On Mon, Mar 10, 2014 at 04:11:20PM +0000, Richard W.M. Jones wrote:
> Guest:
>  - guest kernel: 3.13.4-200.fc20.x86_64
>  - ext4 guest filesystem
>  - fstrim from util-linux 2.24.1
>  - cat /sys/block/sda/device/scsi_disk/*/provisioning_mode
>    unmap

I noticed that I wasn't mounting the guest filesystem with '-o discard'.
However it still doesn't work even after adding this option.

Rich.

-- 
Richard Jones, Virtualization Group, Red Hat http://people.redhat.com/~rjones
virt-df lists disk usage of guests without needing to install any
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http://people.redhat.com/~rjones/virt-df/

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