linux-toradex.git/tools/testing/selftests/memory-hotplug, branch v4.11-rc3

selftests: create test-specific kconfig fragments

2016-02-25T16:47:52+00:00

Create the config file in each directory of testcase which need
more kernel configuration than the default defconfig. User could
use these configs with merge_config.sh script:

Enable config for specific testcase:
(export ARCH=xxx #for cross compiling)
./scripts/kconfig/merge_config.sh .config \
		tools/testing/selftests/xxx/config

Enable configs for all testcases:
(export ARCH=xxx #for cross compiling)
./scripts/kconfig/merge_config.sh .config \
		tools/testing/selftests/*/config

Signed-off-by: Bamvor Jian Zhang 
Reviewed-by: Shuah Khan 
Signed-off-by: Shuah Khan

selftests: Change memory on-off-test.sh name to be unique

2015-04-01T16:33:02+00:00

cpu and memory hotplug scripts use the same name. Change
memory on-off-test.sh to mem-on-off-test.sh.

Signed-off-by: Shuah Khan 
Acked-by: Greg Kroah-Hartman

selftests: Add install target

2015-03-13T21:21:56+00:00

This adds make install support to selftests. The basic usage is:

$ cd tools/testing/selftests
$ make install

That installs into tools/testing/selftests/install, which can then be
copied where ever necessary.

The install destination is also configurable using eg:

$ INSTALL_PATH=/mnt/selftests make install

The implementation uses two targets in the child makefiles. The first
"install" is expected to install all files into $(INSTALL_PATH).

The second, "emit_tests", is expected to emit the test instructions (ie.
bash script) on stdout. Separating this from install means the child
makefiles need no knowledge of the location of the test script.

Signed-off-by: Michael Ellerman 
Signed-off-by: Shuah Khan

selftests: Introduce minimal shared logic for running tests

2015-03-13T21:13:40+00:00

This adds a Make include file which most selftests can then include to
get the run_tests logic.

On its own this has the advantage of some reduction in repetition, and
also means the pass/fail message is defined in fewer places.

However the key advantage is it will allow us to implement install very
simply in a subsequent patch.

The default implementation just executes each program in $(TEST_PROGS).

We use a variable to hold the default implementation of $(RUN_TESTS)
because that gives us a clean way to override it if necessary, ie. using
override. The mount, memory-hotplug and mqueue tests use that to provide
a different implementation.

Tests are not run via /bin/bash, so if they are scripts they must be
executable, we add a+x to several.

Signed-off-by: Michael Ellerman 
Signed-off-by: Shuah Khan

tools: selftests - create a separate hotplug target for full range test

2014-07-12T01:13:06+00:00

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.

Signed-off-by: Shuah Khan 
Cc: Kees Cook 
Cc: Michael Ellerman 
Cc: Benjamin Herrenschmidt 
Cc: Frederic Weisbecker 
Signed-off-by: Andrew Morton 
Signed-off-by: Greg Kroah-Hartman

tools: memory-hotplug fix unexpected operator error

2014-07-12T01:11:18+00:00

on-off-test is a bash script and invoked from /bin/sh
This results in the following error:

./on-off-test.sh: 9: [: !=: unexpected operator

Changed Makefile to use bash instead.

Signed-off-by: Shuah Khan 
Signed-off-by: Greg Kroah-Hartman

tools/testing/selftests: don't assume the x bit is set on scripts

2013-07-03T23:08:07+00:00

The x bit can easily get lost (patch(1) loses it, for example).

Reported-by: Ramkumar Ramachandra 
Cc: Dave Young 
Signed-off-by: Andrew Morton 
Signed-off-by: Linus Torvalds

mem-hotplug selftests: print failure status instead of cause make error

2012-12-18T01:15:27+00:00

Original behavior:
  bash-4.1$ make -C memory-hotplug run_tests
  make: Entering directory `/home/dave/git/linux-2.6/tools/testing/selftests/memory-hotplug'
  ./on-off-test.sh
  make: execvp: ./on-off-test.sh: Permission denied
  make: *** [run_tests] Error 127
  make: Leaving directory `/home/dave/git/linux-2.6/tools/testing/selftests/memory-hotplug'

After applying the patch:
  bash-4.1$ make -C memory-hotplug run_tests
  make: Entering directory `/home/dave/git/linux-2.6/tools/testing/selftests/memory-hotplug'
  /bin/sh: ./on-off-test.sh: Permission denied
  memory-hotplug selftests: [FAIL]
  make: Leaving directory `/home/dave/git/linux-2.6/tools/testing/selftests/memory-hotplug'

Signed-off-by: Dave Young 
Reviewed-by: Pekka Enberg 
Signed-off-by: Andrew Morton 
Signed-off-by: Linus Torvalds

fault-injection: add selftests for cpu and memory hotplug

2012-07-31T00:25:22+00:00

This adds two selftests

* tools/testing/selftests/cpu-hotplug/on-off-test.sh is testing script
for CPU hotplug

1. Online all hot-pluggable CPUs
2. Offline all hot-pluggable CPUs
3. Online all hot-pluggable CPUs again
4. Exit if cpu-notifier-error-inject.ko is not available
5. Offline all hot-pluggable CPUs in preparation for testing
6. Test CPU hot-add error handling by injecting notifier errors
7. Online all hot-pluggable CPUs in preparation for testing
8. Test CPU hot-remove error handling by injecting notifier errors

* tools/testing/selftests/memory-hotplug/on-off-test.sh is doing the
similar thing for memory hotplug.

1. Online all hot-pluggable memory
2. Offline 10% of hot-pluggable memory
3. Online all hot-pluggable memory again
4. Exit if memory-notifier-error-inject.ko is not available
5. Offline 10% of hot-pluggable memory in preparation for testing
6. Test memory hot-add error handling by injecting notifier errors
7. Online all hot-pluggable memory in preparation for testing
8. Test memory hot-remove error handling by injecting notifier errors

Signed-off-by: Akinobu Mita 
Suggested-by: Andrew Morton 
Cc: Pavel Machek 
Cc: "Rafael J. Wysocki" 
Cc: Greg KH 
Cc: Benjamin Herrenschmidt 
Cc: Paul Mackerras 
Cc: Michael Ellerman 
Cc: Dave Jones 
Signed-off-by: Andrew Morton 
Signed-off-by: Linus Torvalds