On Wed, 2 Jul 2014 09:51:38 -0600 Shuah Khan <[email protected]> wrote:
> On some systems, hot-plug tests could hang forever waiting for cpu and > memory to be ready to be offlined. A special hot-plug target is created > to run full range of hot-plug tests. In default mode, hot-plug tests run > in safe mode with a limited scope. In limited mode, cpu-hotplug test is > run on a single cpu as opposed to all hotplug capable cpus, and memory > hotplug test is run on 2% of hotplug capable memory instead of 10%. In > addition to the above change, cpu-hotplug is chnged to change processor > affinity to cpu 0 so it doesn't impact itself while the test runs. > > ... > > --- a/tools/testing/selftests/README.txt > +++ b/tools/testing/selftests/README.txt > @@ -4,8 +4,15 @@ The kernel contains a set of "self tests" under the > tools/testing/selftests/ > directory. These are intended to be small unit tests to exercise individual > code paths in the kernel. > > -Running the selftests > -===================== > +On some systems, hot-plug tests could hang forever waiting for cpu and > +memory to be ready to be offlined. A special hot-plug target is created > +to run full range of hot-plug tests. In default mode, hot-plug tests run > +in safe mode with a limited scope. In limited mode, cpu-hotplug test is > +run on a single cpu as opposed to all hotplug capable cpus, and memory > +hotplug test is run on 2% of hotplug capable memory instead of 10%. > + > +Running the selftests (hotplug tests are run in limited mode) > +============================================================= > > To build the tests: > > @@ -18,14 +25,26 @@ To run the tests: > > - note that some tests will require root privileges. > > - > -To run only tests targetted for a single subsystem: > +To run only tests targeted for a single subsystem: (including > +hotplug targets in limited mode) > > $ make -C tools/testing/selftests TARGETS=cpu-hotplug run_tests > > See the top-level tools/testing/selftests/Makefile for the list of all > possible > targets. > > +Running the full range hotplug selftests > +======================================== > + > +To build the tests: > + > + $ make -C tools/testing/selftests hotplug Well. `make -C tools/testing/selftests' will build the hotplug tests, won't it? We may as well *compile* everything by default.. > > ... > -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to [email protected] More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
