Re: [PATCHv3] selftests/timers: Turn off timeout setting

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On 8/4/20 3:38 PM, John Stultz wrote:
On Tue, Mar 17, 2020 at 7:42 PM Po-Hsu Lin <po-hsu.lin@xxxxxxxxxxxxx> wrote:

The following 4 tests in timers can take longer than the default 45
seconds that added in commit 852c8cbf34d3 ("selftests/kselftest/runner.sh:
Add 45 second timeout per test") to run:
   * nsleep-lat - 2m7.350s
   * set-timer-lat - 2m0.66s
   * inconsistency-check - 1m45.074s
   * raw_skew - 2m0.013s

Thus they will be marked as failed with the current 45s setting:
   not ok 3 selftests: timers: nsleep-lat # TIMEOUT
   not ok 4 selftests: timers: set-timer-lat # TIMEOUT
   not ok 6 selftests: timers: inconsistency-check # TIMEOUT
   not ok 7 selftests: timers: raw_skew # TIMEOUT

Disable the timeout setting for timers can make these tests finish
properly:
   ok 3 selftests: timers: nsleep-lat
   ok 4 selftests: timers: set-timer-lat
   ok 6 selftests: timers: inconsistency-check
   ok 7 selftests: timers: raw_skew

https://bugs.launchpad.net/bugs/1864626
Fixes: 852c8cbf34d3 ("selftests/kselftest/runner.sh: Add 45 second timeout per test")
Signed-off-by: Po-Hsu Lin <po-hsu.lin@xxxxxxxxxxxxx>
---
  tools/testing/selftests/timers/Makefile | 1 +
  tools/testing/selftests/timers/settings | 1 +
  2 files changed, 2 insertions(+)
  create mode 100644 tools/testing/selftests/timers/settings

diff --git a/tools/testing/selftests/timers/Makefile b/tools/testing/selftests/timers/Makefile
index 7656c7c..0e73a16 100644
--- a/tools/testing/selftests/timers/Makefile
+++ b/tools/testing/selftests/timers/Makefile
@@ -13,6 +13,7 @@ DESTRUCTIVE_TESTS = alarmtimer-suspend valid-adjtimex adjtick change_skew \

  TEST_GEN_PROGS_EXTENDED = $(DESTRUCTIVE_TESTS)

+TEST_FILES := settings

  include ../lib.mk

diff --git a/tools/testing/selftests/timers/settings b/tools/testing/selftests/timers/settings
new file mode 100644
index 0000000..e7b9417
--- /dev/null
+++ b/tools/testing/selftests/timers/settings
@@ -0,0 +1 @@
+timeout=0
--

Apologies for missing this before.  I've not tested with this, but it
sounds sane to me. A number of the timekeeping tests do take a while
to run.

Acked-by: John Stultz <john.stultz@xxxxxxxxxx>


Thanks. I will get this in for 5.9-rc2 fixes update.

thanks,
-- Shuah




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