Jun 26 08:01:25 srvxen06f vgpu-3: error: vmiop_log: (0x0): VGPU message 6 failed, result code: 0x1a Jun 26 08:01:25 srvxen06f vgpu-3: error: vmiop_log: (0x0): Guest attempted to allocate channel above its max channel limit 0xfb When the channels allocated to a vGPU are exhausted and the guest VM fails to allocate aĬhannel, the following errors are reported on the hypervisor host or in an NVIDIA bug Proportional to the maximum number of vGPUs allowed on the physical GPU. Number of channels and the number of channels allocated to each vGPU is inversely The vGPU is assigned fails to allocate a channel to the vGPU. Issues occur when the channels allocated to a vGPU are exhausted and the guest VM to which For example, if you are assigning four GPUs to a VM thatĮach use a total of 128 GiB of BAR1 memory, the amount of MMIO space pciPassthru.64bitMMIOSizeGB = " mmio-space-in-gb" mmio-space-in-gb The required amount of MMIO space in GiB that you calculated Allocate the required amount of MMIO space to the VM.Under the VM settings, choose VM Options.MMIO space that is required for all the GPUs is 4⨯128 GiB, which equals That you are assigning in pass-through mode to the VM.įor example, if you are assigning four GPUs to a VM, the amount of
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