Sometimes a test kernel will crash or hang on reboot (this is even more
apparent when testing a config without CGROUPS on a box running
systemd). When this happens, on the next iteration of installing a
kernel, ktest will fail when it tries to install.
Have ktest do a check to see if the target can be connected to via ssh
before it tries to install. If it can't connect, then reboot again.
This time the reboot will fail because it can't connect and will force a
power cycle.
Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
Commit fb16d891 "kconfig: replace 'oldnoconfig' with 'olddefconfig', and
keep the old name", changed ktest's default config update from
oldnoconfig to olddefconfig without adding oldnoconfig as a backup.
The make oldnoconfig works much better than its backup of:
yes '' | make oldconfig
But due to this change, and the fact that ktest is used to build lots of
older kernels (and for bisects), it forgoes the oldnoconfig completely.
Cc: Adam Lee <adam8157@gmail.com>
Cc: Michal Marek <mmarek@suse.cz>
Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
I installed Fedora 17 which no longer supports grub v1. I worked
with grub2 for a while, but there's so many issues with it and automated
rebooting, that I decided to switch to syslinux. Instead of using
the REBOOT_SCRIPT and add customized changes to get syslinux booted,
I thought it better to make ktest aware of syslinux and add options
to simplify the use of syslinux on a target test box.
Acked-by: H. Peter Anvin <hpa@zytor.com>
Cc: John 'Warthog9' Hawley <warthog9@kernel.org>
Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
Before rebooting the target, run the sync command, as it seems that
either Grub2 or systemd gets screwed up if you update to reboot a kernel
once and do a reboot without doing a sync.
Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
As only grub or 'script' is supported for rebooting to a new kernel,
and Fedora 17 has dropped support for grub, I decided to add grub2
support as well (I also plan on adding syslinux/extlinux support too).
The options GRUB_FILE and GRUB_REBOOT were added to allow the user
to specify where to find the grub.cfg and what tool to use to reboot
into the next kernel respectively.
Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
In order to decide if ktest should bother installing modules on the
target box, it checks if the config file has CONFIG_MODULES=y. But it
also checks if the '=y' part exists. It only will install modules if the
config exists and is set with '=y'. But as the regex that was used
tests:
/^CONFIG_MODULES(=y)?/
this will also match:
CONFIG_MODULES_USE_ELF_RELA
as the '=y' part was optional and it did not test the rest of the line.
When this happens, ktest will stop checking the rest of the configs but
it will also think that no modules are needed to be installed. What it
should do is only jump out of the loop if it actually found a
CONFIG_MODULES that is set to true.
Otherwise, ktest wont install the necessary modules needed for proper
booting of the test target.
Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
Pull kconfig changes from Michal Marek:
"kconfig in v3.7 is going to
- initialize ncurses only once in menuconfig
- be able to jump to a search result in menuconfig
- change the misnomer oldnoconfig to a more meaningful name
olddefconfig, keeping the old name as alias"
* 'kconfig' of git://git.kernel.org/pub/scm/linux/kernel/git/mmarek/kbuild:
kconfig: replace 'oldnoconfig' with 'olddefconfig', and keep the old name as an alias
menuconfig: Assign jump keys per-page instead of globally
menuconfig: Do not open code textbox scroll up/down
menuconfig: Add jump keys to search results
menuconfig: Extend dialog_textbox so that it can return to a scrolled position
menuconfig: Extend dialog_textbox so that it can exit on arbitrary keypresses
menuconfig: Remove superfluous conditionnal
kconfig: document oldnoconfig to what it really does in conf.c
kconfig/mconf.c: revision of curses initialization.
Fix parsing of ELSE IF in reading config file.
