diff --git a/arch/arm/lib/backtrace-clang.S b/arch/arm/lib/backtrace-clang.S
index 290c52a60fc6..9a10828992af 100644
--- a/arch/arm/lib/backtrace-clang.S
+++ b/arch/arm/lib/backtrace-clang.S
@@ -107,8 +107,10 @@ ENDPROC(c_backtrace)
 
 /*
  * Switches the current frame to be the frame for dump_stack.
+ * (Only in case of current task using current registers)
  */
-		add	frame, sp, #24		@ switch to false frame
+		cmp	frame, fp
+		addeq	frame, sp, #24		@ switch to false frame
 for_each_frame:	tst	frame, mask		@ Check for address exceptions
 		bne	no_frame