Hi Andrew, On Tue, Mar 14, 2023 at 11:41:08AM +0000, Andrew Cooper wrote: > 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. The mentioned commit has been backported to 6.1.16, 5.15.100 and 5.10.173. Is the issue still reproducible with 6.1.16? Regards, Salvatore