On Sunday, 5 August 2018 03:11:57 MSK Mikko Perttunen wrote: > One potential issue is with host1x clients where userspace processes can > submit jobs with invalid memory accesses (addresses not mapped to > IOMMU). If when such a failure happens, we disable the DMA for the whole > host1x client, unrelated userspace processes may see failures even > though there is no problem with their jobs. Good point, I'll take a look at partial resurrection of patch [0]. Anyway I think it's still better to fail even the unrelated jobs, rather than to have corrupted memory. [0] https://github.com/grate-driver/linux/commit/ c0351a9d01491af2b2fefc162de1c2e4fcfaa94c#diff-20226be476307cb7ec9f60e26a9c30deR378 -- To unsubscribe from this list: send the line "unsubscribe linux-tegra" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
