Stefano, looks like your original patch needs some more fine tuning: https://bugs.launchpad.net/bugs/1877688
Please check if the assumptions I made about Xen are correct, and please also test whether these changes still work for you with Xen as intended by you. Christian Schoenebeck (2): xen-9pfs: Fix log messages of reply errors 9pfs: fix init_in_iov_from_pdu truncating size hw/9pfs/virtio-9p-device.c | 35 ++++++++++++++++++++++++-------- hw/9pfs/xen-9p-backend.c | 41 ++++++++++++++++++++++++++++---------- 2 files changed, 58 insertions(+), 18 deletions(-) -- 2.20.1