RE: [Xen-devel] Re: Getting xen to recognise large disks

["Ian Pratt" <m+Ian.Pratt@xxxxxxxxxxxx>]

> Robin Bowes wrote:
> > I'd love to post a patch, but I'm afraid I'm not a coder.
> >
> > I'm downloading the SRPMS as I type and I'll give it a go, but it
might
> > be an idea if someone with more coding skills fixes this.
> >
> > I'll post an update when I've had a go.
> 
> OK, I've made the change to blkfront.c but there is no xenbus_printf
in
> blkback.c so I didn't make that change. (I'm using xen-3.0.3 from the
> FC6 SRPM)

I meant blkback/xenbus.c

It would also be good to change tools/blktap/lib/xenbus.c for good
measure.

The rest of the patch looks OK, modulo use of tab vs spaces.

Thanks,
Ian

 
> I've rebuilt the xen RPM with this patch:
> 
> diff -ur
> xen-3.0.3-rc3/linux-2.6-xen-sparse/drivers/xen/blkfront/blkfront.c
> xen-3.0.3-rc3.patched/linux-2.6-xen-sp
> arse/drivers/xen/blkfront/blkfront.c
> --- xen-3.0.3-rc3/linux-2.6-xen-sparse/drivers/xen/blkfront/blkfront.c
> 2006-10-10 15:23:43.000000000 +0100
> +++
>
xen-3.0.3-rc3.patched/linux-2.6-xen-sparse/drivers/xen/blkfront/blkfront
.c
>  2006-11-21 01:10:54.000000000 +000
> 0
> @@ -294,7 +294,8 @@
>   */
>  static void connect(struct blkfront_info *info)
>  {
> -       unsigned long sectors, sector_size;
> +       blkif_sector_r sectors;
> +    unsigned long sector_size;
>         unsigned int binfo;
>         int err;
> 
> @@ -305,7 +306,7 @@
>         DPRINTK("blkfront.c:connect:%s.\n", info->xbdev->otherend);
> 
>         err = xenbus_gather(XBT_NIL, info->xbdev->otherend,
> -                           "sectors", "%lu", &sectors,
> +                           "sectors", "%llu", &sectors,
>                             "info", "%u", &binfo,
>                             "sector-size", "%lu", &sector_size,
>                             NULL);
> 
> 
> I installed the resulting RPMs (xen and xen-libs) and rebooted the
dom0
> host.
> 
> However, the xvdb device still only shows up like this:
> 
> major minor  #blocks  name
>  202    16  782819328 xvdb
> 
> Did I not do it right?
> 
> R.
> 
> 
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