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These commits have either been sitting in my INBOX or have been 

in my local tree for some time. I need to push them upstream:
 
  - Separate out config-bisect.pl from ktest.pl.
    This allows users to do config bisects without full ktest setup.
 
  - Email on status change.
    Allow the user to be emailed on test start, finish, failure, etc.
 
  - Other small fixes and enhancements
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Merge tag 'ktest-v4.17' of git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/linux-ktest

Pull ktest updates from Steven Rostedt:
 "These commits have either been sitting in my INBOX or have been in my
  local tree for some time. I need to push them upstream:

   - Separate out config-bisect.pl from ktest.pl.

     This allows users to do config bisects without full ktest setup.

   - Email on status change.

     Allow the user to be emailed on test start, finish, failure, etc.

   - Other small fixes and enhancements"

* tag 'ktest-v4.17' of git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/linux-ktest: (24 commits)
  ktest: Take submenu into account for grub2 menus
  ktest.pl: Add MAIL_COMMAND option to define how to send email
  ktest.pl: Use run_command to execute sending mail
  ktest.pl: Allow dodie be recursive
  ktest.pl: Kill test if mailer is not supported
  ktest.pl: Add MAIL_PATH option to define where to find the mailer
  ktest.pl: No need to print no mailer is specified when mailto is not
  Ktest: add email options to sample.config
  Ktest: Use dodie for critical falures
  Ktest: Add SigInt handling
  Ktest: Add email support
  ktest.pl: Detect if a config-bisect was interrupted
  ktest.pl: Make finding config-bisect.pl dynamic
  ktest.pl: Have ktest.pl pass -r to config-bisect.pl to reset bisect
  ktest.pl: Use diffconfig if available for failed config bisects
  ktest.pl: Allow for the config-bisect.pl output to display to console
  ktest: Use config-bisect.pl in ktest.pl
  ktest: Add standalone config-bisect.pl program
  ktest: Set do_not_reboot=y for CONFIG_BISECT_TYPE=build
  ktest: Set buildonly=1 for CONFIG_BISECT_TYPE=build
  ...
This commit is contained in:
Linus Torvalds 2018-04-11 16:42:27 -07:00
parent 77cb51e65d 6cd110a91f
commit 9697376759
3 changed files with 1092 additions and 273 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

