NVIDIA
XenDesktop / GRID environment blue-screening on DirectX Driver
Hi Ricard and all. Just to update everybody on this issue. It turns out that Memory Balooning was enabled on these servers. vGPU today does not support Memory Ballooning. Here is an article on the subject: http://www.citrix.com/content/dam/citrix/en_us/documents/products-solutions/citrix-xenserver-dynamic-memory-control-quick-start-guide.pdf The reasons are that if you overprovision system memory, graphics performance will take a huge hit when the VMM is paging system memory on behalf of the guests. Once the servers had Memory Balooning disabled, the VMs seem to be stable now. We hope to support this feature at some point in the future.
Hi Ricard and all.
Just to update everybody on this issue. It turns out that Memory Balooning was enabled on these servers. vGPU today does not support Memory Ballooning. Here is an article on the subject: http://www.citrix.com/content/dam/citrix/en_us/documents/products-solutions/citrix-xenserver-dynamic-memory-control-quick-start-guide.pdf


The reasons are that if you overprovision system memory, graphics performance will take a huge hit when the VMM is paging system memory on behalf of the guests.

Once the servers had Memory Balooning disabled, the VMs seem to be stable now. We hope to support this feature at some point in the future.

#16
Posted 10/14/2014 04:27 PM   
I am having the same issue. I had one vm using DMC and disabled it but it still would not work. We have been using the k120q profile for testing and are now moving into production. after the 8th vm, we noticed we could not boot up additional vm's as if they cannot start using the next GPU. I get the same BSOD from dxgmms1.sys. My workaround has been to use the k100 profile. We are using the 331.59.01 driver on XS 6.2SP1 and XD 7.5. I have the GPU set to Maximum Density and have all vGPU profiles allowed. I noticed a new driver and vmanager is available but I do not that it resolve this issue. Is a possible bug or do I need an updated firmware? The k1 card was purchased through Dell in 4/13.
I am having the same issue. I had one vm using DMC and disabled it but it still would not work. We have been using the k120q profile for testing and are now moving into production. after the 8th vm, we noticed we could not boot up additional vm's as if they cannot start using the next GPU. I get the same BSOD from dxgmms1.sys. My workaround has been to use the k100 profile.
We are using the 331.59.01 driver on XS 6.2SP1 and XD 7.5. I have the GPU set to Maximum Density and have all vGPU profiles allowed.
I noticed a new driver and vmanager is available but I do not that it resolve this issue. Is a possible bug or do I need an updated firmware? The k1 card was purchased through Dell in 4/13.

#17
Posted 01/02/2015 09:38 PM   
Hi Chris, Can you update both the in VM driver and vGPU manager on XenServer to the latest version and then retest. The firmware changed in Nov 2013 to support multiple displays and all cards after this date will have shipped preloaded. If you did purchase your cards before this release, Dell have the firmware update posted on their site here http://www.dell.com/support/home/us/en/19/Drivers/DriversDetails?driverId=1YCT8 You will need physical access to the machine to boot it into Linux to carry out the firmware update.
Hi Chris,

Can you update both the in VM driver and vGPU manager on XenServer to the latest version and then retest.

The firmware changed in Nov 2013 to support multiple displays and all cards after this date will have shipped preloaded.

If you did purchase your cards before this release, Dell have the firmware update posted on their site here


http://www.dell.com/support/home/us/en/19/Drivers/DriversDetails?driverId=1YCT8


You will need physical access to the machine to boot it into Linux to carry out the firmware update.

Jason Southern, Regional Lead for ProVis Sales - EMEA: NVIDIA Ltd.

#18
Posted 01/06/2015 10:45 AM   
thanks for the reply. I will upgrade tonight or tomorrow. BTW, the preferred order for HDX3DPro and vGPU is 1)Nvidia driver 2)Xentools 3)VDA. upgrading the Nvidia driver does not require me to remove everything else correct?
thanks for the reply. I will upgrade tonight or tomorrow. BTW, the preferred order for HDX3DPro and vGPU is 1)Nvidia driver 2)Xentools 3)VDA. upgrading the Nvidia driver does not require me to remove everything else correct?

