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    SubjectRe: Virtual Machines, JVM in kernel, hot-swapped kernel
    Followup to:  <>
    By author: Alexander Kjeldaas <>
    In newsgroup:
    > You don't want a VM in the kernel, but you might want a system level
    > VM - a single VM used by all java-programs what will do caching and
    > optimalization etc. Other than that, it is interesting to see if
    > there are any new services needed by a VM that the kernel should
    > provide. I know of one such service: user-level exceptions. Being
    > able to handle a memory protection exception without the
    > user->kernel->user context switches makes certain GC/VM-tricks much
    > less expensive.

    Hmm... I don't know if you can do that and still maintain OS
    security; anyone remember the "sliding password" security hole?

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