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Re: [Qemu-devel] Some uncertain about implementing stream optimized writ
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From: |
Stefan Hajnoczi |
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Subject: |
Re: [Qemu-devel] Some uncertain about implementing stream optimized writing |
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Date: |
Wed, 29 Jun 2011 09:12:03 +0100 |
On Wed, Jun 29, 2011 at 7:18 AM, Fam Zheng <address@hidden> wrote:
> No error report with writing (dd of=/dev/sda ...), but can't change
> data, (dd if=/dev/sda) dump unchanged.
I suggest we return EIO on non-allocating writes. That way the user
will know there is a problem with what they are trying to do.
qemu-img convert will work fine but running read-write guests will
error.
Stefan