diff --git a/src/mzscheme/gc2/blame_the_child.c b/src/mzscheme/gc2/blame_the_child.c
index 2b390f6ff8..ca40591282 100644
--- a/src/mzscheme/gc2/blame_the_child.c
+++ b/src/mzscheme/gc2/blame_the_child.c
@@ -15,7 +15,7 @@ inline static void BTC_register_new_thread(void *t, void *c)
   NewGC *gc = GC_get_GC();
   GC_Thread_Info *work;
 
-  work = (GC_Thread_Info *)malloc(sizeof(GC_Thread_Info));
+  work = (GC_Thread_Info *)ofm_malloc(sizeof(GC_Thread_Info));
   ((Scheme_Thread *)t)->gc_info = work;
   work->owner = current_owner(gc, (Scheme_Custodian *)c);
   work->thread = t;
@@ -86,7 +86,7 @@ inline static int create_blank_owner_set(NewGC *gc)
 
   for (i = 1; i < curr_size; i++) {
     if (!owner_table[i]) {
-      owner_table[i] = malloc(sizeof(OTEntry));
+      owner_table[i] = ofm_malloc(sizeof(OTEntry));
       bzero(owner_table[i], sizeof(OTEntry));
       return i;
     }
@@ -101,7 +101,7 @@ inline static int create_blank_owner_set(NewGC *gc)
   }
   gc->owner_table_size = curr_size;
 
-  naya = (OTEntry **)malloc(curr_size * sizeof(OTEntry*));
+  naya = (OTEntry **)ofm_malloc(curr_size * sizeof(OTEntry*));
   memcpy(naya, owner_table, old_size*sizeof(OTEntry*));
   gc->owner_table = owner_table = naya;
   bzero(((char*)owner_table) + (sizeof(OTEntry*) * old_size),
@@ -471,7 +471,7 @@ inline static void BTC_add_account_hook(int type,void *c1,void *c2,unsigned long
   }
 
   if(!work) {
-    work = malloc(sizeof(AccountHook));
+    work = ofm_malloc(sizeof(AccountHook));
     work->type = type; 
     work->c1 = c1; 
     work->c2 = c2; 
diff --git a/src/mzscheme/gc2/compact.c b/src/mzscheme/gc2/compact.c
index f54e1c3ce6..cfdbde2fa0 100644
--- a/src/mzscheme/gc2/compact.c
+++ b/src/mzscheme/gc2/compact.c
@@ -20,6 +20,7 @@
 static THREAD_LOCAL CompactGC *GC;
 #define GCTYPE CompactGC
 #define GC_get_GC() (GC)
+#define ofm_malloc malloc
 
 /**************** Configuration ****************/
 
diff --git a/src/mzscheme/gc2/immobile_boxes.c b/src/mzscheme/gc2/immobile_boxes.c
index b8b79f35c3..b67d27492f 100644
--- a/src/mzscheme/gc2/immobile_boxes.c
+++ b/src/mzscheme/gc2/immobile_boxes.c
@@ -4,7 +4,7 @@
 void **GC_malloc_immobile_box(void *p)
 {
   GCTYPE *gc = GC_get_GC();
-  GC_Immobile_Box *ib = malloc(sizeof(GC_Immobile_Box));
+  GC_Immobile_Box *ib = ofm_malloc(sizeof(GC_Immobile_Box));
   if(!ib) GCERR((GCOUTF, "Couldn't allocate space for immobile box!\n"));
   ib->p     = p; 
   ib->next  = gc->immobile_boxes;
diff --git a/src/mzscheme/gc2/newgc.c b/src/mzscheme/gc2/newgc.c
index 29d7fab540..862837c137 100644
--- a/src/mzscheme/gc2/newgc.c
+++ b/src/mzscheme/gc2/newgc.c
@@ -154,6 +154,12 @@ static void out_of_memory()
   abort();
 }
 
+static void *ofm_malloc(size_t size) {
+  void *ptr = malloc(size);
+  if (!ptr) out_of_memory();
+  return ptr;
+}
+
 inline static void check_used_against_max(NewGC *gc, size_t len) 
 {
   gc->used_pages += (len / APAGE_SIZE) + (((len % APAGE_SIZE) == 0) ? 0 : 1);
@@ -186,14 +192,20 @@ inline static void check_used_against_max(NewGC *gc, size_t len)
 
 static void *malloc_pages(NewGC *gc, size_t len, size_t alignment)
 {
+  void *ptr;
   check_used_against_max(gc, len);
-  return vm_malloc_pages(gc->vm, len, alignment, 0);
+  ptr = vm_malloc_pages(gc->vm, len, alignment, 0);
+  if (!ptr) out_of_memory();
+  return ptr;
 }
 
 static void *malloc_dirty_pages(NewGC *gc, size_t len, size_t alignment)
 {
+  void *ptr;
   check_used_against_max(gc, len);
-  return vm_malloc_pages(gc->vm, len, alignment, 1);
+  ptr = vm_malloc_pages(gc->vm, len, alignment, 1);
+  if (!ptr) out_of_memory();
+  return ptr;
 }
 
