On Wed, Mar 18, 2020 at 03:36:44PM +0200, Amir Goldstein wrote: > > > I also wanted to run either overlay xfstests or unionmount-testsuite. But > > > none of these seem to give me enough flexibility where I can specify > > > that overlayfs needs to be mounted on top of virtiofs. > > > > > > I feel that atleast for unionmount-testsuite, there should be an > > > option where we can simply give a target directory and tests run > > > on that directory and user mounts that directory as needed. > > > > > > > Need to see how patches look. > > Don't want too much configuration complexity, but I agree that some > > flexibly is needed. > > Maybe the provided target directory should be the upper/work basedir? > > > > Vivek, > > I was going to see what's the best way to add the needed flexibility, > but then I realized I had already implemented this undocumented > feature. > > I have been using this to test overlay over XFS as documented here: > https://github.com/amir73il/overlayfs/wiki/Overlayfs-testing#Setup_overlayfs_mount_over_XFS_with_reflink_support > > That's an example of how to configure a custom /base mount for > --samefs to be xfs. Hi Amir, This seems to work for me. Thanks for the idea. I put following entries in /etc/fstab. myfs /mnt/virtiofs-lower_layer virtiofs defaults 0 0 /mnt/virtiofs-lower_layer /base none bind 0 0 After that tests seem to start but soon I hit failures. Now its time to debug the failures one at a time. Vivek
