[PATCH v2 2/2] selftests/pstore: add pstore test scripts going with reboot

@@ -66,6 +66,9 @@ clean_hotplug:
 		make -C $$TARGET clean; \
 	done;
 
+run_pstore_crash:
+	make -C pstore run_crash
+
 INSTALL_PATH ?= install
 INSTALL_PATH := $(abspath $(INSTALL_PATH))
 ALL_SCRIPT := $(INSTALL_PATH)/run_kselftest.sh

@@ -3,10 +3,13 @@
 
 all:
 
-TEST_PROGS := pstore_tests
-TEST_FILES := common_tests
+TEST_PROGS := pstore_tests pstore_post_reboot_tests
+TEST_FILES := common_tests pstore_crash_test
 
 include ../lib.mk
 
+run_crash:
+	@sh pstore_crash_test || { echo "pstore_crash_test: [FAIL]"; exit 1; }
+
 clean:
 	rm -rf logs/* *uuid

@@ -26,11 +26,39 @@ show_result() { # result_value
     fi
 }
 
+check_files_exist() { # type of pstorefs file
+    if [ -e ${1}-${backend}-0 ]; then
+	prlog "ok"
+	for f in `ls ${1}-${backend}-*`; do
+            prlog -e "\t${f}"
+	done
+    else
+	prlog "FAIL"
+	rc=1
+    fi
+}
+
+operate_files() { # tested value, files, operation
+    if [ $1 -eq 0 ]; then
+	prlog
+	for f in $2; do
+	    prlog -ne "\t${f} ... "
+	    # execute operation
+	    $3 $f
+	    show_result $?
+	done
+    else
+	prlog " ... FAIL"
+	rc=1
+    fi
+}
+
 # Parameters
 TEST_STRING_PATTERN="Testing pstore: uuid="
 UUID=`cat /proc/sys/kernel/random/uuid`
 TOP_DIR=`absdir $0`
 LOG_DIR=$TOP_DIR/logs/`date +%Y%m%d-%H%M%S`_${UUID}/
+REBOOT_FLAG=$TOP_DIR/reboot_flag
 
 # Preparing logs
 LOG_FILE=$LOG_DIR/`basename $0`.log

@@ -0,0 +1,30 @@
+#!/bin/sh
+
+# pstore_crash_test - Pstore test shell script which causes crash and reboot
+#
+# Copyright (C) Hitachi Ltd., 2015
+#  Written by Hiraku Toyooka <hiraku.toyooka.gu@hitachi.com>
+#
+# Released under the terms of the GPL v2.
+
+# exit if pstore backend is not registered
+. ./common_tests
+
+prlog "Causing kernel crash ..."
+
+# enable all functions triggered by sysrq
+echo 1 > /proc/sys/kernel/sysrq
+# setting to reboot in 3 seconds after panic
+echo 3 > /proc/sys/kernel/panic
+
+# save uuid file by different name because next test execution will replace it.
+mv $TOP_DIR/uuid $TOP_DIR/prev_uuid
+
+# create a file as reboot flag
+touch $REBOOT_FLAG
+sync
+
+# cause crash
+# Note: If you use kdump and want to see kmesg-* files after reboot, you should
+#       specify 'crash_kexec_post_notifiers' in 1st kernel's cmdline.
+echo c > /proc/sysrq-trigger

@@ -0,0 +1,77 @@
+#!/bin/sh
+
+# pstore_post_reboot_tests - Check pstore's behavior after crash/reboot
+#
+# Copyright (C) Hitachi Ltd., 2015
+#  Written by Hiraku Toyooka <hiraku.toyooka.gu@hitachi.com>
+#
+# Released under the terms of the GPL v2.
+
+. ./common_tests
+
+if [ -e $REBOOT_FLAG  ]; then
+    rm $REBOOT_FLAG
+else
+    prlog "pstore_crash_test has not been executed yet. we skip further tests."
+    exit 0
+fi
+
+prlog -n "Mounting pstore filesystem ... "
+mount_info=`grep pstore /proc/mounts`
+if [ $? -eq 0 ]; then
+    mount_point=`echo ${mount_info} | cut -d' ' -f2 | head -n1`
+    prlog "ok"
+else
+    mount none /sys/fs/pstore -t pstore
+    if [ $? -eq 0 ]; then
+	mount_point=`grep pstore /proc/mounts | cut -d' ' -f2 | head -n1`
+	prlog "ok"
+    else
+	prlog "FAIL"
+	exit 1
+    fi
+fi
+
+cd ${mount_point}
+
+prlog -n "Checking dmesg files exist in pstore filesystem ... "
+check_files_exist dmesg
+
+prlog -n "Checking console files exist in pstore filesystem ... "
+check_files_exist console
+
+prlog -n "Checking pmsg files exist in pstore filesystem ... "
+check_files_exist pmsg
+
+prlog -n "Checking dmesg files contain oops end marker"
+grep_end_trace() {
+    grep -q "\---\[ end trace" $1
+}
+files=`ls dmesg-${backend}-*`
+operate_files $? "$files" grep_end_trace
+
+prlog -n "Checking console file contains oops end marker ... "
+grep -q "\---\[ end trace" console-${backend}-0
+show_result $?
+
+prlog -n "Checking pmsg file properly keeps the content written before crash ... "
+prev_uuid=`cat $TOP_DIR/prev_uuid`
+if [ $? -eq 0 ]; then
+    nr_matched=`grep -c "$TEST_STRING_PATTERN" pmsg-${backend}-0`
+    if [ $nr_matched -eq 1 ]; then
+	grep -q "$TEST_STRING_PATTERN"$prev_uuid pmsg-${backend}-0
+	show_result $?
+    else
+	prlog "FAIL"
+	rc=1
+    fi
+else
+    prlog "FAIL"
+    rc=1
+fi
+
+prlog -n "Removing all files in pstore filesystem "
+files=`ls *-${backend}-*`
+operate_files $? "$files" rm
+
+exit $rc