From 8b4e2a08febc8b957b44732dbc7da831479a0005 Mon Sep 17 00:00:00 2001
From: rtm <rtm>
Date: Sat, 1 Jul 2006 21:26:01 +0000
Subject: swtch saves callee-saved registers swtch idles on per-CPU stack, not
 on calling process's stack fix pipe bugs usertest.c tests pipes, fork, exit,
 close

---
 kalloc.c | 5 +++++
 1 file changed, 5 insertions(+)

(limited to 'kalloc.c')

diff --git a/kalloc.c b/kalloc.c
index 5ea38fd..1944508 100644
--- a/kalloc.c
+++ b/kalloc.c
@@ -45,10 +45,15 @@ kfree(char *cp, int len)
   struct run **rr;
   struct run *p = (struct run *) cp;
   struct run *pend = (struct run *) (cp + len);
+  int i;
 
   if(len % PAGE)
     panic("kfree");
 
+  // XXX fill with junk to help debug
+  for(i = 0; i < len; i++)
+    cp[i] = 1;
+
   rr = &freelist;
   while(*rr){
     struct run *rend = (struct run *) ((char *)(*rr) + (*rr)->len);
-- 
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