On 3/12/19 5:04 PM, Juergen Gross wrote: > On 11/03/2019 20:50, Hans van Kranenburg wrote: >> On 3/11/19 7:34 AM, Juergen Gross wrote: >>> >>> I'm not sure. Patch 3 of this series is basically already there (see >>> commit c6d4381220a0087ce19dbf6984d92c451bd6b364). So maybe all we need >>> is patch 4, which should really be easy to do? >>> >>> Hans, could you give it a try? You'd need to use a 4.20 kernel at least. >>> I can do the official patch posting in case you confirm it working. >> >> Ehm ok, well... This is interesting. >> >> I just built a 4.20.13 (without the patch), and I did it from the Debian >> kernel team repo, because then I just get all latest config options like >> I would get them in Debian. >> >> I rebooted the HP Z820 with it (with Xen 4.11) and I don't see any >> errors similar to the ones I pasted earlier. >> >> I haven't been running any domU on it yet (just installed it), but this >> is not what I expected. > > Well, commit c6d4381220a0087ce19dbf6984d92c451bd6b364 is part of a > rather large series making the dma interface cleaner and using it more > correctly where appropriate. Maybe your use case is covered by this > series already.
It seems so. That's good, of course, but it also means that I cannot be of any use here any more to test the additional proposed change. ;] Except, for trying it to see if it won't introduce more regressions and explosions, if you want me to. Hans
