Any other suggestions ?
I'm already running a later version of qemu (qemu-kvm-ev-2.12.0-33.1.el7_7.4)
than the one referenced (qemu-kvm-rhev-2.9.0-16) in
https://access.redhat.com/solutions/3423481 (from what I can see on that
page without a subscription).

Regards,
Brett

On Tue, 7 Apr 2020 at 11:56, Maton, Brett <[email protected]> wrote:

> I haven't got an active RHEL subscription so I can't view that solution
> unfortunately.
>
>
> Thanks for the log pointers though, looking in the qemu log I'm not
> surprised it's crashing...
>
> tcmalloc: large alloc 562949953421312 bytes == (nil) @  0x7f93c080b4ef
> 0x7f93c082b367 0x7f93d8310736 0x55efa0670ac8 0x55efa06718e5 0x55efa0621bae
> 0x55efa06287b6 0x55efa07f0de5 0x55efa07ecbdf 0x7f93bf7b3e65 0x7f93bf4dc88d
>
> (process:1374): GLib-ERROR **: 09:26:39.525: gmem.c:135: *failed to
> allocate 562949953421312 bytes*
> 2020-04-06 08:26:43.036+0000: shutting down, reason=crashed
> ...
> libvirt version: 4.5.0, package: 23.el7_7.6 (CentOS BuildSystem <
> http://bugs.centos.org>, 2020-03-17-23:39:10, x86-01.bsys.centos.org),
> qemu version: 2.12.0qemu-kvm-ev-2.12.0-33.1.el7_7.4, kernel:
> 3.10.0-1062.18.1.el7.x86_64
>
> 562949953421312 bytes is mighty big, nigh on 563 TB!
> The VM in question is allocated 4GB RAM and has a 60GB disk...
>
> Couldn't see any errors in the VDSM log at the time that qemu failed.
>
> On Tue, 7 Apr 2020 at 10:52, Shani Leviim <[email protected]> wrote:
>
>> Hi Brett,
>> According to [1], you can try to update the package qemu-kvm-rhev.
>> (Or yum update if there're more packages related need to be upgraded).
>>
>> You may also find some more information about that error on the vdsm log
>> (/var/log/vdsm/vdsm.log)
>> and the qemu log (/var/log/libvirt/qemu/vm_name.log)
>>
>> [1] https://access.redhat.com/solutions/3423481
>>
>>
>> *Regards,*
>>
>> *Shani Leviim*
>>
>>
>> On Mon, Apr 6, 2020 at 12:09 PM Maton, Brett <[email protected]>
>> wrote:
>>
>>> I recently added a Windows 10 Pro 64 bit (release 1909) VM, and I'm
>>> seeing a lot of failures when oVirt tries to move the VM to another host
>>> (triggered by load balancing),
>>>
>>> These errors are showing up in the UI event log
>>>
>>> Migration failed  (VM: <vm label>, Source: <host 1>, Destination: <host
>>> 2>).
>>>
>>> Followed by:
>>>
>>> VM <host> is down with error. Exit message: Lost connection with qemu
>>> process.
>>>
>>> Google returned some references to 'options kvm ignore_msrs=1' which
>>> I've added to /etc/modprobe/d/kvm.conf and restarted the hosts but that
>>> doesn't appear to have made a difference.
>>>
>>> Is this a known issue with Windows 10 guests?
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