From: Nadeshiko Manju <me@manjusaka.me>
Date: Fri, 25 Apr 2025 00:40:01 +0000 (+0800)
Subject: gh-131591: Reset RemoteDebuggerSuupport state after fork (#132793)
X-Git-Tag: v3.14.0b1~312
X-Git-Url: http://git.ipfire.org/gitweb.cgi?a=commitdiff_plain;h=3a39e33ee48b3d6630288109ccd87172e8c5c631;p=thirdparty%2FPython%2Fcpython.git

gh-131591: Reset RemoteDebuggerSuupport state after fork (#132793)

Co-authored-by: Pablo Galindo Salgado <Pablogsal@gmail.com>
---

diff --git a/Misc/NEWS.d/next/Core_and_Builtins/2025-04-22-19-00-03.gh-issue-131591.CdEqBr.rst b/Misc/NEWS.d/next/Core_and_Builtins/2025-04-22-19-00-03.gh-issue-131591.CdEqBr.rst
new file mode 100644
index 000000000000..e237649e5920
--- /dev/null
+++ b/Misc/NEWS.d/next/Core_and_Builtins/2025-04-22-19-00-03.gh-issue-131591.CdEqBr.rst
@@ -0,0 +1 @@
+Reset any :pep:`768` remote debugging pending call in children after :func:`os.fork` calls.
diff --git a/Modules/posixmodule.c b/Modules/posixmodule.c
index b7300def8dc7..8d7131b2eacf 100644
--- a/Modules/posixmodule.c
+++ b/Modules/posixmodule.c
@@ -677,6 +677,14 @@ PyOS_AfterFork_Parent(void)
     run_at_forkers(interp->after_forkers_parent, 0);
 }
 
+static void
+reset_remotedebug_data(PyThreadState *tstate)
+{
+    tstate->remote_debugger_support.debugger_pending_call = 0;
+    memset(tstate->remote_debugger_support.debugger_script_path, 0, MAX_SCRIPT_PATH_SIZE);
+}
+
+
 void
 PyOS_AfterFork_Child(void)
 {
@@ -710,6 +718,8 @@ PyOS_AfterFork_Child(void)
         goto fatal_error;
     }
 
+    reset_remotedebug_data(tstate);
+
     // Remove the dead thread states. We "start the world" once we are the only
     // thread state left to undo the stop the world call in `PyOS_BeforeFork`.
     // That needs to happen before `_PyThreadState_DeleteList`, because that