770
tools/testing/ktest/config-bisect.pl Executable file
View File

@ -0,0 +1,770 @@
#!/usr/bin/perl -w
#
# Copyright 2015 - Steven Rostedt, Red Hat Inc.
# Copyright 2017 - Steven Rostedt, VMware, Inc.
#
# Licensed under the terms of the GNU GPL License version 2
#
# usage:
# config-bisect.pl [options] good-config bad-config [good|bad]
#
# Compares a good config to a bad config, then takes half of the diffs
# and produces a config that is somewhere between the good config and
# the bad config. That is, the resulting config will start with the
# good config and will try to make half of the differences of between
# the good and bad configs match the bad config. It tries because of
# dependencies between the two configs it may not be able to change
# exactly half of the configs that are different between the two config
# files.
# Here's a normal way to use it:
#
# $ cd /path/to/linux/kernel
# $ config-bisect.pl /path/to/good/config /path/to/bad/config
# This will now pull in good config (blowing away .config in that directory
# so do not make that be one of the good or bad configs), and then
# build the config with "make oldconfig" to make sure it matches the
# current kernel. It will then store the configs in that result for
# the good config. It does the same for the bad config as well.
# The algorithm will run, merging half of the differences between
# the two configs and building them with "make oldconfig" to make sure
# the result changes (dependencies may reset changes the tool had made).
# It then copies the result of its good config to /path/to/good/config.tmp
# and the bad config to /path/to/bad/config.tmp (just appends ".tmp" to the
# files passed in). And the ".config" that you should test will be in
# directory
# After the first run, determine if the result is good or bad then
# run the same command appending the result
# For good results:
# $ config-bisect.pl /path/to/good/config /path/to/bad/config good
# For bad results:
# $ config-bisect.pl /path/to/good/config /path/to/bad/config bad
# Do not change the good-config or bad-config, config-bisect.pl will
# copy the good-config to a temp file with the same name as good-config
# but with a ".tmp" after it. It will do the same with the bad-config.
# If "good" or "bad" is not stated at the end, it will copy the good and
# bad configs to the .tmp versions. If a .tmp version already exists, it will
# warn before writing over them (-r will not warn, and just write over them).
# If the last config is labeled "good", then it will copy it to the good .tmp
# version. If the last config is labeled "bad", it will copy it to the bad
# .tmp version. It will continue this until it can not merge the two any more
# without the result being equal to either the good or bad .tmp configs.
my $start = 0;
my $val = "";
my $pwd = `pwd`;
chomp $pwd;
my $tree = $pwd;
my $build;
my $output_config;
my $reset_bisect;
sub usage {
print << "EOF"
usage: config-bisect.pl [-l linux-tree][-b build-dir] good-config bad-config [good|bad]
-l [optional] define location of linux-tree (default is current directory)
-b [optional] define location to build (O=build-dir) (default is linux-tree)
good-config the config that is considered good
bad-config the config that does not work
"good" add this if the last run produced a good config
"bad" add this if the last run produced a bad config
If "good" or "bad" is not specified, then it is the start of a new bisect
Note, each run will create copy of good and bad configs with ".tmp" appended.
EOF
;
exit(-1);
}
sub doprint {
print @_;
}
sub dodie {
doprint "CRITICAL FAILURE... ", @_, "\n";
die @_, "\n";
}
sub expand_path {
my ($file) = @_;
if ($file =~ m,^/,) {
return $file;
}
return "$pwd/$file";
}
sub read_prompt {
my ($cancel, $prompt) = @_;
my $ans;
for (;;) {
if ($cancel) {
print "$prompt [y/n/C] ";
} else {
print "$prompt [y/N] ";
}
$ans = <STDIN>;
chomp $ans;
if ($ans =~ /^\s*$/) {
if ($cancel) {
$ans = "c";
} else {
$ans = "n";
}
}
last if ($ans =~ /^y$/i || $ans =~ /^n$/i);
if ($cancel) {
last if ($ans =~ /^c$/i);
print "Please answer either 'y', 'n' or 'c'.\n";
} else {
print "Please answer either 'y' or 'n'.\n";
}
}
if ($ans =~ /^c/i) {
exit;
}
if ($ans !~ /^y$/i) {
return 0;
}
return 1;
}
sub read_yn {
my ($prompt) = @_;
return read_prompt 0, $prompt;
}
sub read_ync {
my ($prompt) = @_;
return read_prompt 1, $prompt;
}
sub run_command {
my ($command, $redirect) = @_;
my $start_time;
my $end_time;
my $dord = 0;
my $pid;
$start_time = time;
doprint("$command ... ");
$pid = open(CMD, "$command 2>&1 |") or
dodie "unable to exec $command";
if (defined($redirect)) {
open (RD, ">$redirect") or
dodie "failed to write to redirect $redirect";
$dord = 1;
}
while (<CMD>) {
print RD if ($dord);
}
waitpid($pid, 0);
my $failed = $?;
close(CMD);
close(RD) if ($dord);
$end_time = time;
my $delta = $end_time - $start_time;
if ($delta == 1) {
doprint "[1 second] ";
} else {
doprint "[$delta seconds] ";
}
if ($failed) {
doprint "FAILED!\n";
} else {
doprint "SUCCESS\n";
}
return !$failed;
}
###### CONFIG BISECT ######
# config_ignore holds the configs that were set (or unset) for
# a good config and we will ignore these configs for the rest
# of a config bisect. These configs stay as they were.
my %config_ignore;
# config_set holds what all configs were set as.
my %config_set;
# config_off holds the set of configs that the bad config had disabled.
# We need to record them and set them in the .config when running
# olddefconfig, because olddefconfig keeps the defaults.
my %config_off;
# config_off_tmp holds a set of configs to turn off for now
my @config_off_tmp;
# config_list is the set of configs that are being tested
my %config_list;
my %null_config;
my %dependency;
my $make;
sub make_oldconfig {
if (!run_command "$make olddefconfig") {
# Perhaps olddefconfig doesn't exist in this version of the kernel
# try oldnoconfig
doprint "olddefconfig failed, trying make oldnoconfig\n";
if (!run_command "$make oldnoconfig") {
doprint "oldnoconfig failed, trying yes '' | make oldconfig\n";
# try a yes '' | oldconfig
run_command "yes '' | $make oldconfig" or
dodie "failed make config oldconfig";
}
}
}
sub assign_configs {
my ($hash, $config) = @_;
doprint "Reading configs from $config\n";
open (IN, $config)
or dodie "Failed to read $config";
while (<IN>) {
chomp;
if (/^((CONFIG\S*)=.*)/) {
${$hash}{$2} = $1;
} elsif (/^(# (CONFIG\S*) is not set)/) {
${$hash}{$2} = $1;
}
}
close(IN);
}
sub process_config_ignore {
my ($config) = @_;
assign_configs \%config_ignore, $config;
}
sub get_dependencies {
my ($config) = @_;
my $arr = $dependency{$config};
if (!defined($arr)) {
return ();
}
my @deps = @{$arr};
foreach my $dep (@{$arr}) {
print "ADD DEP $dep\n";
@deps = (@deps, get_dependencies $dep);
}
return @deps;
}
sub save_config {
my ($pc, $file) = @_;
my %configs = %{$pc};
doprint "Saving configs into $file\n";
open(OUT, ">$file") or dodie "Can not write to $file";
foreach my $config (keys %configs) {
print OUT "$configs{$config}\n";
}
close(OUT);
}
sub create_config {
my ($name, $pc) = @_;
doprint "Creating old config from $name configs\n";
save_config $pc, $output_config;
make_oldconfig;
}
# compare two config hashes, and return configs with different vals.
# It returns B's config values, but you can use A to see what A was.
sub diff_config_vals {
my ($pa, $pb) = @_;
# crappy Perl way to pass in hashes.
my %a = %{$pa};
my %b = %{$pb};
my %ret;
foreach my $item (keys %a) {
if (defined($b{$item}) && $b{$item} ne $a{$item}) {
$ret{$item} = $b{$item};
}
}
return %ret;
}
# compare two config hashes and return the configs in B but not A
sub diff_configs {
my ($pa, $pb) = @_;
my %ret;
# crappy Perl way to pass in hashes.
my %a = %{$pa};
my %b = %{$pb};
foreach my $item (keys %b) {
if (!defined($a{$item})) {
$ret{$item} = $b{$item};
}
}
return %ret;
}
# return if two configs are equal or not
# 0 is equal +1 b has something a does not
# +1 if a and b have a different item.
# -1 if a has something b does not
sub compare_configs {
my ($pa, $pb) = @_;
my %ret;
# crappy Perl way to pass in hashes.
my %a = %{$pa};
my %b = %{$pb};
foreach my $item (keys %b) {
if (!defined($a{$item})) {
return 1;
}
if ($a{$item} ne $b{$item}) {
return 1;
}
}
foreach my $item (keys %a) {
if (!defined($b{$item})) {
return -1;
}
}
return 0;
}
sub process_failed {
