diff --git a/src/nvme/tree.c b/src/nvme/tree.c
index 00cf96f..633828f 100644
--- a/src/nvme/tree.c
+++ b/src/nvme/tree.c
@@ -2402,13 +2402,29 @@ static void nvme_ns_parse_descriptors(struct nvme_ns *n,
 	}
 }
 
+#define ROUND_UP(N, S) ((((N) + (S) - 1) / (S)) * (S))
+
+void *_nvme_alloc (size_t len)
+{
+	size_t _len = ROUND_UP (len, 0x1000);
+	void *p;
+
+	if (posix_memalign ((void *) &p, getpagesize (), _len))
+		return NULL;
+
+	memset (p, 0, _len);
+	return p;
+}
+
 static int nvme_ns_init(struct nvme_ns *n)
 {
 	struct nvme_id_ns ns = { };
-	uint8_t buffer[NVME_IDENTIFY_DATA_SIZE] = { };
-	struct nvme_ns_id_desc *descs = (void *)buffer;
 	uint8_t flbas;
 	int ret;
+	struct nvme_ns_id_desc *descs = _nvme_alloc(NVME_IDENTIFY_DATA_SIZE);
+
+	if (!descs)
+		return 0;
 
 	ret = nvme_ns_identify(n, &ns);
 	if (ret)
@@ -2424,6 +2440,8 @@ static int nvme_ns_init(struct nvme_ns *n)
 	if (!nvme_ns_identify_descs(n, descs))
 		nvme_ns_parse_descriptors(n, descs);
 
+	free(descs);
+
 	return 0;
 }