[Users] 6.4 CR: oVirt 3.1 breaks with missing cpu features after update to CentOS 6.4 (6.3 + CR)

Mark Wu wudxw at linux.vnet.ibm.com
Tue Mar 5 03:16:58 EST 2013


On Tue 05 Mar 2013 04:52:05 AM CST, Itamar Heim wrote:
> On 04/03/2013 19:03, Patrick Hurrelmann wrote:
>> Hi list,
>>
>> I tested the upcoming CentOS 6.4 release with my lab installation of
>> oVirt 3.1 and it fails to play well.
>>
>> Background: freshly installed CentOS 6.3 host in a Nehalem CPU-type
>> Cluster with 2 other hosts. Storage is iSCSI. Datacenter and Cluster are
>> both version 3.1. oVirt 3.1 was installed via Dreyou's repo.
>>
>> In CentOS 6.3 all is fine and the following rpms are installed:
>>
>> libvirt.x86_64                0.9.10-21.el6_3.8
>> libvirt-client.x86_64         0.9.10-21.el6_3.8
>> libvirt-lock-sanlock.x86_64   0.9.10-21.el6_3.8
>> libvirt-python.x86_64         0.9.10-21.el6_3.8
>> vdsm.x86_64                   4.10.0-0.46.15.el6
>> vdsm-cli.noarch               4.10.0-0.46.15.el6
>> vdsm-python.x86_64            4.10.0-0.46.15.el6
>> vdsm-xmlrpc.noarch            4.10.0-0.46.15.el6
>> qemu-kvm.x86_64               2:0.12.1.2-2.295.el6_3.10
>>
>>
>> uname -a
>> Linux vh-test1.mydomain.com 2.6.32-279.22.1.el6.x86_64 #1 SMP Wed Feb 6
>> 03:10:46 UTC 2013 x86_64 x86_64 x86_64 GNU/Linux
>>
>> virsh cpu capabilities on 6.3:
>>      <cpu>
>>        <arch>x86_64</arch>
>>        <model>Nehalem</model>
>>        <vendor>Intel</vendor>
>>        <topology sockets='1' cores='4' threads='1'/>
>>        <feature name='rdtscp'/>
>>        <feature name='pdcm'/>
>>        <feature name='xtpr'/>
>>        <feature name='tm2'/>
>>        <feature name='est'/>
>>        <feature name='smx'/>
>>        <feature name='vmx'/>
>>        <feature name='ds_cpl'/>
>>        <feature name='monitor'/>
>>        <feature name='dtes64'/>
>>        <feature name='pbe'/>
>>        <feature name='tm'/>
>>        <feature name='ht'/>
>>        <feature name='ss'/>
>>        <feature name='acpi'/>
>>        <feature name='ds'/>
>>        <feature name='vme'/>
>>      </cpu>
>>
>> and corresponding cpu features from vdsClient:
>>
>>     cpuCores = 4
>>     cpuFlags = fpu,vme,de,pse,tsc,msr,pae,mce,cx8,apic,mtrr,pge,mca,
>>                cmov,pat,pse36,clflush,dts,acpi,mmx,fxsr,sse,sse2,ss,ht,
>>                tm,pbe,syscall,nx,rdtscp,lm,constant_tsc,arch_perfmon,
>>                pebs,bts,rep_good,xtopology,nonstop_tsc,aperfmperf,pni,
>>                dtes64,monitor,ds_cpl,vmx,smx,est,tm2,ssse3,cx16,xtpr,
>>
>> pdcm,sse4_1,sse4_2,popcnt,lahf_lm,ida,dts,tpr_shadow,vnmi,
>>                flexpriority,ept,vpid,model_Conroe,model_Penryn,
>>                model_Nehalem
>>     cpuModel = Intel(R) Xeon(R) CPU           X3430  @ 2.40GHz
>>     cpuSockets = 1
>>     cpuSpeed = 2394.132
>>
>>
>> So the system was updated to 6.4 using the continuous release repo.
>>
>> Installed rpms after update to 6.4 (6.3 + CR):
>>
>> libvirt.x86_64                0.10.2-18.el6
>> libvirt-client.x86_64         0.10.2-18.el6
>> libvirt-lock-sanlock.x86_64   0.10.2-18.el6
>> libvirt-python.x86_64         0.10.2-18.el6
>> vdsm.x86_64                   4.10.0-0.46.15.el6
>> vdsm-cli.noarch               4.10.0-0.46.15.el6
>> vdsm-python.x86_64            4.10.0-0.46.15.el6
>> vdsm-xmlrpc.noarch            4.10.0-0.46.15.el6
>> qemu-kvm.x86_64               2:0.12.1.2-2.355.el6_4_4.1
>>
>>
>> uname -a
>> Linux vh-test1.mydomain.com 2.6.32-358.0.1.el6.x86_64 #1 SMP Wed Feb 27
>> 06:06:45 UTC 2013 x86_64 x86_64 x86_64 GNU/Linux
