mir_demo_server hangs

I have a trivial test application that reliably hangs the mir_demo_server. All it does is connect, allocate a surface, release the surface and disconnect. It tries to do this 1000 times. After 501 times, the server hangs, and any subsequent connections made will block indefinitely.

The test application is available at:

lp:~thomir/+junk/hangmir

The code is short, so I'll list it below as well:

<code>
#include <iostream>
#include <future>
#include "mir_toolkit/mir_client_library.h"
#include <unistd.h>

void hang_mir_server()
{
    std::cout << "Connecting...";
    MirConnection *connection_ = mir_connect_sync(NULL, "My App Name");

    MirDisplayInfo display_info;
    mir_connection_get_display_info(connection_, &display_info);

    MirPixelFormat const pixel_format = display_info.supported_pixel_format[0];
    MirSurfaceParameters const request_params =
        {
            __PRETTY_FUNCTION__,
            640,
            480,
            pixel_format,
            mir_buffer_usage_software
        };
    std::cout << "Create Surface...";
    MirSurface *surface_ = mir_connection_create_surface_sync(connection_, &request_params);
    std::cout << "Release Surface...";
    mir_surface_release_sync(surface_);

    MirPlatformPackage pkg;
    mir_connection_get_platform(connection_, &pkg);
    close(pkg.fd[0]);
    std::cout << "Disconnecting...";
    mir_connection_release(connection_);
    std::cout << "Done." << std::endl;
}

int main(int argc, char** argv)
{
    for (int i = 0; i < 1000; i++)
    {
        std::cout << "Iteration " << i << ": ";
        hang_mir_server();
    }
    return 0;
}

</snip>