On Sun, 2012-08-12 at 17:25 +0200, Stephan Beyer wrote: > Package: xen-hypervisor-4.1-amd64 > Version: 4.1.3~rc1+hg-20120614.a9c0a89c08f2-5 > Severity: important > > I updated from xen-hypervisor-4.0-amd64 to xen-hypervisor-4.1-amd64 > and the system did not boot anymore (Xen panic). > A downgrade made the system work again. > I cannot paste the boot error messages but the main message was: > > Xen BUG at pci_amd_iommu.c:33
The BUG is "BUG_ON ( bdf >= ivrs_bdf_entries );" and ivrs_bdf_entries has come from ACPI -- do you have the latest firmware in this machine? I'm afraid that without some more information (e.g. a stack trace) I think this is going to be pretty hard to track down. Can you either configure a serial console (http://wiki.xen.org/wiki/Xen_Serial_Console) or use the "noreboot" option on the hypervisor command line to capture a digital picture of the error. Thanks, Ian. -- To UNSUBSCRIBE, email to debian-bugs-dist-requ...@lists.debian.org with a subject of "unsubscribe". Trouble? Contact listmas...@lists.debian.org
