Messages in this thread | | | From | Florian Weimer <> | Subject | Re: [PATCH v9 00/51] powerpc, mm: Memory Protection Keys | Date | Mon, 06 Nov 2017 22:28:41 +0100 |
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* 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 parameter?
What about siglongjmp from a signal handler?
<https://sourceware.org/bugzilla/show_bug.cgi?id=22396>
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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