Re: [PATCH] selftests/powerpc: Add test of mitigation patching

On Fri, 7 May 2021 16:42:25 +1000, Michael Ellerman wrote:

We recently discovered some of our mitigation patching was not safe
against other CPUs running concurrently.

Add a test which enable/disables all mitigations in a tight loop while
also running some stress load. On an unpatched system this almost always
leads to an oops and panic/reboot, but we also check if the kernel
becomes tainted in case we have a non-fatal oops.

Applied to powerpc/next.

[1/1] selftests/powerpc: Add test of mitigation patching
      https://git.kernel.org/powerpc/c/34f7f79827ec4db30cff9001dfba19f496473e8d

cheers