On 14/03/2023 11:23 am, Juergen Gross wrote: > On 14.03.23 12:17, Joost Roeleveld wrote: >>> 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. >> >> Hi all, >> >> Is there anything that can be done to get this fixed in xen and the >> kernel somehow? >> I keep having to manually patch the mpt3sas driver to prevent it from >> being able to switch to 32bit mode each time I upgrade the kernel. > > Just use 5.10.173. Its still broken even in 6.1 We've just stumbled over this yet again in XenServer. ~Andrew
