Ticket #4399: kernel_slow_debug_output.diff

src/system/kernel/debug/debug.cpp

@@ -1308 +1308 @@
     sBlueScreenOutput = get_safemode_boolean("bluescreen", true);
     sEmergencyKeysEnabled = get_safemode_boolean("emergency_keys",
         sEmergencyKeysEnabled);
-    sDebugScreenEnabled = get_safemode_boolean("debug_screen", false);
+    sDebugScreenEnabled = get_safemode_boolean("debug_screen", true);
 
     if ((sBlueScreenOutput || sDebugScreenEnabled)
         && blue_screen_init() != B_OK)

src/system/kernel/debug/blue_screen.cpp

@@ -461 +461 @@
             // just output the stuff
             switch (c) {
                 case '\n':
+                    spin(1 * 1000 * 1000);
                     next_line();
                     break;
                 case 0x8: