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    SubjectRe: [PATCH 03/10] ptrace: implement PTRACE_SEIZE
    Hello, Oleg.

    On Tue, May 31, 2011 at 09:08:09PM +0200, Oleg Nesterov wrote:
    > Speaking of this particular problem, it is really annoying. The leader
    > exits, and it even notifies the tracer. For what? waitpid() returns 0
    > or hangs depending on WNOHANG, any ptrace() request fails with ESRCH.

    Hmm... can't we just allow PTRACE_DETACH after PTRACE_EVENT_EXIT is
    reported? It doesn't involve changes to any visible behavior (other
    than allowing DETACH of course) and we don't lose anything. Haven't
    really thought about the implementation but I don't think this would
    be too difficult.



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