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Subject: Re: RFC: KTAP documentation - expected messages
From:   Frank Rowand <frowand.list@gmail.com>
To:     "Bird, Tim" <Tim.Bird@sony.com>,
        "shuah@kernel.org" <shuah@kernel.org>,
        "linux-kselftest@vger.kernel.org" <linux-kselftest@vger.kernel.org>,
        Brendan Higgins <brendanhiggins@google.com>,
        David Gow <davidgow@google.com>,
        Kees Cook <keescook@chromium.org>,
        Paolo Bonzini <pbonzini@redhat.com>
Cc:     "linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>
References: <d38bf9f9-8a39-87a6-8ce7-d37e4a641675@gmail.com>
Message-ID: <e68e3279-b4d7-3920-2583-d937873fcd70@gmail.com>
Date:   Sun, 21 Jun 2020 17:50:59 -0500
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On 2020-06-21 17:45, Frank Rowand wrote:
> Tim Bird started a thread [1] proposing that he document the selftest result
> format used by Linux kernel tests.  
> 
> [1] https://lore.kernel.org/r/CY4PR13MB1175B804E31E502221BC8163FD830@CY4PR13MB1175.namprd13.prod.outlook.com
> 
> The issue of messages generated by the kernel being tested (that are not
> messages directly created by the tests, but are instead triggered as a
> side effect of the test) came up.  In this thread, I will call these
> messages "expected messages".  Instead of sidetracking that thread with
> a proposal to handle expected messages, I am starting this new thread.
> 
> I implemented an API for expected messages that are triggered by tests
> in the Devicetree unittest code, with the expectation that the specific
> details may change when the Devicetree unittest code adapts the KUnit
> API.  It seems appropriate to incorporate the concept of expected
> messages in Tim's documentation instead of waiting to address the
> subject when the Devicetree unittest code adapts the KUnit API, since
> Tim's document may become the kernel selftest standard.
> 
> Instead of creating a very long email containing multiple objects,
> I will reply to this email with a separate reply for each of:
> 
>   The "expected messages" API implemention and use can be from
>   drivers/of/unittest.c in the mainline kernel.
> 
>   of_unittest_expect - A proof of concept perl program to filter console
>                        output containing expected messages output
> 
>                        of_unittest_expect is also available by cloning
>                        https://github.com/frowand/dt_tools.git
> 
>   An example raw console output with timestamps and expect messages.
> 
>   An example of console output processed by filter program
>   of_unittest_expect to be more human readable.  The expected
>   messages are not removed, but are flagged.
> 
>   An example of console output processed by filter program
>   of_unittest_expect to be more human readable.  The expected
>   messages are removed instead of being flagged.
> 

reply 3/5

This is the raw console output for the Devicetree unittest.

Even with lines 1 - 205 deleted, this is pretty noisy and
difficult to read.

This test run shows one of the unittests failing (search for
the string "FAIL") and an associated expected console error
message is missing.