my ($config) = @_;
doprint "\n\n***************************************\n";
doprint "Found bad config: $config\n";
doprint "***************************************\n\n";
}
sub process_new_config {
my ($tc, $nc, $gc, $bc) = @_;
my %tmp_config = %{$tc};
my %good_configs = %{$gc};
my %bad_configs = %{$bc};
my %new_configs;
my $runtest = 1;
my $ret;
create_config "tmp_configs", \%tmp_config;
assign_configs \%new_configs, $output_config;
$ret = compare_configs \%new_configs, \%bad_configs;
if (!$ret) {
doprint "New config equals bad config, try next test\n";
$runtest = 0;
}
if ($runtest) {
$ret = compare_configs \%new_configs, \%good_configs;
if (!$ret) {
doprint "New config equals good config, try next test\n";
$runtest = 0;
}
}
%{$nc} = %new_configs;
return $runtest;
}
sub convert_config {
my ($config) = @_;
if ($config =~ /^# (.*) is not set/) {
$config = "$1=n";
}
$config =~ s/^CONFIG_//;
return $config;
}
sub print_config {
my ($sym, $config) = @_;
$config = convert_config $config;
doprint "$sym$config\n";
}
sub print_config_compare {
my ($good_config, $bad_config) = @_;
$good_config = convert_config $good_config;
$bad_config = convert_config $bad_config;
my $good_value = $good_config;
my $bad_value = $bad_config;
$good_value =~ s/(.*)=//;
my $config = $1;
$bad_value =~ s/.*=//;
doprint " $config $good_value -> $bad_value\n";
}
# Pass in:
# $phalf: half of the configs names you want to add
# $oconfigs: The orginial configs to start with
# $sconfigs: The source to update $oconfigs with (from $phalf)
# $which: The name of which half that is updating (top / bottom)
# $type: The name of the source type (good / bad)
sub make_half {
my ($phalf, $oconfigs, $sconfigs, $which, $type) = @_;
my @half = @{$phalf};
my %orig_configs = %{$oconfigs};
my %source_configs = %{$sconfigs};
my %tmp_config = %orig_configs;
doprint "Settings bisect with $which half of $type configs:\n";
foreach my $item (@half) {
doprint "Updating $item to $source_configs{$item}\n";
$tmp_config{$item} = $source_configs{$item};
}
return %tmp_config;
}
sub run_config_bisect {
my ($pgood, $pbad) = @_;
my %good_configs = %{$pgood};
my %bad_configs = %{$pbad};
my %diff_configs = diff_config_vals \%good_configs, \%bad_configs;
my %b_configs = diff_configs \%good_configs, \%bad_configs;
my %g_configs = diff_configs \%bad_configs, \%good_configs;
# diff_arr is what is in both good and bad but are different (y->n)
my @diff_arr = keys %diff_configs;
my $len_diff = $#diff_arr + 1;
# b_arr is what is in bad but not in good (has depends)
my @b_arr = keys %b_configs;
my $len_b = $#b_arr + 1;
# g_arr is what is in good but not in bad
my @g_arr = keys %g_configs;
my $len_g = $#g_arr + 1;
my $runtest = 0;
my %new_configs;
my $ret;
# Look at the configs that are different between good and bad.
# This does not include those that depend on other configs
# (configs depending on other configs that are not set would
# not show up even as a "# CONFIG_FOO is not set"
doprint "# of configs to check: $len_diff\n";
doprint "# of configs showing only in good: $len_g\n";
doprint "# of configs showing only in bad: $len_b\n";
if ($len_diff > 0) {
# Now test for different values
doprint "Configs left to check:\n";
doprint " Good Config\t\t\tBad Config\n";
doprint " -----------\t\t\t----------\n";
foreach my $item (@diff_arr) {
doprint " $good_configs{$item}\t$bad_configs{$item}\n";
}
my $half = int($#diff_arr / 2);
my @tophalf = @diff_arr[0 .. $half];
doprint "Set tmp config to be good config with some bad config values\n";
my %tmp_config = make_half \@tophalf, \%good_configs,
\%bad_configs, "top", "bad";
$runtest = process_new_config \%tmp_config, \%new_configs,
\%good_configs, \%bad_configs;
if (!$runtest) {
doprint "Set tmp config to be bad config with some good config values\n";
my %tmp_config = make_half \@tophalf, \%bad_configs,
\%good_configs, "top", "good";
$runtest = process_new_config \%tmp_config, \%new_configs,
\%good_configs, \%bad_configs;
}
}
if (!$runtest && $len_diff > 0) {
# do the same thing, but this time with bottom half
my $half = int($#diff_arr / 2);
my @bottomhalf = @diff_arr[$half+1 .. $#diff_arr];
doprint "Set tmp config to be good config with some bad config values\n";
my %tmp_config = make_half \@bottomhalf, \%good_configs,
\%bad_configs, "bottom", "bad";
$runtest = process_new_config \%tmp_config, \%new_configs,
\%good_configs, \%bad_configs;
if (!$runtest) {
doprint "Set tmp config to be bad config with some good config values\n";
my %tmp_config = make_half \@bottomhalf, \%bad_configs,
\%good_configs, "bottom", "good";
$runtest = process_new_config \%tmp_config, \%new_configs,
\%good_configs, \%bad_configs;
}
}
if ($runtest) {
make_oldconfig;
doprint "READY TO TEST .config IN $build\n";
return 0;
}
doprint "\n%%%%%%%% FAILED TO FIND SINGLE BAD CONFIG %%%%%%%%\n";
doprint "Hmm, can't make any more changes without making good == bad?\n";
doprint "Difference between good (+) and bad (-)\n";
foreach my $item (keys %bad_configs) {
if (!defined($good_configs{$item})) {
print_config "-", $bad_configs{$item};
}
}
foreach my $item (keys %good_configs) {
next if (!defined($bad_configs{$item}));
if ($good_configs{$item} ne $bad_configs{$item}) {
print_config_compare $good_configs{$item}, $bad_configs{$item};
}
}
foreach my $item (keys %good_configs) {
if (!defined($bad_configs{$item})) {
print_config "+", $good_configs{$item};
}
}
return -1;
}
sub config_bisect {
my ($good_config, $bad_config) = @_;
my $ret;
my %good_configs;
my %bad_configs;
my %tmp_configs;
doprint "Run good configs through make oldconfig\n";
assign_configs \%tmp_configs, $good_config;
create_config "$good_config", \%tmp_configs;
assign_configs \%good_configs, $output_config;
doprint "Run bad configs through make oldconfig\n";
assign_configs \%tmp_configs, $bad_config;
create_config "$bad_config", \%tmp_configs;
assign_configs \%bad_configs, $output_config;
save_config \%good_configs, $good_config;
save_config \%bad_configs, $bad_config;
return run_config_bisect \%good_configs, \%bad_configs;
}
while ($#ARGV >= 0) {
if ($ARGV[0] !~ m/^-/) {
last;
}
my $opt = shift @ARGV;
if ($opt eq "-b") {
$val = shift @ARGV;
if (!defined($val)) {
die "-b requires value\n";
}
$build = $val;
}
elsif ($opt eq "-l") {
$val = shift @ARGV;
if (!defined($val)) {
die "-l requires value\n";
}
$tree = $val;
}
elsif ($opt eq "-r") {
$reset_bisect = 1;
}
elsif ($opt eq "-h") {
usage;
}
else {
die "Unknow option $opt\n";
}
}
$build = $tree if (!defined($build));
$tree = expand_path $tree;
$build = expand_path $build;
if ( ! -d $tree ) {
die "$tree not a directory\n";
}
if ( ! -d $build ) {
die "$build not a directory\n";
}
usage if $#ARGV < 1;
if ($#ARGV == 1) {
$start = 1;
} elsif ($#ARGV == 2) {
$val = $ARGV[2];
if ($val ne "good" && $val ne "bad") {
die "Unknown command '$val', bust be either \"good\" or \"bad\"\n";
}
} else {
usage;
}
my $good_start = expand_path $ARGV[0];
my $bad_start = expand_path $ARGV[1];
my $good = "$good_start.tmp";
my $bad = "$bad_start.tmp";
$make = "make";
if ($build ne $tree) {
$make = "make O=$build"
}
$output_config = "$build/.config";
if ($start) {
if ( ! -f $good_start ) {
die "$good_start not found\n";
}
if ( ! -f $bad_start ) {
die "$bad_start not found\n";
}
if ( -f $good || -f $bad ) {
my $p = "";
if ( -f $good ) {
$p = "$good exists\n";
}
if ( -f $bad ) {
$p = "$p$bad exists\n";
}
if (!defined($reset_bisect)) {
if (!read_yn "${p}Overwrite and start new bisect anyway?") {
exit (-1);
}
}
}
run_command "cp $good_start $good" or die "failed to copy to $good\n";
run_command "cp $bad_start $bad" or die "faield to copy to $bad\n";
} else {
if ( ! -f $good ) {
die "Can not find file $good\n";
}
if ( ! -f $bad ) {
die "Can not find file $bad\n";
}
if ($val eq "good") {
run_command "cp $output_config $good" or die "failed to copy $config to $good\n";
} elsif ($val eq "bad") {
run_command "cp $output_config $bad" or die "failed to copy $config to $bad\n";
}
}
chdir $tree || die "can't change directory to $tree";
my $ret = config_bisect $good, $bad;
if (!$ret) {
exit(0);
}
if ($ret > 0) {
doprint "Cleaning temp files\n";
run_command "rm $good";
run_command "rm $bad";
exit(1);
} else {
doprint "See good and bad configs for details:\n";
doprint "good: $good\n";
doprint "bad: $bad\n";
doprint "%%%%%%%% FAILED TO FIND SINGLE BAD CONFIG %%%%%%%%\n";
}
exit(2);

