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>
108 lines
2.4 KiB
Makefile
108 lines
2.4 KiB
Makefile
TARGETS = breakpoints
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TARGETS += cpu-hotplug
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TARGETS += efivarfs
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TARGETS += exec
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TARGETS += firmware
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TARGETS += ftrace
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TARGETS += futex
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TARGETS += kcmp
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TARGETS += membarrier
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TARGETS += memfd
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TARGETS += memory-hotplug
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TARGETS += mount
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TARGETS += mqueue
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TARGETS += net
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TARGETS += powerpc
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TARGETS += pstore
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TARGETS += ptrace
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TARGETS += seccomp
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TARGETS += size
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TARGETS += static_keys
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TARGETS += sysctl
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ifneq (1, $(quicktest))
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TARGETS += timers
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endif
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TARGETS += user
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TARGETS += vm
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TARGETS += x86
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TARGETS += zram
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#Please keep the TARGETS list alphabetically sorted
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# Run "make quicktest=1 run_tests" or
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# "make quicktest=1 kselftest from top level Makefile
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TARGETS_HOTPLUG = cpu-hotplug
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TARGETS_HOTPLUG += memory-hotplug
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# Clear LDFLAGS and MAKEFLAGS if called from main
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# Makefile to avoid test build failures when test
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# Makefile doesn't have explicit build rules.
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ifeq (1,$(MAKELEVEL))
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override LDFLAGS =
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override MAKEFLAGS =
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endif
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all:
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for TARGET in $(TARGETS); do \
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make -C $$TARGET; \
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done;
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run_tests: all
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for TARGET in $(TARGETS); do \
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make -C $$TARGET run_tests; \
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done;
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hotplug:
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for TARGET in $(TARGETS_HOTPLUG); do \
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make -C $$TARGET; \
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done;
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run_hotplug: hotplug
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for TARGET in $(TARGETS_HOTPLUG); do \
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make -C $$TARGET run_full_test; \
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done;
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clean_hotplug:
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for TARGET in $(TARGETS_HOTPLUG); do \
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make -C $$TARGET clean; \
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done;
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run_pstore_crash:
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make -C pstore run_crash
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INSTALL_PATH ?= install
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INSTALL_PATH := $(abspath $(INSTALL_PATH))
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ALL_SCRIPT := $(INSTALL_PATH)/run_kselftest.sh
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install:
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ifdef INSTALL_PATH
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@# Ask all targets to install their files
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mkdir -p $(INSTALL_PATH)
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for TARGET in $(TARGETS); do \
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make -C $$TARGET INSTALL_PATH=$(INSTALL_PATH)/$$TARGET install; \
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done;
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@# Ask all targets to emit their test scripts
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echo "#!/bin/bash" > $(ALL_SCRIPT)
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echo "cd \$$(dirname \$$0)" >> $(ALL_SCRIPT)
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echo "ROOT=\$$PWD" >> $(ALL_SCRIPT)
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for TARGET in $(TARGETS); do \
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echo "echo ; echo Running tests in $$TARGET" >> $(ALL_SCRIPT); \
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echo "echo ========================================" >> $(ALL_SCRIPT); \
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echo "cd $$TARGET" >> $(ALL_SCRIPT); \
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make -s --no-print-directory -C $$TARGET emit_tests >> $(ALL_SCRIPT); \
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echo "cd \$$ROOT" >> $(ALL_SCRIPT); \
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done;
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chmod u+x $(ALL_SCRIPT)
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else
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$(error Error: set INSTALL_PATH to use install)
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endif
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clean:
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for TARGET in $(TARGETS); do \
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make -C $$TARGET clean; \
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done;
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.PHONY: install
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