Re: [Qemu-devel] [PATCH v8 1/2] block/vxhs.c: Add support for a new block device type called "vxhs"

[Jeff Cody <jcody@redhat.com>]

On Thu, Feb 09, 2017 at 08:14:38AM -0800, ashish mittal wrote:
> On Thu, Feb 9, 2017 at 6:32 AM, Jeff Cody <jcody@redhat.com> wrote:
> > On Thu, Feb 09, 2017 at 01:24:58AM -0800, ashish mittal wrote:
> >> On Wed, Feb 8, 2017 at 10:29 PM, Jeff Cody <jcody@redhat.com> wrote:
> >> > On Wed, Feb 08, 2017 at 09:23:33PM -0800, Ashish Mittal wrote:
> >> >> From: Ashish Mittal <ashish.mittal@veritas.com>
> >> >>
> >> >> Source code for the qnio library that this code loads can be downloaded from:
> >> >> https://github.com/VeritasHyperScale/libqnio.git
> >> >>
> >> >> Sample command line using JSON syntax:
> >> >> ./x86_64-softmmu/qemu-system-x86_64 -name instance-00000008 -S -vnc 0.0.0.0:0
> >> >> -k en-us -vga cirrus -device virtio-balloon-pci,id=balloon0,bus=pci.0,addr=0x5
> >> >> -msg timestamp=on
> >> >> 'json:{"driver":"vxhs","vdisk-id":"c3e9095a-a5ee-4dce-afeb-2a59fb387410",
> >> >> "server":{"host":"172.172.17.4","port":"9999"}}'
> >> >>
> >> >> Sample command line using URI syntax:
> >> >> qemu-img convert -f raw -O raw -n
> >> >> /var/lib/nova/instances/_base/0c5eacd5ebea5ed914b6a3e7b18f1ce734c386ad
> >> >> vxhs://192.168.0.1:9999/c6718f6b-0401-441d-a8c3-1f0064d75ee0
> >> >>
> >> >
> >> > I don't know if I am using the qnio_server test server correctly or not, but
> >> > when I run qemu-io from the command line I get an i/o error.  When I run the
> >> > qemu-iotests, I get a segfault.
> >> >
> >> > Were you able to run qemu-iotests with these patches?
> >> >
> >> > Here is how I am invoking qnio_server:
> >> >
> >> > # qnio_server  -d /home/jcody/work/redhat/upstream/qemu-kvm/tests/qemu-iotests/scratch -v
> >> >
> >> >
> >>
> >> I ran full qemu-iotests and qemu-io manually with the test server on
> >> version 7 patches. Ran qemu-io manually with the test server on
> >> version 8, but the libvxhs code is undergoing a lot of checkins. Will
> >> test again tomorrow and get back.
> >>
> >
> > Does my invocation above look correct, for running the qemu-iotests?
> 
> qemu-iotest starts the server internally. The server does not have to
> be started explicitly before running qemu-iotest. The server must not
> be running before you begin the test  because then the tests would
> find port 9999 busy.
> Running make install on libvxhs copies the test server to the location
> where the qemu-iotests expect to find it.


OK, thanks.  I tried that too, and I also tried against the branch
"ashish_securify_changes" for libqnio.  I still have qemu-iotests giving me
a segfault.