1# 2# Config file for ktest.pl 3# 4# Note, all paths must be absolute 5# 6 7# Options set in the beginning of the file are considered to be 8# default options. These options can be overriden by test specific 9# options, with the following exceptions: 10# 11# LOG_FILE 12# CLEAR_LOG 13# POWEROFF_ON_SUCCESS 14# REBOOT_ON_SUCCESS 15# 16# Test specific options are set after the label: 17# 18# TEST_START 19# 20# The options after a TEST_START label are specific to that test. 21# Each TEST_START label will set up a new test. If you want to 22# perform a test more than once, you can add the ITERATE label 23# to it followed by the number of times you want that test 24# to iterate. If the ITERATE is left off, the test will only 25# be performed once. 26# 27# TEST_START ITERATE 10 28# 29# You can skip a test by adding SKIP (before or after the ITERATE 30# and number) 31# 32# TEST_START SKIP 33# 34# TEST_START SKIP ITERATE 10 35# 36# TEST_START ITERATE 10 SKIP 37# 38# The SKIP label causes the options and the test itself to be ignored. 39# This is useful to set up several different tests in one config file, and 40# only enabling the ones you want to use for a current test run. 41# 42# You can add default options anywhere in the file as well 43# with the DEFAULTS tag. This allows you to have default options 44# after the test options to keep the test options at the top 45# of the file. You can even place the DEFAULTS tag between 46# test cases (but not in the middle of a single test case) 47# 48# TEST_START 49# MIN_CONFIG = /home/test/config-test1 50# 51# DEFAULTS 52# MIN_CONFIG = /home/test/config-default 53# 54# TEST_START ITERATE 10 55# 56# The above will run the first test with MIN_CONFIG set to 57# /home/test/config-test-1. Then 10 tests will be executed 58# with MIN_CONFIG with /home/test/config-default. 59# 60# You can also disable defaults with the SKIP option 61# 62# DEFAULTS SKIP 63# MIN_CONFIG = /home/test/config-use-sometimes 64# 65# DEFAULTS 66# MIN_CONFIG = /home/test/config-most-times 67# 68# The above will ignore the first MIN_CONFIG. If you want to 69# use the first MIN_CONFIG, remove the SKIP from the first 70# DEFAULTS tag and add it to the second. Be careful, options 71# may only be declared once per test or default. If you have 72# the same option name under the same test or as default 73# ktest will fail to execute, and no tests will run. 74# 75 76#### Config variables #### 77# 78# This config file can also contain "config variables". 79# These are assigned with ":=" instead of the ktest option 80# assigment "=". 81# 82# The difference between ktest options and config variables 83# is that config variables can be used multiple times, 84# where each instance will override the previous instance. 85# And that they only live at time of processing this config. 86# 87# The advantage to config variables are that they can be used 88# by any option or any other config variables to define thing 89# that you may use over and over again in the options. 90# 91# For example: 92# 93# USER := root 94# TARGET := mybox 95# TEST_CASE := ssh ${USER}@${TARGET} /path/to/my/test 96# 97# TEST_START 98# MIN_CONFIG = config1 99# TEST = ${TEST_CASE} 100# 101# TEST_START 102# MIN_CONFIG = config2 103# TEST = ${TEST_CASE} 104# 105# TEST_CASE := ssh ${USER}@${TARGET} /path/to/my/test2 106# 107# TEST_START 108# MIN_CONFIG = config1 109# TEST = ${TEST_CASE} 110# 111# TEST_START 112# MIN_CONFIG = config2 113# TEST = ${TEST_CASE} 114# 115# TEST_DIR := /home/me/test 116# 117# BUILD_DIR = ${TEST_DIR}/linux.git 118# OUTPUT_DIR = ${TEST_DIR}/test 119# 120# Note, the config variables are evaluated immediately, thus 121# updating TARGET after TEST_CASE has been assigned does nothing 122# to TEST_CASE. 123# 124# As shown in the example, to evaluate a config variable, you 125# use the ${X} convention. Simple $X will not work. 126# 127# If the config variable does not exist, the ${X} will not 128# be evaluated. Thus: 129# 130# MAKE_CMD = PATH=/mypath:${PATH} make 131# 132# If PATH is not a config variable, then the ${PATH} in 133# the MAKE_CMD option will be evaluated by the shell when 134# the MAKE_CMD option is passed into shell processing. 