02 Nov, 2017
1 commit
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Many source files in the tree are missing licensing information, which
makes it harder for compliance tools to determine the correct license.By default all files without license information are under the default
license of the kernel, which is GPL version 2.Update the files which contain no license information with the 'GPL-2.0'
SPDX license identifier. The SPDX identifier is a legally binding
shorthand, which can be used instead of the full boiler plate text.This patch is based on work done by Thomas Gleixner and Kate Stewart and
Philippe Ombredanne.How this work was done:
Patches were generated and checked against linux-4.14-rc6 for a subset of
the use cases:
- file had no licensing information it it.
- file was a */uapi/* one with no licensing information in it,
- file was a */uapi/* one with existing licensing information,Further patches will be generated in subsequent months to fix up cases
where non-standard license headers were used, and references to license
had to be inferred by heuristics based on keywords.The analysis to determine which SPDX License Identifier to be applied to
a file was done in a spreadsheet of side by side results from of the
output of two independent scanners (ScanCode & Windriver) producing SPDX
tag:value files created by Philippe Ombredanne. Philippe prepared the
base worksheet, and did an initial spot review of a few 1000 files.The 4.13 kernel was the starting point of the analysis with 60,537 files
assessed. Kate Stewart did a file by file comparison of the scanner
results in the spreadsheet to determine which SPDX license identifier(s)
to be applied to the file. She confirmed any determination that was not
immediately clear with lawyers working with the Linux Foundation.Criteria used to select files for SPDX license identifier tagging was:
- Files considered eligible had to be source code files.
- Make and config files were included as candidates if they contained >5
lines of source
- File already had some variant of a license header in it (even if
Reviewed-by: Philippe Ombredanne
Reviewed-by: Thomas Gleixner
Signed-off-by: Greg Kroah-Hartman
09 Mar, 2017
1 commit
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Pull ktest fixes from Steven Rostedt:
"Greg Kroah-Hartman reported to me that the ktest of v4.11-rc1 locked
up in an infinite loop while doing the make mrproper.Looking into the cause I noticed that a recent update to the function
run_command (used for running all shell commands, including "make
mrproper") changed the internal loop to use the function
wait_for_input.The wait_for_input function uses select to look at two file
descriptors. One is the file descriptor of the command it is running,
the other is STDIN. The STDIN check was not checking the return status
of the sysread call, and was also just writing a lot of data into
syswrite without regard to the size of the data read.Changing the code to check the return status of sysread, and also to
still process the passed in descriptor data without looping back to
the select fixed Greg's problem.While looking at this code I also realized that the loop did not honor
the timeout if STDIN always had input (or for some reason return
error). this could prevent wait_for_input to timeout on the file
descriptor it is suppose to be waiting for. That is fixed too"* tag 'ktest-v4.11-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/linux-ktest:
ktest: Make sure wait_for_input does honor the timeout
ktest: Fix while loop in wait_for_input
08 Mar, 2017
2 commits
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The function wait_for_input takes in a timeout, and even has a default
timeout. But if for some reason the STDIN descriptor keeps sending in data,
the function will never time out. The timout is to wait for the data from
the passed in file descriptor, not for STDIN. Adding a test in the case
where there's no data from the passed in file descriptor that checks to see
if the timeout passed, will ensure that it will timeout properly even if
there's input in STDIN.Signed-off-by: Steven Rostedt (VMware)
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The run_command function was changed to use the wait_for_input function to
allow having a timeout if the command to run takes too much time. There was
a bug in the wait_for_input where it could end up going into an infinite
loop. There's two issues here. One is that the return value of the sysread
wasn't used for the write (to write a proper size), and that it should
continue processing the passed in file descriptor too even if there was
input. There was no check for error, if for some reason STDIN returned an
error, the function would go into an infinite loop and never exit.Reported-by: Greg Kroah-Hartman
Tested-by: Greg Kroah-Hartman
Fixes: 6e98d1b4415f ("ktest: Add timeout to ssh command")
Signed-off-by: Steven Rostedt (VMware)
28 Feb, 2017
1 commit
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Pull ktest updates from Steven Rostedt:
"These are various fixes that I have made and never got around to
pushing. I've been asked to get the upstream repo back up-to-date"* tag 'ktest-v4.11' of git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/linux-ktest:
ktest: Add variable run_command_status to save status of commands executed
ktest.pl: Powercycle the box on reboot if no connection can be made
ktest: Add timeout to ssh command
ktest: Fix child exit code processing
ktest: Have POST_TEST run after the test has totally completed
08 Feb, 2017
5 commits
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Create a variable called run_command_status that saves the status of the
