selftests/powerpc/eeh: disable kselftest timeout setting for eeh-basic

The eeh-basic test got its own 60 seconds timeout (defined in commit
414f50434aa2 "selftests/eeh: Bump EEH wait time to 60s") per breakable
device.

And we have discovered that the number of breakable devices varies
on different hardware. The device recovery time ranges from 0 to 35
seconds. In our test pool it will take about 30 seconds to run on a
Power8 system that with 5 breakable devices, 60 seconds to run on a
Power9 system that with 4 breakable devices.

Thus it's better to disable the default 45 seconds timeout setting in
the kselftest framework to give it a chance to finish. And let the
test to take care of the timeout control.

Signed-off-by: Po-Hsu Lin <redacted>
---
 tools/testing/selftests/powerpc/eeh/Makefile | 2 +-
 tools/testing/selftests/powerpc/eeh/settings | 1 +
 2 files changed, 2 insertions(+), 1 deletion(-)
 create mode 100644 tools/testing/selftests/powerpc/eeh/settings

diff --git a/tools/testing/selftests/powerpc/eeh/Makefile b/tools/testing/selftests/powerpc/eeh/Makefile
index b397bab..ae963eb 100644
--- a/tools/testing/selftests/powerpc/eeh/Makefile
+++ b/tools/testing/selftests/powerpc/eeh/Makefile

@@ -3,7 +3,7 @@ noarg:
 	$(MAKE) -C ../
 
 TEST_PROGS := eeh-basic.sh
-TEST_FILES := eeh-functions.sh
+TEST_FILES := eeh-functions.sh settings
 
 top_srcdir = ../../../../..
 include ../../lib.mk

diff --git a/tools/testing/selftests/powerpc/eeh/settings b/tools/testing/selftests/powerpc/eeh/settings
new file mode 100644
index 0000000..e7b9417
--- /dev/null
+++ b/tools/testing/selftests/powerpc/eeh/settings

@@ -0,0 +1 @@
+timeout=0

-- 
2.7.4

Po-Hsu Lin [off-list ref] writes:

The eeh-basic test got its own 60 seconds timeout (defined in commit
414f50434aa2 "selftests/eeh: Bump EEH wait time to 60s") per breakable
device.

And we have discovered that the number of breakable devices varies
on different hardware. The device recovery time ranges from 0 to 35
seconds. In our test pool it will take about 30 seconds to run on a
Power8 system that with 5 breakable devices, 60 seconds to run on a
Power9 system that with 4 breakable devices.

Thus it's better to disable the default 45 seconds timeout setting in
the kselftest framework to give it a chance to finish. And let the
test to take care of the timeout control.

I'd prefer if we still had some timeout, maybe 5 or 10 minutes? Just in
case the test goes completely bonkers.

cheers

On Fri, Oct 23, 2020 at 10:07 AM Michael Ellerman [off-list ref] wrote:

Po-Hsu Lin [off-list ref] writes:

quoted

The eeh-basic test got its own 60 seconds timeout (defined in commit
414f50434aa2 "selftests/eeh: Bump EEH wait time to 60s") per breakable
device.

And we have discovered that the number of breakable devices varies
on different hardware. The device recovery time ranges from 0 to 35
seconds. In our test pool it will take about 30 seconds to run on a
Power8 system that with 5 breakable devices, 60 seconds to run on a
Power9 system that with 4 breakable devices.

Thus it's better to disable the default 45 seconds timeout setting in
the kselftest framework to give it a chance to finish. And let the
test to take care of the timeout control.

I'd prefer if we still had some timeout, maybe 5 or 10 minutes? Just in
case the test goes completely bonkers.

OK, let's go for 5 minutes.
Will send V2 later.
Thanks for your suggestion!

cheers

quoted

diff --git a/tools/testing/selftests/powerpc/eeh/Makefile b/tools/testing/selftests/powerpc/eeh/Makefile
index b397bab..ae963eb 100644
--- a/tools/testing/selftests/powerpc/eeh/Makefile
+++ b/tools/testing/selftests/powerpc/eeh/Makefile

@@ -3,7 +3,7 @@ noarg:
      $(MAKE) -C ../

 TEST_PROGS := eeh-basic.sh
-TEST_FILES := eeh-functions.sh
+TEST_FILES := eeh-functions.sh settings

 top_srcdir = ../../../../..
 include ../../lib.mk

diff --git a/tools/testing/selftests/powerpc/eeh/settings b/tools/testing/selftests/powerpc/eeh/settings
new file mode 100644
index 0000000..e7b9417
--- /dev/null
+++ b/tools/testing/selftests/powerpc/eeh/settings

@@ -0,0 +1 @@
+timeout=0
--

2.7.4