From 6ceee0a85f9c2d5c80748fcdbbc8ab1323f795b5 Mon Sep 17 00:00:00 2001
From: Rich Chiodo false <rchiodo@microsoft.com>
Date: Tue, 30 Apr 2024 17:14:47 -0700
Subject: [PATCH] Fix stack_trace_len

---
 src/debugpy/server/adapters.py         |  3 ++-
 src/debugpy/server/tracing/__init__.py | 10 +---------
 2 files changed, 3 insertions(+), 10 deletions(-)

diff --git a/src/debugpy/server/adapters.py b/src/debugpy/server/adapters.py
index 47823a5f..2dc94771 100644
--- a/src/debugpy/server/adapters.py
+++ b/src/debugpy/server/adapters.py
@@ -290,7 +290,8 @@ class Adapter:
         if thread is None:
             raise request.isnt_valid(f'Unknown thread with "threadId":{thread_id}')
 
-        stop_frame = None if levels is None else start_frame + levels
+        stop_frame = thread.stack_trace_len() if levels == () or levels == 0 else start_frame + levels
+        log.info(f"stackTrace info {start_frame} {stop_frame}")
         frames = None
         try:
             frames = islice(thread.stack_trace(), start_frame, stop_frame)
diff --git a/src/debugpy/server/tracing/__init__.py b/src/debugpy/server/tracing/__init__.py
index 05c4ab2a..0e6f1ed5 100644
--- a/src/debugpy/server/tracing/__init__.py
+++ b/src/debugpy/server/tracing/__init__.py
@@ -261,15 +261,7 @@ class Thread:
         """
         Returns the total count of frames in this thread's stack.
         """
-        try:
-            with _cvar:
-                python_frame = self.current_frame
-        except ValueError:
-            raise ValueError(f"Can't get frames for inactive Thread({self.id})")
-        try:
-            return len(tuple(traceback.walk_stack(python_frame)))
-        finally:
-            del python_frame
+        return len(list(self.stack_trace()))
 
     def stack_trace(self) -> Iterable["StackFrame"]:
         """