[    2.370062] s4: Bringing 0uV into 500000-500000uV
[    2.374271] s5: supplied by regulator-dummy
[    2.381554] sdhci_msm f98a4900.sdhci: Got CD GPIO
[    2.384149] rtc-pm8xxx fc4cf000.spmi:pm8941@0:rtc@6000: setting system clock to 1970-02-07T19:24:17 UTC (3266657)
[    2.387869] ### dt-test ### start of unittest - you will see error messages
[    2.398101] s6: supplied by regulator-dummy
[    2.399604] ### dt-test ### EXPECT \ : Duplicate name in testcase-data, renamed to "duplicate-name#1"
[    2.399842] Duplicate name in testcase-data, renamed to "duplicate-name#1"
[    2.418543] s7: supplied by regulator-dummy
[    2.422498] ### dt-test ### EXPECT / : Duplicate name in testcase-data, renamed to "duplicate-name#1"
[    2.423561] ### dt-test ### EXPECT \ : OF: /testcase-data/phandle-tests/consumer-a: could not get #phandle-cells-missing for /testcase-data/phandle-tests/provider1
[    2.425369] s8: supplied by regulator-dummy
[    2.429148] OF: /testcase-data/phandle-tests/consumer-a: could not get #phandle-cells-missing for /testcase-data/phandle-tests/provider1
[    2.429156] ### dt-test ### EXPECT / : OF: /testcase-data/phandle-tests/consumer-a: could not get #phandle-cells-missing for /testcase-data/phandle-tests/provider1
[    2.429160] ### dt-test ### EXPECT \ : OF: /testcase-data/phandle-tests/consumer-a: could not get #phandle-cells-missing for /testcase-data/phandle-tests/provider1
[    2.439237] s1: supplied by regulator-dummy
[    2.452933] OF: /testcase-data/phandle-tests/consumer-a: could not get #phandle-cells-missing for /testcase-data/phandle-tests/provider1
[    2.457091] s1: Bringing 0uV into 1300000-1300000uV
[    2.469597] ### dt-test ### EXPECT / : OF: /testcase-data/phandle-tests/consumer-a: could not get #phandle-cells-missing for /testcase-data/phandle-tests/provider1
[    2.469602] ### dt-test ### EXPECT \ : OF: /testcase-data/phandle-tests/consumer-a: could not find phandle
[    2.484573] s2: supplied by regulator-dummy
[    2.498542] OF: /testcase-data/phandle-tests/consumer-a: could not find phandle
[    2.504829] sdhci_msm f98a4900.sdhci: Got CD GPIO
[    2.515126] ### dt-test ### EXPECT / : OF: /testcase-data/phandle-tests/consumer-a: could not find phandle
[    2.515130] ### dt-test ### EXPECT \ : OF: /testcase-data/phandle-tests/consumer-a: could not find phandle
[    2.515189] OF: /testcase-data/phandle-tests/consumer-a: could not find phandle
[    2.520022] s2: Bringing 0uV into 2150000-2150000uV
[    2.534335] ### dt-test ### EXPECT / : OF: /testcase-data/phandle-tests/consumer-a: could not find phandle
[    2.534339] ### dt-test ### EXPECT \ : OF: /testcase-data/phandle-tests/consumer-a: #phandle-cells = 3 found -1
[    2.544887] s3: supplied by regulator-dummy
[    2.548132] OF: /testcase-data/phandle-tests/consumer-a: #phandle-cells = 3 found -1
[    2.555433] s3: Bringing 0uV into 1800000-1800000uV
[    2.560266] ### dt-test ### EXPECT / : OF: /testcase-data/phandle-tests/consumer-a: #phandle-cells = 3 found -1
[    2.560270] ### dt-test ### EXPECT \ : OF: /testcase-data/phandle-tests/consumer-a: #phandle-cells = 3 found -1
[    2.560298] OF: /testcase-data/phandle-tests/consumer-a: #phandle-cells = 3 found -1
[    2.560303] ### dt-test ### EXPECT / : OF: /testcase-data/phandle-tests/consumer-a: #phandle-cells = 3 found -1
[    2.560535] ### dt-test ### EXPECT \ : OF: /testcase-data/phandle-tests/consumer-b: could not get #phandle-missing-cells for /testcase-data/phandle-tests/provider1
[    2.570510] l1: supplied by s1
[    2.579510] OF: /testcase-data/phandle-tests/consumer-b: could not get #phandle-missing-cells for /testcase-data/phandle-tests/provider1
[    2.586682] l1: Bringing 0uV into 1225000-1225000uV
