1. Release Notes

These Release Notes summarize current status, information on validated platforms, and known issues with NVIDIA virtual GPU software and asscoiated hardware on Red Hat Enterprise Linux with KVM.

The releases in this release family of NVIDIA virtual GPU software include the software listed in the following table:

Software 5.0 5.1
NVIDIA Windows driver 385.41 385.90
NVIDIA Linux driver version 384.73 384.99

Updates in Release 5.0

  • Support for GPUs based on the NVIDIA® Pascal™ architecture
  • Software enforcement of licensing requirements
  • Miscellaneous bug fixes

Updates in Release 5.1

  • Support for the Tesla P100 12GB GPU
  • Miscellaneous bug fixes

2. Validated Platforms

This release of NVIDIA virtual GPU software provides support for several NVIDIA GPUs on validated server hardware platforms, Red Hat Enterprise Linux with KVM hypervisor software versions, and guest operating systems.

Supported NVIDIA GPUs and Validated Server Platforms

This release of NVIDIA virtual GPU software provides support for the following NVIDIA GPUs on Red Hat Enterprise Linux with KVM, running on validated server hardware platforms:

  • Tesla M6
  • Tesla M10
  • Tesla M60
  • Tesla P4
  • Tesla P6
  • Tesla P40
  • Tesla P100
  • Since 5.1: Tesla P100 12GB

For a list of validated server platforms, refer to NVIDIA GRID Certified Servers.

Hypervisor Software Versions

This release has been tested with the following hypervisor software versions:

Software Versions Tested Notes

Red Hat Enterprise Linux with KVM

7.0, 7.1 Only the following NVIDIA GPUs are supported:
  • Tesla M6
  • Tesla M10
  • Tesla M60

Red Hat Enterprise Linux with KVM

7.2, 7.3 All NVIDIA GPUs that support NVIDIA virtual GPU software are supported.

Guest OS Support

NVIDIA virtual GPU software supports several Windows releases and Linux distributions as a guest OS using GPU pass-through.

Note:

Use only a guest OS release that is listed as supported by NVIDIA virtual GPU software with your virtualization software. To be listed as supported, a guest OS release must be supported not only by NVIDIA virtual GPU software, but also by your virtualization software. NVIDIA cannot support guest OS releases that your virtualization software does not support.

In pass-through mode, GPUs based on the Pascal architecture support only 64-bit guest operating systems. No 32-bit guest operating systems are supported in pass-through mode for these GPUs.

Windows Guest OS Support

Note: Red Hat Enterprise Linux with KVM supports Windows guest operating systems only under specific Red Hat subscription programs. For details, see Certified guest operating systems for Red Hat Enterprise Linux with KVM.

NVIDIA virtual GPU software supports the following Windows releases as a guest OS on Red Hat Enterprise Linux with KVM:

  • Windows Server 2012 R2
  • Windows Server 2008 R2 on Tesla M6, Tesla M10, and Tesla M60 GPUs only
  • Windows 10 RS2 (64-bit)
  • Windows 10 RS2 (32-bit) on Tesla M6, Tesla M10, and Tesla M60 GPUs only
  • Windows 8.1 Update (64-bit)
  • Windows 8.1 Update (32-bit) on Tesla M6, Tesla M10, and Tesla M60 GPUs only
  • Windows 7 (32/64-bit) on Tesla M6, Tesla M10, and Tesla M60 GPUs only

Linux Guest OS Support

NVIDIA virtual GPU software supports the following 64-bit Linux distributions as a guest OS on Red Hat Enterprise Linux with KVM:

  • Red Hat Enterprise Linux 7.0-7.3
  • CentOS 7.0-7.3
  • Red Hat Enterprise Linux 6.6
  • CentOS 6.6

3. Known Issues

Multiple display heads are not detected by Ubuntu 14.04 guest VMs

Description

After an Ubuntu 14.04 guest VM has acquired a license, multiple display heads connected to the VM are not detected.

Version

Ubuntu 14.04

Workaround

To see all the connected display heads after the VM has acquired a license, open the Displays settings window and click Detect displays.

Status

Open

Ref. #

200334648

Since 5.1: On GPUs based on the Pascal architecture, Ubuntu 16.04 VMs run slowly after acquiring a license

Description

On GPUs based on the Pascal architecture, Ubuntu VMs to which an NVIDIA vGPU or pass-through GPU is assigned run slowly after acquiring a license. Ubuntu VMs that have not been assigned an NVIDIA vGPUor pass-through GPU run noticeably faster.

Workaround

After the VM has acquired a license, restart the lightdm service.

Status

Open.

Ref. #

200359618

Resolution is not updated after a VM acquires a license and is restarted

Description

In a Red Enterprise Linux 7.3 guest VM, an increase in resolution from 1024×768 to 2560×1600 is not applied after a license is acquired and the gridd service is restarted. This issue occurs if the multimonitor parameter is added to the xorg.conf file.

Version

Red Enterprise Linux 7.3

Status

Open

Ref. #

200275925

A segmentation fault in DBus code causes nvidia-gridd to exit on Red Hat Enterprise Linux and CentOS

Description

On Red Hat Enterprise Linux 6.8 and 6.9, and CentOS 6.8 and 6.9, a segmentation fault in DBus code causes the nvidia-gridd service to exit.

The nvidia-gridd service uses DBus for communication with NVIDIA X Server Settings to display licensing information through the Manage License page. Disabling the GUI for licensing resolves this issue.

Since 5.1: The GUI for licensing is disabled by default.

Version

Red Hat Enterprise Linux 6.8 and 6.9

CentOS 6.8 and 6.9

NVIDIA virtual GPU software 5.0

5.0 Only: Workaround

This workaround requires sudo privileges.

