[Mono-bugs] [Bug 34963][Wis] Changed - Mono leaks lock/monitor handles
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bugzilla-daemon@rocky.ximian.com
4 Dec 2002 01:21:40 -0000
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Changed by tum@veridicus.com.
http://bugzilla.ximian.com/show_bug.cgi?id=34963
--- shadow/34963 Tue Dec 3 12:35:14 2002
+++ shadow/34963.tmp.6970 Tue Dec 3 20:21:40 2002
@@ -1,14 +1,14 @@
Bug#: 34963
Product: Mono/Runtime
Version: unspecified
-OS:
+OS: unknown
OS Details:
Status: NEW
Resolution:
-Severity:
+Severity: Unknown
Priority: Wishlist
Component: misc
AssignedTo: mono-bugs@ximian.com
ReportedBy: tum@veridicus.com
QAContact: mono-bugs@ximian.com
TargetMilestone: ---
@@ -121,6 +121,30 @@
As you can see with the above code, LOTS of unique object locks are
created but the task manager doesn't seem to indicate much of an increase
in native OS handles.
I stumbled on the handle leak by accident and it took a _long_ time to
trace the cause back to the lock :(.
+
+------- Additional Comments From tum@veridicus.com 2002-12-03 20:21 -------
+I've had time to trace the source of the bug in the runtime. It
+appears that mon_finalize (thread.c) fails to delete a critical
+section (waiters_count_lock).
+
+Here's what I believe the fix should be. I can't test this cause
+the CVS build is broken :(.
+
+
+static void mon_finalize (void *o, void *unused)
+{
+ MonoThreadsSync *mon=(MonoThreadsSync *)o;
+
+#ifdef THREAD_LOCK_DEBUG
+ g_message (G_GNUC_PRETTY_FUNCTION ": Finalizing sync");
+#endif
+
+ CloseHandle (mon->monitor);
+ CloseHandle (mon->sema);
+ CloseHandle (mon->waiters_done);
+ DeleteCriticalSection(&mon->waiters_count_lock);
+}
+