[    2.591521] ### dt-test ### EXPECT / : OF: /testcase-data/phandle-tests/consumer-b: could not get #phandle-missing-cells for /testcase-data/phandle-tests/provider1
[    2.591525] ### dt-test ### EXPECT \ : OF: /testcase-data/phandle-tests/consumer-b: could not find phandle
[    2.591587] OF: /testcase-data/phandle-tests/consumer-b: could not find phandle
[    2.601775] l2: supplied by s3
[    2.611233] ### dt-test ### EXPECT / : OF: /testcase-data/phandle-tests/consumer-b: could not find phandle
[    2.611268] ### dt-test ### EXPECT \ : OF: /testcase-data/phandle-tests/consumer-b: #phandle-cells = 2 found -1
[    2.615419] l2: Bringing 0uV into 1200000-1200000uV
[    2.623396] OF: /testcase-data/phandle-tests/consumer-b: #phandle-cells = 2 found -1
[    2.628271] l3: supplied by s1
[    2.638063] ### dt-test ### EXPECT / : OF: /testcase-data/phandle-tests/consumer-b: #phandle-cells = 2 found -1
[    2.640314] ### dt-test ### EXPECT \ : platform testcase-data:testcase-device2: IRQ index 0 not found
[    2.648179] l3: Bringing 0uV into 1225000-1225000uV
[    2.656092] platform testcase-data:testcase-device2: IRQ index 0 not found
[    2.666227] l4: supplied by s1
[    2.680516] ### dt-test ### EXPECT / : platform testcase-data:testcase-device2: IRQ index 0 not found
[    2.686076] ### dt-test ### EXPECT \ : OF: overlay: WARNING: memory leak will occur if overlay removed, property: /testcase-data/overlay-node/test-bus/test-unittest0/status
[    2.696208] l4: Bringing 0uV into 1225000-1225000uV
[    2.700903] OF: overlay: WARNING: memory leak will occur if overlay removed, property: /testcase-data/overlay-node/test-bus/test-unittest0/status
[    2.834265] l5: supplied by s2
[    2.836015] ### dt-test ### EXPECT / : OF: overlay: WARNING: memory leak will occur if overlay removed, property: /testcase-data/overlay-node/test-bus/test-unittest0/status
[    2.836019] ### dt-test ### EXPECT \ : OF: overlay: WARNING: memory leak will occur if overlay removed, property: /testcase-data/overlay-node/test-bus/test-unittest1/status
[    2.847318] l5: Bringing 0uV into 1800000-1800000uV
[    2.850356] OF: overlay: WARNING: memory leak will occur if overlay removed, property: /testcase-data/overlay-node/test-bus/test-unittest1/status
[    2.886261] l6: supplied by s2
[    2.886399] ### dt-test ### EXPECT / : OF: overlay: WARNING: memory leak will occur if overlay removed, property: /testcase-data/overlay-node/test-bus/test-unittest1/status
[    2.886404] ### dt-test ### EXPECT \ : OF: overlay: WARNING: memory leak will occur if overlay removed, property: /testcase-data/overlay-node/test-bus/test-unittest2/status
[    2.898903] l6: Bringing 0uV into 1800000-1800000uV
[    2.902539] sdhci_msm f98a4900.sdhci: Got CD GPIO
[    2.917894] l7: supplied by s2
[    2.932924] OF: overlay: WARNING: memory leak will occur if overlay removed, property: /testcase-data/overlay-node/test-bus/test-unittest2/status
[    2.937295] l7: Bringing 0uV into 1800000-1800000uV
[    2.942841] ### dt-test ### EXPECT / : OF: overlay: WARNING: memory leak will occur if overlay removed, property: /testcase-data/overlay-node/test-bus/test-unittest2/status
[    2.942846] ### dt-test ### EXPECT \ : OF: overlay: WARNING: memory leak will occur if overlay removed, property: /testcase-data/overlay-node/test-bus/test-unittest3/status
[    2.945614] l8: supplied by regulator-dummy
[    2.958650] OF: overlay: WARNING: memory leak will occur if overlay removed, property: /testcase-data/overlay-node/test-bus/test-unittest3/status
[    2.963000] l8: Bringing 0uV into 1800000-1800000uV
