Re: [PATCH] iommu/amd: Fix unity mapping initialization race

On 2016年07月07日 00:00, Joerg Roedel wrote: From: Joerg Roedel There is a race condition in the AMD IOMMU init code that causes requested unity mappings to be blocked by the IOMMU for a short period of time. This results on boot failures and IO_PAGE_FAULTs on some machines.

Re: [Regression] Amd-Vi + ivrs_ioapic cause kernel oops (4.4, 4.7 fail 3.9 works)

after applying patch " [PATCH] iommu/amd: Fix unity mapping initialization race" https://lists.linuxfoundation.org/pipermail/iommu/2016-July/017781.html kernel boots but then freeze in Login Manager