--- a/src/bbsecondary.c~	2017-11-29 16:06:29.128080328 +0300
+++ b/src/bbsecondary.c	2017-11-29 16:06:36.982079905 +0300
@@ -153,6 +153,7 @@ bool start_secondary(bool need_secondary
       "-sharevts",
       "-nolisten", "tcp",
       "-noreset",
+      "-noxdrvswitch",
       "-verbose", "3",
       "-isolateDevice", pci_id,
       "-modulepath", bb_config.mod_path, // keep last