517
tools/testing/ktest/ktest.pl
View File

@ -10,6 +10,7 @@ use Fcntl qw(F_GETFL F_SETFL O_NONBLOCK);
use File::Path qw(mkpath);
use File::Copy qw(cp);
use FileHandle;
use FindBin;
my $VERSION = "0.2";
@ -22,6 +23,11 @@ my %evals;
#default opts
my %default = (
"MAILER" => "sendmail", # default mailer
"EMAIL_ON_ERROR" => 1,
"EMAIL_WHEN_FINISHED" => 1,
"EMAIL_WHEN_CANCELED" => 0,
"EMAIL_WHEN_STARTED" => 0,
"NUM_TESTS" => 1,
"TEST_TYPE" => "build",
"BUILD_TYPE" => "randconfig",
@ -59,6 +65,7 @@ my %default = (
"GRUB_REBOOT" => "grub2-reboot",
"SYSLINUX" => "extlinux",
"SYSLINUX_PATH" => "/boot/extlinux",
"CONNECT_TIMEOUT" => 25,
# required, and we will ask users if they don't have them but we keep the default
# value something that is common.
@ -163,6 +170,8 @@ my $store_failures;
my $store_successes;
my $test_name;
my $timeout;
my $connect_timeout;
my $config_bisect_exec;
my $booted_timeout;
my $detect_triplefault;
my $console;
@ -204,6 +213,20 @@ my $install_time;
my $reboot_time;
my $test_time;
my $pwd;
my $dirname = $FindBin::Bin;
my $mailto;
my $mailer;
my $mail_path;
my $mail_command;
my $email_on_error;
my $email_when_finished;
my $email_when_started;
my $email_when_canceled;
my $script_start_time = localtime();
# set when a test is something other that just building or install
# which would require more options.
my $buildonly = 1;
@ -229,6 +252,14 @@ my $no_reboot = 1;
my $reboot_success = 0;
my %option_map = (
"MAILTO" => \$mailto,
"MAILER" => \$mailer,
"MAIL_PATH" => \$mail_path,
"MAIL_COMMAND" => \$mail_command,
"EMAIL_ON_ERROR" => \$email_on_error,
"EMAIL_WHEN_FINISHED" => \$email_when_finished,
"EMAIL_WHEN_STARTED" => \$email_when_started,
"EMAIL_WHEN_CANCELED" => \$email_when_canceled,
"MACHINE" => \$machine,
"SSH_USER" => \$ssh_user,
"TMP_DIR" => \$tmpdir,
@ -296,6 +327,8 @@ my %option_map = (
"STORE_SUCCESSES" => \$store_successes,
"TEST_NAME" => \$test_name,
"TIMEOUT" => \$timeout,
"CONNECT_TIMEOUT" => \$connect_timeout,
"CONFIG_BISECT_EXEC" => \$config_bisect_exec,
"BOOTED_TIMEOUT" => \$booted_timeout,
"CONSOLE" => \$console,
"CLOSE_CONSOLE_SIGNAL" => \$close_console_signal,
@ -337,6 +370,7 @@ my %used_options;
# default variables that can be used
chomp ($variable{"PWD"} = `pwd`);
$pwd = $variable{"PWD"};
$config_help{"MACHINE"} = << "EOF"
The machine hostname that you will test.
@ -718,21 +752,13 @@ sub set_value {
my $prvalue = process_variables($rvalue);
if ($buildonly && $lvalue =~ /^TEST_TYPE(\[.*\])?$/ && $prvalue ne "build") {
if ($lvalue =~ /^(TEST|BISECT|CONFIG_BISECT)_TYPE(\[.*\])?$/ &&
$prvalue !~ /^(config_|)bisect$/ &&
$prvalue !~ /^build$/ &&
$buildonly) {
# Note if a test is something other than build, then we
# will need other mandatory options.
if ($prvalue ne "install") {
# for bisect, we need to check BISECT_TYPE
if ($prvalue ne "bisect") {
$buildonly = 0;
}
} else {
# install still limits some mandatory options.
$buildonly = 2;
}
}
if ($buildonly && $lvalue =~ /^BISECT_TYPE(\[.*\])?$/ && $prvalue ne "build") {
if ($prvalue ne "install") {
$buildonly = 0;
} else {
@ -1140,7 +1166,8 @@ sub __read_config {
sub get_test_case {
print "What test case would you like to run?\n";
print " (build, install or boot)\n";
print " Other tests are available but require editing the config file\n";
print " Other tests are available but require editing ktest.conf\n";
print " (see tools/testing/ktest/sample.conf)\n";
my $ans = <STDIN>;
chomp $ans;
$default{"TEST_TYPE"} = $ans;
@ -1328,8 +1355,8 @@ sub reboot {
my ($time) = @_;
my $powercycle = 0;
# test if the machine can be connected to within 5 seconds
my $stat = run_ssh("echo check machine status", 5);
# test if the machine can be connected to within a few seconds
my $stat = run_ssh("echo check machine status", $connect_timeout);
if (!$stat) {
doprint("power cycle\n");
$powercycle = 1;
@ -1404,10 +1431,18 @@ sub do_not_reboot {
return $test_type eq "build" || $no_reboot ||
($test_type eq "patchcheck" && $opt{"PATCHCHECK_TYPE[$i]"} eq "build") ||
($test_type eq "bisect" && $opt{"BISECT_TYPE[$i]"} eq "build");
($test_type eq "bisect" && $opt{"BISECT_TYPE[$i]"} eq "build") ||
($test_type eq "config_bisect" && $opt{"CONFIG_BISECT_TYPE[$i]"} eq "build");
}
my $in_die = 0;
sub dodie {
# avoid recusion
return if ($in_die);
$in_die = 1;
doprint "CRITICAL FAILURE... ", @_, "\n";
my $i = $iteration;
@ -1426,6 +1461,11 @@ sub dodie {
print " See $opt{LOG_FILE} for more info.\n";
}
if ($email_on_error) {
send_email("KTEST: critical failure for your [$test_type] test",
"Your test started at $script_start_time has failed with:\n@_\n");
}
if ($monitor_cnt) {
# restore terminal settings
system("stty $stty_orig");
@ -1477,7 +1517,7 @@ sub exec_console {
close($pts);
exec $console or
die "Can't open console $console";
dodie "Can't open console $console";
}
sub open_console {
@ -1515,6 +1555,9 @@ sub close_console {
doprint "kill child process $pid\n";
kill $close_console_signal, $pid;
doprint "wait for child process $pid to exit\n";
waitpid($pid, 0);
print "closing!\n";
close($fp);
@ -1625,7 +1668,7 @@ sub save_logs {
if (!-d $dir) {
mkpath($dir) or
die "can't create $dir";
dodie "can't create $dir";
}
my %files = (
@ -1638,7 +1681,7 @@ sub save_logs {
while (my ($name, $source) = each(%files)) {
if (-f "$source") {
cp "$source", "$dir/$name" or
die "failed to copy $source";
dodie "failed to copy $source";
}
}
@ -1692,6 +1735,7 @@ sub run_command {
