
Dear All, Our vGPU installation is progressing, though the VM is failing to start. 2018-05-16 22:57:34,328+0100 ERROR (vm/1bc9dae8) [virt.vm] (vmId='1bc9dae8-a0ea-44b3-9103-5805100648d0') The vm start process failed (vm:943) Traceback (most recent call last): File "/usr/lib/python2.7/site-packages/vdsm/virt/vm.py", line 872, in _startUnderlyingVm self._run() File "/usr/lib/python2.7/site-packages/vdsm/virt/vm.py", line 2872, in _run dom.createWithFlags(flags) File "/usr/lib/python2.7/site-packages/vdsm/common/libvirtconnection.py", line 130, in wrapper ret = f(*args, **kwargs) File "/usr/lib/python2.7/site-packages/vdsm/common/function.py", line 92, in wrapper return func(inst, *args, **kwargs) File "/usr/lib64/python2.7/site-packages/libvirt.py", line 1099, in createWithFlags if ret == -1: raise libvirtError ('virDomainCreateWithFlags() failed', dom=self) libvirtError: Cannot get interface MTU on '': No such device That's the specific error, some other information. It seems the GPU 'allocation' of uuid against the nvidia-xx mdev type is proceeding correctly, and the device is being created by the VM instantiation but the VM does not succeed in going up with this error. Any other logs or information relevant to help diagnose? Regards, Callum -- Callum Smith Research Computing Core Wellcome Trust Centre for Human Genetics University of Oxford e. callum@well.ox.ac.uk<mailto:callum@well.ox.ac.uk>

On 05/17/2018 12:01 AM, Callum Smith wrote:
Dear All,
Our vGPU installation is progressing, though the VM is failing to start.
2018-05-16 22:57:34,328+0100 ERROR (vm/1bc9dae8) [virt.vm] (vmId='1bc9dae8-a0ea-44b3-9103-5805100648d0') The vm start process failed (vm:943) Traceback (most recent call last): File "/usr/lib/python2.7/site-packages/vdsm/virt/vm.py", line 872, in _startUnderlyingVm self._run() File "/usr/lib/python2.7/site-packages/vdsm/virt/vm.py", line 2872, in _run dom.createWithFlags(flags) File "/usr/lib/python2.7/site-packages/vdsm/common/libvirtconnection.py", line 130, in wrapper ret = f(*args, **kwargs) File "/usr/lib/python2.7/site-packages/vdsm/common/function.py", line 92, in wrapper return func(inst, *args, **kwargs) File "/usr/lib64/python2.7/site-packages/libvirt.py", line 1099, in createWithFlags if ret == -1: raise libvirtError ('virDomainCreateWithFlags() failed', dom=self) libvirtError: Cannot get interface MTU on '': No such device
This is another bug, related to https://bugzilla.redhat.com/show_bug.cgi?id=1561010. The proper fix is on Engine side, even though we can fix it on Vdsm side too Bests, -- Francesco Romani Senior SW Eng., Virtualization R&D Red Hat IRC: fromani github: @fromanirh

On Mon, May 21, 2018 at 1:15 PM, Francesco Romani <fromani@redhat.com> wrote:
On 05/17/2018 12:01 AM, Callum Smith wrote:
Dear All,
Our vGPU installation is progressing, though the VM is failing to start.
2018-05-16 22:57:34,328+0100 ERROR (vm/1bc9dae8) [virt.vm] (vmId='1bc9dae8-a0ea-44b3-9103-5805100648d0') The vm start process failed (vm:943) Traceback (most recent call last): File "/usr/lib/python2.7/site-packages/vdsm/virt/vm.py", line 872, in _startUnderlyingVm self._run() File "/usr/lib/python2.7/site-packages/vdsm/virt/vm.py", line 2872, in _run dom.createWithFlags(flags) File "/usr/lib/python2.7/site-packages/vdsm/common/libvirtconnection.py", line 130, in wrapper ret = f(*args, **kwargs) File "/usr/lib/python2.7/site-packages/vdsm/common/function.py", line 92, in wrapper return func(inst, *args, **kwargs) File "/usr/lib64/python2.7/site-packages/libvirt.py", line 1099, in createWithFlags if ret == -1: raise libvirtError ('virDomainCreateWithFlags() failed', dom=self) libvirtError: Cannot get interface MTU on '': No such device
This is another bug, related to https://bugzilla.redhat.com/show_bug.cgi?id=1561010. The proper fix is on Engine side, even though we can fix it on Vdsm side too
Bests,
-- Francesco Romani Senior SW Eng., Virtualization R&D Red Hat IRC: fromani github: @fromanirh _______________________________________________ Users mailing list -- users@ovirt.org To unsubscribe send an email to users-leave@ovirt.org
Dear Callum, can you send us also the engine.log? And which version of the engine are you using? Regards, Ales. -- ALES MUSIL INTERN - rhv network Red Hat EMEA <https://www.redhat.com/> amusil@redhat.com IM: amusil <https://red.ht/sig>

