On 01.06.2021 16:06, AL13N wrote: > Jan Beulich schreef op 2021-06-01 12:08: >> On 01.06.2021 09:36, AL13N wrote: >>> Not 100% it's a bug or something i did wrong, but, >>> >>> with xl create i start a PV with 3 pci passthroughs >>> >>> after wards, xl pci-list shows all 3 nicely >>> >>> looking at the domU boot logs, pcifront is only creating one pci >>> device >>> and lspci in the guest shows only 1 pci entry >>> >>> in at least 4.14.1 it still works. >> >> This reminds me of my report at >> https://lists.xen.org/archives/html/xen-devel/2021-03/msg00956.html >> >> Meanwhile the proposed pciback change has gone in upstream: >> https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/drivers/xen/xen-pciback?id=c81d3d24602540f65256f98831d0a25599ea6b87 >> >> I wasn't, however, aware that this may have been an issue going >> from 4.14.1 to 4.15.0, i.e. something that was presumably (as >> George also has just said) a regression in the tools. Or else I >> probably wouldn't have suggested taking care of this in Linux. >> Nevertheless you may want to give that change a try. > > Well, both tests have only different tools en hypervisor, no kernel was > changed between both tests, neither in dom0 or domU , so, it might not > be pciback?
Well, if the problem was introduced in the tools and this having been the reason for me running into the same or a similar issue, the patch may still address the issue, even if - in case it's a regression in the tools - it would have been better to also address the issue there. As said, when analyzing the issue I didn't have indications of changed tool stack behavior, i.e. I assumed the problem would have always been there. Jan
