two virtual address pointing to same physical address

[Valdis.Kletnieks at vt.edu]

On Mon, 19 May 2014 11:47:23 -0000, Chan Kim said:

> Is this situation normal? (in the kernel, two different virtual addresses
> pointing to the same physical address.)

Think for a bit how shared libraries are implemented. Then think about how
mmap() of a shared region of a file at different virtual addresses in different
processes works.  Then you'll be able to answer your own question...

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