On 11/22/2013 09:20 AM, Christoph Hellwig wrote:
On Fri, Nov 22, 2013 at 09:13:56AM -0500, Ric Wheeler wrote:
I think you do that by using SCSI debug to get a 4K sector drive -
that is how we tested for RHEL6 for example. Layering on
restrictions to hardware in the file system seems a bit harsh.
The QEMU crowd will be working to get better support for 4K drives
in the future, but I think that we are effectively going to cause a
huge field issue here since these 512/4K drives are extremely
common..
Given the SCSI debug method for this, does that mean you retract
your objections and will support Eric's patch :) ?
We actually have a test for 4k drives using scsi_debug in xfstests: xfs/279.
Just to add on here. we are going to work more closely with the kvm/qemu people
to make sure that they properly take care of the hints about alignment and so on
(thanks to you for putting that in!).
Ric
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