This bug is missing log files that will aid in diagnosing the problem.
While running an Ubuntu kernel (not a mainline or third-party kernel)
please enter the following command in a terminal window:
apport-collect 1969091
and then change the status of the bug to 'Confirmed'.
If, due to the nature of the issue you have encountered, you are unable
to run this command, please add a comment stating that fact and change
the bug status to 'Confirmed'.
This change has been made by an automated script, maintained by the
Ubuntu Kernel Team.
** Changed in: linux (Ubuntu)
Status: New => Incomplete
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https://bugs.launchpad.net/bugs/1969091
Title:
Fixes for dma-iommu swiotlb bounce buffers
Status in linux package in Ubuntu:
Incomplete
Bug description:
https://lore.kernel.org/all/20210929023300.335969-1-steve...@google.com/
landed to v5.16 and is being requested to backport to v5.15.y in
https://lore.kernel.org/stable/bl1pr12mb5157cd6b2c9d6b8525cfad0ee2...@bl1pr12mb5157.namprd12.prod.outlook.com/T/#u
.
Related commits are:
08ae5d4a1ae9 iommu/dma: Fix sync_sg with swiotlb
06e620345d54 iommu/dma: Fix arch_sync_dma for map
ee9d4097cc14 iommu/dma: Skip extra sync during unmap w/swiotlb
9b49bbc2c4df iommu/dma: Fold _swiotlb helpers into callers
2e727bffbe93 iommu/dma: Check CONFIG_SWIOTLB more broadly
e81e99bacc9f swiotlb: Support aligned swiotlb buffers
2cbc61a1b166 iommu/dma: Account for min_align_mask w/swiotlb
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