[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index] Re: [Xen-devel] [Pkg-xen-devel] Bug#795330: Suggests noapic but doesn't support it
Control: tag -1 upstream Jan/Andy & David, Is there anything we can improve here on either the Xen or kernel side do you think? On Thu, 2015-08-13 at 00:59 +0200, Guido GÃnther wrote: > Package: xen-hypervisor-4.5-amd64 > Severity: normal > > Hi, > when running xen inside of kvm the hypervisor fails to set up the proper > IRQ routing and suggests to use noapic. FTR, it seems to say: panic("IO-APIC + timer doesn't work! Boot with apic_verbosity=debug " "and send a report. Then try booting with the 'noapic' option"); Did you also try the first thing it suggested? What was the result? > If you add this via > > GRUB_CMDLINE_XEN_DEFAULT > > it will boot futher but then report that noapic isn't supported. Is this the kernel saying that or Xen? Do you have full boot logs? I think it is the kernel since I can't find such a message in Xen and http://xenbits.xen.org/docs/unstable/misc/xen-command-line.html says for the noapic option: "This is not recommended with pvops type kernels." > So please make Xen not claim to support noapic if it doesn't I think ultimately this is down to different components being able to support different things, e.g. Xen's advice might be fine with a FreeBSD dom0 or some other version of Linux. > (the issue > was finally resolved by removeing all virtion devices and doubling the ^virtio ? > hypervisors RAM so the suggestion was misplaced anyways). I can see how the virtio thing might make the KVM guest look different to Xen, but the RAM thing seems orthogonal. Thanks, Ian. _______________________________________________ Xen-devel mailing list Xen-devel@xxxxxxxxxxxxx http://lists.xen.org/xen-devel
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