Messages in this thread | | | Date | Wed, 21 Sep 2022 10:43:40 +0800 | Subject | Re: [PATCH 1/1] Revert "iommu/vt-d: Fix possible recursive locking in intel_iommu_init()" | From | Baolu Lu <> |
| |
On 9/20/22 4:17 PM, Lu Baolu wrote: > This reverts commit 9cd4f1434479f1ac25c440c421fbf52069079914. > > Some issues were reported on the original commit. Some thunderbolt devices > don't work anymore due to the following DMA fault. > > DMAR: DRHD: handling fault status reg 2 > DMAR: [INTR-REMAP] Request device [09:00.0] fault index 0x8080 > [fault reason 0x25] > Blocked a compatibility format interrupt request > > Bring it back for now to avoid functional regression. > > Fixes: 9cd4f1434479f ("iommu/vt-d: Fix possible recursive locking in intel_iommu_init()") > Link:https://lore.kernel.org/linux-iommu/485A6EA5-6D58-42EA-B298-8571E97422DE@getmailspring.com/ > Link:https://bugzilla.kernel.org/show_bug.cgi?id=216497 > Cc: Mika Westerberg<mika.westerberg@linux.intel.com> > Reported-and-tested-by: George Hilliard<thirtythreeforty@gmail.com> > Signed-off-by: Lu Baolu<baolu.lu@linux.intel.com>
Queued for v6.0.
https://lore.kernel.org/linux-iommu/20220921024054.3570256-1-baolu.lu@linux.intel.com
Best regards, baolu
| |