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Merge tag 'ktest-v3.7' of git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/linux-ktest
Pull ktest fix from Steven Rostedt:
"ktest has one fix needed for this merge window - fix parsing of ELSE
IF in reading config file"
* tag 'ktest-v3.7' of git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/linux-ktest:
ktest: Fix ELSE IF statements
Pull the trivial tree from Jiri Kosina:
"Tiny usual fixes all over the place"
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/trivial: (34 commits)
doc: fix old config name of kprobetrace
fs/fs-writeback.c: cleanup riteback_sb_inodes kerneldoc
btrfs: fix the commment for the action flags in delayed-ref.h
btrfs: fix trivial typo for the comment of BTRFS_FREE_INO_OBJECTID
vfs: fix kerneldoc for generic_fh_to_parent()
treewide: fix comment/printk/variable typos
ipr: fix small coding style issues
doc: fix broken utf8 encoding
nfs: comment fix
platform/x86: fix asus_laptop.wled_type module parameter
mfd: printk/comment fixes
doc: getdelays.c: remember to close() socket on error in create_nl_socket()
doc: aliasing-test: close fd on write error
mmc: fix comment typos
dma: fix comments
spi: fix comment/printk typos in spi
Coccinelle: fix typo in memdup_user.cocci
tmiofb: missing NULL pointer checks
tools: perf: Fix typo in tools/perf
tools/testing: fix comment / output typos
...
As 67d34a6a39 said, 'oldnoconfig' doesn't
set new symbols to 'n', but instead sets it to their default values.
So, this patch replaces 'oldnoconfig' with 'olddefconfig', stop making
people confused, and keep the old name 'oldnoconfig' as an alias,
because people already are dependent on its behavior with the
counter-intuitive name.
Signed-off-by: Adam Lee <adam8157@gmail.com>
Signed-off-by: Michal Marek <mmarek@suse.cz>
The ELSE IF statements do not work as expected if another ELSE statement
follows. This is because the $if_set is not set. If the ELSE IF
condition is true, the following ELSE should be ignored. But because the
$if_set is not set, the following ELSE will also be executed.
Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
Add '=~' and '!~' to the list of allowed conditionals for DEFAULT and
TEST_START section if statements.
ie.
TEST_START IF TEST =~ .*test$
Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
The option IGNORE_ERRORS is used to allow a test to succeed even if a
warning appears from the kernel. Sometimes kernels will produce warnings
that are not associated with a test, and the user wants to test
something else.
The IGNORE_ERRORS works for boot up, but was not preventing test runs to
succeed if the kernel produced a warning.
Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
The min configs are saved in a perl hash called force_configs, and this
hash is used to add configs to the .config file. But it was not being
reset between tests and a min config from a previous test would affect
the min config of the next test causing undesirable results.
Reset the force_config hash at the start of each test.
Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
Usually the target is booted into a dependable kernel when a test
starts. The test will install the test kernel and reboot the box. But
there may be a time that the kernel is running an unreliable kernel and
the reboot may crash.
Have ktest detect crashes on a reboot and force a power-cycle instead.
This can usually happen if a test kernel was installed to run manual
tests, but the user forgot to reboot to the known good kernel.
Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
If the console is constantly outputting content, this can cause ktest
to get stuck waiting on the monitor to settle down.
The option MAX_MONITOR_WAIT is the maximum time (in seconds) for ktest
to wait for the console to flush.
Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
With a name like 'oldnoconfig' one may think that the config generated
would disable all configs that were not defined (selecting "no" for all
options). But this is not the case. It selects the default. If a config
has a 'default y', then it is added if not specified.
This broke the config bisect, because options not specified by a config
will just use the default, where it expected to turn off. This caused an
option to be enabled that disabled an option that would break the build.
The end result was that we never found the bad config at the end of the
test.
Instead of using 'make oldnoconfig', ktest now builds the options it
expects enabled and disabled. When it turns off an option, it will no
longer remove it, but actually set it to:
# CONFIG_FOO is not set.
Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
The config-bisect can take a bad config and bisect it down to find out
what config actually breaks the config. But as all tests will apply a
minconfig (defined by a user) to apply before booting, it is possible
that the minconfig could actually make the bad config work (minconfigs
can disable configs). The end result is that the config bisect test will
not find a config that breaks. This can be rather frustrating to the
user.
The CONFIG_BISECT_CHECK option, when set to 1, will make sure that the
bad config (with the minconfig applied) still fails before trying to
bisect.
And yes, I did get burned by this.
Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
Add the PRE_INSTALL option that will allow a user to specify a shell
command to be executed before the install operation executes.
Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
In order to let the user add commands before and after ktest runs, the
PRE_KTEST and POST_KTEST options are defined. They hold shell commands
that will execute befor ktest runs its first test, as well as when it
completed its last test.
The PRE_TEST and POST_TEST will be run befor and after (respectively)
for a given test. They can either be global (done for all tests) or
defined by a single test.
Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
Add a README that explains what the different example configs in the
ktest example directory are about.
Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
I used the snowball.conf in a live demo that demonstrated how to use
ktest.pl with a snowball ARM board. I've been asked to included that
config in the ktest repository.
Here it is.
Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
Add the config that I use to test several archs. I downloaded several
cross compilers from:
http://kernel.org/pub/tools/crosstool/files/bin/x86_64/
and this config is an example to crosscompile several archs to make sure
that your changes do not break archs that you are not working on.
Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
I've been asked several times to provide more useful example configs for
ktest.pl, as the sample.conf is too complex (because it explains all
configs). This adds configs broken up by use case, and these configs are
based on actual configs that I use on a daily basis.
Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
If the file that OUTPUT_MIN_CONFIG exists then ktest.pl will prompt the
user and ask them if the OUTPUT_MIN_CONFIG should be used as the
starting point for make_min_config instead of MIN_CONFIG.
This is usually the case, and to allow the user to do so, which is
helpful if the user is creating different min configs based on tests,
and they know one is a superset of another test, they can set
USE_OUTPUT_MIN_CONFIG to one, which will prevent kest.pl from prompting
to use the OUTPUT_MIN_CONFIG and it will just use it.
If USE_OUTPUT_MIN_CONIFG is set to zero, then ktest.pl will continue to
use MIN_CONFIG instead.
The default is that USE_OUTPUT_MIN_CONFIG is undefined.
Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
Add a MIN_CONFIG_TYPE that can be set to 'test' or 'boot'. The default
is 'boot' which is what make_min_config has done previously: makes a
config file that is the minimum needed to boot the target.
But when MIN_CONFIG_TYPE is set to 'test', not only must the target
boot, but it must also successfully run the TEST. This allows the
creation of a config file that is the minimum to boot and also
perform ssh to the target, or anything else a developer wants.
Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
The PRE_BUILD and POST_BUILD options of ktest are added to allow the
user to add temporary patch to the system and remove it on builds. This
is sometimes use to take a change from another git branch and add it to
a series without the fix so that this series can be tested, when an
unrelated bug exists in the series.
The problem comes when a tagged commit is being used. For example, if
v3.2 is being tested, and we add a patch to it, the kernelrelease for
that commit will be 3.2.0+, but without the patch the version will be
3.2.0. This can cause problems when the kernelrelease is determined for
creating the /lib/modules directory. The kernel booting has the '+' but
the module directory will not, and the modules will be missing for that
boot, and may not allow the kernel to succeed.
The fix is to put the creation of the kernelrelease in the POST_BUILD
logic, before it applies the POST_BUILD operation. The POST_BUILD is
where the patch may be removed, removing the '+' from the kernelrelease.
The calculation of the kernelrelease will also stay in its current
location but will be ignored if it was already calculated previously.
Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
The change to let individual tests decide to reboot the machine on
success of the entire test also prevented errors from rebooting
when an error was detected.
The "no_reboot" variable was only cleared if the test had
reboot_on_success set. But the no_reboot variable also prevents the test
rebooting when an error was detected even when REBOOT_ON_ERROR was set.
Add a new "reboot_success" variable that is used to determine if the
test should reboot on success and not touch the no_reboot variable.
Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
When BISECT_REVERSE and BISECT_SKIP are used together with boot or test
testing, build failures are treated as boot or test failures and
'git bisect bad' is executed instead of 'git bisect skip'. This is because
the $ret value of -1 is treated as a build failure, but the $reverse_bisect
logic does not properly handle this.
Simple fix, only invert it if it is positive.
