diff --git a/src/ia64/unw_step.c b/src/ia64/unw_step.c
index 5a9a993e..18023ef1 100644
--- a/src/ia64/unw_step.c
+++ b/src/ia64/unw_step.c
@@ -41,6 +41,8 @@ update_frame_state (struct ia64_cursor *c)
   if ((c->pi.flags & IA64_FLAG_SIGTRAMP) != 0)
     {
       ret = ia64_get (c, c->sp + 0x10 + SIGFRAME_ARG2_OFF, &c->sigcontext_loc);
+      debug (100, "%s: sigcontext_loc=%lx (ret=%d)\n",
+	     __FUNCTION__, c->sigcontext_loc, ret);
       if (ret < 0)
 	return ret;