Nokia-N800-48:~# mono file.exe 
Stacktrace:

  at (wrapper managed-to-native) System.IO.MonoIO.Seek (intptr,long,System.IO.SeekOrigin,System.IO.MonoIOError&) <0xffffffff>
  at System.IO.FileStream.FlushBuffer () <0x00074>
  at System.IO.FileStream.Flush () <0x0002b>
  at System.IO.StreamWriter.Flush () <0x0004f>
  at FileIOTest.Main () <0x0005f>
  at (wrapper runtime-invoke) System.Object.runtime_invoke_void (object,intptr,intptr,intptr) <0xffffffff>

Native stacktrace:

        mono [0x103fc8]
        [0x405cb520]

=================================================================
Got a SIGSEGV while executing native code. This usually indicates
a fatal error in the mono runtime or one of the native libraries 
used by your application.
=================================================================