diff options
Diffstat (limited to 'kernel/kalloc.c')
-rw-r--r-- | kernel/kalloc.c | 4 |
1 files changed, 3 insertions, 1 deletions
diff --git a/kernel/kalloc.c b/kernel/kalloc.c index afadb02..d72e0ab 100644 --- a/kernel/kalloc.c +++ b/kernel/kalloc.c @@ -55,8 +55,9 @@ kfree(void *pa) // Fill with junk to catch dangling refs. memset(pa, 1, PGSIZE); - acquire(&kmem.lock); r = (struct run*)pa; + + acquire(&kmem.lock); r->next = kmem.freelist; kmem.freelist = r; release(&kmem.lock); @@ -75,6 +76,7 @@ kalloc(void) if(r) kmem.freelist = r->next; release(&kmem.lock); + if(r) memset((char*)r, 5, PGSIZE); // fill with junk return (void*)r; |