selftests/pstore: add pstore test script for pre-reboot (cc04a46f) · Commits · 戴 / test

The pstore_tests script includes test cases which check pstore's behavior before crash (and reboot). The test cases are currently following. - Check pstore backend is registered - Check pstore console is registered - Check /dev/pmsg0 exists - Write unique string to /dev/pmsg0 The unique string written to /dev/pmsg includes UUID. The UUID is also left in 'uuid' file in order to enable us to check if the pmsg keeps the string correctly after reboot. Example usage is following. # cd /path/to/selftests # make run_tests -C pstore (or just .pstore/pstore_tests) make: Entering directory '/path/to/selftests/pstore' === Pstore unit tests (pstore_tests) === UUID=b49b02cf-b0c2-4309-be43-b08c3971e37f Checking pstore backend is registered ... ok backend=ramoops cmdline=console=ttyS0,115200 root=/dev/mmcblk0p2 rw rootwait mem=768M ramoops.mem_address=0x30000000 ramoops.mem_size=0x10000 Checking pstore console is registered ... ok Checking /dev/pmsg0 exists ... ok Writing unique string to /dev/pmsg0 ... ok selftests: pstore_tests [PASS] make: Leaving directory '/path/to/selftests/pstore' We can also see test logs later. # cat pstore/logs/20151001-072718_b49b02cf-b0c2-4309-be43-b08c3971e37f/pstore_tests.log Thu Oct 1 07:27:18 UTC 2015 === Pstore unit tests (pstore_tests) === UUID=b49b02cf-b0c2-4309-be43-b08c3971e37f Checking pstore backend is registered ... ok backend=ramoops cmdline=console=ttyS0,115200 root=/dev/mmcblk0p2 rw rootwait mem=768M ramoops.mem_address=0x30000000 ramoops.mem_size=0x10000 Checking pstore console is registered ... ok Checking /dev/pmsg0 exists ... ok Writing unique string to /dev/pmsg0 ... ok Signed-off-by:

Hiraku Toyooka <hiraku.toyooka.gu@hitachi.com> Cc: Shuah Khan <shuahkh@osg.samsung.com> Cc: Tony Luck <tony.luck@intel.com> Cc: Anton Vorontsov <anton@enomsg.org> Cc: Colin Cross <ccross@android.com> Cc: Kees Cook <keescook@chromium.org> Cc: Mark Salyzyn <salyzyn@android.com> Cc: Seiji Aguchi <seiji.aguchi.tr@hitachi.com> Cc: linux-kernel@vger.kernel.org Cc: linux-api@vger.kernel.org Signed-off-by:

Shuah Khan <shuahkh@osg.samsung.com>

tools/testing/selftests/Makefile

+1 −0

Original line number	Diff line number	Diff line
		@@ -13,6 +13,7 @@ TARGETS += mount
		TARGETS += mqueue
		TARGETS += net
		TARGETS += powerpc
		TARGETS += pstore
		TARGETS += ptrace
		TARGETS += seccomp
		TARGETS += size

tools/testing/selftests/pstore/Makefile

0 → 100644

+12 −0

Original line number	Diff line number	Diff line
		# Makefile for pstore selftests.
		# Expects pstore backend is registered.

		all:

		TEST_PROGS := pstore_tests
		TEST_FILES := common_tests

		include ../lib.mk

		clean:
		rm -rf logs/* *uuid

tools/testing/selftests/pstore/common_tests

0 → 100755

+55 −0

Original line number	Diff line number	Diff line
		#!/bin/sh

		# common_tests - Shell script commonly used by pstore test scripts
		#
		# Copyright (C) Hitachi Ltd., 2015
		# Written by Hiraku Toyooka <hiraku.toyooka.gu@hitachi.com>
		#
		# Released under the terms of the GPL v2.

		# Utilities
		errexit() { # message
		echo "Error: $1" 1>&2
		exit 1
		}

		absdir() { # file_path
		(cd `dirname $1`; pwd)
		}

		show_result() { # result_value
		if [ $1 -eq 0 ]; then
		prlog "ok"
		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}/

		# Preparing logs
		LOG_FILE=$LOG_DIR/`basename $0`.log
		mkdir -p $LOG_DIR \|\| errexit "Failed to make a log directory: $LOG_DIR"
		date > $LOG_FILE
		prlog() { # messages
		/bin/echo "$@" \| tee -a $LOG_FILE
		}

		# Starting tests
		rc=0
		prlog "=== Pstore unit tests (`basename $0`) ==="
		prlog "UUID="$UUID

		prlog -n "Checking pstore backend is registered ... "
		backend=`cat /sys/module/pstore/parameters/backend`
		show_result $?
		prlog -e "\tbackend=${backend}"
		prlog -e "\tcmdline=`cat /proc/cmdline`"
		if [ $rc -ne 0 ]; then
		exit 1
		fi

tools/testing/selftests/pstore/pstore_tests

0 → 100755

+30 −0

Original line number	Diff line number	Diff line
		#!/bin/sh

		# pstore_tests - Check pstore's behavior before 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

		prlog -n "Checking pstore console is registered ... "
		dmesg \| grep -q "console \[pstore"
		show_result $?

		prlog -n "Checking /dev/pmsg0 exists ... "
		test -e /dev/pmsg0
		show_result $?

		prlog -n "Writing unique string to /dev/pmsg0 ... "
		if [ -e "/dev/pmsg0" ]; then
		echo "${TEST_STRING_PATTERN}""$UUID" > /dev/pmsg0
		show_result $?
		echo "$UUID" > $TOP_DIR/uuid
		else
		prlog "FAIL"
		rc=1
		fi

		exit $rc

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