my $end_time;
my $dolog = 0;
my $dord = 0;
my $dostdout = 0;
my $pid;
$command =~ s/\$SSH_USER/$ssh_user/g;
@ -1710,10 +1754,16 @@ sub run_command {
}
if (defined($redirect)) {
if ($redirect eq 1) {
$dostdout = 1;
# Have the output of the command on its own line
doprint "\n";
} else {
open (RD, ">$redirect") or
dodie "failed to write to redirect $redirect";
$dord = 1;
}
}
my $hit_timeout = 0;
@ -1734,6 +1784,7 @@ sub run_command {
}
print LOG $line if ($dolog);
print RD $line if ($dord);
print $line if ($dostdout);
}
waitpid($pid, 0);
@ -1812,7 +1863,7 @@ sub get_grub2_index {
$ssh_grub =~ s,\$SSH_COMMAND,cat $grub_file,g;
open(IN, "$ssh_grub |")
or die "unable to get $grub_file";
or dodie "unable to get $grub_file";
my $found = 0;
@ -1821,13 +1872,13 @@ sub get_grub2_index {
$grub_number++;
$found = 1;
last;
} elsif (/^menuentry\s/) {
} elsif (/^menuentry\s|^submenu\s/) {
$grub_number++;
}
}
close(IN);
die "Could not find '$grub_menu' in $grub_file on $machine"
dodie "Could not find '$grub_menu' in $grub_file on $machine"
if (!$found);
doprint "$grub_number\n";
$last_grub_menu = $grub_menu;
@ -1855,7 +1906,7 @@ sub get_grub_index {
$ssh_grub =~ s,\$SSH_COMMAND,cat /boot/grub/menu.lst,g;
open(IN, "$ssh_grub |")
or die "unable to get menu.lst";
or dodie "unable to get menu.lst";
my $found = 0;
@ -1870,7 +1921,7 @@ sub get_grub_index {
}
close(IN);
die "Could not find '$grub_menu' in /boot/grub/menu on $machine"
dodie "Could not find '$grub_menu' in /boot/grub/menu on $machine"
if (!$found);
doprint "$grub_number\n";
$last_grub_menu = $grub_menu;
@ -1983,7 +2034,7 @@ sub monitor {
my $full_line = "";
open(DMESG, "> $dmesg") or
die "unable to write to $dmesg";
dodie "unable to write to $dmesg";
reboot_to;
@ -2862,7 +2913,7 @@ sub run_bisect {
sub update_bisect_replay {
my $tmp_log = "$tmpdir/ktest_bisect_log";
run_command "git bisect log > $tmp_log" or
die "can't create bisect log";
dodie "can't create bisect log";
return $tmp_log;
}
@ -2871,9 +2922,9 @@ sub bisect {
my $result;
die "BISECT_GOOD[$i] not defined\n" if (!defined($bisect_good));
die "BISECT_BAD[$i] not defined\n" if (!defined($bisect_bad));
die "BISECT_TYPE[$i] not defined\n" if (!defined($bisect_type));
dodie "BISECT_GOOD[$i] not defined\n" if (!defined($bisect_good));
dodie "BISECT_BAD[$i] not defined\n" if (!defined($bisect_bad));
dodie "BISECT_TYPE[$i] not defined\n" if (!defined($bisect_type));
my $good = $bisect_good;
my $bad = $bisect_bad;
@ -2936,7 +2987,7 @@ sub bisect {
if ($check ne "good") {
doprint "TESTING BISECT BAD [$bad]\n";
run_command "git checkout $bad" or
die "Failed to checkout $bad";
dodie "Failed to checkout $bad";
$result = run_bisect $type;
@ -2948,7 +2999,7 @@ sub bisect {
if ($check ne "bad") {
doprint "TESTING BISECT GOOD [$good]\n";
run_command "git checkout $good" or
die "Failed to checkout $good";
dodie "Failed to checkout $good";
$result = run_bisect $type;
@ -2959,7 +3010,7 @@ sub bisect {
# checkout where we started
run_command "git checkout $head" or
die "Failed to checkout $head";
dodie "Failed to checkout $head";
}
run_command "git bisect start$start_files" or
@ -3092,76 +3143,6 @@ sub create_config {
make_oldconfig;
}
# compare two config hashes, and return configs with different vals.
# It returns B's config values, but you can use A to see what A was.
sub diff_config_vals {
my ($pa, $pb) = @_;
# crappy Perl way to pass in hashes.
my %a = %{$pa};
my %b = %{$pb};
my %ret;
foreach my $item (keys %a) {
if (defined($b{$item}) && $b{$item} ne $a{$item}) {
$ret{$item} = $b{$item};
}
}
return %ret;
}
# compare two config hashes and return the configs in B but not A
sub diff_configs {
my ($pa, $pb) = @_;
my %ret;
# crappy Perl way to pass in hashes.
my %a = %{$pa};
my %b = %{$pb};
foreach my $item (keys %b) {
if (!defined($a{$item})) {
$ret{$item} = $b{$item};
}
}
return %ret;
}
# return if two configs are equal or not
# 0 is equal +1 b has something a does not
# +1 if a and b have a different item.
# -1 if a has something b does not
sub compare_configs {
my ($pa, $pb) = @_;
my %ret;
# crappy Perl way to pass in hashes.
my %a = %{$pa};
my %b = %{$pb};
foreach my $item (keys %b) {
if (!defined($a{$item})) {
return 1;
}
if ($a{$item} ne $b{$item}) {
return 1;
}
}
foreach my $item (keys %a) {
if (!defined($b{$item})) {
return -1;
}
}
return 0;
}
sub run_config_bisect_test {
my ($type) = @_;
@ -3174,166 +3155,57 @@ sub run_config_bisect_test {
return $ret;
}
sub process_failed {
my ($config) = @_;
sub config_bisect_end {
my ($good, $bad) = @_;
my $diffexec = "diff -u";
if (-f "$builddir/scripts/diffconfig") {
$diffexec = "$builddir/scripts/diffconfig";
}
doprint "\n\n***************************************\n";
doprint "Found bad config: $config\n";
doprint "No more config bisecting possible.\n";
run_command "$diffexec $good $bad", 1;
doprint "***************************************\n\n";
}
# used for config bisecting
my $good_config;
my $bad_config;
sub process_new_config {
my ($tc, $nc, $gc, $bc) = @_;
my %tmp_config = %{$tc};
my %good_configs = %{$gc};
my %bad_configs = %{$bc};
my %new_configs;
my $runtest = 1;
my $ret;
create_config "tmp_configs", \%tmp_config;
assign_configs \%new_configs, $output_config;
$ret = compare_configs \%new_configs, \%bad_configs;
if (!$ret) {
doprint "New config equals bad config, try next test\n";
$runtest = 0;
}
if ($runtest) {
$ret = compare_configs \%new_configs, \%good_configs;
