Re: [Qemu-devel] Seem thread Competition

[Alon Levy <alevy@redhat.com>]

On Thu, Dec 22, 2011 at 07:07:14PM +0800, ZhouPeng wrote:
> On Thu, Dec 22, 2011 at 6:00 PM, Alon Levy <alevy@redhat.com> wrote:
> > On Thu, Dec 22, 2011 at 05:42:29PM +0800, ZhouPeng wrote:
> >> On Thu, Dec 22, 2011 at 4:42 PM, Alon Levy <alevy@redhat.com> wrote:
> >> > On Thu, Dec 22, 2011 at 10:13:50AM +0800, ZhouPeng wrote:
> >> >> Hi,
> >> >>
> >> >> I meet the err:
> >> >>
> >> >> # virsh dumpxml 63
> >> >> error: internal error cannot parse json {"timestamp": {"seconds":
> >> >> 1323332828, "microseco{"timest35p":39}, "econds":PICE_D 1CO3233TE828,
> >> >> Dmicrosec "ds"data"52}, : {"ser: "SPrCE_DIS"ONNEC{ED", "port": {"serve
> >> >> ": {6299": "62, "famiamily": "ipv:", "hist": pv4"1 "hos6":
> >> >> "182.168.12.231"}, "2lient.: {"p2rt": 3350196, "fa"ily": "}, "cl,
> >> >> "ho{sport":t"35020", ": "19y": "i2.4", "168.1.": "19}: lexical error:
> >> >> invalid string in json text.
> >> >>           ds": 1323332828, "microseco{"timest35p":39}, "econds":PICE_D
> >> >>
> >> >> This similar bug seems has been reported by:
> >> >> https://bugzilla.redhat.com/show_bug.cgi?id=744105
> >> >>
> >> >> The patch(http://cgit.freedesktop.org/spice/qemu/commit/?h=spice.v42)
> >> >> seems be related with the competition.
> >> >> But I searched the upstream qemu, it has not been merged in.
> >> >>
> >> >> My qemu is qemu-kvm-0.15.1 on 3.1.2-1.fc16.x86_64
> >> >>
> >> >> Is there any plan about this bug, it seems be some serious.
> >> >>
> >> >
> >> > The patch Daniel Berrange mentioned wotrked around it in qemu and is in
> >> > qemu 1.0-rc0 and onward, still checking qemu-kvm. There is another patch
> >>
> >> Yea, I searched  in spice-core.c again and the patch is in qemu unstable
> >> Sorry, I carelessly search by " me " but not " me;" before.
> >
> > It is in qemu-kvm-1.0 as well. But like you said fedora carries 0.15.1
> > that doesn't have it.
> >
> >> > in spice-0.10 and in 0.8, still need to check if it's in fedora. Which
> >> > version of spice are you using?
> >>
> >> spice-server.x86_64  version 0.9.1
> >
> > which doesn't have the spice side fix. but 0.10.0 has it, and it is
> > closest to 0.9.1. I assume this is from the fedora package as well since
> > you mentioned qemu-kvm is from a fedora package? seems the latest is
> > indeed 0.9.1-1, can you test
> > http://koji.fedoraproject.org/koji/buildinfo?buildID=273917
> > (spice-server-0.10.0-1)?
> [root@localhost ~]# rpm -i spice-server-0.10.0-1.fc16.x86_64.rpm
>         file /usr/lib64/libspice-server.so.1.0.2 from install of
> spice-server-0.10.0-1.fc16.x86_64 conflicts with file from package
> spice-server-0.9.1-1.fc16.x86_64
> 
> So I force install
> rpm -i --force spice-server-0.10.0-1.fc16.x86_64.rpm
> 
> yum list installed:
> spice-server.x86_64                     0.9.1-1.fc16                 @anaconda-0
> spice-server.x86_64                     0.10.0-1.fc16                installed
> 
> 0.9.1-1.fc16 seems not be overrided.
> 
> So  first, I am not sure qemu-kvm will use 0.10.0-1.fc16  or 0.9.1-1.fc16
> 
> Second, this is a random bug, I am not sure when it will  appear again.

Easy to reproduce - do a lot of connect/disconnect of spice clients in
succession (that's how I tested).

> -- 
> Zhou Peng