tools/testing/selftests/pstore/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
  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