[    2.979086] ### dt-test ### EXPECT / : OF: overlay: WARNING: memory leak will occur if overlay removed, property: /testcase-data/overlay-node/test-bus/test-unittest3/status
[    2.980440] ### dt-test ### EXPECT \ : OF: overlay: WARNING: memory leak will occur if overlay removed, property: /testcase-data/overlay-node/test-bus/test-unittest5/status
[    2.994350] l9: supplied by regulator-dummy
[    2.998308] OF: overlay: WARNING: memory leak will occur if overlay removed, property: /testcase-data/overlay-node/test-bus/test-unittest5/status
[    3.011109] l9: Bringing 0uV into 1800000-1800000uV
[    3.016696] ### dt-test ### EXPECT / : OF: overlay: WARNING: memory leak will occur if overlay removed, property: /testcase-data/overlay-node/test-bus/test-unittest5/status
[    3.016850] ### dt-test ### EXPECT \ : OF: overlay: WARNING: memory leak will occur if overlay removed, property: /testcase-data/overlay-node/test-bus/test-unittest6/status
[    3.031831] l10: supplied by regulator-dummy
[    3.048351] OF: overlay: WARNING: memory leak will occur if overlay removed, property: /testcase-data/overlay-node/test-bus/test-unittest6/status
[    3.050677] l10: Bringing 0uV into 1800000-1800000uV
[    3.064441] ### dt-test ### EXPECT / : OF: overlay: WARNING: memory leak will occur if overlay removed, property: /testcase-data/overlay-node/test-bus/test-unittest6/status
[    3.064446] ### dt-test ### EXPECT \ : OF: overlay: WARNING: memory leak will occur if overlay removed, property: /testcase-data/overlay-node/test-bus/test-unittest7/status
[    3.069011] l11: supplied by s1
[    3.084690] OF: overlay: WARNING: memory leak will occur if overlay removed, property: /testcase-data/overlay-node/test-bus/test-unittest7/status
[    3.099536] l11: Bringing 0uV into 1300000-1300000uV
[    3.104432] sdhci_msm f98a4900.sdhci: Got CD GPIO
[    3.173762] l12: supplied by s2
[    3.174105] ### dt-test ### EXPECT / : OF: overlay: WARNING: memory leak will occur if overlay removed, property: /testcase-data/overlay-node/test-bus/test-unittest7/status
[    3.174972] ### dt-test ### EXPECT \ : OF: overlay: WARNING: memory leak will occur if overlay removed, property: /testcase-data/overlay-node/test-bus/test-unittest8/status
[    3.178158] l12: Bringing 0uV into 1800000-1800000uV
[    3.181186] OF: overlay: WARNING: memory leak will occur if overlay removed, property: /testcase-data/overlay-node/test-bus/test-unittest8/status
[    3.217801] l13: supplied by regulator-dummy
[    3.230269] ### dt-test ### EXPECT / : OF: overlay: WARNING: memory leak will occur if overlay removed, property: /testcase-data/overlay-node/test-bus/test-unittest8/status
[    3.230275] ### dt-test ### EXPECT \ : OF: overlay: WARNING: memory leak will occur if overlay removed, property: /testcase-data/overlay-node/test-bus/test-unittest8/property-foo
[    3.234444] OF: overlay: WARNING: memory leak will occur if overlay removed, property: /testcase-data/overlay-node/test-bus/test-unittest8/property-foo
[    3.235079] sdhci_msm f98a4900.sdhci: Got CD GPIO
[    3.249677] l13: Bringing 0uV into 1800000-1800000uV
[    3.283658] ### dt-test ### EXPECT / : OF: overlay: WARNING: memory leak will occur if overlay removed, property: /testcase-data/overlay-node/test-bus/test-unittest8/property-foo
[    3.283662] ### dt-test ### EXPECT \ : OF: overlay: node_overlaps_later_cs: #6 overlaps with #7 @/testcase-data/overlay-node/test-bus/test-unittest8
[    3.288738] ### dt-test ### EXPECT \ : OF: overlay: overlay #6 is not topmost
[    3.304462] OF: overlay: node_overlaps_later_cs: #6 overlaps with #7 @/testcase-data/overlay-node/test-bus/test-unittest8
[    3.324871] OF: overlay: overlay #6 is not topmost
[    3.335975] ### dt-test ### EXPECT / : OF: overlay: overlay #6 is not topmost
