On 11.07.2012 21:35, Brian Candler wrote:
On Wed, Jul 11, 2012 at 12:55:50PM -0500, Mark Nipper wrote:
Would that be using something like O_DIRECT which FUSE
doesn't support at the moment?
Yes. FUSE does support it in recent kernels (3.4), and I tried it.
Nothing
happened until I also mounted with -o direct-io-mode=enable; with
that and
cache=none, the VM was unable to start up at all.
This FUSE patch has been backported into RHEL 6.3 and should also work
with latest 6.2 kernels.
Iirc, it also worked with cache=none without any special mount options,
but unfortunately I don't have possibility to test if that's true :(
-samuli
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