It actually never worked with libvirt, as auto-generated names are different on source and destination.
It's unsafe and useless to migrate by auto-generated node-names, so let's forbid it. Signed-off-by: Vladimir Sementsov-Ogievskiy <vsement...@virtuozzo.com> Reviewed-by: Andrey Shinkevich <andrey.shinkev...@virtuozzo.com> Reviewed-by: Eric Blake <ebl...@redhat.com> --- migration/block-dirty-bitmap.c | 7 +++++++ 1 file changed, 7 insertions(+) diff --git a/migration/block-dirty-bitmap.c b/migration/block-dirty-bitmap.c index 65f2948f07..71528581e4 100644 --- a/migration/block-dirty-bitmap.c +++ b/migration/block-dirty-bitmap.c @@ -285,6 +285,13 @@ static int add_bitmaps_to_list(BlockDriverState *bs, const char *bs_name) return -1; } + if (bs_name[0] == '#') { + error_report("Bitmap '%s' in a node with auto-generated " + "name '%s' can't be migrated", + bdrv_dirty_bitmap_name(bitmap), bs_name); + return -1; + } + FOR_EACH_DIRTY_BITMAP(bs, bitmap) { if (!bdrv_dirty_bitmap_name(bitmap)) { continue; -- 2.21.0