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SubjectRe: [PATCH 1/2] x86_64 ia32 ptrace vs -ENOSYS
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> It is unclear (to me) what are the consequences of this problem?  What
> are the user-visible effects of the fix?

I don't know off hand of something that cares. (I have a test case, but
it's just contrived for the purpose.) Something like UML could use this to
approximate PTRACE_SYSEMU when it's not there. But we would have heard
before now if UML cared about this particular behavior on x86_64.

> IOW: is it a 2.6.25 thing and if so, why?

No hurry. It's been broken forever (regression vs native 32-bit).
(OTOH, the fixes are quite safe.)


Thanks,
Roland


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