-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA512 HW42: > Marek Marczykowski-Górecki: >> On Tue, May 31, 2016 at 05:39:20AM +0200, HW42 wrote: >>> Marek Marczykowski-Górecki: >>>> On Sun, May 29, 2016 at 04:48:18AM +0200, HW42 wrote: >>>>> Andrew David Wong: >>>>>> On 2016-05-28 11:16, HW42 wrote: >>>>>>> Hi, >>>>>> >>>>>>> with Xen 4.6.1-15.fc20 (which got recently uploaded to the testing >>>>>>> repo) VMs with attached PCI devices don't boot anymore (at least on >>>>>>> my machine). >>>>>> >>>>>>> When I try to boot a VM with attached PCI devices it crashes >>>>>>> immediately. Attached the xen dmesg log of a crash. >>>>>> >>>>>>> Both dom0 and the VM are running the 4.1.24-9.pvops.qubes kernel. >>>> >>>> Exactly the same versions works fine for me... >>>> >>>> Do you have anything in console log of that VM? If not, try starting it >>>> in debug mode (this enables earlyprintk). > >>> Even with debug mode nothing on console. > >>> Interestingly attaching during runtime seems to work. > >> Even when no device was attached at startup at all? > > Yes. But I forgot to mention that to actually work I needed to change > the kernel options. When booting without any attached device and the > default kernel options I got this error when attaching a device at > runtime: > > kernel: xen:swiotlb_xen: Warning: only able to allocate 1 MB for software > IO TLB > kernel: xen:swiotlb_xen: Cannot allocate Xen-SWIOTLB buffer > (rc:-12) > > So I added the 'iommu=soft swiotlb=8192' manually. Then I could attach > the device at runtime and it worked. > >> Try booting with attached device, but with empty kernel options (remove >> default "iommu=soft swiotlb=8192"). > > Crashes like with the default options. > >> If this doesn't help, try Xen 4.6.1-15.56.fc20 from unstable repo, it >> has e820_host option disabled (almost the only change between those >> packages, besides Xen version itself). Sources are here: >> https://github.com/marmarek/qubes-vmm-xen/tree/bug2038 > > This version works!
When upgrading to R3.2 I discovered that this problem only seems to exists when booting with AEM. I.e.: AEM, pci_e820_host=True => doesn't work AEM, pci_e820_host=False => works without AEM => works -----BEGIN PGP SIGNATURE----- iQIcBAEBCgAGBQJXdEB4AAoJEOSsySeKZGgWSWAP/R9JE9kNeGwSCHJI8OwF1GEz PEdmZjWm0c9jgGDL+C9hYurajaknrFKgkcdvtG4crowPPE8+0tVbSssL9FelvwJ1 yxvc2Ow/EC+UkP/EV1xMI+/wocMEOgiG1YCkxYJx1pndsL9yX5folK08PbKVsVyF V+6MCvQj/jEPqLULwk/iNLkNfAsk9udwvRslTUUjhTgZoWfEUsoaCD5jWOTmDgNk urmNVSUN/BCQDjWup4/t8SX6vc7k9KsP+v3aMITs5IFRxL8JpPx/6r8JDMQz56sh 4htAUSr6Nhqie1v4rSVaUk3VI3uWRckASvtE8+6bmKfQjhjMk5XNXAxMsZ95uGuq OpVCkutgcJwbl9h1kBNuz1kbCoQbXl9J5i2kY79ZME0n3hRXkvUfGC5aStpSpNSu u+khuGMaNWS+Soypir/4XmvhvzJ15gznrsh+bO1T2r/aOiFmQkiOb+wqalIjBdUo zRLaqVe0uMiFEWpomRnByivh0rDulzzXvQcGdnQa6I9V9g0rRuekOUEiAcLN0Zrm 9uxnWqHUkaKyC/7ImnOmv12Jh5K+s23q7F5h/mh62AC/FHJt+AcArQrMkDY6sWbG rZD6qdRo323IS0/vamrINaUEruwWThaCGQ3lrNI74nHUBY1wKOWqam4Guiclzrl9 ytex3m/94fKjyjOt54ZH =HsFV -----END PGP SIGNATURE----- -- You received this message because you are subscribed to the Google Groups "qubes-devel" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. To post to this group, send email to [email protected]. To view this discussion on the web visit https://groups.google.com/d/msgid/qubes-devel/b34bb224-5ba1-4950-7057-1eb43449e109%40ipsumj.de. For more options, visit https://groups.google.com/d/optout.
