[PATCH 2/2] migration: Set the socket backlog number to reduce the chance of live migration failure

[Li Zhang]

When creating the guest on destination with -incoming ip:port in QEMU command 
line,
the source code that sets the backlog number as the same as multifd channels 
doesn't
get called. So the number of backlog is always 1. It's very easy to cause live 
migration
failure, so a bigger number is preferred to reduce the chance of the failure.

Signed-off-by: Li Zhang <lizhang@suse.de>
---
 migration/socket.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/migration/socket.c b/migration/socket.c
index 05705a32d8..398d4c10fa 100644
--- a/migration/socket.c
+++ b/migration/socket.c
@@ -152,7 +152,7 @@ socket_start_incoming_migration_internal(SocketAddress 
*saddr,
     QIONetListener *listener = qio_net_listener_new();
     MigrationIncomingState *mis = migration_incoming_get_current();
     size_t i;
-    int num = 1;
+    int num = 16;
 
     qio_net_listener_set_name(listener, "migration-socket-listener");
 
-- 
2.31.1