[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index] [Xen-devel] [PATCH] x86-64 linux: another adjustment to vmalloc fault handling
Changeset 8847 improved things, but doesn't generally work. We namely experienced problems (when we originally tried the same change) with accesses to machine_to_phys_mapping, which (in mfn_to_pfn) is specifically allowed to fault. Hence there should not be attempts to fix up faults within the hypervisor range (as for any page table entries obtained there no m2p translation exists for the guest, resulting in bogus physical addresses getting used for further fault processing, frequently leading to nested faults). Jan Attachment:
xenlinux-x86_64-vmalloc_fault.patch _______________________________________________ Xen-devel mailing list Xen-devel@xxxxxxxxxxxxxxxxxxx http://lists.xensource.com/xen-devel
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