>>
>> virsh capabilities on 6.4:
>>      <cpu>
>>        <arch>x86_64</arch>
>>        <model>Nehalem</model>
>>        <vendor>Intel</vendor>
>>        <topology sockets='1' cores='4' threads='1'/>
>>        <feature name='rdtscp'/>
>>        <feature name='pdcm'/>
>>        <feature name='xtpr'/>
>>        <feature name='tm2'/>
>>        <feature name='est'/>
>>        <feature name='smx'/>
>>        <feature name='vmx'/>
>>        <feature name='ds_cpl'/>
>>        <feature name='monitor'/>
>>        <feature name='dtes64'/>
>>        <feature name='pbe'/>
>>        <feature name='tm'/>
>>        <feature name='ht'/>
>>        <feature name='ss'/>
>>        <feature name='acpi'/>
>>        <feature name='ds'/>
>>        <feature name='vme'/>
>>      </cpu>
>>
>> and corresponding cpu features from vdsClient:
>>
>>     cpuCores = 4
>>     cpuFlags = fpu,vme,de,pse,tsc,msr,pae,mce,cx8,apic,sep,mtrr,pge,mca,
>>                cmov,pat,pse36,clflush,dts,acpi,mmx,fxsr,sse,sse2,ss,ht,
>>                tm,pbe,syscall,nx,rdtscp,lm,constant_tsc,arch_perfmon,
>>                pebs,bts,rep_good,xtopology,nonstop_tsc,aperfmperf,pni,
>>                dtes64,monitor,ds_cpl,vmx,smx,est,tm2,ssse3,cx16,xtpr,
>>
>> pdcm,sse4_1,sse4_2,popcnt,lahf_lm,ida,dts,tpr_shadow,vnmi,
>>                flexpriority,ept,vpid,model_coreduo,model_Conroe
>>     cpuModel = Intel(R) Xeon(R) CPU           X3430  @ 2.40GHz
>>     cpuSockets = 1
>>     cpuSpeed = 2394.098
>>
>> Full outputs of virsh capabilities and vdsCaps are attached. The only
>> difference I can see is that 6.4 exposes one additional cpu flags (sep)
>> and this seems to break the cpu recognition of vdsm.
>>
>> Anyone has some hints on how to resolve or debug this further? What more
>> information can I provide to help?
>>
>> Best regards
>> Patrick
>>
>>
>>
>> _______________________________________________
>> Users mailing list
>> Users at ovirt.org
>> http://lists.ovirt.org/mailman/listinfo/users
>>
>
> seems like a vdsm issue - can you check if you have this patch (not
> sure its related):
>
> commit 558994f8ffe030acd1b851dfd074f3417681337b
> Author: Mark Wu <wudxw at linux.vnet.ibm.com>
> Date:   Tue Oct 9 11:18:10 2012 +0800
>
>     Fix a bug in the naming convertion of cpu feature 'sse4_x'
>
>     The list slice opertion missed the last character. It caused
>     the feature name couldn't get chance to be converted into
>     libvirt's naming.
>
>     Change-Id: Ia241b09c96fa16441ba9421f61a2f9a417f0d978
>     Signed-off-by: Mark Wu <wudxw at linux.vnet.ibm.com>
>     Reviewed-on: http://gerrit.ovirt.org/8413
>     Reviewed-by: Dan Kenigsberg <danken at redhat.com>
>     Reviewed-by: Michal Skrivanek <michal.skrivanek at redhat.com>
>
> diff --git a/vdsm/libvirtvm.py b/vdsm/libvirtvm.py
> index 64a3b6b..bd43b56 100644
> --- a/vdsm/libvirtvm.py
> +++ b/vdsm/libvirtvm.py
> @@ -735,7 +735,7 @@ class _DomXML:
>
>          for feature in features[1:]:
>              # convert Linux name of feature to libvirt
> -            if feature[1:5] == 'sse4_':
> +            if feature[1:6] == 'sse4_':
>                  feature = feature[0] + 'sse4.' + feature[6:]
>
>              f = self.doc.createElement('feature')
>
> _______________________________________________
> Users mailing list
> Users at ovirt.org
> http://lists.ovirt.org/mailman/listinfo/users
>

What's the missing cpu features reported by engine?  Do it work if you 
change cluster cpu model to Conroe?



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