commit | c83ef8ae2f5d23d0fa342620a7793950fdef00c6 | [log] [tgz] |
---|---|---|
author | Martin Karac <martin.karac@oracle.com> | Mon Jun 05 17:00:46 2017 +0000 |
committer | Jan Stancek <jstancek@redhat.com> | Wed Jun 07 12:49:26 2017 +0200 |
tree | dc9ac92e191b3b62de721f89133b968b7f896335 | |
parent | f2c012c6d425aa09120808046abd18b07581741b [diff] |
controllers/cpuset: do not test undefined behavior The test_flags() function's first test for each file is an attempt to write a space character into that file (NULL translates to " "). The test expects that this attempt will be successful and that the flag will get set to 0. This behavior was changed in Linux kernel between versions 3.13.74 and 3.14. with the commit a742c59de66ea080afa3edaf3428b3cdd5aa87cd "cgroup: unify cgroup_write_X64() and cgroup_write_string()". With the new behavior, attempting to write a space character into a flag file returns EINVAL; I find this behavior more consistent. Flag files are an interface which is known to expect numeric values. We already have a test in test_flags() which covers invalid input. We should not attempt to write a space into a flag file because the resulting behavior is not strictly defined anywhere. Therefore, it would be best to drop the first test. Signed-off-by: Martin Karac <martin.karac@oracle.com> Acked-by: Jan Stancek <jstancek@redhat.com>
Linux Test Project is a joint project started by SGI, OSDL and Bull developed and maintained by IBM, Cisco, Fujitsu, SUSE, Red Hat, Oracle and others. The project goal is to deliver tests to the open source community that validate the reliability, robustness, and stability of Linux.
The LTP testsuite contains a collection of tools for testing the Linux kernel and related features. Our goal is to improve the Linux kernel and system libraries by bringing test automation to the testing effort. Interested open source contributors are encouraged to join.
Project pages are located at: http://linux-test-project.github.io/
The latest image is always available at: https://github.com/linux-test-project/ltp/releases
The discussion about the project happens at ltp mailing list: http://lists.linux.it/listinfo/ltp
The git repository is located at GitHub at: https://github.com/linux-test-project/ltp
Be careful with these tests!
Don't run them on production systems. Growfiles, doio, and iogen in particular stress the I/O capabilities of systems and while they should not cause problems on properly functioning systems, they are intended to find (or cause) problems.
If you have git, autoconf, automake, m4, the linux headers and the common developer packages installed, the chances are the following will work.
$ git clone https://github.com/the-linux-test-project/ltp.git $ cd ltp $ make autotools $ ./configure $ make $ make install
This will install LTP to /opt/ltp
.
doc/mini-howto-building-ltp-from-git.txt
.INSTALL
and ./configure --help
.Some tests will be disabled if the configure script can not find their build dependencies.
TCONF
due to a missing component, check the ./configure
output.INSTALL
.To run all the test suites
$ cd /opt/ltp $ ./runltp
Note that many test cases have to be executed as root.
To run a particular test suite
$ ./runltp -f syscalls
To run all tests with madvise
in the name
$ ./runltp -f syscalls -s madvise
Also see
$ ./runltp --help
Test suites (e.g. syscalls) are defined in the runtest directory. Each file contains a list of test cases in a simple format, see doc/ltp-run-files.txt.
Each test case has its own executable or script, these can be executed directly
$ testcases/bin/abort01
Some have arguments
$ testcases/bin/fork13 -i 37
The vast majority of test cases accept the -h (help) switch
$ testcases/bin/ioctl01 -h
Many require certain environment variables to be set
$ LTPROOT=/opt/ltp PATH="$PATH:$LTPROOT/testcases/bin" testcases/bin/wc01.sh
Most commonly, the path variable needs to be set and also LTPROOT
, but there are a number of other variables, runltp
usually sets these for you.
Note that all shell scripts need the PATH
to be set. However this is not limited to shell scripts, many C based tests need environment variables as well.
Before you start you should read following documents:
doc/test-writing-guidelines.txt
doc/build-system-guide.txt
these two should contain all information needed for modifying or creating LTP testcases. If something is not covered there don't hesitate to ask on the LTP mailing list.
Also note that these documents are available online at:
https://github.com/linux-test-project/ltp/wiki/Test-Writing-Guidelines