 static void free_pages(NewGC *gc, void *p, size_t len)
@@ -381,8 +393,7 @@ static size_t round_to_apage_size(size_t sizeb)
 static struct mpage *malloc_mpage()
 {
   struct mpage *page;
-  page = malloc(sizeof(struct mpage));
-  if (!page) out_of_memory();
+  page = ofm_malloc(sizeof(struct mpage));
   memset(page, 0, sizeof(struct mpage));
   return page;
 }
@@ -606,7 +617,7 @@ void *GC_malloc_one_tagged(size_t s)              { return allocate(s, PAGE_TAGG
 void *GC_malloc_one_xtagged(size_t s)             { return allocate(s, PAGE_XTAGGED); }
 void *GC_malloc_array_tagged(size_t s)            { return allocate(s, PAGE_TARRAY); }
 void *GC_malloc_atomic(size_t s)                  { return allocate(s, PAGE_ATOMIC); }
-void *GC_malloc_atomic_uncollectable(size_t s)    { void *p = malloc(s); memset(p, 0, s); return p; }
+void *GC_malloc_atomic_uncollectable(size_t s)    { void *p = ofm_malloc(s); memset(p, 0, s); return p; }
 void *GC_malloc_allow_interior(size_t s)          { return allocate_big(s, PAGE_ARRAY); }
 void *GC_malloc_atomic_allow_interior(size_t s)   { return allocate_big(s, PAGE_ATOMIC); }
 void *GC_malloc_tagged_allow_interior(size_t s)   { return allocate_big(s, PAGE_TAGGED); }
@@ -737,7 +748,7 @@ static void init_debug_file(void)
      collections += 1;
      */
 
-  char *filename = malloc(8 * sizeof(char));
+  char *filename = ofm_malloc(8 * sizeof(char));
 
   filename[0] = 'g'; filename[1] = 'c'; filename[2] = 'l';
   filename[3] = 'o'; filename[4] = 'g';
@@ -1172,7 +1183,7 @@ typedef struct MarkSegment {
 static THREAD_LOCAL MarkSegment *mark_stack = NULL;
 
 inline static MarkSegment* mark_stack_create_frame() {
-  MarkSegment *mark_frame = (MarkSegment*)malloc(STACK_PART_SIZE);
+  MarkSegment *mark_frame = (MarkSegment*)ofm_malloc(STACK_PART_SIZE);
   mark_frame->next = NULL;
   mark_frame->top  = PPTR(&(mark_frame->stop_here));
   mark_frame->end  = PPTR(NUM(mark_frame) + STACK_PART_SIZE);
@@ -1332,15 +1343,15 @@ void GC_write_barrier(void *p)
 
 void NewGC_initialize(NewGC *newgc) {
   memset(newgc, 0, sizeof(NewGC));
-  newgc->mark_table = malloc(NUMBER_OF_TAGS * sizeof (Mark_Proc)); 
-  newgc->fixup_table = malloc(NUMBER_OF_TAGS * sizeof (Fixup_Proc)); 
+  newgc->mark_table = ofm_malloc(NUMBER_OF_TAGS * sizeof (Mark_Proc)); 
+  newgc->fixup_table = ofm_malloc(NUMBER_OF_TAGS * sizeof (Fixup_Proc)); 
 #ifdef SIXTY_FOUR_BIT_INTEGERS
-  newgc->page_maps = malloc(PAGEMAP64_LEVEL1_SIZE * sizeof (mpage***)); 
+  newgc->page_maps = ofm_malloc(PAGEMAP64_LEVEL1_SIZE * sizeof (mpage***)); 
 #else
-  newgc->page_maps = malloc(PAGEMAP32_SIZE * sizeof (mpage*)); 
+  newgc->page_maps = ofm_malloc(PAGEMAP32_SIZE * sizeof (mpage*)); 
 #endif
   newgc->vm = vm_create();
-  newgc->protect_range = malloc(sizeof(Page_Range));
+  newgc->protect_range = ofm_malloc(sizeof(Page_Range));
   
   newgc->generations_available = 1;
   newgc->last_full_mem_use = (20 * 1024 * 1024);
@@ -1355,7 +1366,7 @@ void GC_init_type_tags(int count, int pair, int mutable_pair, int weakbox, int e
     NewGC *gc;
     initialized = 1;
 
-    gc = malloc(sizeof(NewGC));
+    gc = ofm_malloc(sizeof(NewGC));
     GC = gc;
     NewGC_initialize(gc);
 
diff --git a/src/mzscheme/gc2/roots.c b/src/mzscheme/gc2/roots.c
index c6ae6db5e5..e179792be6 100644
--- a/src/mzscheme/gc2/roots.c
+++ b/src/mzscheme/gc2/roots.c
@@ -15,7 +15,7 @@ static void grow_roots(Roots *roots) {
   unsigned long *new_roots;
 
   roots->size = roots->size ? ( 2 * roots->size ) : 500;
-  new_roots   = (unsigned long *)malloc(sizeof(unsigned long) * (roots->size + 1));
+  new_roots   = (unsigned long *)ofm_malloc(sizeof(unsigned long) * (roots->size + 1));
 
   memcpy((void *)new_roots, (void *)roots->roots, sizeof(unsigned long) * roots->count);
 
diff --git a/src/mzscheme/gc2/vm.c b/src/mzscheme/gc2/vm.c
index e1d6f52c2c..8d534e6918 100644
--- a/src/mzscheme/gc2/vm.c
+++ b/src/mzscheme/gc2/vm.c
@@ -30,11 +30,11 @@ typedef struct VM {
 } VM;
 
 static VM *vm_create() {
-  VM *vm = malloc(sizeof(VM));
+  VM *vm = ofm_malloc(sizeof(VM));
   memset(vm, 0, sizeof(VM));
 #if !( defined(_WIN32) || defined(OSKIT) )
   #define BLOCKFREE_CACHE_SIZE 96
-  vm->freeblocks = malloc(sizeof(FreeBlock) * BLOCKFREE_CACHE_SIZE);
+  vm->freeblocks = ofm_malloc(sizeof(FreeBlock) * BLOCKFREE_CACHE_SIZE);
 #endif
   return vm;
 }