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SubjectRe: [PATCH v9 00/51] powerpc, mm: Memory Protection Keys
* Ram Pai:

> Testing:
> -------
> This patch series has passed all the protection key
> tests available in the selftest directory.The
> tests are updated to work on both x86 and powerpc.
> The selftests have passed on x86 and powerpc hardware.

How do you deal with the key reuse problem? Is it the same as x86-64,
where it's quite easy to accidentally grant existing threads access to
a just-allocated key, either due to key reuse or a changed init_pkru

What about siglongjmp from a signal handler?


I wonder if it's possible to fix some of these things before the exact
semantics of these interfaces are set in stone.

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