[lago-devel] [ovirt-devel] OST: vm_run fails for me (basic-suite-master)

[Nadav Goldin]

What is the host CPU you are using?
I came across the same error few days ago, but without running OST, I
tried running with Lago:
fc24 host -> el7 vm -> el7 vm.

I have a slight suspect that it is related to the CPU model we
configure in libvirt, I tried a mixture of few
combinations(host-pass-through, pinning down the CPU model), but it
always failed on the same error:
kvm_put_msrs: Assertion `ret == n' failed.

My CPU is Broadwell btw.


Milan, any ideas? you think it might be related?

Nadav.



On Tue, Feb 7, 2017 at 11:14 PM, Ondrej Svoboda <osvoboda at redhat.com> wrote:
> Yes, I stated that in my message.
>
> root at osvoboda-t460p /home/src/ovirt-system-tests (git)-[master] # cat
> /sys/module/kvm_intel/parameters/nested
> :(
> Y
>
> On Tue, Feb 7, 2017 at 1:39 PM, Eyal Edri <eedri at redhat.com> wrote:
>>
>> Did you follow the instructions on [1] ?
>>
>> Specifically, verifying  ' cat /sys/module/kvm_intel/parameters/nested '
>> gives you 'Y'.
>>
>> [1]
>> http://ovirt-system-tests.readthedocs.io/en/latest/docs/general/installation.html
>>
>> On Tue, Feb 7, 2017 at 2:29 PM, Ondrej Svoboda <osvoboda at redhat.com>
>> wrote:
>>>
>>> Hi everyone,
>>>
>>> Even though I have nested virtualization enabled in my Arch Linux system
>>> which I use to run OST, vm_run is the first test to fail in 004_basic_sanity
>>> (followed by snapshots_merge and suspend_resume_vm).
>>>
>>> Can you point me to what I might be missing? I believe I get the same
>>> failure even on Fedora.
>>>
>>> This is what host0's CPU capabilities look like (vmx is there):
>>> [root at lago-basic-suite-master-host0 ~]# cat /proc/cpuinfo
>>> processor    : 0
>>> vendor_id    : GenuineIntel
>>> cpu family    : 6
>>> model        : 44
>>> model name    : Westmere E56xx/L56xx/X56xx (Nehalem-C)
>>> stepping    : 1
>>> microcode    : 0x1
>>> cpu MHz        : 2711.988
>>> cache size    : 16384 KB
>>> physical id    : 0
>>> siblings    : 1
>>> core id        : 0
>>> cpu cores    : 1
>>> apicid        : 0
>>> initial apicid    : 0
>>> fpu        : yes
>>> fpu_exception    : yes
>>> cpuid level    : 11
>>> wp        : yes
>>> flags        : fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca
>>> cmov pat pse36 clflush mmx fxsr sse sse2 syscall nx lm constant_tsc rep_good
>>> nopl xtopology pni pclmulqdq vmx ssse3 cx16 sse4_1 sse4_2 x2apic popcnt aes
>>> hypervisor lahf_lm arat tpr_shadow vnmi flexpriority ept vpid
>>> bogomips    : 5423.97
>>> clflush size    : 64
>>> cache_alignment    : 64
>>> address sizes    : 40 bits physical, 48 bits virtual
>>> power management:
>>>
>>> journalctl -b on host0 shows that libvirt complains about NUMA
>>> configuration:
>>>
>>> Feb 07 06:33:23 lago-basic-suite-master-host0 libvirtd[12888]: libvirt
>>> version: 2.0.0, package: 10.el7_3.4 (CentOS BuildSystem
>>> <http://bugs.centos.org>, 2017-01-17-23:37:48, c1bm.rdu2.centos.org)
>>> Feb 07 06:33:23 lago-basic-suite-master-host0 kernel: ovirtmgmt: port
>>> 2(vnet0) entered disabled state
>>> Feb 07 06:33:23 lago-basic-suite-master-host0 kernel: device vnet0 left
>>> promiscuous mode
>>> Feb 07 06:33:23 lago-basic-suite-master-host0 kernel: ovirtmgmt: port
>>> 2(vnet0) entered disabled state
>>> Feb 07 06:33:23 lago-basic-suite-master-host0 libvirtd[12888]: hostname:
>>> lago-basic-suite-master-host0.lago.local
>>> Feb 07 06:33:23 lago-basic-suite-master-host0 libvirtd[12888]: Unable to
>>> read from monitor: Connection reset by peer
>>> Feb 07 06:33:23 lago-basic-suite-master-host0 libvirtd[12888]: internal
>>> error: qemu unexpectedly closed the monitor: 2017-02-07T11:33:23.058571Z
>>> qemu-kvm: warning: CPU(s) not present in any NUMA nodes: 1 2 3 4 5 6 7 8 9
>>> 10 11 12 13 14 15
>>>
>>> 2017-02-07T11:33:23.058826Z qemu-kvm: warning: All CPU(s) up to maxcpus
>>> should be described in NUMA config
>>>                                                                qemu-kvm:
>>> /builddir/build/BUILD/qemu-2.6.0/target-i386/kvm.c:1736: kvm_put_msrs:
>>> Assertion `ret == n' failed.
>>> Feb 07 06:33:23 lago-basic-suite-master-host0 NetworkManager[657]: <info>
>>> [1486467203.1025] device (vnet0): state change: disconnected -> unmanaged
>>> (reason 'unmanaged') [30 10 3]
>>> Feb 07 06:33:23 lago-basic-suite-master-host0 kvm[22059]: 0 guests now
>>> active
>>> Feb 07 06:33:23 lago-basic-suite-master-host0 systemd-machined[22044]:
>>> Machine qemu-1-vm0 terminated.
>>>
>>> Thanks,
>>> Ondra
>>>
>>> _______________________________________________
>>> Devel mailing list
>>> Devel at ovirt.org
>>> http://lists.ovirt.org/mailman/listinfo/devel
>>
>>
>>
>>
>> --
>> Eyal Edri
>> Associate Manager
>> RHV DevOps
>> EMEA ENG Virtualization R&D
>> Red Hat Israel
>>
>> phone: +972-9-7692018
>> irc: eedri (on #tlv #rhev-dev #rhev-integ)
>
>
>
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