jes.soren...@redhat.com writes: > From: Jes Sorensen <jes.soren...@redhat.com> > > O_DIRECT (cache=none) requires sector alignment, however the physical > sector size of CDROM/DVD drives is 2048, as opposed to most disk > devices which use 512. QEMU is hard coding 512 all over the place, so > allowing O_DIRECT for CDROM/DVD devices does not work. > > Return -ENOTSUP from cdrom_open() in this case.
Good short-term fix.
