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    SubjectRe: linux-next: add utrace tree
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    On Wed, 2010-01-27 at 09:42 -0800, H. Peter Anvin wrote:
    > On 01/27/2010 05:59 AM, Steven Rostedt wrote:

    > > I think the issue was that ring 0 was never meant to do that, where as,
    > > ring 3 does it all the time. Doesn't the dynamic library modify its
    > > text?
    > >
    >
    > No, it has nothing to do with ring. It has to do with modifying code
    > that another CPU could be executing at the same time, and with modifying
    > code on the same processor through another virtual alias (they are
    > different issues.) The same issues apply regardless of the CPL of the
    > processor.

    Thanks for clarifying.

    -- Steve




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