[mirror_ubuntu-bionic-kernel.git] / tools / testing / selftests / pstore / pstore_crash_test

#!/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
Commit	Line	Data
f615e2bb HT	1	#!/bin/sh
	2
	3	# pstore_crash_test - Pstore test shell script which causes crash and reboot
	4	#
	5	# Copyright (C) Hitachi Ltd., 2015
	6	# Written by Hiraku Toyooka <hiraku.toyooka.gu@hitachi.com>
	7	#
	8	# Released under the terms of the GPL v2.
	9
	10	# exit if pstore backend is not registered
	11	. ./common_tests
	12
	13	prlog "Causing kernel crash ..."
	14
	15	# enable all functions triggered by sysrq
	16	echo 1 > /proc/sys/kernel/sysrq
	17	# setting to reboot in 3 seconds after panic
	18	echo 3 > /proc/sys/kernel/panic
	19
	20	# save uuid file by different name because next test execution will replace it.
	21	mv $TOP_DIR/uuid $TOP_DIR/prev_uuid
	22
	23	# create a file as reboot flag
	24	touch $REBOOT_FLAG
	25	sync
	26
	27	# cause crash
	28	# Note: If you use kdump and want to see kmesg-* files after reboot, you should
	29	# specify 'crash_kexec_post_notifiers' in 1st kernel's cmdline.
	30	echo c > /proc/sysrq-trigger