Back in the day, rcutorture was about the only thing that tested off-stack CPU masks, but now any arm64 system with more than 256 CPUs tests it full time. In fact, it is necessary to hack the kernel to prevent such a system from testing off-stack CPU masks. This means that there is no longer much point in rcutorture going out of its way to test this. And given the differences in how CPUMASK_OFFSTACK is enabled in x86 and arm64, rcutorture would need to go out of its way.
This commit therefore removes CONFIG_CPUMASK_OFFSTACK=y (and the CONFIG_MAXSMP=y required to enable it on x86) from TREE01. Signed-off-by: Paul E. McKenney <paul...@kernel.org> --- tools/testing/selftests/rcutorture/configs/rcu/TREE01 | 2 -- 1 file changed, 2 deletions(-) diff --git a/tools/testing/selftests/rcutorture/configs/rcu/TREE01 b/tools/testing/selftests/rcutorture/configs/rcu/TREE01 index 8ae41d5f81a3e..54b1600c7eb5f 100644 --- a/tools/testing/selftests/rcutorture/configs/rcu/TREE01 +++ b/tools/testing/selftests/rcutorture/configs/rcu/TREE01 @@ -8,8 +8,6 @@ CONFIG_NO_HZ_IDLE=y CONFIG_NO_HZ_FULL=n CONFIG_RCU_TRACE=y CONFIG_HOTPLUG_CPU=y -CONFIG_MAXSMP=y -CONFIG_CPUMASK_OFFSTACK=y CONFIG_RCU_NOCB_CPU=y CONFIG_DEBUG_LOCK_ALLOC=n CONFIG_RCU_BOOST=n -- 2.40.1
