[Bug 703811] Re: kvm guest's cpu usage with virtio storage driver goes up to 100% because of flush process

[Roman R]

I dont have any raids configured at my laptop but had on my production server and the reason, the reason why i've installed kvm on laptop was that i was thinking that its raid problem :)
and to reproduce (for me) only i've got to do is fresh ubuntu installation with kvm.
i dont know, may be its up to my hardware specs and some of kvm / libvirt code part. but the patch u've provided seems to solve the problem. so there must be something in the changelog

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https://bugs.launchpad.net/bugs/703811

Title:
  kvm guest's cpu usage with virtio storage driver goes up to 100%
  because of flush process