diff --git a/core/alloc.c b/core/alloc.c
index d1bfaa1..3d61f9f 100644
--- a/core/alloc.c
+++ b/core/alloc.c
@@ -30,6 +30,8 @@ int allocInit(void)
         }
         for (uint i = start; i <= SLUB_SIZE; i++) {
                 if ((ret = allocBookSlab(1U << i, 0))) {
+                        if(ret == -EEXIST)
+                                continue;
                         pr_devel("Fail to allocBookSlab %d for %d \n", ret, (1U << i));
                         return ret;
                 }
@@ -85,7 +87,6 @@ int addSlab(struct slabDesc **desc, size_t size, int selfContained)
         list_singleton(slab, slab);
         slab->page    = (vaddr_t)alloc;
         slab->full    = 0;
-        slab->size    = size;
         (*desc)->size = size;
         // pr_devel("got page %d for size %d first %d", alloc, size, (*desc)->slab.freeEl);
         return formatPage(&(*desc)->slab, size, selfContained);
@@ -112,7 +113,6 @@ int addSlabEntry(struct slabEntry **desc, size_t size, int selfContained)
         list_singleton(*desc, *desc);
         (*desc)->page = (vaddr_t)alloc;
         (*desc)->full = 0;
-        (*desc)->size = size;
         // pr_devel("got page %d for size %d first %d", alloc, size, (*desc)->freeEl);
         return formatPage((*desc), size, selfContained);
 }
@@ -137,7 +137,7 @@ static void *allocFromSlab(struct slabEntry *slab)
 {
         vaddr_t *next = slab->freeEl;
         if (*next == (vaddr_t)NULL) {
-                pr_devel("Slab @%d for %d is now full\n", slab, slab->size);
+                pr_devel("Slab @%d is now full\n", slab);
                 slab->full = 1;
         } else {
                 slab->freeEl = (void *)(*next);
diff --git a/core/alloc.h b/core/alloc.h
index 4d3058e..216b8f1 100644
--- a/core/alloc.h
+++ b/core/alloc.h
@@ -4,7 +4,6 @@
 
 struct slabEntry {
         vaddr_t page;
-        size_t size;
         void *freeEl;
         char full;
         struct slabEntry *next;