Link: http://lkml.kernel.org/r/1335235380-8509-1-git-send-email-Russ.Dill@ti.com
Signed-off-by: Russ Dill <Russ.Dill@ti.com>
Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
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Merge tag 'ktest-v3.4' of git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/linux-ktest
Pull ktest changes from Steven Rostedt.
* tag 'ktest-v3.4' of git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/linux-ktest:
ktest: Allow a test to override REBOOT_ON_SUCCESS
ktest: Fix SWITCH_TO_GOOD to also reboot the machine
ktest: Add SCP_TO_TARGET_INSTALL option
ktest: Add warning when bugs are ignored
ktest: Add INSTALL_MOD_STRIP=1 when installing modules
The option REBOOT_ON_SUCCESS is global, and will have the machine reboot
the the box if all tests are successful. But a test may not want the
machine to reboot, and perhaps have the kernel it loaded be used to
install the next kernel. Or the last test may set up a kernel that the
user may want to look at. In this case, the user could have the global
option REBOOT_ON_SUCCESS be true, but if a test is defined to run at the
end, that test can override the global option and keep the kernel it
installed for the user to log in with.
Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
When the option SWITCH_TO_GOOD is set, it will be called when the system
needs to reboot to the good server. But currently, this keeps the reboot
from happening. The SWITCH_TO_GOOD is just a way to get to a new kernel,
it may not mean to not reboot.
Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
Currently the option used to scp both the modules to the target as well
as the kernel image are the same (SCP_TO_TARGET). But some embedded
boards may require them to be different. The modules may need to be put
directly on the board, but the kernel image may need to go to a
tftpserver.
Add the option SCP_TO_TARGET_INSTALL that will allow the user to change
the config so that they may have the modules and image got to different
machines.
Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
When IGNORE_ERRORS is set, ktest will not fail a test if a backtrace
is detected. But this can be an issue if the user added it in the
config but forgot to remove it. They may be left wondering why their
test did not fail, or even worse, why their bisect gave the wrong
commit.
Add a warning in the output if IGNORE_WARNINGS is set, and ktest detects
a kernel error.
Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
Pull trivial tree from Jiri Kosina:
"It's indeed trivial -- mostly documentation updates and a bunch of
typo fixes from Masanari.
There are also several linux/version.h include removals from Jesper."
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/trivial: (101 commits)
kcore: fix spelling in read_kcore() comment
constify struct pci_dev * in obvious cases
Revert "char: Fix typo in viotape.c"
init: fix wording error in mm_init comment
usb: gadget: Kconfig: fix typo for 'different'
Revert "power, max8998: Include linux/module.h just once in drivers/power/max8998_charger.c"
writeback: fix fn name in writeback_inodes_sb_nr_if_idle() comment header
writeback: fix typo in the writeback_control comment
Documentation: Fix multiple typo in Documentation
tpm_tis: fix tis_lock with respect to RCU
Revert "media: Fix typo in mixer_drv.c and hdmi_drv.c"
Doc: Update numastat.txt
qla4xxx: Add missing spaces to error messages
compiler.h: Fix typo
security: struct security_operations kerneldoc fix
Documentation: broken URL in libata.tmpl
Documentation: broken URL in filesystems.tmpl
mtd: simplify return logic in do_map_probe()
mm: fix comment typo of truncate_inode_pages_range
power: bq27x00: Fix typos in comment
...
make_min_config test failed to work because the snowball board I was tesing
it against had a config that would not build. But the make_min_config
only tested the testing part and ignored build failures. The end result
was a config file that would not boot.
This time, for real.
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Merge tag 'ktest-fix-make-min-failed-build-for-real' of git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/linux-ktest
While demoing ktest at ELC in 2012, it was embarrassing that the
make_min_config test failed to work because the snowball board I was
testing it against had a config that would not build. But the
make_min_config only tested the testing part and ignored build failures.
The end result was a config file that would not boot.
This time, for real.
* tag 'ktest-fix-make-min-failed-build-for-real' of git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/linux-ktest:
ktest: Fix make_min_config test when build fails
The make_min_config does not take into account when the build fails,
resulting in a invalid MIN_CONFIG .config file. When the build fails,
it is ignored and the boot test is executed, using the previous built
kernel. The configs that should be tested are not tested and they may
be added or removed depending on the result of the last kernel that
succeeded to be built.
