diff --git a/Makefile b/Makefile
index 0977128..b97c9c4 100644
--- a/Makefile
+++ b/Makefile
@@ -2,7 +2,7 @@
 AS := nasm
 CC := clang
 LD := lld
-DAS := llvm-objdump
+DAS := llvm-objdump-6.0
 
 ifneq '$(AS_ENV)' ''
 AS := $(AS_ENV)
@@ -72,16 +72,9 @@ PREP_FLAGS = -E \
 			 -I$(INC_COMMON) \
              $(C_FLAGS_$(MOD))
 
-# generic generate dependency flags used for target
-# each submodule can append to this flag
-GDEP_FLAGS = $(PREP_FLAGS) \
-			 -MMD \
-			 -MT $@
-
 MKDIR = mkdir -p $(dir $@)
 COMP = $(CC) $(C_FLAGS) -o $@ $<
 COMPAS = $(AS) $(AS_FLAGS) -o $@ $<
 PREP = $(CC) $(PREP_FLAGS) $< > $@
-GDEP = $(CC) $(GDEP_FLAGS) -MF $(addsuffix .d, $@) $< > /dev/null
 
 include Rules.top
diff --git a/Rules.top b/Rules.top
index 7258941..6d593d9 100644
--- a/Rules.top
+++ b/Rules.top
@@ -46,7 +46,7 @@ iso: $(TGT) $(GRUB_CFG)
 	mkdir -p $(OUT)/temp/boot/grub
 	cp $(TGT) $(OUT)/temp/secX/
 	cp $(GRUB_CFG) $(OUT)/temp/boot/grub/
-	grub-mkrescue -o $(ISO) $(OUT)/temp
+	grub-mkrescue -d /usr/lib/grub/i386-pc -o $(ISO) $(OUT)/temp
 
 .PHONY: clean
 clean:
diff --git a/kernel/inc/lb/htable.h b/kernel/inc/lb/htable.h
index 7139e92..3295081 100644
--- a/kernel/inc/lb/htable.h
+++ b/kernel/inc/lb/htable.h
@@ -1,5 +1,5 @@
 #include "cdef.h"
-#include "dlist.h"
+#include "llist.h"
 
 struct htable_node;
 
@@ -15,13 +15,13 @@ struct htable_node
 struct htable
 {
     uint32 bkts;
-    struct dlist *buf;
+    struct llist *buf;
     htable_cmp_fp cmp_fp;
     htable_hash_fp hash_fp;
 };
 
 void
-htable_init(struct htable* table, htable_cmp_fp cmp_fp, htable_hash_fp hash_fp, struct dlist *buf, uint32 bkts);
+htable_init(struct htable* table, htable_cmp_fp cmp_fp, htable_hash_fp hash_fp, struct llist *buf, uint32 bkts);
 
 /**
  * returns the overwritten object
diff --git a/kernel/inc/lb/dlist.h b/kernel/inc/lb/llist.h
similarity index 60%
rename from kernel/inc/lb/dlist.h
rename to kernel/inc/lb/llist.h
index 573fb2c..2593161 100644
--- a/kernel/inc/lb/dlist.h
+++ b/kernel/inc/lb/llist.h
@@ -8,7 +8,7 @@ struct dlist_node
     struct dlist_node *next;
 };
 
-struct dlist
+struct llist
 {
     struct dlist_node *head;
     struct dlist_node *tail;
@@ -16,17 +16,17 @@ struct dlist
 };
 
 void
-lb_llist_init(struct dlist *list);
+lb_llist_init(struct llist *list);
 
 uint32
-lb_llist_size(struct dlist *list);
+lb_llist_size(struct llist *list);
 
 void
-lb_llist_insert(struct dlist *list, struct dlist_node *cur_node, struct dlist_node *new_node);
+lb_llist_insert(struct llist *list, struct dlist_node *cur_node, struct dlist_node *new_node);
 
 
 struct dlist_node *
-lb_llist_remove(struct dlist *list, struct dlist_node *node);
+lb_llist_remove(struct llist *list, struct dlist_node *node);
 
 
 struct dlist_node *
@@ -38,8 +38,8 @@ lb_llist_prev(struct dlist_node *node);
 
 
 struct dlist_node *
-lb_llist_first(struct dlist *list);
+lb_llist_first(struct llist *list);
 
 
 struct dlist_node *
-lb_llist_last(struct dlist *list);
+lb_llist_last(struct llist *list);
diff --git a/kernel/ke/main.c b/kernel/ke/main.c
index 315de7f..7d19c8b 100644
--- a/kernel/ke/main.c
+++ b/kernel/ke/main.c
@@ -21,7 +21,7 @@ kmain(struct boot_info *boot_info)
     }
 
