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