Re: [Qemu-devel] [PATCH v2 3/3] dataplane: handle misaligned virtio-blk requests

[Stefan Hajnoczi]

On Fri, Jan 11, 2013 at 02:28:17PM +0100, Paolo Bonzini wrote:
> Il 11/01/2013 13:34, Stefan Hajnoczi ha scritto:
> > +        iov = &bounce_iov;
> > +        iov_cnt = 1;
> > +
> > +        if (read) {
> > +            /* Need to copy back from bounce buffer on completion */
> > +            read_qiov = g_slice_new(QEMUIOVector);
> > +            qemu_iovec_init(read_qiov, iov_cnt);
> > +            qemu_iovec_concat_iov(read_qiov, iov, iov_cnt, 0, qiov.size);
> 
> This is still wrong, how did you test it?

I sent it before reading the reviews from you and Kevin.  Bizarrely
Windows saw the files I copied to the disk - even across reboot (no
buffer cache involved?).  Or is Windows 8 doing tricks like "shutdown"
is actually "suspend to disk"?

Stefan