  1. As root, edit the /etc/nvidia/gridd.conf file to set the EnableUI option to FALSE.

  2. Start the nvidia-gridd service.

    # sudo service nvidia-gridd start
  3. Confirm that the nvidia-gridd service has obtained a license by examining the log messages written to /var/log/messages.

    # sudo grep gridd /var/log/messages
    …
    Aug 5 15:40:06 localhost nvidia-gridd: Started (4293)
    Aug 5 15:40:24 localhost nvidia-gridd: License acquired successfully.

Status

Open

Ref. #

  • 200358191
  • 200319854
  • 1895945

Since 5.1: The nvidia-gridd service fails because the required configuration is not provided

Description

The nvidia-gridd service exits with an error because the required configuration is not provided.

The known issue described in A segmentation fault in DBus code causes nvidia-gridd to exit on Red Hat Enterprise Linux and CentOS causes the NVIDIA X Server Settings page for managing licensing settings through a GUI to be disabled by default. As a result, if the required license configuration is not provided through the configuration file, the service exits with an error.

Details of the error can be obtained by checking the status of the nvidia-gridd service.

# service nvidia-gridd status
nvidia-gridd.service - NVIDIA Grid Daemon
Loaded: loaded (/usr/lib/systemd/system/nvidia-gridd.service; enabled; vendor preset: disabled)
   Active: failed (Result: exit-code) since Wed 2017-11-01 19:25:07 IST; 27s ago
  Process: 11990 ExecStopPost=/bin/rm -rf /var/run/nvidia-gridd (code=exited, status=0/SUCCESS)
  Process: 11905 ExecStart=/usr/bin/nvidia-gridd (code=exited, status=0/SUCCESS)
Main PID: 11906 (code=exited, status=1/FAILURE)
Nov 01 19:24:35 localhost.localdomain systemd[1]: Starting NVIDIA Grid Daemon...
Nov 01 19:24:35 localhost.localdomain nvidia-gridd[11906]: Started (11906)
Nov 01 19:24:35 localhost.localdomain systemd[1]: Started NVIDIA Grid Daemon.
Nov 01 19:24:36 localhost.localdomain nvidia-gridd[11906]:  Failed to open config file : /etc/nvidia/gridd.conf error :No such file or directory
Nov 01 19:25:07 localhost.localdomain nvidia-gridd[11906]: Service provider detection complete.
Nov 01 19:25:07 localhost.localdomain nvidia-gridd[11906]: Shutdown (11906)
Nov 01 19:25:07 localhost.localdomain systemd[1]: nvidia-gridd.service: main process exited, code=exited, status=1/FAILURE
Nov 01 19:25:07 localhost.localdomain systemd[1]: Unit nvidia-gridd.service entered failed state.
Nov 01 19:25:07 localhost.localdomain systemd[1]: nvidia-gridd.service failed.

Workaround

Use a configuration file to license NVIDIA virtual GPU software on Linux as explained in Virtual GPU Client Licensing User Guide.

Status

Open

Ref. #

200359469

Since 5.1: The Apply button is disabled after change to unlicensed mode

Description

After the mode is changed from licensed Quadro Virtual Datacenter Workstation Edition mode to Unlicensed Tesla mode, the Apply button on the Manage GRID License page is disabled. As a result, NVIDIA X Server Settings cannot be used to switch to Tesla (Unlicensed) mode on a licensed system.

Workaround

  1. Start NVIDIA X Server Settings by using the method for launching applications provided by your Linux distribution.
  2. In the NVIDIA X Server Settings window that opens, click Manage GRID License.
  3. Clear the Primary Server field.
  4. Select the Tesla (unlicensed) option.
  5. Click Apply.

Status

Open

Ref. #

200359624

Licenses remain checked out when VMs are forcibly powered off

Description

NVIDIA virtual GPU software licenses remain checked out on the license server when non-persistent VMs are forcibly powered off.

The NVIDIA service running in a VM returns checked out licenses when the VM is shut down. In environments where non-persistent licensed VMs are not cleanly shut down, licenses on the license server can become exhausted. For example, this issue can occur in automated test environments where VMs are frequently changing and are not guaranteed to be cleanly shut down. The licenses from such VMs remain checked out against their MAC address for seven days before they time out and become available to other VMs.

Resolution

If VMs are routinely being powered off without clean shutdown in your environment, you can avoid this issue by shortening the license borrow period. To shorten the license borrow period, set the LicenseInterval configuration setting in your VM image. For details, refer to Virtual GPU Client Licensing User Guide.

Status

Closed

Ref. #

1694975

Notices

Notice

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Information furnished is believed to be accurate and reliable. However, NVIDIA Corporation assumes no responsibility for the consequences of use of such information or for any infringement of patents or other rights of third parties that may result from its use. No license is granted by implication of otherwise under any patent rights of NVIDIA Corporation. Specifications mentioned in this publication are subject to change without notice. This publication supersedes and replaces all other information previously supplied. NVIDIA Corporation products are not authorized as critical components in life support devices or systems without express written approval of NVIDIA Corporation.

HDMI

HDMI, the HDMI logo, and High-Definition Multimedia Interface are trademarks or registered trademarks of HDMI Licensing LLC.

OpenCL

OpenCL is a trademark of Apple Inc. used under license to the Khronos Group Inc.

Trademarks

NVIDIA, the NVIDIA logo, NVIDIA GRID, vGPU, Pascal, Quadro, and Tesla are trademarks or registered trademarks of NVIDIA Corporation in the U.S. and other countries. Other company and product names may be trademarks of the respective companies with which they are associated.