executed commands and can be used by other functions later to test for
status.Signed-off-by: Steven Rostedt (VMware)
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When performing a reboot of the test box, try to ssh to it. If it can't
connect for 5 seconds, then powercycle the box. This is useful because the
reboot is done via ssh, and if you can't ssh to the box because it is hung,
the reboot fails to reboot.Signed-off-by: Steven Rostedt (VMware)
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Add a timeout to performing an ssh command. This will let testing if a
machine is alive or not, or if something else may be amiss. A timeout can be
passed to ssh, where ssh will fail if it does not complete within the given
timeout.Signed-off-by: Steven Rostedt (VMware)
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The child_exit errno needs to be shifted by 8 bits to compare against the
return values for the bisect variables.Fixes: c5dacb88f0a64 ("ktest: Allow overriding bisect test results")
Cc: stable@vger.kernel.org
Signed-off-by: Steven Rostedt (VMware) -
The POST_TEST config is to be executed after a test has fully compeleted,
whether the test passed or failed. It currently is executed at the moment
that the test has been decided if it failed or not. As the test does other
clean ups, it isn't truly finished. Move the POST_TEST execution to after
all the test cleanups have been done.Signed-off-by: Steven Rostedt (VMware)
15 Dec, 2016
1 commit
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Ajdust spelling to more common "mandatory". Variant "mandidory" is
certainly wrong.Link: http://lkml.kernel.org/r/20161011073003.GA19476@amd
Signed-off-by: Pavel Machek
Acked-by: Steven Rostedt
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds
04 Feb, 2015
1 commit
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Seems that some of the new console logic causes doprint to possibly
get evaluated. When printing a commit message that contains parenthesis,
it fails with a shell parsing error.This gets fixed when we add quotes around the $item variable, and prevent
it from being evaluated by any shell commands.Signed-off-by: Steven Rostedt
02 Feb, 2015
4 commits
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If dodie() is called with the console open, restore the terminal's
original settings before dying.Link: http://lkml.kernel.org/r/20150130025453.GB20952@treble.redhat.com
Signed-off-by: Josh Poimboeuf
Signed-off-by: Steven Rostedt -
Since both success and failure may shortcut and exit ktest, it is better
to print the status times there too. Once times are printed, the values
for the times are reset, so they will not print more than once.Signed-off-by: Steven Rostedt
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Allow the user to send input to the console by putting the terminal in
cbreak mode (to allow reading stdin one character at a time) and copying
all stdin data to the console's pty.Link: http://lkml.kernel.org/r/bb1bbe7d202c95a3ce7894cfffdd8c725875978e.1422473610.git.jpoimboe@redhat.com
Signed-off-by: Josh Poimboeuf
Signed-off-by: Steven Rostedt -
Create a pseudoterminal (pty pair) to give the console a dedicated tty
so it doesn't mess with ktest's terminal settings.Link: http://lkml.kernel.org/r/37b0127f9efad09ff4fc994334db998141e4f6ca.1422473610.git.jpoimboe@redhat.com
Signed-off-by: Josh Poimboeuf
Signed-off-by: Steven Rostedt
29 Jan, 2015
2 commits
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The function start_monitor_and_boot is a misnomer. It use to, but
now it starts the monitor and installs. It does not boot. Rename it
before I get confused by it again.Signed-off-by: Steven Rostedt
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Seeing the times for how long a build, install, reboot and the
test takes is helpful for analyzing the test process. Seeing
how different changes affect the timings.Show the build, install, boot and test times when at the end of
the test, or between each interval for tests that do those
mulitple times (like bisect and patchcheck).Signed-off-by: Steven Rostedt
28 Jan, 2015
2 commits
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When ktest runs the console program as a child process, the parent and
child share the same tty for stdin and stderr. This is problematic when
using a libvirt target. The "virsh console" program makes a lot of
changes to the tty settings, making ktest's output hard to read
(carriage returns don't work). After ktest exits, the terminal is
unusable (CRs broken, stdin isn't echoed).I think the best way to fix this issue would be to create a
pseudoterminal (pty pair) so the child process would have a dedicated
tty, and then use pipes to connect the two ttys. I'm not sure if that's
overkill, but it's far beyond my current Perl abilities.This patch is a much easier way to (partially) fix this issue. It saves
the tty settings before opening the console and restores them after
closing it. There are still a few places where ktest prints mangled
output while the console is open, but the output is much more legible
overall, and the terminal works just fine after ktest exits.Link: http://lkml.kernel.org/r/1bb89abc0025cf1d6da657c7ba58bbeb4381a515.1422382008.git.jpoimboe@redhat.com
Signed-off-by: Josh Poimboeuf
Signed-off-by: Steven Rostedt -
I find that I usually like to see how long a make or other command takes,
and adding a start and end time and reporting how long each command runs
(in seconds) is helpful.Signed-off-by: Steven Rostedt
24 Nov, 2014
1 commit
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Commit 52d21580b362 "ktest: Use make -s kernelrelease" fixed commit
7ff525712acf "kbuild: fake the "Entering directory ..." message more simply"
