selftests/powerpc: Test cp_abort during context switch

Michael Ellerman mpe at
Thu May 5 08:40:31 AEST 2016

On Mon, 2016-02-05 at 03:51:38 UTC, Chris Smart wrote:
> Test that performing a copy paste sequence in userspace on P9 does not
> result in a leak of the copy into the paste of another process.
> This is based on Anton Blanchard's context_switch benchmarking code. It
> sets up two processes tied to the same CPU, one which copies and one
> which pastes.
> The paste should never succeed and the test fails if it does.
> This is a test for commit, "8a64904 powerpc: Add support for userspace
> P9 copy paste."
> Patch created with much assistance from Michael Neuling
> <mikey at>
> Signed-off-by: Chris Smart <chris at>
> Reviewed-by: Cyril Bur <cyrilbur at>

Applied to powerpc next, thanks.


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