135 136#### Using options in other options #### 137# 138# Options that are defined in the config file may also be used 139# by other options. All options are evaulated at time of 140# use (except that config variables are evaluated at config 141# processing time). 142# 143# If an ktest option is used within another option, instead of 144# typing it again in that option you can simply use the option 145# just like you can config variables. 146# 147# MACHINE = mybox 148# 149# TEST = ssh root@${MACHINE} /path/to/test 150# 151# The option will be used per test case. Thus: 152# 153# TEST_TYPE = test 154# TEST = ssh root@{MACHINE} 155# 156# TEST_START 157# MACHINE = box1 158# 159# TEST_START 160# MACHINE = box2 161# 162# For both test cases, MACHINE will be evaluated at the time 163# of the test case. The first test will run ssh root@box1 164# and the second will run ssh root@box2. 165 166#### Mandatory Default Options #### 167 168# These options must be in the default section, although most 169# may be overridden by test options. 170 171# The machine hostname that you will test 172#MACHINE = target 173 174# The box is expected to have ssh on normal bootup, provide the user 175# (most likely root, since you need privileged operations) 176#SSH_USER = root 177 178# The directory that contains the Linux source code 179#BUILD_DIR = /home/test/linux.git 180 181# The directory that the objects will be built 182# (can not be same as BUILD_DIR) 183#OUTPUT_DIR = /home/test/build/target 184 185# The location of the compiled file to copy to the target 186# (relative to OUTPUT_DIR) 187#BUILD_TARGET = arch/x86/boot/bzImage 188 189# The place to put your image on the test machine 190#TARGET_IMAGE = /boot/vmlinuz-test 191 192# A script or command to reboot the box 193# 194# Here is a digital loggers power switch example 195#POWER_CYCLE = wget --no-proxy -O /dev/null -q --auth-no-challenge 'http://admin:admin@power/outlet?5=CCL' 196# 197# Here is an example to reboot a virtual box on the current host 198# with the name "Guest". 199#POWER_CYCLE = virsh destroy Guest; sleep 5; virsh start Guest 200 201# The script or command that reads the console 202# 203# If you use ttywatch server, something like the following would work. 204#CONSOLE = nc -d localhost 3001 205# 206# For a virtual machine with guest name "Guest". 207#CONSOLE = virsh console Guest 208 209# Required version ending to differentiate the test 210# from other linux builds on the system. 211#LOCALVERSION = -test 212 213# The grub title name for the test kernel to boot 214# (Only mandatory if REBOOT_TYPE = grub) 215# 216# Note, ktest.pl will not update the grub menu.lst, you need to 217# manually add an option for the test. ktest.pl will search 218# the grub menu.lst for this option to find what kernel to 219# reboot into. 220# 221# For example, if in the /boot/grub/menu.lst the test kernel title has: 222# title Test Kernel 223# kernel vmlinuz-test 224#GRUB_MENU = Test Kernel 225 226# A script to reboot the target into the test kernel 227# (Only mandatory if REBOOT_TYPE = script) 228#REBOOT_SCRIPT = 229 230#### Optional Config Options (all have defaults) #### 231 232# Start a test setup. If you leave this off, all options 233# will be default and the test will run once. 234# This is a label and not really an option (it takes no value). 235# You can append ITERATE and a number after it to iterate the 236# test a number of times, or SKIP to ignore this test. 237# 238#TEST_START 239#TEST_START ITERATE 5 240#TEST_START SKIP 241 242# Have the following options as default again. Used after tests 243# have already been defined by TEST_START. Optionally, you can 244# just define all default options before the first TEST_START 245# and you do not need this option. 