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-   -   [BUG] nvidia-290.03 doesn't like IOMMU/DMAR features (http://www.nvnews.net/vbulletin/showthread.php?t=167908)

mlauss 10-28-11 02:11 AM

[BUG] nvidia-290.03 doesn't like IOMMU/DMAR features
 
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Hi,

I've a brand new Dell M6600 with a Quadro 4000M in it; X hangs during startup and the X driver
complains with the following:
[ 615.863] (EE) NVIDIA(0): EVO Push buffer channel allocation failed
[ 615.863] (EE) NVIDIA(0): *** Aborting ***
[ 615.863] (EE) NVIDIA(0): Failed to allocate EVO DMA push buffer
[ 615.863] (EE) NVIDIA(0): *** Aborting ***

I "fixed" it by disabling all IOMMU/DMAR and INTR_REMAP features in the kernel.
Please have a look at this, as I'd like to make use of the VT features.
Attached a bug report in the non-working case.

Thanks!


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