a bit vauge - what suddenly broke it? I will try some regression testing to see when it broke. As this is RDMA, it takes real hardware and the build/reboot cycle takes a lot longer. I should be able to get to this in the middle of the week. If anyone has a guess of what version to "look around", please let me know. Doug > > Jason -- Doug Dumitru EasyCo LLC