if (!$ret) {
doprint "New config equals good config, try next test\n";
$runtest = 0;
}
}
%{$nc} = %new_configs;
return $runtest;
}
sub run_config_bisect {
my ($pgood, $pbad) = @_;
my $type = $config_bisect_type;
my %good_configs = %{$pgood};
my %bad_configs = %{$pbad};
my %diff_configs = diff_config_vals \%good_configs, \%bad_configs;
my %b_configs = diff_configs \%good_configs, \%bad_configs;
my %g_configs = diff_configs \%bad_configs, \%good_configs;
my @diff_arr = keys %diff_configs;
my $len_diff = $#diff_arr + 1;
my @b_arr = keys %b_configs;
my $len_b = $#b_arr + 1;
my @g_arr = keys %g_configs;
my $len_g = $#g_arr + 1;
my $runtest = 1;
my %new_configs;
my ($good, $bad, $last_result) = @_;
my $reset = "";
my $cmd;
my $ret;
# First, lets get it down to a single subset.
# Is the problem with a difference in values?
# Is the problem with a missing config?
# Is the problem with a config that breaks things?
if (!length($last_result)) {
$reset = "-r";
}
run_command "$config_bisect_exec $reset -b $outputdir $good $bad $last_result", 1;
# Enable all of one set and see if we get a new bad
# or good config.
# first set the good config to the bad values.
doprint "d=$len_diff g=$len_g b=$len_b\n";
# first lets enable things in bad config that are enabled in good config
if ($len_diff > 0) {
if ($len_b > 0 || $len_g > 0) {
my %tmp_config = %bad_configs;
doprint "Set tmp config to be bad config with good config values\n";
foreach my $item (@diff_arr) {
$tmp_config{$item} = $good_configs{$item};
# config-bisect returns:
# 0 if there is more to bisect
# 1 for finding a good config
# 2 if it can not find any more configs
# -1 (255) on error
if ($run_command_status) {
return $run_command_status;
}
$runtest = process_new_config \%tmp_config, \%new_configs,
\%good_configs, \%bad_configs;
}
}
if (!$runtest && $len_diff > 0) {
if ($len_diff == 1) {
process_failed $diff_arr[0];
return 1;
}
my %tmp_config = %bad_configs;
my $half = int($#diff_arr / 2);
my @tophalf = @diff_arr[0 .. $half];
doprint "Settings bisect with top half:\n";
doprint "Set tmp config to be bad config with some good config values\n";
foreach my $item (@tophalf) {
$tmp_config{$item} = $good_configs{$item};
}
$runtest = process_new_config \%tmp_config, \%new_configs,
\%good_configs, \%bad_configs;
if (!$runtest) {
my %tmp_config = %bad_configs;
doprint "Try bottom half\n";
my @bottomhalf = @diff_arr[$half+1 .. $#diff_arr];
foreach my $item (@bottomhalf) {
$tmp_config{$item} = $good_configs{$item};
}
$runtest = process_new_config \%tmp_config, \%new_configs,
\%good_configs, \%bad_configs;
}
}
if ($runtest) {
$ret = run_config_bisect_test $type;
$ret = run_config_bisect_test $config_bisect_type;
if ($ret) {
doprint "NEW GOOD CONFIG\n";
%good_configs = %new_configs;
run_command "mv $good_config ${good_config}.last";
save_config \%good_configs, $good_config;
%{$pgood} = %good_configs;
# Return 3 for good config
return 3;
} else {
doprint "NEW BAD CONFIG\n";
%bad_configs = %new_configs;
run_command "mv $bad_config ${bad_config}.last";
save_config \%bad_configs, $bad_config;
%{$pbad} = %bad_configs;
# Return 4 for bad config
return 4;
}
return 0;
}
fail "Hmm, need to do a mix match?\n";
return -1;
}
sub config_bisect {
my ($i) = @_;
my $good_config;
my $bad_config;
my $type = $config_bisect_type;
my $ret;
@ -3353,6 +3225,24 @@ sub config_bisect {
$good_config = $output_config;
}
if (!defined($config_bisect_exec)) {
# First check the location that ktest.pl ran
my @locations = ( "$pwd/config-bisect.pl",
"$dirname/config-bisect.pl",
"$builddir/tools/testing/ktest/config-bisect.pl",
undef );
foreach my $loc (@locations) {
doprint "loc = $loc\n";
$config_bisect_exec = $loc;
last if (defined($config_bisect_exec && -x $config_bisect_exec));
}
if (!defined($config_bisect_exec)) {
fail "Could not find an executable config-bisect.pl\n",
" Set CONFIG_BISECT_EXEC to point to config-bisect.pl";
return 1;
}
}
# we don't want min configs to cause issues here.
doprint "Disabling 'MIN_CONFIG' for this test\n";
undef $minconfig;
@ -3361,21 +3251,31 @@ sub config_bisect {
my %bad_configs;
my %tmp_configs;
if (-f "$tmpdir/good_config.tmp" || -f "$tmpdir/bad_config.tmp") {
if (read_yn "Interrupted config-bisect. Continue (n - will start new)?") {
if (-f "$tmpdir/good_config.tmp") {
$good_config = "$tmpdir/good_config.tmp";
} else {
$good_config = "$tmpdir/good_config";
}
if (-f "$tmpdir/bad_config.tmp") {
$bad_config = "$tmpdir/bad_config.tmp";
} else {
$bad_config = "$tmpdir/bad_config";
}
}
}
doprint "Run good configs through make oldconfig\n";
assign_configs \%tmp_configs, $good_config;
create_config "$good_config", \%tmp_configs;
assign_configs \%good_configs, $output_config;
$good_config = "$tmpdir/good_config";
system("cp $output_config $good_config") == 0 or dodie "cp good config";
doprint "Run bad configs through make oldconfig\n";
assign_configs \%tmp_configs, $bad_config;
create_config "$bad_config", \%tmp_configs;
assign_configs \%bad_configs, $output_config;
$good_config = "$tmpdir/good_config";
$bad_config = "$tmpdir/bad_config";
save_config \%good_configs, $good_config;
save_config \%bad_configs, $bad_config;
system("cp $output_config $bad_config") == 0 or dodie "cp bad config";
if (defined($config_bisect_check) && $config_bisect_check ne "0") {
if ($config_bisect_check ne "good") {
@ -3398,10 +3298,21 @@ sub config_bisect {
}
}
my $last_run = "";
