[lkml]   [2011]   [Jun]   [10]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
Messages in this thread
    SubjectRe: [Xen-devel] Possible shadow bug
    At 11:01 +0100 on 10 Jun (1307703699), Tim Deegan wrote:
    > Actually, looking at the disassembly you posted, it looks more like it
    > might be an emulator bug in Xen; if Xen finds itself emulating the IMUL
    > instruction and either gets the logic wrong or does the memory access
    > wrong, it could cause that failure. And one reason that Xen emulates
    > instructions is if the memory operand is on a pagetable that's shadowed
    > (which might be a page that was recently a pagetable).
    > ISTR that even though the RHEL xen reports a 3.0.x version it has quite
    > a lot of backports in it. Does it have this patch?

    Oops, that URL doesn't work; I meant this:


    Tim Deegan <>
    Principal Software Engineer, Xen Platform Team
    Citrix Systems UK Ltd. (Company #02937203, SL9 0BG)

     \ /
      Last update: 2011-06-10 12:13    [W:0.030 / U:19.700 seconds]
    ©2003-2017 Jasper Spaans. hosted at Digital OceanAdvertise on this site