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authorMichael Ellerman <mpe@ellerman.id.au>2018-03-23 20:44:27 +1100
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>2018-05-30 07:49:10 +0200
commite1448fac677eb3100b5cbdac546457c9c0e3c0e8 (patch)
tree25eaf65f99381885d20e2c65432bfb318c1debe3 /tools
parent0bc0aa273696085092e25d23a130301fff364deb (diff)
selftests: Print the test we're running to /dev/kmsg
[ Upstream commit 88893cf787d3062c631cc20b875068eb11756e03 ] Some tests cause the kernel to print things to the kernel log buffer (ie. printk), in particular oops and warnings etc. However when running all the tests in succession it's not always obvious which test(s) caused the kernel to print something. We can narrow it down by printing which test directory we're running in to /dev/kmsg, if it's writable. Example output: [ 170.149149] kselftest: Running tests in powerpc [ 305.300132] kworker/dying (71) used greatest stack depth: 7776 bytes left [ 808.915456] kselftest: Running tests in pstore Signed-off-by: Michael Ellerman <mpe@ellerman.id.au> Signed-off-by: Shuah Khan <shuahkh@osg.samsung.com> Signed-off-by: Sasha Levin <alexander.levin@microsoft.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'tools')
-rw-r--r--tools/testing/selftests/Makefile1
1 files changed, 1 insertions, 0 deletions
diff --git a/tools/testing/selftests/Makefile b/tools/testing/selftests/Makefile
index 24ebd3e3eb7d..5d2e479430d1 100644
--- a/tools/testing/selftests/Makefile
+++ b/tools/testing/selftests/Makefile
@@ -90,6 +90,7 @@ ifdef INSTALL_PATH
for TARGET in $(TARGETS); do \
echo "echo ; echo Running tests in $$TARGET" >> $(ALL_SCRIPT); \
echo "echo ========================================" >> $(ALL_SCRIPT); \
+ echo "[ -w /dev/kmsg ] && echo \"kselftest: Running tests in $$TARGET\" >> /dev/kmsg" >> $(ALL_SCRIPT); \
echo "cd $$TARGET" >> $(ALL_SCRIPT); \
make -s --no-print-directory -C $$TARGET emit_tests >> $(ALL_SCRIPT); \
echo "cd \$$ROOT" >> $(ALL_SCRIPT); \