[Mono-bugs] [Bug 77736][Nor] New - WaitForExit(int) will sporadically return false immediately, before the timeout

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Changed by faceprint at faceprint.com.

http://bugzilla.ximian.com/show_bug.cgi?id=77736

--- shadow/77736	2006-03-08 17:15:18.000000000 -0500
+++ shadow/77736.tmp.20612	2006-03-08 17:15:18.000000000 -0500
@@ -0,0 +1,69 @@
+Bug#: 77736
+Product: Mono: Class Libraries
+Version: 1.1
+OS: GNU/Linux [Other]
+OS Details: Ubuntu 5.10 running 1.1.13.2
+Status: NEW   
+Resolution: 
+Severity: 
+Priority: Normal
+Component: System
+AssignedTo: mono-bugs at ximian.com                            
+ReportedBy: faceprint at faceprint.com               
+QAContact: mono-bugs at ximian.com
+TargetMilestone: ---
+URL: 
+Cc: 
+Summary: WaitForExit(int) will sporadically return false immediately, before the timeout
+
+Description of Problem:
+
+Process.WaitForExit(int) will sometimes return false immediately, rather
+than waiting for the timeout.  An immediate call to Process.HasExited
+reveals that the process (at least by then) has exited.
+
+
+Steps to reproduce the problem:
+1. Compile and run the following code:
+
+using System;
+using System.Diagnostics;
+
+namespace Foo
+{
+        class Foo
+        {
+                public static void Main()
+                {
+                        for(int i=0; i<10000; i++)
+                        {
+                                Process p = new Process();
+                                p.StartInfo.FileName = "true";
+
+                                p.Start();
+
+                                bool ret = p.WaitForExit(60000);
+
+                                if(!ret && p.HasExited) {
+                                        Console.Error.WriteLine("{0} bug", i);
+                                }
+                        }
+                }
+        }
+}
+
+Actual Results:
+Sporadic output, as WaitForExit returns false immediately, and HasExited is
+true
+
+Expected Results:
+No output, as "true" will most certainly have exited before the 1 minute
+timeout.
+
+
+How often does this happen? 
+Seemingly at random
+
+Additional Information:
+First discovered in CruiseControl.Net 1.1, where the task to call
+subversion to check for updates would "time out"