Messages in this thread | | | Subject | Re: AMD IOMMU causing filesystem corruption | From | Samuel Sieb <> | Date | Wed, 26 Apr 2017 14:31:40 -0700 |
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On 04/26/2017 03:14 AM, Joerg Roedel wrote: > On Tue, Apr 25, 2017 at 10:55:24AM -0700, Samuel Sieb wrote: >> On 04/07/2017 03:27 AM, Joerg Roedel wrote: >>> Also, please try the attached debug-diff on your kernel. It completly >>> disables the use of ATS in the amd-iommu driver. >>> >> I applied this patch to 4.11.0 rc8 and then stress tested the laptop >> with another kernel build while running graphical applications and >> there appears to be no damage to the filesystem. Is there any way >> to determine if ATS is enabled or disabled? > > Great, thanks for testing the patch. The lspci tool should be able to > tell you whether the ATS capability is enabled on the GPU. With a > 'lspci -vvv -s <GPUDEV>" should give you that info. > This test was done with the patch that always disables ATS. Which is the current patch to selectively disable it? The last patch I tried didn't seem to work.
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