If the build fails, mark the current config as a failure and the
configs that were disabled may still be needed.
Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/linux-ktest:
ktest: Add INGORE_ERRORS to ignore warnings in boot up
ktest: Still do reboot even for REBOOT_TYPE = script
ktest: Fix compare script to test if options are not documented
ktest: Detect typos in option names
ktest: Have all values be set by defaults
ktest: Change initialization of defaults hash to perl format
ktest: Add options SWITCH_TO_GOOD and SWITCH_TO_TEST
ktest: Allow overriding bisect test results
ktest: Evaluate options before processing them
ktest: Evaluate $KERNEL_VERSION in both install and post install
ktest: Only ask options needed for install
ktest: When creating a new config, ask for BUILD_OPTIONS
ktest: Do not ask for some options if the only test is build
ktest: Ask for type of test when creating a new config
ktest: Allow bisect test to restart where it left off
ktest: When creating new config, allow the use of ${THIS_DIR}
ktest: Add default for ssh-user, build-target and target-image
ktest: Allow success logs to be stored
ktest: Save test output
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/trivial: (53 commits)
Kconfig: acpi: Fix typo in comment.
misc latin1 to utf8 conversions
devres: Fix a typo in devm_kfree comment
btrfs: free-space-cache.c: remove extra semicolon.
fat: Spelling s/obsolate/obsolete/g
SCSI, pmcraid: Fix spelling error in a pmcraid_err() call
tools/power turbostat: update fields in manpage
mac80211: drop spelling fix
types.h: fix comment spelling for 'architectures'
typo fixes: aera -> area, exntension -> extension
devices.txt: Fix typo of 'VMware'.
sis900: Fix enum typo 'sis900_rx_bufer_status'
decompress_bunzip2: remove invalid vi modeline
treewide: Fix comment and string typo 'bufer'
hyper-v: Update MAINTAINERS
treewide: Fix typos in various parts of the kernel, and fix some comments.
clockevents: drop unknown Kconfig symbol GENERIC_CLOCKEVENTS_MIGR
gpio: Kconfig: drop unknown symbol 'CS5535_GPIO'
leds: Kconfig: Fix typo 'D2NET_V2'
sound: Kconfig: drop unknown symbol ARCH_CLPS7500
...
Fix up trivial conflicts in arch/powerpc/platforms/40x/Kconfig (some new
kconfig additions, close to removed commented-out old ones)
When testing a kernel that has warnings, ktest.pl will fail the test
when it sees the warning. If you need to test the the kernel and want
to ignore the errors that are produced, the option IGNORE_ERRORS has
been added. When IGNORE_ERRORS is set to something other than 0, it will
ignore call traces due to WARN_ON().
Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
The REBOOT_TYPE may be either grub or script, if it is script
it is expected that a REBOOT_SCRIPT is defined.
With the SWITCH_TO_TEST which is the complement of SWITCH_TO_GOOD,
which does basically the same thing as REBOOT_SCRIPT and but for
both grub and script, the REBOOT_SCRIPT does not need to be mandatory
anymore.
Do not require the REBOOT_SCRIPT and always run the reboot code
for both grub and script.
Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
The compare script compare-ktest-sample.pl checks for options
that are defined in ktest.pl and not documented in samples.conf,
as well as samples in samples.conf that are not used in ktest.pl.
With the switch to the hash format to initialize the ktest variables
the compare script needs to be updated to handle the change.
Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
It becomes quite annoying when you go to run a test and then
realize that you typed an option name wrong, and the test starts
doing the default action and not what you expected it to do.
It is even more annoying when you wake up the next day after
running the test over night when you discover this.
By testing if all options specified in a config file are
used by either ktest or were used in one of the option's values
we can see if there are any dangling options that were not used.
In such a case, show the user the options that were not used
and ask them if they want to continue or not.
The option IGNORE_UNUSED was also added to allow the user to
override this feature.
Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
Steven Rostedt