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Re: Report in downstream Debian: mpt3sas broken with xen dom0 with update to 5.10.149 in 5.10.y.



On Mon, Oct 24, 2022 at 05:28:05PM +0000, Andrew Cooper wrote:
> I don't know exactly how this translates to Linux internals, but most
> devices are fine and it's routinely the mpt2/3sas drivers which
> encounter problems.  It would be lovely if we could get to the bottom of
> this for once and for all.

So to summarize my two mails:  I think te use of dma_get_required_mask
in mpt3sas is wrong, and the dma_get_required_mask return value from
xen-swiotlb is also wrong.  Fixing either one should fix this problem,
and I think we should fix both.



 


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