Apparent problem with GC not collecting on Windows

[Ali Çehreli]

A friend of mine reports that the memory usage of the following program 
grows continuously when compiled with dmd 2.060 and run on Windows 7 sp1 
home premium 64 bit (also on Microsoft Windows [Version 6.1.7600]).

If you are on Windows, could you please say whether you have the same 
problem. (I don't have Windows.) The following is how we reproduce:

Generate a file of about 1G by running the following program:

import std.stdio;

void foo()
{
     auto file = File("one_gigabyte_file", "w");
     auto data = new ubyte[](100 * 1024 * 1024);

     foreach (i; 0 .. 10) {
         file.rawWrite(data);
     }
}

void main()
{
     foo();
}

That part is not the problem. The problem is when reading such a large 
file by chunks. Could you please run the following program and report 
whether the memory consumption of it is increasing continuously:

import std.stdio;

void foo()
{
     auto file = File("one_gigabyte_file", "r");
     auto data = new ubyte[](100 * 1024 * 1024);

     foreach (i; 0 .. 10) {
         file.rawRead(data);
     }
}

void main()
{
     for (size_t i; true; ++i) {
         writeln(i);
         foo();
     }
}

The program gets terminated by a core.exception.OutOfMemoryError. (Same 
problem with std.stream.BufferedFile.)

I don't see any problem under Linux.

Thank you,
Ali