#19
Posted 01/06/2015 02:43 PM   
Hi folks, Luke, Steve, Jason, thanks for your persistence and sticking through this to help my colleague Richard get to a resolution. As there's some pretty good nuggets of information, not yet common knowledge in the industry, I've taken the time to write a blog post on this topic. For those that are interested, it can be found here: http://blog.itvce.com/2015/01/02/xenserver-dynamic-memory-and-nvidia-grid-vgpu-dont-do-it/ Thanks again for all your hard work and support! You guys rock, @youngtech
Hi folks,

Luke, Steve, Jason, thanks for your persistence and sticking through this to help my colleague Richard get to a resolution. As there's some pretty good nuggets of information, not yet common knowledge in the industry, I've taken the time to write a blog post on this topic. For those that are interested, it can be found here:

http://blog.itvce.com/2015/01/02/xenserver-dynamic-memory-and-nvidia-grid-vgpu-dont-do-it/


Thanks again for all your hard work and support! You guys rock,
@youngtech

#20
Posted 01/06/2015 04:04 PM   
[quote="chrisc75"]thanks for the reply. I will upgrade tonight or tomorrow. BTW, the preferred order for HDX3DPro and vGPU is 1)Nvidia driver 2)Xentools 3)VDA. upgrading the Nvidia driver does not require me to remove everything else correct? [/quote] That's the correct order for hte initial installation. Once installed you should be able to upgrade the driver without rolling anything else out.
chrisc75 said:thanks for the reply. I will upgrade tonight or tomorrow. BTW, the preferred order for HDX3DPro and vGPU is 1)Nvidia driver 2)Xentools 3)VDA. upgrading the Nvidia driver does not require me to remove everything else correct?


That's the correct order for hte initial installation.

Once installed you should be able to upgrade the driver without rolling anything else out.

Jason Southern, Regional Lead for ProVis Sales - EMEA: NVIDIA Ltd.

#21
Posted 01/06/2015 04:06 PM   
Dane, Thanks for all you efforts in the community to spread the word. Sharing this info really goes a long way to helping everyone. Cheers!
Dane,

Thanks for all you efforts in the community to spread the word.

Sharing this info really goes a long way to helping everyone.

Cheers!

Jason Southern, Regional Lead for ProVis Sales - EMEA: NVIDIA Ltd.

#22
Posted 01/06/2015 04:09 PM   
Full screen apps, we've released something to help with xd7.6 http://www.florisvanderploeg.com/fullscreen-applications-with-hdx-3d-pro-part-3/
Full screen apps, we've released something to help with xd7.6 http://www.florisvanderploeg.com/fullscreen-applications-with-hdx-3d-pro-part-3/

#23
Posted 01/17/2015 01:52 PM   
Some help on debugging bsod on xenServer http://blogs.citrix.com/2014/05/30/even-virtual-desktops-have-bsods-debugging-windows-guest-vms-on-citrix-xenserver-developer-to-developer/
Dynamic memory issue now fixed in XEnServer 6.5 http://blog.itvce.com/2015/01/13/xenserver-6-5-dynamic-memory-and-nvidia-grid-vgpu-now-fixed-in-6-5-go-for-it/

#25
Posted 01/17/2015 01:57 PM   
Hi, we have here the same issue with Q220 profile after updating of vGPU drivers: -------------------------------------- Supermicro Server 2x Grid K2 installed XenServer 6.5 Xendesktop 7.6 vDesktop OS: W7 Pro SP1 - Ultimate NVIDIA vGPU drivers: 6.2-340.57-341.08 -------------------------------------- I have re -installed the xs tools, vGPU drivers, VDA incl. hotfixes = No success. =>> Bluescreen after booting with Q220: "dxgmm1.sys address FFFFF880CDDC468 base at FFFFF8800CDB2000" How can i fix this ? Frank
Hi,

we have here the same issue with Q220 profile after updating of vGPU drivers:

--------------------------------------
Supermicro Server
2x Grid K2 installed
XenServer 6.5
Xendesktop 7.6
vDesktop OS: W7 Pro SP1 - Ultimate
NVIDIA vGPU drivers: 6.2-340.57-341.08
--------------------------------------

I have re -installed the xs tools, vGPU drivers, VDA incl. hotfixes = No success.

=>> Bluescreen after booting with Q220: "dxgmm1.sys address FFFFF880CDDC468 base at FFFFF8800CDB2000"

How can i fix this ?


Frank

#26
Posted 04/01/2015 05:10 PM   
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