c#中进程的StackOverflowException

我有一个进程，它在一个控制台应用程序中运行，它永远运行。

几天后，应用程序崩溃与StackOverflowException。

应用程序的本质是我用FFMpeg.exe启动进程并创建视频流的截图。它的效果很好，但只有几天的时间。

我很确定它与FFMpeg或一些内部进程的东西的处置有关。

代码

using ( Process ffmpegProcess = new Process() ) {
    //arguments for running ffmpeg
    ffmpegProcess.StartInfo.UseShellExecute = false;
    ffmpegProcess.StartInfo.CreateNoWindow = true;
    ffmpegProcess.StartInfo.RedirectStandardOutput = true;
    //specific for our screenshots
    ffmpegProcess.StartInfo.FileName = string.Concat( Environment.CurrentDirectory, Path.DirectorySeparatorChar, ffmpegProgramName );
    try {
        //todo: log this stopwatch somewhere perhaps
        processWatch.Start();
        //set arguments every time we want to create a new screen shot
        ffmpegProcess.StartInfo.Arguments = string.Format( @"-y -i {0}{1} -threads 0 -ss 00:00:01.000 -f image2 -s 620x349 -vframes 1 ../../web/{2}.jpg", server, streamPath, slug );
        ffmpegProcess.Start();
        ffmpegProcess.WaitForExit( 500 );
        Console.WriteLine( slug );
        Console.WriteLine( processWatch.Elapsed );
        processWatch.Reset();
        runCount++;
        cacheIndexer++;
        //lets see how many spins we've had!
        Console.WriteLine( string.Format( "SERVER CACHE INDEX : {0}", cacheIndexer ) );
        Console.WriteLine( string.Format( "RUN : {0}", runCount ) );
        Console.WriteLine( Environment.NewLine );
    } catch ( Exception ex ) {
        //Console.WriteLine( "Ex " + ex );
    }
}

循环是这样的

    public void RecurseTask() {
        /*
        You can try one of these, but you will se CPU usage go crazy and perhaps concurrency errors due IO blocking
        Parallel.ForEach( _videoStreamSlugs, ( e ) => _videoStreamScreenShots.GrabScreenShot( e ) );
        foreach ( var slug in _videoStreamSlugs ) {
            Task.Run( () => _videoStreamScreenShots.GrabScreenShot( slug ) );
        }
        */
        //we want to grab screen shots for every slug in out slug list!
        foreach ( var slug in _videoStreamSlugs ) {
            _videoStreamScreenShots.GrabScreenShot( slug );
        }
        //sleep for a little while
        Thread.Sleep( _recurseInterval );
        //A heavy clean up!
        //We do this, trying to avoid a stackoverflow excecption in the recursive method
        //Please inspect this if problems arise
        GC.Collect();
        //lets grab over again
        RecurseTask();
    }

我添加了GC。出于好奇收集一下，看看它是否起了作用。

我不是在做Windows Service

public void RecurseTask() {
    while(true)
    {
        /*
        You can try one of these, but you will se CPU usage go crazy and perhaps concurrency errors due IO blocking
        Parallel.ForEach( _videoStreamSlugs, ( e ) => _videoStreamScreenShots.GrabScreenShot( e ) );
        foreach ( var slug in _videoStreamSlugs ) {
            Task.Run( () => _videoStreamScreenShots.GrabScreenShot( slug ) );
        }
        */
        //we want to grab screen shots for every slug in out slug list!
        foreach ( var slug in _videoStreamSlugs ) {
            _videoStreamScreenShots.GrabScreenShot( slug );
        }
        //sleep for a little while
        Thread.Sleep( _recurseInterval );
        //A heavy clean up!
        //We do this, trying to avoid a stackoverflow excecption in the recursive method
        //Please inspect this if problems arise
        //GC.Collect(); Not needed
        //lets grab over again
    }
}