diff --git a/arch/arm/src/armv7-a/arm_assert.c b/arch/arm/src/armv7-a/arm_assert.c
index b5f959016e..eab0e3252d 100644
--- a/arch/arm/src/armv7-a/arm_assert.c
+++ b/arch/arm/src/armv7-a/arm_assert.c
@@ -200,6 +200,13 @@ static void up_dumpstate(void)
    * stack?
    */
 
+  if (sp > istackbase || sp <= istackbase - istacksize)
+    {
+      if (up_interrupt_context())
+        {
+          lldbg("ERROR: Stack pointer is not within interrupt stack\n");
+        }
+    }
   if (sp <= istackbase && sp > istackbase - istacksize)
     {
       /* Yes.. dump the interrupt stack */
@@ -231,9 +238,12 @@ static void up_dumpstate(void)
 
   if (sp > ustackbase || sp <= ustackbase - ustacksize)
     {
-#if !defined(CONFIG_ARCH_INTERRUPTSTACK) || CONFIG_ARCH_INTERRUPTSTACK < 4
-      lldbg("ERROR: Stack pointer is not within allocated stack\n");
+#if defined(CONFIG_ARCH_INTERRUPTSTACK) && CONFIG_ARCH_INTERRUPTSTACK > 3
+      if (!up_interrupt_context())
 #endif
+        {
+          lldbg("ERROR: Stack pointer is not within allocated stack\n");
+        }
     }
   else
     {
diff --git a/arch/arm/src/sama5/sam_udphs.c b/arch/arm/src/sama5/sam_udphs.c
index 16a214168d..501f3cbc93 100644
--- a/arch/arm/src/sama5/sam_udphs.c
+++ b/arch/arm/src/sama5/sam_udphs.c
@@ -956,7 +956,8 @@ static void sam_dma_wrsetup(struct sam_usbdev_s *priv, struct sam_ep_s *privep,
 
   /* How many bytes remain to be transferred in the request? */
 
-  remaining = privreq->req.len - privreq->req.xfrd;
+  remaining = (int)privreq->req.len - (int)privreq->req.xfrd;
+  DEBUGASSERT(remaining >= 0 && remaining <= (int)privreq->req.len);
 
   /* If there are no bytes to send, then send a zero length packet */
 
@@ -1020,8 +1021,9 @@ static void sam_dma_rdsetup(struct sam_usbdev_s *priv,
 
   /* How many more bytes can we append to the request buffer? */
 
-  remaining = privreq->req.len - privreq->req.xfrd;
-  DEBUGASSERT(remaining > 0 && privep->epstate == UDPHS_EPSTATE_RECEIVING);
+  remaining = (int)privreq->req.len - (int)privreq->req.xfrd;
+  DEBUGASSERT(remaining > 0 && remaining <= (int)privreq->req.len &&
+              privep->epstate == UDPHS_EPSTATE_RECEIVING);
 
   /* Clip the DMA transfer size to the size available in the user buffer */