246# 247# This is a label and not really an option (it takes no value). 248# You can append SKIP to this label and the options within this 249# section will be ignored. 250# 251# DEFAULTS 252# DEFAULTS SKIP 253 254# The default test type (default test) 255# The test types may be: 256# build - only build the kernel, do nothing else 257# boot - build and boot the kernel 258# test - build, boot and if TEST is set, run the test script 259# (If TEST is not set, it defaults back to boot) 260# bisect - Perform a bisect on the kernel (see BISECT_TYPE below) 261# patchcheck - Do a test on a series of commits in git (see PATCHCHECK below) 262#TEST_TYPE = test 263 264# Test to run if there is a successful boot and TEST_TYPE is test. 265# Must exit with 0 on success and non zero on error 266# default (undefined) 267#TEST = ssh user@machine /root/run_test 268 269# The build type is any make config type or special command 270# (default randconfig) 271# nobuild - skip the clean and build step 272# useconfig:/path/to/config - use the given config and run 273# oldconfig on it. 274# This option is ignored if TEST_TYPE is patchcheck or bisect 275#BUILD_TYPE = randconfig 276 277# The make command (default make) 278# If you are building a 32bit x86 on a 64 bit host 279#MAKE_CMD = CC=i386-gcc AS=i386-as make ARCH=i386 280 281# Any build options for the make of the kernel (not for other makes, like configs) 282# (default "") 283#BUILD_OPTIONS = -j20 284 285# If you need an initrd, you can add a script or code here to install 286# it. The environment variable KERNEL_VERSION will be set to the 287# kernel version that is used. Remember to add the initrd line 288# to your grub menu.lst file. 289# 290# Here's a couple of examples to use: 291#POST_INSTALL = ssh user@target /sbin/mkinitrd --allow-missing -f /boot/initramfs-test.img $KERNEL_VERSION 292# 293# or on some systems: 294#POST_INSTALL = ssh user@target /sbin/dracut -f /boot/initramfs-test.img $KERNEL_VERSION 295 296# Way to reboot the box to the test kernel. 297# Only valid options so far are "grub" and "script" 298# (default grub) 299# If you specify grub, it will assume grub version 1 300# and will search in /boot/grub/menu.lst for the title $GRUB_MENU 301# and select that target to reboot to the kernel. If this is not 302# your setup, then specify "script" and have a command or script 303# specified in REBOOT_SCRIPT to boot to the target. 304# 305# The entry in /boot/grub/menu.lst must be entered in manually. 306# The test will not modify that file. 307#REBOOT_TYPE = grub 308 309# The min config that is needed to build for the machine 310# A nice way to create this is with the following: 311# 312# $ ssh target 313# $ lsmod > mymods 314# $ scp mymods host:/tmp 315# $ exit 316# $ cd linux.git 317# $ rm .config 318# $ make LSMOD=mymods localyesconfig 319# $ grep '^CONFIG' .config > /home/test/config-min 320# 321# If you want even less configs: 322# 323# log in directly to target (do not ssh) 324# 325# $ su 326# # lsmod | cut -d' ' -f1 | xargs rmmod 327# 328# repeat the above several times 329# 330# # lsmod > mymods 331# # reboot 332# 333# May need to reboot to get your network back to copy the mymods 334# to the host, and then remove the previous .config and run the 335# localyesconfig again. The CONFIG_MIN generated like this will 336# not guarantee network activity to the box so the TEST_TYPE of 337# test may fail. 338# 339# You might also want to set: 340# CONFIG_CMDLINE="<your options here>" 341# randconfig may set the above and override your real command 342# line options. 343# (default undefined) 344#MIN_CONFIG = /home/test/config-min 345 346# Sometimes there's options that just break the boot and 347# you do not care about. Here are a few: 348# # CONFIG_STAGING is not set 349# Staging drivers are horrible, and can break the build. 