[Mono-bugs] [Bug 465323] New: process_set_current: error creating process handle

bugzilla_noreply at novell.com bugzilla_noreply at novell.com
Mon Jan 12 06:26:43 EST 2009


           Summary: process_set_current: error creating process handle
    Classification: Mono
           Product: Mono: Runtime
           Version: 2.0.x
          Platform: Other
        OS/Version: Other
            Status: NEW
          Severity: Major
          Priority: P5 - None
         Component: io-layer
        AssignedTo: dick at novell.com
        ReportedBy: csvadiraj at novell.com
         QAContact: mono-bugs at lists.ximian.com
          Found By: Other

Created an attachment (id=264462)
 --> (https://bugzilla.novell.com/attachment.cgi?id=264462)
stack trace of the above reported issue

Test app crashes when terminated by pressing CTRL+C on multiple runs.

After the crash the app fails to run.

The behavior is seen only with mono-2.0.1

Intention of this app?

Trying to write a test case to reproduce the issue with mono2.0 throwing
sharing violation on file error. Instead hit this issue.

Stack trace, gdb trace attached

Steps to reproduce

1. Compile the app.
2. run the exe on mono-2.0.1(shipped with sle-11)
3. Kill the process while it is running using CTRL+C
4. repeat step 2 and 3.
5. after 3-4 time it dumps.
6. once the dump is thrown, you will not be able to run app. Step 2 keeps
failing continuously. 

Same steps when executed on mono-1.2.2 (shipped with SLE-10) will not have any

class procStart

    private static int getPid(string processName)
        int pid = 0;
        ProcessStartInfo pinfo = new ProcessStartInfo("/bin/pidof");
        pinfo.Arguments = processName;
        pinfo.UseShellExecute = false;
        pinfo.RedirectStandardOutput = true;
        Process p = new Process();
        p.StartInfo = pinfo;
        using (StreamReader pstream = p.StandardOutput){
                string exitcode = pstream.ReadLine();
                try {
                pid = Convert.ToInt32(exitcode);
                catch(Exception e){

        return pid;
    public static void Main(string[] args)
        int i = 0;
            Console.WriteLine("*** {0} *** {1}",getPid("gnome-terminal"), i++);
            using (StreamWriter stream = new StreamWriter("/tmp/pid.txt")){
                stream.WriteLine("Hello World") ;

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