diff --git a/lib/mm/pool-debug.c b/lib/mm/pool-debug.c
index 6c1978a2c..d7530e5cc 100644
--- a/lib/mm/pool-debug.c
+++ b/lib/mm/pool-debug.c
@@ -32,7 +32,8 @@ struct pool *pool_create(size_t chunk_hint)
 	struct pool *mem = dbg_malloc(sizeof(*mem));
 
 	if (!mem) {
-		stack;
+		log_error("Couldn't create memory pool (size %u)",
+			  sizeof(*mem));
 		return NULL;
 	}
 
@@ -79,7 +80,7 @@ static struct block *_new_block(size_t s, unsigned alignment)
 	struct block *b = dbg_malloc(len);
 
 	if (!b) {
-		log_err("Out of memory.");
+		log_err("Out of memory.  Requested %u bytes.", len);
 		return NULL;
 	}
 
diff --git a/lib/mm/pool-fast.c b/lib/mm/pool-fast.c
index 7f2bc8907..4698de473 100644
--- a/lib/mm/pool-fast.c
+++ b/lib/mm/pool-fast.c
@@ -36,7 +36,8 @@ struct pool *pool_create(size_t chunk_hint)
 	struct pool *p = dbg_malloc(sizeof(*p));
 
 	if (!p) {
-		log_error("Couldn't create memory pool");
+		log_error("Couldn't create memory pool (size %u)",
+			  sizeof(*p));
 		return 0;
 	}
 	memset(p, 0, sizeof(*p));
@@ -223,7 +224,7 @@ struct chunk *_new_chunk(struct pool *p, size_t s)
 		p->spare_chunk = 0;
 	} else {
 		if (!(c = dbg_malloc(s))) {
-			log_err("Out of memory.");
+			log_err("Out of memory.  Requested %u bytes.", s);
 			return NULL;
 		}