350# # CONFIG_SCSI_DEBUG is not set 351# SCSI_DEBUG may change your root partition 352# # CONFIG_KGDB_SERIAL_CONSOLE is not set 353# KGDB may cause oops waiting for a connection that's not there. 354# This option points to the file containing config options that will be prepended 355# to the MIN_CONFIG (or be the MIN_CONFIG if it is not set) 356# 357# Note, config options in MIN_CONFIG will override these options. 358# 359# (default undefined) 360#ADD_CONFIG = /home/test/config-broken 361 362# The location on the host where to write temp files 363# (default /tmp/ktest) 364#TMP_DIR = /tmp/ktest 365 366# Optional log file to write the status (recommended) 367# Note, this is a DEFAULT section only option. 368# (default undefined) 369#LOG_FILE = /home/test/logfiles/target.log 370 371# Remove old logfile if it exists before starting all tests. 372# Note, this is a DEFAULT section only option. 373# (default 0) 374#CLEAR_LOG = 0 375 376# Line to define a successful boot up in console output. 377# This is what the line contains, not the entire line. If you need 378# the entire line to match, then use regural expression syntax like: 379# (do not add any quotes around it) 380# 381# SUCCESS_LINE = ^MyBox Login:$ 382# 383# (default "login:") 384#SUCCESS_LINE = login: 385 386# In case the console constantly fills the screen, having 387# a specified time to stop the test after success is recommended. 388# (in seconds) 389# (default 10) 390#STOP_AFTER_SUCCESS = 10 391 392# In case the console constantly fills the screen, having 393# a specified time to stop the test after failure is recommended. 394# (in seconds) 395# (default 60) 396#STOP_AFTER_FAILURE = 60 397 398# In case the console constantly fills the screen, having 399# a specified time to stop the test if it never succeeds nor fails 400# is recommended. 401# Note: this is ignored if a success or failure is detected. 402# (in seconds) 403# (default 600, -1 is to never stop) 404#STOP_TEST_AFTER = 600 405 406# Stop testing if a build fails. If set, the script will end if 407# a failure is detected, otherwise it will save off the .config, 408# dmesg and bootlog in a directory called 409# MACHINE-TEST_TYPE_BUILD_TYPE-fail-yyyymmddhhmmss 410# if the STORE_FAILURES directory is set. 411# (default 1) 412# Note, even if this is set to zero, there are some errors that still 413# stop the tests. 414#DIE_ON_FAILURE = 1 415 416# Directory to store failure directories on failure. If this is not 417# set, DIE_ON_FAILURE=0 will not save off the .config, dmesg and 418# bootlog. This option is ignored if DIE_ON_FAILURE is not set. 419# (default undefined) 420#STORE_FAILURES = /home/test/failures 421 422# Build without doing a make mrproper, or removing .config 423# (default 0) 424#BUILD_NOCLEAN = 0 425 426# As the test reads the console, after it hits the SUCCESS_LINE 427# the time it waits for the monitor to settle down between reads 428# can usually be lowered. 429# (in seconds) (default 1) 430#BOOTED_TIMEOUT = 1 431 432# The timeout in seconds when we consider the box hung after 433# the console stop producing output. Be sure to leave enough 434# time here to get pass a reboot. Some machines may not produce 435# any console output for a long time during a reboot. You do 436# not want the test to fail just because the system was in 437# the process of rebooting to the test kernel. 438# (default 120) 439#TIMEOUT = 120 440 441# In between tests, a reboot of the box may occur, and this 442# is the time to wait for the console after it stops producing 443# output. Some machines may not produce a large lag on reboot 444# so this should accommodate it. 445# The difference between this and TIMEOUT, is that TIMEOUT happens 446# when rebooting to the test kernel. This sleep time happens 447# after a test has completed and we are about to start running 448# another test. If a reboot to the reliable kernel happens, 449# we wait SLEEP_TIME for the console to stop producing output 450# before starting the next test. 451# (default 60) 452#SLEEP_TIME = 60 453 454# The time in between bisects to sleep (in seconds) 455# (default 60) 456#BISECT_SLEEP_TIME = 60 457 458# The time in between patch checks to sleep (in seconds) 459# (default 60) 460#PATCHCHECK_SLEEP_TIME = 60 461 462# Reboot the target box on error (default 0) 463#REBOOT_ON_ERROR = 0 464 465# Power off the target on error (ignored if REBOOT_ON_ERROR is set) 466# Note, this is a DEFAULT section only option. 