diff options
| author | Wolfgang Bumiller <w.bumiller@proxmox.com> | 2017-09-20 08:09:33 +0200 |
|---|---|---|
| committer | Michael S. Tsirkin <mst@redhat.com> | 2017-10-15 05:54:44 +0300 |
| commit | 37ef70be6af7e9f2a6f852c68f74bd98dac2664b (patch) | |
| tree | 827770663eae17214eeb785fc21a315e8a70d759 /include/migration | |
| parent | 8e36c336d943c3bfe0d06f5465cc64d44b306e13 (diff) | |
virtio: fix descriptor counting in virtqueue_pop
While changing the s/g list allocation, commit 3b3b0628
also changed the descriptor counting to count iovec entries
as split by cpu_physical_memory_map(). Previously only the
actual descriptor entries were counted and the split into
the iovec happened afterwards in virtqueue_map().
Count the entries again instead to avoid erroneous
"Looped descriptor" errors.
Reported-by: Hans Middelhoek <h.middelhoek@ospito.nl>
Link: https://forum.proxmox.com/threads/vm-crash-with-memory-hotplug.35904/
Fixes: 3b3b0628217e ("virtio: slim down allocation of VirtQueueElements")
Signed-off-by: Wolfgang Bumiller <w.bumiller@proxmox.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Diffstat (limited to 'include/migration')
0 files changed, 0 insertions, 0 deletions