[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index] Re: [Xen-devel] crash tool - problem with new Xen linear virtual mapped sparse p2m list
On 24/11/15 08:59, Jan Beulich wrote: >>>> On 24.11.15 at 07:55, <JGross@xxxxxxxx> wrote: >> What about: >> >> 4) Instead of relying on the kernel maintained p2m list for m2p >> conversion use the hypervisor maintained m2p list which should be >> available in the dump as well. This is the way the alive kernel is >> working, so mimic it during crash dump analysis. > > I fully agree; I have to admit that looking at the p2m when doing page > table walks for a PV Dom0 (having all machine addresses in page table > entries) seems kind of backwards. (But I say this knowing nothing > about the tool.) > I don't think we can reliably use the m2p for PV domains because PV domains don't always issue a m2p update hypercall when they change their p2m mapping. Malcolm > _______________________________________________ > Xen-devel mailing list > Xen-devel@xxxxxxxxxxxxx > http://lists.xen.org/xen-devel > _______________________________________________ Xen-devel mailing list Xen-devel@xxxxxxxxxxxxx http://lists.xen.org/xen-devel
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