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    SubjectRe: [PATCH 19/21] i386 Kprobes semaphore fix
    On Tuesday 08 November 2005 14:36, Zachary Amsden wrote:

    > One can imagine clever uses for ptrace to do, say user space
    > virtualization (since I'm on the topic), or other neat things. So there
    > is nothing really wrong about having the fully correct EIP conversion
    > (and here we shouldn't need to worry about races causing some issues
    > with strict correctness, since there can be one external control thread).

    Well, the code still scaries me a bit, but ok. x86-64 left at least one case
    intentionally out.

    > But were kprobes even inteneded for userspace? There are races here
    > that are difficult to close without some heavy machinery, and I would
    > rather not put the machinery in place if simplifying the code is the
    > right answer.

    I believe user space kprobes are being worked on by some IBM India folks yes.

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