as that commit added output after the make kernelrelease. But there's still
some build scripts that are used by ktest that has output before the make
is executed, and requires that only the last line is printed.Cc: Michal Marek
Signed-off-by: Steven Rostedt
22 Nov, 2014
4 commits
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Instead of just showing the test type of test in the start of the
test, like this:RUNNING TEST 1 of 26 with option build defconfig
Add the name (if it is defined) as well, like this:
RUNNING TEST 1 of 26 (arm64 aarch64-linux) with option build defconfig
Signed-off-by: Steven Rostedt
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Tests can set options that override the default ones. But if a test
tries to undefine a default option, it is simply ignored and the
default option stays as is.For example, if you want to have a test that defines no MIN_CONFIG
then the test should be able to do that with:TEST_START
MIN_CONFIG =Which should make MIN_CONFIG not defined for that test. But the way
the code currently works, undefined options in tests are dropped.
This is because the NULL options are evaluated during the reading of
the config file and since one can disable default options in the default
section with this method, it is evaluated there (the option turns to a
undef). But undef options in the test section mean to use the default
option.To fix this, keep the empty string in the option during the reading
of the config file, and then evaluate it when running the test. This
will allow tests to null out default options.Signed-off-by: Steven Rostedt
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Commit 6071c22e1755 "ktest: Rewrite the config-bisect to actually work"
fixed the config-bisect to work nicely but in doing so it broke
make_min_config by changing the way assign_configs works.The assign_configs function now adds the config to the hash even if
it is disabled, but changes the hash value to be that of the
line "# CONFIG_FOO is not set". Unfortunately, the make_min_config
test only checks to see if the config is removed. It now needs to
check if the config is in the hash and not set to be disabled.Cc: stable@vger.kernel.org # 3.17+
Signed-off-by: Steven Rostedt -
The previous tail -1 broke with commit 7ff525712acf ("kbuild: fake the
"Entering directory ..." message more simply")Link: http://lkml.kernel.org/r/20141022194408.GA20989@pobox.suse.cz
Reported-by: Steven Rostedt
Signed-off-by: Michal Marek
Signed-off-by: Steven Rostedt
08 Oct, 2014
2 commits
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If git bisect reply is being used in the bisect tests, don't bother
doing the git bisect good or git bisect bad calls. The git bisect
reply will override them anyway, and that's called immediately
after the other two. Going the git bisect (good|bad) is just a
waste of time.Signed-off-by: Steven Rostedt
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The reboot function when rebooting back to a good kernel has a check
to make sure that a new kernel was indeed booted. But that check
uses a timeout value, which when calling the monitor will still
return success if the timeout is hit (no bug was found). It should
return an error to let the reboot code know that a new kernel was
not reached. Only the reboot code checks the return value of the
monitor.Signed-off-by: Steven Rostedt
20 Sep, 2014
2 commits
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When doing a manual bisect, a build can fail or a test can be inconclusive.
In these cases it would be helpful to be able to skip the test entirely.Link: http://lkml.kernel.org/r/1409164021-2136-1-git-send-email-chris.j.arges@canonical.com
Reviewed-by: Satoru Takeuchi
Signed-off-by: Chris J Arges
Signed-off-by: Steven Rostedt -
Add a way to run a patchcheck test on the commits that are in one branch
but not in another. This uses git cherry to find a list of commits to
test each one with.Signed-off-by: Steven Rostedt
24 Apr, 2014
7 commits
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With the more robust config_bisect, the documentation is out of
date and needs to be updated.The new rewrite allows for finding missing configs and such, and
is much more robust to use.Signed-off-by: Steven Rostedt
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After the rewrite of the config bisect, the bisect manual was
removed. Add it back.Signed-off-by: Steven Rostedt
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After the rewrite of the config bisect, there were several unused
functions that can be removed.One of the unused functions printed out the failed config nicer than
what the rewrite did, so I kept that and used it to output the
bad config.Signed-off-by: Steven Rostedt
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The new rewrite left out the CONFIG_BISECT_CHECK, which allows the
user to test that their "bad" config still is bad and their "good"
config still is good. This is especially important as the configs
are passed through a "make oldconfig" to update them with the lastest
kernel. Things could change that causes a bad config to work, or a
good config to break. The check is done after the configs have run
through the oldconfig processing.Signed-off-by: Steven Rostedt
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I never liked the way config-bisect worked. I would assume the bad config
had some config that broke the system. But it would not work if the bad
config just happened to be missing something that the good config had.I rewrote the config-bisect to do this properly. It does a diff of the two
configs, and sets half of the configs that are in one and not the other.
