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[Xen-devel] blkfront/back and sector size of 2048 with CDROM's

  • To: "xen-devel" <xen-devel@xxxxxxxxxxxxxxxxxxx>
  • From: "James Harper" <james.harper@xxxxxxxxxxxxxxxx>
  • Date: Tue, 5 Feb 2008 11:09:42 +1100
  • Delivery-date: Mon, 04 Feb 2008 16:10:10 -0800
  • List-id: Xen developer discussion <xen-devel.lists.xensource.com>
  • Thread-index: Achni2ggR2p2caN2Szy4krhWTtOFHg==
  • Thread-topic: blkfront/back and sector size of 2048 with CDROM's

It looks like mounting a physical CDROM under the windows gpl pv drivers
doesn't work, and I suspect that the problem is because the CDROM uses a
sector size of 2048 instead of 512.

Do the pages passed between the front and backend scale to using
different sector sizes, or do I have to do some magic to fudge them back
to 512?



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