467# (default 0) 468#POWEROFF_ON_ERROR = 0 469 470# Power off the target after all tests have completed successfully 471# Note, this is a DEFAULT section only option. 472# (default 0) 473#POWEROFF_ON_SUCCESS = 0 474 475# Reboot the target after all test completed successfully (default 1) 476# (ignored if POWEROFF_ON_SUCCESS is set) 477#REBOOT_ON_SUCCESS = 1 478 479# In case there are isses with rebooting, you can specify this 480# to always powercycle after this amount of time after calling 481# reboot. 482# Note, POWERCYCLE_AFTER_REBOOT = 0 does NOT disable it. It just 483# makes it powercycle immediately after rebooting. Do not define 484# it if you do not want it. 485# (default undefined) 486#POWERCYCLE_AFTER_REBOOT = 5 487 488# In case there's isses with halting, you can specify this 489# to always poweroff after this amount of time after calling 490# halt. 491# Note, POWEROFF_AFTER_HALT = 0 does NOT disable it. It just 492# makes it poweroff immediately after halting. Do not define 493# it if you do not want it. 494# (default undefined) 495#POWEROFF_AFTER_HALT = 20 496 497# A script or command to power off the box (default undefined) 498# Needed for POWEROFF_ON_ERROR and SUCCESS 499# 500# Example for digital loggers power switch: 501#POWER_OFF = wget --no-proxy -O /dev/null -q --auth-no-challenge 'http://admin:admin@power/outlet?5=OFF' 502# 503# Example for a virtual guest call "Guest". 504#POWER_OFF = virsh destroy Guest 505 506# The way to execute a command on the target 507# (default ssh $SSH_USER@$MACHINE $SSH_COMMAND";) 508# The variables SSH_USER, MACHINE and SSH_COMMAND are defined 509#SSH_EXEC = ssh $SSH_USER@$MACHINE $SSH_COMMAND"; 510 511# The way to copy a file to the target 512# (default scp $SRC_FILE $SSH_USER@$MACHINE:$DST_FILE) 513# The variables SSH_USER, MACHINE, SRC_FILE and DST_FILE are defined. 514#SCP_TO_TARGET = scp $SRC_FILE $SSH_USER@$MACHINE:$DST_FILE 515 516# The nice way to reboot the target 517# (default ssh $SSH_USER@$MACHINE reboot) 518# The variables SSH_USER and MACHINE are defined. 519#REBOOT = ssh $SSH_USER@$MACHINE reboot 520 521#### Per test run options #### 522# The following options are only allowed in TEST_START sections. 523# They are ignored in the DEFAULTS sections. 524# 525# All of these are optional and undefined by default, although 526# some of these options are required for TEST_TYPE of patchcheck 527# and bisect. 528# 529# 530# CHECKOUT = branch 531# 532# If the BUILD_DIR is a git repository, then you can set this option 533# to checkout the given branch before running the TEST. If you 534# specify this for the first run, that branch will be used for 535# all preceding tests until a new CHECKOUT is set. 536# 537# 538# 539# For TEST_TYPE = patchcheck 540# 541# This expects the BUILD_DIR to be a git repository, and 542# will checkout the PATCHCHECK_START commit. 543# 544# The option BUILD_TYPE will be ignored. 545# 546# The MIN_CONFIG will be used for all builds of the patchcheck. The build type 547# used for patchcheck is oldconfig. 548# 549# PATCHCHECK_START is required and is the first patch to 550# test (the SHA1 of the commit). You may also specify anything 551# that git checkout allows (branch name, tage, HEAD~3). 