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Re: check memory mapping

Emmanuel Dreyfus <> wrote:

> > You could access it via system call like read(2) from /dev/zero to test
> > if it is writable, or write(2) to /dev/null for readability.
> I retain the read test. The write test is troublesome because it modify memory
> if it is accessible.

The read test works very well, but what about a write test that does not
really change memory?

Emmanuel Dreyfus

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