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Re: [Qemu-devel] [Spice-devel] Seem thread Competition


From: ZhouPeng
Subject: Re: [Qemu-devel] [Spice-devel] Seem thread Competition
Date: Mon, 26 Dec 2011 14:36:55 +0800

On Thu, Dec 22, 2011 at 8:49 PM, ZhouPeng <address@hidden> wrote:
> On Thu, Dec 22, 2011 at 6:53 PM, Alon Levy <address@hidden> wrote:
>> On Thu, Dec 22, 2011 at 10:00:18AM +0000, Alon Levy wrote:
>>> On Thu, Dec 22, 2011 at 05:42:29PM +0800, ZhouPeng wrote:
>>> > On Thu, Dec 22, 2011 at 4:42 PM, Alon Levy <address@hidden> 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)?
>>>
>>
>> If you find it fixes your problem and doesn't introduce any new ones
>> please +1 spice-0.10.0-1.fc16 at
>> https://admin.fedoraproject.org/updates/spice-0.10.0-1.fc16
Have +1, Thanks.
>
> After the steps below, I am sure it is spice-server-0.10.0-1.fc16.x86_64 
> works.
> address@hidden pkgconfig]# ldd /usr/bin/qemu-kvm
>      libspice-server.so.1 => /usr/lib64/libspice-server.so.1
> (0x00007f5f02799000)
>
> address@hidden ~]# rpm --erase spice-server-0.9.1-1.fc16.x86_64 --nodeps
> address@hidden ~]# rpm --erase spice-server-0.10.0-1.fc16.x86_64 --nodeps
> address@hidden ~]# ls /usr/lib64/libspice-server* -l
> lrwxrwxrwx. 1 root root 24 Dec 20 06:43 /usr/lib64/libspice-server.so
> -> libspice-server.so.1.0.2
> address@hidden ~]# virsh restore 43.ckp
> error: Failed to restore domain from 43.ckp
> error: internal error Child process (LC_ALL=C
> PATH=/sbin:/usr/sbin:/bin:/usr/bin /usr/bin/qemu-kvm -help) status
> unexpected: exit status 127
>  //Note: libspice-server.so.1.0.2 doesn't exists
>
> address@hidden ~]# rpm -i spice-server-0.10.0-1.fc16.x86_64.rpm
> address@hidden ~]# ls /usr/lib64/libspice-server* -l
> lrwxrwxrwx. 1 root root     24 Dec 20 06:43
> /usr/lib64/libspice-server.so -> libspice-server.so.1.0.2
> lrwxrwxrwx  1 root root     24 Dec 22 07:21
> /usr/lib64/libspice-server.so.1 -> libspice-server.so.1.0.2
> -rwxr-xr-x  1 root root 983600 Nov 14 08:08 
> /usr/lib64/libspice-server.so.1.0.2
> address@hidden ~]# virsh restore 43.ckp
> Domain restored from 43.ckp
> ----
> The software suits related:
>
>  spice-server   x86_64   0.10.0-1.fc16    installed
>  qemu-kvm      x86_64   2:0.15.1-3.fc16  @updates
>
> This random bug appears at least 2 time one day before fixing.
> So in the coming 2 days, if this bug does't appear again, I will
> assume spice-server-0.10.0-1.fc16.x86_64.rpm fix it :)

The bug does appear again, So I think
spice-server-0.10.0-1.fc16.x86_64.rpm can fix.

The bug appear in my  software before, in steps  below:

1) virsh restore vm.ckp vm.xml
2) spice client connect
some time later go step 3)
3) virsh dump vm  vm.xml
4) virsh save vm vm.ckp
some time later go step 1) again

The err always appears in step 3) at random.

Anyway it is fixed.
Thanks,
--
Zhou Peng



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