     // initialize memory manager
-    status = mm_pmm_init(boot_info);
+    //status = mm_pmm_init(boot_info);
     if (!SX_SUCCESS(status))
     {
         goto end;
diff --git a/kernel/lb/htable.c b/kernel/lb/htable.c
index 5521206..f620909 100644
--- a/kernel/lb/htable.c
+++ b/kernel/lb/htable.c
@@ -1,10 +1,10 @@
 #include "clib.h"
 #include "cdef.h"
 #include "lb/htable.h"
-#include "lb/dlist.h"
+#include "lb/llist.h"
 
 void
-htable_init(struct htable *table, htable_cmp_fp cmp_fp, htable_hash_fp hash_fp, struct dlist *buf, uint32 bkts)
+htable_init(struct htable *table, htable_cmp_fp cmp_fp, htable_hash_fp hash_fp, struct llist *buf, uint32 bkts)
 {
     table->hash_fp = hash_fp;
     table->cmp_fp = cmp_fp;
@@ -20,7 +20,7 @@ struct htable_node *
 htable_insert(struct htable *table, struct htable_node *entry)
 {
     uint32 hash = table->hash_fp(entry) % table->bkts;
-    struct dlist *hlist = &table->buf[hash];
+    struct llist *hlist = &table->buf[hash];
 
     struct htable_node *ret = NULL;
     struct dlist_node *lnode = lb_llist_first(hlist);
diff --git a/kernel/lb/dlist.c b/kernel/lb/llist.c
similarity index 87%
rename from kernel/lb/dlist.c
rename to kernel/lb/llist.c
index 44011b2..2959a7d 100644
--- a/kernel/lb/dlist.c
+++ b/kernel/lb/llist.c
@@ -1,4 +1,4 @@
-#include "lb/dlist.h"
+#include "lb/llist.h"
 
 static void
 llist_node_init(struct dlist_node *node)
@@ -9,7 +9,7 @@ llist_node_init(struct dlist_node *node)
 
 
 void
-lb_llist_init(struct dlist *list)
+lb_llist_init(struct llist *list)
 {
     list->head = NULL;
     list->tail = NULL;
@@ -18,13 +18,13 @@ lb_llist_init(struct dlist *list)
 
 
 uint32
-lb_llist_size(struct dlist *list)
+lb_llist_size(struct llist *list)
 {
     return list->size;
 }
 
 void
-lb_llist_insert(struct dlist *list, struct dlist_node *cur_node, struct dlist_node *new_node)
+lb_llist_insert(struct llist *list, struct dlist_node *cur_node, struct dlist_node *new_node)
 {
     struct dlist_node *left_node;
     struct dlist_node *right_node;
@@ -92,7 +92,7 @@ lb_llist_insert(struct dlist *list, struct dlist_node *cur_node, struct dlist_no
  * returns the next node
  */
 struct dlist_node *
-lb_llist_remove(struct dlist *list, struct dlist_node *node)
+lb_llist_remove(struct llist *list, struct dlist_node *node)
 {
     struct dlist_node *ret;
 
@@ -142,14 +142,14 @@ lb_llist_prev(struct dlist_node *node)
 
 
 struct dlist_node *
-lb_llist_first(struct dlist *list)
+lb_llist_first(struct llist *list)
 {
     return list->head;
 }
 
 
 struct dlist_node *
-lb_llist_last(struct dlist *list)
+lb_llist_last(struct llist *list)
 {
     return list->tail;
 }
diff --git a/kernel/lb/ssalloc.c b/kernel/lb/ssalloc.c
index c98b9c1..4a2e90f 100644
--- a/kernel/lb/ssalloc.c
+++ b/kernel/lb/ssalloc.c
@@ -1,6 +1,6 @@
 #include "cdef.h"
 #include "mlayout.h"
-#include "lb/dlist.h"
+#include "lb/llist.h"
 