do {
$ret = run_config_bisect \%good_configs, \%bad_configs;
$ret = run_config_bisect $good_config, $bad_config, $last_run;
if ($ret == 3) {
$last_run = "good";
} elsif ($ret == 4) {
$last_run = "bad";
}
print_times;
} while (!$ret);
} while ($ret == 3 || $ret == 4);
if ($ret == 2) {
config_bisect_end "$good_config.tmp", "$bad_config.tmp";
}
return $ret if ($ret < 0);
@ -3416,9 +3327,9 @@ sub patchcheck_reboot {
sub patchcheck {
my ($i) = @_;
die "PATCHCHECK_START[$i] not defined\n"
dodie "PATCHCHECK_START[$i] not defined\n"
if (!defined($patchcheck_start));
die "PATCHCHECK_TYPE[$i] not defined\n"
dodie "PATCHCHECK_TYPE[$i] not defined\n"
if (!defined($patchcheck_type));
my $start = $patchcheck_start;
@ -3432,7 +3343,7 @@ sub patchcheck {
if (defined($patchcheck_end)) {
$end = $patchcheck_end;
} elsif ($cherry) {
die "PATCHCHECK_END must be defined with PATCHCHECK_CHERRY\n";
dodie "PATCHCHECK_END must be defined with PATCHCHECK_CHERRY\n";
}
# Get the true sha1's since we can use things like HEAD~3
@ -3496,7 +3407,7 @@ sub patchcheck {
doprint "\nProcessing commit \"$item\"\n\n";
run_command "git checkout $sha1" or
die "Failed to checkout $sha1";
dodie "Failed to checkout $sha1";
# only clean on the first and last patch
if ($item eq $list[0] ||
@ -3587,7 +3498,7 @@ sub read_kconfig {
}
open(KIN, "$kconfig")
or die "Can't open $kconfig";
or dodie "Can't open $kconfig";
while (<KIN>) {
chomp;
@ -3746,7 +3657,7 @@ sub get_depends {
$dep =~ s/^[^$valid]*[$valid]+//;
} else {
die "this should never happen";
dodie "this should never happen";
}
}
@ -4007,7 +3918,7 @@ sub make_min_config {
# update new ignore configs
if (defined($ignore_config)) {
open (OUT, ">$temp_config")
or die "Can't write to $temp_config";
or dodie "Can't write to $temp_config";
foreach my $config (keys %save_configs) {
print OUT "$save_configs{$config}\n";
}
@ -4035,7 +3946,7 @@ sub make_min_config {
# Save off all the current mandatory configs
open (OUT, ">$temp_config")
or die "Can't write to $temp_config";
or dodie "Can't write to $temp_config";
foreach my $config (keys %keep_configs) {
print OUT "$keep_configs{$config}\n";
}
@ -4222,6 +4133,74 @@ sub set_test_option {
return eval_option($name, $option, $i);
}
sub find_mailer {
my ($mailer) = @_;
my @paths = split /:/, $ENV{PATH};
# sendmail is usually in /usr/sbin
$paths[$#paths + 1] = "/usr/sbin";
foreach my $path (@paths) {
if (-x "$path/$mailer") {
return $path;
}
}
return undef;
}
sub do_send_mail {
my ($subject, $message) = @_;
if (!defined($mail_path)) {
# find the mailer
$mail_path = find_mailer $mailer;
if (!defined($mail_path)) {
die "\nCan not find $mailer in PATH\n";
}
}
if (!defined($mail_command)) {
if ($mailer eq "mail" || $mailer eq "mailx") {
$mail_command = "\$MAIL_PATH/\$MAILER -s \'\$SUBJECT\' \$MAILTO <<< \'\$MESSAGE\'";
} elsif ($mailer eq "sendmail" ) {
$mail_command = "echo \'Subject: \$SUBJECT\n\n\$MESSAGE\' | \$MAIL_PATH/\$MAILER -t \$MAILTO";
} else {
die "\nYour mailer: $mailer is not supported.\n";
}
}
$mail_command =~ s/\$MAILER/$mailer/g;
$mail_command =~ s/\$MAIL_PATH/$mail_path/g;
$mail_command =~ s/\$MAILTO/$mailto/g;
$mail_command =~ s/\$SUBJECT/$subject/g;
$mail_command =~ s/\$MESSAGE/$message/g;
run_command $mail_command;
}
sub send_email {
if (defined($mailto)) {
if (!defined($mailer)) {
doprint "No email sent: email or mailer not specified in config.\n";
return;
}
do_send_mail @_;
}
}
sub cancel_test {
if ($email_when_canceled) {
send_email("KTEST: Your [$test_type] test was cancelled",
"Your test started at $script_start_time was cancelled: sig int");
}
die "\nCaught Sig Int, test interrupted: $!\n"
}
$SIG{INT} = qw(cancel_test);
# First we need to do is the builds
for (my $i = 1; $i <= $opt{"NUM_TESTS"}; $i++) {
@ -4245,11 +4224,11 @@ for (my $i = 1; $i <= $opt{"NUM_TESTS"}; $i++) {
$outputdir = set_test_option("OUTPUT_DIR", $i);
$builddir = set_test_option("BUILD_DIR", $i);
chdir $builddir || die "can't change directory to $builddir";
chdir $builddir || dodie "can't change directory to $builddir";
if (!-d $outputdir) {
mkpath($outputdir) or
die "can't create $outputdir";
dodie "can't create $outputdir";
}
$make = "$makecmd O=$outputdir";
@ -4262,10 +4241,16 @@ for (my $i = 1; $i <= $opt{"NUM_TESTS"}; $i++) {
$start_minconfig_defined = 1;
# The first test may override the PRE_KTEST option
if (defined($pre_ktest) && $i == 1) {
if ($i == 1) {
if (defined($pre_ktest)) {
doprint "\n";
run_command $pre_ktest;
}
if ($email_when_started) {
send_email("KTEST: Your [$test_type] test was started",
"Your test was started on $script_start_time");
}
}
# Any test can override the POST_KTEST option
# The last test takes precedence.
@ -4280,7 +4265,7 @@ for (my $i = 1; $i <= $opt{"NUM_TESTS"}; $i++) {
if (!-d $tmpdir) {
mkpath($tmpdir) or
die "can't create $tmpdir";
dodie "can't create $tmpdir";
}
$ENV{"SSH_USER"} = $ssh_user;
@ -4353,7 +4338,7 @@ for (my $i = 1; $i <= $opt{"NUM_TESTS"}; $i++) {
if (defined($checkout)) {
run_command "git checkout $checkout" or
die "failed to checkout $checkout";
dodie "failed to checkout $checkout";
}
$no_reboot = 0;
@ -4428,4 +4413,8 @@ if ($opt{"POWEROFF_ON_SUCCESS"}) {
doprint "\n $successes of $opt{NUM_TESTS} tests were successful\n\n";
if ($email_when_finished) {
send_email("KTEST: Your [$test_type] test has finished!",
"$successes of $opt{NUM_TESTS} tests started at $script_start_time were successful!");
}
exit 0;

