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SubjectRe: [PATCH 2/4] ptrace: remove the extra wake_up_process() from ptrace_detach()
Date
Of course I agree that the current code is wrong here.  But I'm still not
at all clear on what practical compatibility problems it introduces. This
change is OK if and only if we are really making the only area clean and
well-defined in the same release cycle. It doesn't really matter that the
old behavior was ill-defined and unreliable in absolute terms, because the
practical userland experience of it in real-world cases is what userland
has grown to expect. We can't break any such expectations until we have a
clear answer about how to solve the problems correctly.

Thanks,
Roland


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