From: Yuan Liu <[email protected]> When QPL compression is enabled on the migration channel and the same dirty page changes from a normal page to a zero page in the iterative memory copy, the dirty page will not be updated to a zero page again on the target side, resulting in incorrect memory data on the source and target sides.
The root cause is that the target side does not record the normal pages to the receivedmap. The solution is to add ramblock_recv_bitmap_set_offset in target side to record the normal pages. Signed-off-by: Yuan Liu <[email protected]> Reviewed-by: Jason Zeng <[email protected]> Reviewed-by: Peter Xu <[email protected]> Message-Id: <[email protected]> Signed-off-by: Fabiano Rosas <[email protected]> (cherry picked from commit a523bc52166c80d8a04d46584f9f3868bd53ef69) Signed-off-by: Michael Tokarev <[email protected]> diff --git a/migration/multifd-qatzip.c b/migration/multifd-qatzip.c index 7b68397625..6a0e989fae 100644 --- a/migration/multifd-qatzip.c +++ b/migration/multifd-qatzip.c @@ -373,6 +373,7 @@ static int qatzip_recv(MultiFDRecvParams *p, Error **errp) /* Copy each page to its appropriate location. */ for (int i = 0; i < p->normal_num; i++) { memcpy(p->host + p->normal[i], q->out_buf + page_size * i, page_size); + ramblock_recv_bitmap_set_offset(p->block, p->normal[i]); } return 0; } -- 2.39.5
