On Tue, May 18, 2010 at 03:22:36PM +0200, Kevin Wolf wrote: > I think it's stuck here in an endless loop: > > while (laiocb->ret == -EINPROGRESS) > qemu_laio_completion_cb(laiocb->ctx); > > Can you verify this by single-stepping one or two loop iterations? ret > and errno after the read call could be interesting, too.
Maybe the compiler is just too smart. Without some form of barrier it could just optimize the loop away as laiocb->ret couldn't change in a normal single-threaded environment.