 /**
  * Simplified Slab Allocator
@@ -17,9 +17,9 @@ struct ssalloc_page_desc
 
 struct ssalloc_obj_desc
 {
-    struct dlist free_list;
-    struct dlist full_list;
-    struct dlist empty_list;
+    struct llist free_list;
+    struct llist full_list;
+    struct llist empty_list;
     usize obj_size;
     uint32 align;
 };
diff --git a/kernel/mm/Rules.mk b/kernel/mm/Rules.mk
index e9cedb3..9440842 100644
--- a/kernel/mm/Rules.mk
+++ b/kernel/mm/Rules.mk
@@ -1,6 +1,7 @@
 include $(MK)/prologue.mk
 
-SRC_$(d) := $(d)/pmm.c
+SRC_$(d) :=
+#$(d)/pmm.c
 
 include $(MK)/stdrules.mk
 
diff --git a/kernel/mm/pmm.c b/kernel/mm/pmm.c
index 40cbc3b..4a3ddbc 100644
--- a/kernel/mm/pmm.c
+++ b/kernel/mm/pmm.c
@@ -1,7 +1,7 @@
 #include "mm/pmm.h"
 
 #include "lb/atree.h"
-#include "lb/dlist.h"
+#include "lb/llist.h"
 #include "ke/rww_lock.h"
 #include "clib.h"
 #include "ke/intr.h"
@@ -15,7 +15,7 @@ struct phys_page_desc
 };
 
 static struct a_tree active_tree;
-static struct dlist free_list;
+static struct llist free_list;
 static struct rww_lock lock;
 
 /*
@@ -111,7 +111,7 @@ k_status mm_alloc_page(uintptr *out)
 
     struct dlist_node *node = NULL;
     struct phys_page_desc *page_info = NULL;
-    node = lb_llist_pop_front(&free_list);
+    //node = lb_dlist_pop_front(&free_list);
     if (node != NULL)
     {
         page_info = OBTAIN_STRUCT_ADDR(node,
@@ -186,7 +186,7 @@ k_status mm_free_page(uintptr base)
     if (node != NULL)
     {
         page_info = OBTAIN_STRUCT_ADDR(node, struct phys_page_desc, tree_node);
-        lb_llist_push_back(&free_list, &page_info->free_list_node);
+        //lb_llist_push_back(&free_list, &page_info->free_list_node);
     }
     else
     {
diff --git a/mk/stdrules.mk b/mk/stdrules.mk
index f9968a1..9f5674e 100644
--- a/mk/stdrules.mk
+++ b/mk/stdrules.mk
@@ -16,7 +16,6 @@ $(OUT)/$(d)/%.o: MOD:=$(MOD)
 $(OBJ_$(d)): $(OUT)/$(d)/%.o: $(d)/%.c
 	$(MKDIR)
 	$(COMP)
-	$(GDEP)
 
 $(OUT)/$(d)/%.a: MOD:=$(MOD)
 
@@ -27,7 +26,6 @@ $(OBJAS_$(d)): $(OUT)/$(d)/%.a: $(d)/%.asm
 $(OBJIN_$(d)): $(OUT)/$(d)/%: $(d)/%.in
 	$(MKDIR)
 	$(PREP)
-	$(GDEP)
 
 # append all OBJECTS to OBJ
 OBJ := $(OBJ) $(OBJ_$(d)) $(OBJAS_$(d))
diff --git a/test/llist_test.c b/test/llist_test.c
index d315c93..6fe7c23 100644
--- a/test/llist_test.c
+++ b/test/llist_test.c
@@ -1,6 +1,6 @@
 #include "test_main.h"
 #include "test_case.h"
-#include "lb/dlist.h"
+#include "lb/llist.h"
 #include "clib.h"
 #include <stdio.h>