[vfio-users] Nvidia glitches on Windows 10 guest

Brett Peckinpaugh bp10 at erylflynn.com
Tue Jun 21 17:37:50 UTC 2016


Are you using huge pages? 

On June 21, 2016 10:31:22 AM PDT, Berillions <berillions at gmail.com> wrote:
>Hi guys,
>
>I found where come from the issue. I have really in my PC 12Gb Memory
>RAM
>(but the issue exist with real 8Gb Memory Ram).
>
>If i give 4Gb or more to the VM, i have the glitches, corruption and
>freeze. But, if i give only 2Gb for the guest the issue does not exist
>and
>i can use Win10 correctly and play at games without problem.
>
>Any ideas to find a solution to allocate more Memory Ram without to
>have
>this issue ? (Because i would like to replace my 12GB (3x4Gb) by a
>1x16Gb)
>
>Thanks by advance,
>Maxime
>
>2016-06-16 12:52 GMT+02:00 thibaut noah <thibaut.noah at gmail.com>:
>
>> Quick question, are you posting a new email everytime? Because i got
>like
>> 2 or 3 of those on the same request, very annoying.
>> Never heard about this kind of issue though, virtual net device load
>> should be insignificant.
>>
>> 2016-06-16 12:17 GMT+02:00 Quentin Deldycke
><quentindeldycke at gmail.com>:
>>
>>> Possibly because managing a virtual device is expensive in cpu time?
>>> Possibly because these cpus who are managing these interrupts or
>shared
>>> with the vm?
>>> Possibly because your dpc is bad when having a network interface?
>>>
>>> Much possibilities, no information, much things already answered in
>this
>>> mailing list.
>>>
>>> First of all:
>>>  - dmesg
>>>  - dps latency on the guest
>>>  - xml file
>>>  - cpu command line
>>>  - core isolation or equivalent
>>>
>>>
>>> Note that these catch lines are not the thing people like to read:
>"Nobody
>>> to help me how to resolv this issue ? "
>>>
>>> --
>>> Deldycke Quentin
>>>
>>>
>>> On 16 June 2016 at 11:46, Berillions <berillions at gmail.com> wrote:
>>>
>>>> Nobody to help me how to resolv this issue ?
>>>> Or where i must to search to give your more informations.
>>>>
>>>> I have my linux system on a ssd and the qemu image file on a HDD.
>>>>
>>>> I don't understand why Network driver reduce and finally freeze the
>>>> system. Uninstall it and the Win10 works great.
>>>>
>>>>  I need your help guys.
>>>>
>>>> _______________________________________________
>>>> vfio-users mailing list
>>>> vfio-users at redhat.com
>>>> https://www.redhat.com/mailman/listinfo/vfio-users
>>>>
>>>>
>>>
>>> _______________________________________________
>>> vfio-users mailing list
>>> vfio-users at redhat.com
>>> https://www.redhat.com/mailman/listinfo/vfio-users
>>>
>>>
>>
>
>
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>
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