Dear Ales, 4.2.3,5-1 Through extensive testing done with the help of Martin Polednik the issues with the vGPU startup appear to be within the nvidia drivers, so continuation of that issue is now going through nvidia. The issue with the nics MTU appears to have gone away with the upgrade of host to the version above. Regards, Callum -- Callum Smith Research Computing Core Wellcome Trust Centre for Human Genetics University of Oxford e. callum@well.ox.ac.uk<mailto:callum@well.ox.ac.uk> On 21 May 2018, at 13:23, Ales Musil <amusil@redhat.com<mailto:amusil@redhat.com>> wrote: On Mon, May 21, 2018 at 1:15 PM, Francesco Romani <fromani@redhat.com<mailto:fromani@redhat.com>> wrote: On 05/17/2018 12:01 AM, Callum Smith wrote:
Dear All,
Our vGPU installation is progressing, though the VM is failing to start.
2018-05-16 22:57:34,328+0100 ERROR (vm/1bc9dae8) [virt.vm] (vmId='1bc9dae8-a0ea-44b3-9103-5805100648d0') The vm start process failed (vm:943) Traceback (most recent call last): File "/usr/lib/python2.7/site-packages/vdsm/virt/vm.py", line 872, in _startUnderlyingVm self._run() File "/usr/lib/python2.7/site-packages/vdsm/virt/vm.py", line 2872, in _run dom.createWithFlags(flags) File "/usr/lib/python2.7/site-packages/vdsm/common/libvirtconnection.py", line 130, in wrapper ret = f(*args, **kwargs) File "/usr/lib/python2.7/site-packages/vdsm/common/function.py", line 92, in wrapper return func(inst, *args, **kwargs) File "/usr/lib64/python2.7/site-packages/libvirt.py", line 1099, in createWithFlags if ret == -1: raise libvirtError ('virDomainCreateWithFlags() failed', dom=self) libvirtError: Cannot get interface MTU on '': No such device
This is another bug, related to https://bugzilla.redhat.com/show_bug.cgi?id=1561010. The proper fix is on Engine side, even though we can fix it on Vdsm side too Bests, -- Francesco Romani Senior SW Eng., Virtualization R&D Red Hat IRC: fromani github: @fromanirh _______________________________________________ Users mailing list -- users@ovirt.org<mailto:users@ovirt.org> To unsubscribe send an email to users-leave@ovirt.org<mailto:users-leave@ovirt.org> Dear Callum, can you send us also the engine.log? And which version of the engine are you using? Regards, Ales. -- ALES MUSIL INTERN - rhv network Red Hat EMEA<https://www.redhat.com/> amusil@redhat.com<mailto:amusil@redhat.com> IM: amusil [https://www.redhat.com/files/brand/email/sig-redhat.png]<https://red.ht/sig> _______________________________________________ Users mailing list -- users@ovirt.org<mailto:users@ovirt.org> To unsubscribe send an email to users-leave@ovirt.org<mailto:users-leave@ovirt.org>

On 05/21/2018 02:42 PM, Callum Smith wrote:
Dear Ales,
4.2.3,5-1
Through extensive testing done with the help of Martin Polednik the issues with the vGPU startup appear to be within the nvidia drivers, so continuation of that issue is now going through nvidia.
The issue with the nics MTU appears to have gone away with the upgrade of host to the version above.
Nice to know! If the MTU issue reappears, please file a bug -- Francesco Romani Senior SW Eng., Virtualization R&D Red Hat IRC: fromani github: @fromanirh
participants (3)
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Ales Musil
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Callum Smith
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Francesco Romani