The way it works is that when it "sets", it really just makes one copy
what the other has. That is, a "set" can be setting a:# CONFIG_FOO is not set
Basically, it looks at the differences between the two files and makes
them similar until it comes down to one config that makes it work or
not work depending on if it is set or not.Note, if more than one config change makes the bad config not work, it
will only find one of them. But this is true with all bisect logic.Signed-off-by: Steven Rostedt
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Some cleanup for improving readability as follows.
- Initialize $ktest_config at its definition.
- Put parentheses around the `config-file' argument in the usage message
because it's a optional one.
- Rename get_ktest_config{,s} to more descriptive get_mandatory_config{,s}.Link: http://lkml.kernel.org/r/87fvmr30kb.wl%satoru.takeuchi@gmail.com
Signed-off-by: Satoru Takeuchi
Signed-off-by: Steven Rostedt -
If we'd like to set the redirect target file of run_command(),
we should define $redirect before calling this function and should undef it
after calling this function. Since it's user-unfriendly, add 2nd parameter of
run_command() for this purpose.Link: http://lkml.kernel.org/r/87vbvwokq8.wl%satoru.takeuchi@gmail.com
Signed-off-by: Satoru Takeuchi
Signed-off-by: Steven Rostedt
27 Feb, 2014
1 commit
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As mentioned at commit 5a5d8e48449, we can't terminate 'virsh console'
with the default signal(INT). So it's better to set CLOSE_CONSOLE_SIGNAL
in the kvm.conf.Link: http://lkml.kernel.org/r/8738jatylb.wl%satoru.takeuchi@gmail.com
Signed-off-by: Satoru Takeuchi
[ Typo fixed by ]
Signed-off-by: MUNEDA Takahiro
Signed-off-by: Steven Rostedt
21 Jan, 2014
1 commit
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Pull ktest updates from Steven Rostedt:
"Here's some basic updates to ktest.pl. They include:- add config to modify the signal to terminate console
- update to documentation (missing some config options)
- add KERNEL_VERSION variable to use for other configs
- add '=~' to let configs eval other configs
- add BISECT_TRIES to run multiple tests per git bisect good"* tag 'ktest-v3.14' of git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/linux-ktest:
ktest: Add BISECT_TRIES to bisect test
ktest: Add eval '=~' command to modify variables in config file
ktest: Add special variable ${KERNEL_VERSION}
ktest: Add documentation of CLOSE_CONSOLE_SIGNAL
ktest: Make the signal to terminate the console configurable
19 Jan, 2014
1 commit
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For those cases that it takes several tries to hit a bug, it would be
useful for ktest.pl to try a test multiple times before it considers
the test as a pass. To accomplish this, BISECT_TRIES ktest config
option has been added. It is default to one, as most of the time a
bisect only needs to try a test once. But the user can now up this
to make ktest run a given test multiple times. The first failure
that is detected will set a bisect bad. It only repeats on success.Note, as with all race bugs, there's no guarantee that if it succeeds,
it is really a good bisect. But it helps in case the bug is somewhat
reliable.You can set BISECT_TRIES to zero, and all tests will be considered
good, unless you also set BISECT_MANUAL.Suggested-by: "Paul E. McKenney"
Signed-off-by: Steven Rostedt
12 Dec, 2013
1 commit
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With the added variable ${KERNEL_VERSION}, it is useful to be
able to use parts of it for other variables.For example, if you want to create a warnings file for each major
kernel version to test sub versions against you can create
your warnings file with like this:WARNINGS_FILE = warnings-file-${KERNEL_VERSION}
But this may add 3.8.12 or something, and we want all 3.8.* to
use the same file, and 3.10.* to use another file, and so on.
With the eval command we can, by adding:WARNINGS_FILE =~ s/(-file-\d+\.\d+).*/$1/
Which will chop off the extra characters after the 3.8.
Signed-off-by: Steven Rostedt