60
tools/testing/ktest/sample.conf
View File

@ -1,6 +1,11 @@
#
# Config file for ktest.pl
#
# Place your customized version of this, in the working directory that
# ktest.pl is run from. By default, ktest.pl will look for a file
# called "ktest.conf", but you can name it anything you like and specify
# the name of your config file as the first argument of ktest.pl.
#
# Note, all paths must be absolute
#
@ -396,6 +401,44 @@
#### Optional Config Options (all have defaults) ####
# Email options for receiving notifications. Users must setup
# the specified mailer prior to using this feature.
#
# (default undefined)
#MAILTO =
#
# Supported mailers: sendmail, mail, mailx
# (default sendmail)
#MAILER = sendmail
#
# The executable to run
# (default: for sendmail "/usr/sbin/sendmail", otherwise equals ${MAILER})
#MAIL_EXEC = /usr/sbin/sendmail
#
# The command used to send mail, which uses the above options
# can be modified. By default if the mailer is "sendmail" then
# MAIL_COMMAND = echo \'Subject: $SUBJECT\n\n$MESSAGE\' | $MAIL_PATH/$MAILER -t $MAILTO
# For mail or mailx:
# MAIL_COMMAND = "$MAIL_PATH/$MAILER -s \'$SUBJECT\' $MAILTO <<< \'$MESSAGE\'
# ktest.pl will do the substitution for MAIL_PATH, MAILER, MAILTO at the time
# it sends the mail if "$FOO" format is used. If "${FOO}" format is used,
# then the substitutions will occur at the time the config file is read.
# But note, MAIL_PATH and MAILER require being set by the config file if
# ${MAIL_PATH} or ${MAILER} are used, but not if $MAIL_PATH or $MAILER are.
#MAIL_COMMAND = echo \'Subject: $SUBJECT\n\n$MESSAGE\' | $MAIL_PATH/$MAILER -t $MAILTO
#
# Errors are defined as those would terminate the script
# (default 1)
#EMAIL_ON_ERROR = 1
# (default 1)
#EMAIL_WHEN_FINISHED = 1
# (default 0)
#EMAIL_WHEN_STARTED = 1
#
# Users can cancel the test by Ctrl^C
# (default 0)
#EMAIL_WHEN_CANCELED = 1
# Start a test setup. If you leave this off, all options
# will be default and the test will run once.
# This is a label and not really an option (it takes no value).
@ -725,6 +768,13 @@
# (default 120)
#TIMEOUT = 120
# The timeout in seconds when to test if the box can be rebooted
# or not. Before issuing the reboot command, a ssh connection
# is attempted to see if the target machine is still active.
# If the target does not connect within this timeout, a power cycle
# is issued instead of a reboot.
# CONNECT_TIMEOUT = 25
# In between tests, a reboot of the box may occur, and this
# is the time to wait for the console after it stops producing
# output. Some machines may not produce a large lag on reboot
@ -1167,6 +1217,16 @@
# Set it to "good" to test only the good config and set it
# to "bad" to only test the bad config.
#
# CONFIG_BISECT_EXEC (optional)
# The config bisect is a separate program that comes with ktest.pl.
# By befault, it will look for:
# `pwd`/config-bisect.pl # the location ktest.pl was executed from.
# If it does not find it there, it will look for:
# `dirname <ktest.pl>`/config-bisect.pl # The directory that holds ktest.pl
# If it does not find it there, it will look for:
# ${BUILD_DIR}/tools/testing/ktest/config-bisect.pl
# Setting CONFIG_BISECT_EXEC will override where it looks.
#
# Example:
# TEST_START
# TEST_TYPE = config_bisect