552# 553# PATCHCHECK_END is the last patch to check (default HEAD) 554# 555# PATCHCHECK_TYPE is required and is the type of test to run: 556# build, boot, test. 557# 558# Note, the build test will look for warnings, if a warning occurred 559# in a file that a commit touches, the build will fail. 560# 561# If BUILD_NOCLEAN is set, then make mrproper will not be run on 562# any of the builds, just like all other TEST_TYPE tests. But 563# what makes patchcheck different from the other tests, is if 564# BUILD_NOCLEAN is not set, only the first and last patch run 565# make mrproper. This helps speed up the test. 566# 567# Example: 568# TEST_START 569# TEST_TYPE = patchcheck 570# CHECKOUT = mybranch 571# PATCHCHECK_TYPE = boot 572# PATCHCHECK_START = 747e94ae3d1b4c9bf5380e569f614eb9040b79e7 573# PATCHCHECK_END = HEAD~2 574# 575# 576# 577# For TEST_TYPE = bisect 578# 579# You can specify a git bisect if the BUILD_DIR is a git repository. 580# The MIN_CONFIG will be used for all builds of the bisect. The build type 581# used for bisecting is oldconfig. 582# 583# The option BUILD_TYPE will be ignored. 584# 585# BISECT_TYPE is the type of test to perform: 586# build - bad fails to build 587# boot - bad builds but fails to boot 588# test - bad boots but fails a test 589# 590# BISECT_GOOD is the commit (SHA1) to label as good (accepts all git good commit types) 591# BISECT_BAD is the commit to label as bad (accepts all git bad commit types) 592# 593# The above three options are required for a bisect operation. 594# 595# BISECT_REPLAY = /path/to/replay/file (optional, default undefined) 596# 597# If an operation failed in the bisect that was not expected to 598# fail. Then the test ends. The state of the BUILD_DIR will be 599# left off at where the failure occurred. You can examine the 600# reason for the failure, and perhaps even find a git commit 601# that would work to continue with. You can run: 602# 603# git bisect log > /path/to/replay/file 604# 605# The adding: 606# 607# BISECT_REPLAY= /path/to/replay/file 608# 609# And running the test again. The test will perform the initial 610# git bisect start, git bisect good, and git bisect bad, and 611# then it will run git bisect replay on this file, before 612# continuing with the bisect. 613# 614# BISECT_START = commit (optional, default undefined) 615# 616# As with BISECT_REPLAY, if the test failed on a commit that 617# just happen to have a bad commit in the middle of the bisect, 618# and you need to skip it. If BISECT_START is defined, it 619# will checkout that commit after doing the initial git bisect start, 620# git bisect good, git bisect bad, and running the git bisect replay 621# if the BISECT_REPLAY is set. 622# 623# BISECT_SKIP = 1 (optional, default 0) 624# 625# If BISECT_TYPE is set to test but the build fails, ktest will 626# simply fail the test and end their. You could use BISECT_REPLAY 627# and BISECT_START to resume after you found a new starting point, 628# or you could set BISECT_SKIP to 1. If BISECT_SKIP is set to 1, 629# when something other than the BISECT_TYPE fails, ktest.pl will 630# run "git bisect skip" and try again. 631# 632# BISECT_FILES = <path> (optional, default undefined) 633# 634# To just run the git bisect on a specific path, set BISECT_FILES. 635# For example: 636# 637# BISECT_FILES = arch/x86 kernel/time 638# 639# Will run the bisect with "git bisect start -- arch/x86 kernel/time" 640# 641# BISECT_REVERSE = 1 (optional, default 0) 642# 643# In those strange instances where it was broken forever 644# and you are trying to find where it started to work! 645# Set BISECT_GOOD to the commit that was last known to fail 646# Set BISECT_BAD to the commit that is known to start working. 647# With BISECT_REVERSE = 1, The test will consider failures as 648# good, and success as bad. 649# 650# BISECT_MANUAL = 1 (optional, default 0) 651# 652# In case there's a problem with automating the bisect for 653# whatever reason. (Can't reboot, want to inspect each iteration) 654# Doing a BISECT_MANUAL will have the test wait for you to 655# tell it if the test passed or failed after each iteration. 