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Date: Thu, 7 Aug 2014 13:06:51 +0200
From: Kevin Wolf <kwolf@redhat.com>
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Subject: Re: [Qemu-devel] [PATCH v1 00/17] dataplane: optimization and multi
 virtqueue support
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To: Ming Lei <ming.lei@canonical.com>
Cc: Peter Maydell <peter.maydell@linaro.org>, Fam Zheng <famz@redhat.com>, "Michael S. Tsirkin" <mst@redhat.com>, qemu-devel <qemu-devel@nongnu.org>, Stefan Hajnoczi <stefanha@redhat.com>, Paolo Bonzini <pbonzini@redhat.com>

Am 07.08.2014 um 12:52 hat Ming Lei geschrieben:
> On Thu, Aug 7, 2014 at 6:27 PM, Ming Lei <ming.lei@canonical.com> wrote:
> > On Wed, Aug 6, 2014 at 11:40 PM, Kevin Wolf <kwolf@redhat.com> wrote:
> 
> > Also there are some problems with your patches which can't boot a
> > VM in my environment:
> >
> > - __thread patch: looks there is no '__thread' used, and the patch
> > basically makes bypass not workable.
> >
> > - bdrv_co_writev callback isn't set for raw-posix, looks my rootfs need to
> > write during booting
> >
> > - another problem, I am investigating: laio isn't accessable
> > in qemu_laio_process_completion() sometimes
> 
> This one should be caused by accessing 'laiocb' after cb().

I stumbled across the same problems this morning when I tried to
actually run VMs with it instead of just qemu-img bench. They should all
be fixed in my git repo now. (Haven't figured out yet why __thread
doesn't work, so I have reverted that part, probably at the cost of some
performance.)

Kevin