diff --git a/debug/gdbserver.py b/debug/gdbserver.py
index 5450adb1e..ebc591c19 100755
--- a/debug/gdbserver.py
+++ b/debug/gdbserver.py
@@ -1415,7 +1415,7 @@ def check_triggers(self, tdata1_lsbs, tdata2):
         i = 0
         for i in range(16):
             tdata1 = self.gdb.p(f"(({xlen_type} *)&data)[{2*i}]")
-            if tdata1 == 0:
+            if (tdata1 == 0) or (tdata1 >> (self.hart.xlen-4) == 15):
                 break
             tdata2 = self.gdb.p(f"(({xlen_type} *)&data)[{2*i+1}]")