>>> On 09.09.15 at 19:02, <kiviniemi.valtt...@gmail.com> wrote: > Well, now the system is booting but would you have any idea why the system > only boots with iommu=verbose,debug but not with iommu=1? If I pass iommu=1 > as a boot parameter it fails detecting SATA drives (AHCI) with "ata1.00: > failed command: IDENTIFY DEVICE" error. Also USB fails with fatal error, > "ehci_hcd 0000:xx:xxx:xx: HC died".
Short of logs thereof - no explanation other than the extra printing possibly changing timing somewhere (albeit one would think that while the printing happens timing shouldn't be that much of an issue). > Also if I try to pass dom0pvh=1 it also crashes with iommu=verbose,debug - > screen just goes completely black and system restarts itself - no way to > see any error messages at all. Likely a different problem, and definitely one where again we'd need to see full logs of. You may want to try "noreboot" as a command line option to see whether that makes the machine hang instead of reboot (which would be an indication that proper logging will give us useful insight). Jan _______________________________________________ Xen-devel mailing list Xen-devel@lists.xen.org http://lists.xen.org/xen-devel
