Messages in this thread | | | Subject | Re: [Issue]platform/x86: iommu: System can't shutdown because iommu driver keeps checking the status of DMA_GSTS_TES | From | Lu Baolu <> | Date | Mon, 15 Jun 2020 15:20:02 +0800 |
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Hi Koba Ko,
On 2020/6/15 11:19, Koba Ko wrote: > hi All, > I have a machine and there's only intel gpu. > the secureboot and vt-d is enabled in BIOS. > On the Ubuntu desktop, I do s2idle first and restart the machine. > The machine can't restart successfully, so I need to press the > power button to shutdown. > I tried each of the following and the issue can't be triggered. > 1. disable secure boot in BIOS. > 2. intel_iommu=off. > 3. intel_iomm=igfx_off. > 4. nomodeset > 5. i915.modeset=0. > > After I investigate further, find inte_iommu keeps checking the status > of DMA_GSTS_TES. > During the procedure of restart, the driver would disable iommu > translation and > check status of DMA_GSTS_TES until status of DMA_GSTS_TES is 0. > > If you need more information, I can provide it.
Do you mind telling what platform is it?
Best regards, baolu
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