Am 08.12.2020 um 13:59 hat Li Feng geschrieben: > This patch addresses this issue: > When accessing a volume on an NFS filesystem without supporting the file lock, > tools, like qemu-img, will complain "Failed to lock byte 100". > > In the original code, the qemu_has_ofd_lock will test the lock on the > "/dev/null" pseudo-file. Actually, the file.locking is per-drive property, > which depends on the underlay filesystem. > > In this patch, make the 'qemu_has_ofd_lock' with a filename be more generic > and reasonable. > > Signed-off-by: Li Feng <fen...@smartx.com>
Do you know any way how I could configure either the NFS server or the NFS client such that locking would fail? For any patch related to this, it would be good if I could even test the scenario. For this specific patch, I think Daniel has already provided a good explanation of the fundamental problems it has. Kevin
