diff --git a/src/linux/main.c b/src/linux/main.c
index c8cb3dfd..f9ea3f6d 100644
--- a/src/linux/main.c
+++ b/src/linux/main.c
@@ -4,10 +4,11 @@
 //
 // This file may be distributed under the terms of the GNU GPLv3 license.
 
-#include </usr/include/sched.h> // sched_setscheduler
+#include </usr/include/sched.h> // sched_setscheduler sched_get_priority_max
 #include <stdio.h> // fprintf
 #include <string.h> // memset
 #include <unistd.h> // getopt
+#include <sys/mman.h> // mlockall MCL_CURRENT MCL_FUTURE
 #include "board/misc.h" // console_sendf
 #include "command.h" // DECL_CONSTANT
 #include "internal.h" // console_setup
@@ -25,12 +26,18 @@ realtime_setup(void)
 {
     struct sched_param sp;
     memset(&sp, 0, sizeof(sp));
-    sp.sched_priority = 1;
+    sp.sched_priority = sched_get_priority_max(SCHED_FIFO) / 2;
     int ret = sched_setscheduler(0, SCHED_FIFO, &sp);
     if (ret < 0) {
         report_errno("sched_setscheduler", ret);
         return -1;
     }
+    // Lock ourselves into memory
+    ret = mlockall(MCL_CURRENT | MCL_FUTURE);
+    if (ret) {
+        report_errno("mlockall", ret);
+        return -1;
+    }
     return 0;
 }