Please describe the problem:
When I'm trying to import a directory that contains the tiger_sitting.jpg file:

http://eskimo.shlomifish.org/bugs/f-spot/tiger_standing.jpg

F-Spot hangs.



Steps to reproduce:


Actual results:
F-Spot hangs.

Expected results:
The image should be imported.

Does this happen every time?
Yes.

Other information:
I added a few print statements to the code, and am getting the following 
output:

<<<
open uri = file:///home/shlomi/TEMP/F-Spot-Crash/tiger_standing.jpg
foo
TRam
Proskote 1
Proskote 2
Proskote 3
Kudadronfu 1
Kudadronfu 1.2
Kudadronfu 1.5
Kudadronfu 2
Kudadronfu 4
Kudadronfu 5
Kudadronfu 6
Kudadronfu 6.1 17974
>>>

Now, the modified code is this: (from JpegHeader.cs)

<<<<<<<<<<<
		public static Marker Load (Stream stream) {
            System.Console.WriteLine("Kudadronfu 1");
			byte [] raw = new byte [2];
			ushort length;
		       
			if (stream.Length - stream.Position < 2)
				return null;

            System.Console.WriteLine("Kudadronfu 1.2");
			// FIXME there is a potential loop here.
			
			int read = Read (stream, raw, 0, 2);
            System.Console.WriteLine("Kudadronfu 1.5");
			if (read < 2 && raw [0] != 0xff)
				throw new System.Exception 
(System.String.Format ("Invalid marker found {0}", raw [0]));
			
            System.Console.WriteLine("Kudadronfu 2");
			JpegMarker id = (JpegMarker) raw [1];
			switch (id) {
			case JpegMarker.Soi:
			case JpegMarker.Eoi:
			case JpegMarker.Rst0:
			case JpegMarker.Rst1:
			case JpegMarker.Rst2:
			case JpegMarker.Rst3:
			case JpegMarker.Rst4:
			case JpegMarker.Rst5:
			case JpegMarker.Rst6:
			case JpegMarker.Rst7:
			case JpegMarker.Tem: 
			case (JpegMarker) 0:
            System.Console.WriteLine("Kudadronfu 3");
				return new Marker (id, null);
			default:

                System.Console.WriteLine("Kudadronfu 4");
				Read (stream, raw, 0, 2);
                System.Console.WriteLine("Kudadronfu 5");
				length = FSpot.BitConverter.ToUInt16 (raw, 0, 
false);
				
                System.Console.WriteLine("Kudadronfu 6");
				byte [] data = new byte [length - 2];
                System.Console.WriteLine("Kudadronfu 6.1 {0}", data.Length);
				Read (stream, data, 0, data.Length);

                System.Console.WriteLine("Kudadronfu 7");
				Marker ret =  new Marker (id, data);
                System.Console.WriteLine("Kudadronfu 8");
                return ret;
			}
			
		}
>>>>>>>>>>>

data.Length is reported to be 17974, but the file size is 13,286.