656# This is basicall the same as running git bisect yourself 657# but ktest will rebuild and install the kernel for you. 658# 659# BISECT_CHECK = 1 (optional, default 0) 660# 661# Just to be sure the good is good and bad is bad, setting 662# BISECT_CHECK to 1 will start the bisect by first checking 663# out BISECT_BAD and makes sure it fails, then it will check 664# out BISECT_GOOD and makes sure it succeeds before starting 665# the bisect (it works for BISECT_REVERSE too). 666# 667# You can limit the test to just check BISECT_GOOD or 668# BISECT_BAD with BISECT_CHECK = good or 669# BISECT_CHECK = bad, respectively. 670# 671# Example: 672# TEST_START 673# TEST_TYPE = bisect 674# BISECT_GOOD = v2.6.36 675# BISECT_BAD = b5153163ed580e00c67bdfecb02b2e3843817b3e 676# BISECT_TYPE = build 677# MIN_CONFIG = /home/test/config-bisect 678# 679# 680# 681# For TEST_TYPE = config_bisect 682# 683# In those cases that you have two different configs. One of them 684# work, the other does not, and you do not know what config causes 685# the problem. 686# The TEST_TYPE config_bisect will bisect the bad config looking for 687# what config causes the failure. 688# 689# The way it works is this: 690# 691# First it finds a config to work with. Since a different version, or 692# MIN_CONFIG may cause different dependecies, it must run through this 693# preparation. 694# 695# Overwrites any config set in the bad config with a config set in 696# either the MIN_CONFIG or ADD_CONFIG. Thus, make sure these configs 697# are minimal and do not disable configs you want to test: 698# (ie. # CONFIG_FOO is not set). 699# 700# An oldconfig is run on the bad config and any new config that 701# appears will be added to the configs to test. 702# 703# Finally, it generates a config with the above result and runs it 704# again through make oldconfig to produce a config that should be 705# satisfied by kconfig. 706# 707# Then it starts the bisect. 708# 709# The configs to test are cut in half. If all the configs in this 710# half depend on a config in the other half, then the other half 711# is tested instead. If no configs are enabled by either half, then 712# this means a circular dependency exists and the test fails. 713# 714# A config is created with the test half, and the bisect test is run. 715# 716# If the bisect succeeds, then all configs in the generated config 717# are removed from the configs to test and added to the configs that 718# will be enabled for all builds (they will be enabled, but not be part 719# of the configs to examine). 720# 721# If the bisect fails, then all test configs that were not enabled by 722# the config file are removed from the test. These configs will not 723# be enabled in future tests. Since current config failed, we consider 724# this to be a subset of the config that we started with. 725# 726# When we are down to one config, it is considered the bad config. 727# 728# Note, the config chosen may not be the true bad config. Due to 729# dependencies and selections of the kbuild system, mulitple 730# configs may be needed to cause a failure. If you disable the 731# config that was found and restart the test, if the test fails 732# again, it is recommended to rerun the config_bisect with a new 733# bad config without the found config enabled. 734# 735# The option BUILD_TYPE will be ignored. 736# 737# CONFIG_BISECT_TYPE is the type of test to perform: 738# build - bad fails to build 739# boot - bad builds but fails to boot 740# test - bad boots but fails a test 741# 742# CONFIG_BISECT is the config that failed to boot 743# 744# If BISECT_MANUAL is set, it will pause between iterations. 745# This is useful to use just ktest.pl just for the config bisect. 746# If you set it to build, it will run the bisect and you can 747# control what happens in between iterations. It will ask you if 748# the test succeeded or not and continue the config bisect. 749# 750# Example: 751# TEST_START 752# TEST_TYPE = config_bisect 753# CONFIG_BISECT_TYPE = build 754# CONFIG_BISECT = /home/test/�onfig-bad 755# MIN_CONFIG = /home/test/config-min 756# BISECT_MANUAL = 1 757# 758