pstore_crash_test

 1#!/bin/sh
 2# SPDX-License-Identifier: GPL-2.0-only
 3
 4# pstore_crash_test - Pstore test shell script which causes crash and reboot
 5#
 6# Copyright (C) Hitachi Ltd., 2015
 7#  Written by Hiraku Toyooka <hiraku.toyooka.gu@hitachi.com>
 8#
 9
10# exit if pstore backend is not registered
11. ./common_tests
12
13prlog "Causing kernel crash ..."
14
15# enable all functions triggered by sysrq
16echo 1 > /proc/sys/kernel/sysrq
17# setting to reboot in 3 seconds after panic
18echo 3 > /proc/sys/kernel/panic
19
20# save uuid file by different name because next test execution will replace it.
21mv $TOP_DIR/uuid $TOP_DIR/prev_uuid
22
23# create a file as reboot flag
24touch $REBOOT_FLAG
25sync
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.
30echo c > /proc/sysrq-trigger