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.
