From: Ben Pfaff <blp@cs.stanford.edu>
Date: Tue, 26 Sep 2006 15:12:05 +0000 (+0000)
Subject: Create idle thread with minimum priority.
X-Git-Url: https://pintos-os.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=689fb08ce1061297cec4264aeb32464ec182fcf3;p=pintos-anon

Create idle thread with minimum priority.
Suggested by Godmar Back.
---

diff --git a/src/threads/thread.c b/src/threads/thread.c
index ba1cae3..938d7f8 100644
--- a/src/threads/thread.c
+++ b/src/threads/thread.c
@@ -109,15 +109,10 @@ thread_init (void)
 void
 thread_start (void) 
 {
-  /* Create the idle thread with maximum priority.  This ensures
-     that it will be scheduled soon after interrupts are enabled.
-     The idle thread will block almost immediately upon
-     scheduling, and subsequently it will never appear on the
-     ready list, so the priority here is otherwise
-     unimportant. */
+  /* Create the idle thread. */
   struct semaphore idle_started;
   sema_init (&idle_started, 0);
-  thread_create ("idle", PRI_MAX, idle, &idle_started);
+  thread_create ("idle", PRI_MIN, idle, &idle_started);
 
   /* Start preemptive thread scheduling. */
   intr_enable ();