On Sat, Jul 06, 2024 at 08:26:04AM +0200, Christoph Hellwig wrote: > On Fri, Jul 05, 2024 at 10:53:06PM +0000, Chaitanya Kulkarni wrote: > > I tried to reproduce this issue somehow it is not reproducible. > > > > I'll try again on Leon's setup on my Saturday night, to fix that > > case. > > It is passthrough I/O from userspace. The address is not page aligned > as seen in the printk. Forcing bounce buffering of all passthrough > I/O makes it go away. > > The problem is the first mapped segment does not have to be aligned > and we're missing the code to places it at the aligned offset into > the IOVA space. Thanks for the explanation.
