diff options
Diffstat (limited to 'tools/testing/ktest')
| -rwxr-xr-x | tools/testing/ktest/ktest.pl | 20 | ||||
| -rw-r--r-- | tools/testing/ktest/sample.conf | 10 |
2 files changed, 30 insertions, 0 deletions
diff --git a/tools/testing/ktest/ktest.pl b/tools/testing/ktest/ktest.pl index b96d3819c42e..a8e1826e0cba 100755 --- a/tools/testing/ktest/ktest.pl +++ b/tools/testing/ktest/ktest.pl @@ -41,6 +41,7 @@ $default{"CLEAR_LOG"} = 0; $default{"BISECT_MANUAL"} = 0; $default{"BISECT_SKIP"} = 1; $default{"SUCCESS_LINE"} = "login:"; +$default{"DETECT_TRIPLE_FAULT"} = 1; $default{"BOOTED_TIMEOUT"} = 1; $default{"DIE_ON_FAILURE"} = 1; $default{"SSH_EXEC"} = "ssh \$SSH_USER\@\$MACHINE \$SSH_COMMAND"; @@ -101,6 +102,7 @@ my $patchcheck_sleep_time; my $store_failures; my $timeout; my $booted_timeout; +my $detect_triplefault; my $console; my $success_line; my $stop_after_success; @@ -836,6 +838,7 @@ sub monitor { my $failure_start; my $monitor_start = time; my $done = 0; + my $version_found = 0; while (!$done) { @@ -904,6 +907,22 @@ sub monitor { $bug = 1; } + # Detect triple faults by testing the banner + if ($full_line =~ /\bLinux version (\S+).*\n/) { + if ($1 eq $version) { + $version_found = 1; + } elsif ($version_found && $detect_triplefault) { + # We already booted into the kernel we are testing, + # but now we booted into another kernel? + # Consider this a triple fault. + doprint "Aleady booted in Linux kernel $version, but now\n"; + doprint "we booted into Linux kernel $1.\n"; + doprint "Assuming that this is a triple fault.\n"; + doprint "To disable this: set DETECT_TRIPLE_FAULT to 0\n"; + last; + } + } + if ($line =~ /\n/) { $full_line = ""; } @@ -2159,6 +2178,7 @@ for (my $i = 1; $i <= $opt{"NUM_TESTS"}; $i++) { $timeout = set_test_option("TIMEOUT", $i); $booted_timeout = set_test_option("BOOTED_TIMEOUT", $i); $console = set_test_option("CONSOLE", $i); + $detect_triplefault = set_test_option("DETECT_TRIPLE_FAULT", $i); $success_line = set_test_option("SUCCESS_LINE", $i); $stop_after_success = set_test_option("STOP_AFTER_SUCCESS", $i); $stop_after_failure = set_test_option("STOP_AFTER_FAILURE", $i); diff --git a/tools/testing/ktest/sample.conf b/tools/testing/ktest/sample.conf index 48cbcc80602a..c2c072e96032 100644 --- a/tools/testing/ktest/sample.conf +++ b/tools/testing/ktest/sample.conf @@ -518,6 +518,16 @@ # The variables SSH_USER and MACHINE are defined. #REBOOT = ssh $SSH_USER@$MACHINE reboot +# The way triple faults are detected is by testing the kernel +# banner. If the kernel banner for the kernel we are testing is +# found, and then later a kernel banner for another kernel version +# is found, it is considered that we encountered a triple fault, +# and there is no panic or callback, but simply a reboot. +# To disable this (because it did a false positive) set the following +# to 0. +# (default 1) +#DETECT_TRIPLE_FAULT = 0 + #### Per test run options #### # The following options are only allowed in TEST_START sections. # They are ignored in the DEFAULTS sections. |