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f615e2bb13
To test pstore in earnest, we have to cause kernel crash and check
pstore filesystem after reboot.
We add two scripts:
- pstore_crash_test
This script causes kernel crash and reboot. It is executed by
'make run_pstore_crash' in selftests. It can also be used with kdump.
- pstore_post_reboot_tests
This script includes test cases which check pstore's behavior after
crash and reboot. It is executed together with pstore_tests by
'make run_tests [-C pstore]' in selftests.
The test cases in pstore_post_reboot_tests are currently following.
- Check pstore backend is registered
- Mount pstore filesystem
- Check dmesg/console/pmsg files exist in pstore filesystem
- Check dmesg/console files contain oops end marker
- Check pmsg file properly keeps the content written before crash
- Remove all files in pstore filesystem
Example usage is following.
(before reboot)
# cd /path/to/selftests
# make run_tests -C pstore
=== Pstore unit tests (pstore_tests) ===
UUID=b49b02cf-b0c2-4309-be43-b08c3971e37f
...
selftests: pstore_tests [PASS]
=== Pstore unit tests (pstore_post_reboot_tests) ===
UUID=953eb1bc-8e03-48d7-b27a-6552b24c5b7e
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
pstore_crash_test has not been executed yet. we skip further tests.
selftests: pstore_post_reboot_tests [PASS]
# make run_pstore_crash
=== Pstore unit tests (pstore_crash_test) ===
UUID=93c8972d-1466-430b-8c4a-28d8681e74c6
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
Causing kernel crash ...
(kernel crash and reboot)
...
(after reboot)
# make run_tests -C pstore
=== Pstore unit tests (pstore_tests) ===
UUID=8e511e77-2285-499f-8bc0-900d9af1fbcc
...
selftests: pstore_tests [PASS]
=== Pstore unit tests (pstore_post_reboot_tests) ===
UUID=2dcc2132-4f3c-45aa-a38f-3b54bff8cef1
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
Mounting pstore filesystem ... ok
Checking dmesg files exist in pstore filesystem ... ok
dmesg-ramoops-0
dmesg-ramoops-1
Checking console files exist in pstore filesystem ... ok
console-ramoops-0
Checking pmsg files exist in pstore filesystem ... ok
pmsg-ramoops-0
Checking dmesg files contain oops end marker
dmesg-ramoops-0 ... ok
dmesg-ramoops-1 ... ok
Checking console file contains oops end marker ... ok
Checking pmsg file properly keeps the content written before crash ... ok
Removing all files in pstore filesystem
console-ramoops-0 ... ok
dmesg-ramoops-0 ... ok
dmesg-ramoops-1 ... ok
pmsg-ramoops-0 ... ok
selftests: pstore_post_reboot_tests [PASS]
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>
83 lines
1.6 KiB
Bash
Executable file
83 lines
1.6 KiB
Bash
Executable file
#!/bin/sh
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# common_tests - Shell script commonly used by pstore test scripts
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#
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# Copyright (C) Hitachi Ltd., 2015
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# Written by Hiraku Toyooka <hiraku.toyooka.gu@hitachi.com>
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#
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# Released under the terms of the GPL v2.
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# Utilities
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errexit() { # message
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echo "Error: $1" 1>&2
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exit 1
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}
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absdir() { # file_path
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(cd `dirname $1`; pwd)
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}
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show_result() { # result_value
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if [ $1 -eq 0 ]; then
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prlog "ok"
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else
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prlog "FAIL"
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rc=1
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fi
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}
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check_files_exist() { # type of pstorefs file
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if [ -e ${1}-${backend}-0 ]; then
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prlog "ok"
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for f in `ls ${1}-${backend}-*`; do
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prlog -e "\t${f}"
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done
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else
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prlog "FAIL"
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rc=1
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fi
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}
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operate_files() { # tested value, files, operation
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if [ $1 -eq 0 ]; then
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prlog
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for f in $2; do
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prlog -ne "\t${f} ... "
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# execute operation
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$3 $f
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show_result $?
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done
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else
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prlog " ... FAIL"
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rc=1
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fi
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}
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# Parameters
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TEST_STRING_PATTERN="Testing pstore: uuid="
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UUID=`cat /proc/sys/kernel/random/uuid`
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TOP_DIR=`absdir $0`
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LOG_DIR=$TOP_DIR/logs/`date +%Y%m%d-%H%M%S`_${UUID}/
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REBOOT_FLAG=$TOP_DIR/reboot_flag
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# Preparing logs
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LOG_FILE=$LOG_DIR/`basename $0`.log
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mkdir -p $LOG_DIR || errexit "Failed to make a log directory: $LOG_DIR"
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date > $LOG_FILE
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prlog() { # messages
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/bin/echo "$@" | tee -a $LOG_FILE
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}
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# Starting tests
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rc=0
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prlog "=== Pstore unit tests (`basename $0`) ==="
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prlog "UUID="$UUID
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prlog -n "Checking pstore backend is registered ... "
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backend=`cat /sys/module/pstore/parameters/backend`
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show_result $?
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prlog -e "\tbackend=${backend}"
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prlog -e "\tcmdline=`cat /proc/cmdline`"
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if [ $rc -ne 0 ]; then
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exit 1
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fi
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