Hello! This series contains torture-test updates: 1. Make jitter.sh select from only online CPUs, courtesy of Joel Fernandes. 2. Add cpu0 to the set of CPUs to add jitter, courtesy of Joel Fernandes. 3. Add cond_resched() to forward-progress free-up loop. 4. Fix stutter_wait() return value and freelist checks. 5. Allow inter-stutter interval to be specified. 6. Make kvm-find-errors.sh and kvm-recheck.sh provide exit status. 7. Provide rudimentary Makefile. 8. Exempt tasks RCU from timely draining of grace periods. 9. Exempt TREE01 from forward-progress testing. 10. Give the scheduler a chance on PREEMPT && NO_HZ_FULL kernels. 11. Halt forward-progress checks at end of run. 12. Add trivial RCU implementation. 13. Tweak kvm options, courtesy of Sebastian Andrzej Siewior. 14. Capture qemu output. 15. Add function graph-tracing cheat sheet. 16. Run kernel build in source directory. 17. Make --cpus override idleness calculations. 18. Add --trust-make to suppress "make clean". 19. Dump trace buffer for callback pipe drain failures. 20. Suppress propagating trace_printk() warning. 21. Upper case solves the case of the vanishing NULL pointer. Thanx, Paul ------------------------------------------------------------------------ include/linux/torture.h | 2 kernel/locking/locktorture.c | 2 kernel/rcu/rcu.h | 5 kernel/rcu/rcutorture.c | 104 ++++++++++-- kernel/rcu/update.c | 13 + kernel/torture.c | 23 +- tools/testing/selftests/rcutorture/Makefile | 3 tools/testing/selftests/rcutorture/bin/configinit.sh | 41 +--- tools/testing/selftests/rcutorture/bin/cpus2use.sh | 5 tools/testing/selftests/rcutorture/bin/functions.sh | 13 + tools/testing/selftests/rcutorture/bin/jitter.sh | 13 + tools/testing/selftests/rcutorture/bin/kvm-build.sh | 9 - tools/testing/selftests/rcutorture/bin/kvm-find-errors.sh | 3 tools/testing/selftests/rcutorture/bin/kvm-recheck.sh | 13 + tools/testing/selftests/rcutorture/bin/kvm-test-1-run.sh | 23 +- tools/testing/selftests/rcutorture/bin/kvm.sh | 14 + tools/testing/selftests/rcutorture/bin/parse-build.sh | 2 tools/testing/selftests/rcutorture/bin/parse-console.sh | 1 tools/testing/selftests/rcutorture/configs/rcu/CFcommon | 3 tools/testing/selftests/rcutorture/configs/rcu/TREE01.boot | 1 tools/testing/selftests/rcutorture/configs/rcu/TRIVIAL | 14 + tools/testing/selftests/rcutorture/configs/rcu/TRIVIAL.boot | 3 22 files changed, 231 insertions(+), 79 deletions(-)