[    3.335978] ### dt-test ### EXPECT / : OF: overlay: node_overlaps_later_cs: #6 overlaps with #7 @/testcase-data/overlay-node/test-bus/test-unittest8
[    3.340707] l14: supplied by s2
[    3.361105] l14: Bringing 0uV into 1800000-1800000uV
[    3.364354] l15: supplied by s2
[    3.367222] ### dt-test ### EXPECT \ : i2c i2c-1: Added multiplexed i2c bus 2
[    3.368029] i2c i2c-1: Added multiplexed i2c bus 2
[    3.369217] l15: Bringing 0uV into 2050000-2050000uV
[    3.372488] ### dt-test ### EXPECT / : i2c i2c-1: Added multiplexed i2c bus 2
[    3.372492] ### dt-test ### EXPECT \ : OF: overlay: WARNING: memory leak will occur if overlay removed, property: /testcase-data/overlay-node/test-bus/i2c-test-bus/test-unittest12/status
[    3.379783] l16: supplied by regulator-dummy
[    3.384807] sdhci_msm f98a4900.sdhci: Got CD GPIO
[    3.389149] l16: Bringing 0uV into 2700000-2700000uV
[    3.396589] OF: overlay: WARNING: memory leak will occur if overlay removed, property: /testcase-data/overlay-node/test-bus/i2c-test-bus/test-unittest12/status
[    3.427778] ### dt-test ### EXPECT / : OF: overlay: WARNING: memory leak will occur if overlay removed, property: /testcase-data/overlay-node/test-bus/i2c-test-bus/test-unittest12/status
[    3.427783] ### dt-test ### EXPECT \ : OF: overlay: WARNING: memory leak will occur if overlay removed, property: /testcase-data/overlay-node/test-bus/i2c-test-bus/test-unittest13/status
[    3.427844] l17: supplied by regulator-dummy
[    3.440871] OF: overlay: WARNING: memory leak will occur if overlay removed, property: /testcase-data/overlay-node/test-bus/i2c-test-bus/test-unittest13/status
[    3.457520] l17: Bringing 0uV into 2700000-2700000uV
[    3.475876] ### dt-test ### EXPECT / : OF: overlay: WARNING: memory leak will occur if overlay removed, property: /testcase-data/overlay-node/test-bus/i2c-test-bus/test-unittest13/status
[    3.475880] ### dt-test ### EXPECT \ : i2c i2c-1: Added multiplexed i2c bus 3
[    3.478783] l18: supplied by regulator-dummy
[    3.497049] i2c i2c-1: Added multiplexed i2c bus 3
[    3.497674] l18: Bringing 0uV into 2850000-2850000uV
[    3.514706] sdhci_msm f98a4900.sdhci: Got CD GPIO
[    3.521586] l19: supplied by regulator-dummy
[    3.525579] ### dt-test ### EXPECT / : i2c i2c-1: Added multiplexed i2c bus 3
[    3.534279] ### dt-test ### EXPECT \ : GPIO line <<int>> (line-B-input) hogged as input
[    3.535218] l19: Bringing 0uV into 3300000-3300000uV
[    3.540558] ### dt-test ### EXPECT \ : GPIO line <<int>> (line-A-input) hogged as input
[    3.544881] l20: supplied by regulator-dummy
[    3.551751] GPIO line 315 (line-B-input) hogged as input
[    3.559114] l20: Bringing 0uV into 2950000-2950000uV
[    3.564560] GPIO line 309 (line-A-input) hogged as input
[    3.572690] l21: supplied by regulator-dummy
[    3.579102] ### dt-test ### EXPECT / : GPIO line <<int>> (line-A-input) hogged as input
[    3.581811] l21: Bringing 0uV into 2950000-2950000uV
[    3.586628] ### dt-test ### EXPECT / : GPIO line <<int>> (line-B-input) hogged as input
[    3.586633] ### dt-test ### EXPECT \ : GPIO line <<int>> (line-D-input) hogged as input
[    3.592642] l22: supplied by regulator-dummy
[    3.600104] GPIO line 307 (line-D-input) hogged as input
[    3.604075] l22: Bringing 0uV into 3000000-3000000uV
[    3.609574] ### dt-test ### EXPECT / : GPIO line <<int>> (line-D-input) hogged as input
[    3.617292] l23: supplied by regulator-dummy
[    3.627709] ### dt-test ### EXPECT \ : GPIO line <<int>> (line-C-input) hogged as input
[    3.629414] l23: Bringing 0uV into 3000000-3000000uV
[    3.635770] ### dt-test ### EXPECT / : GPIO line <<int>> (line-C-input) hogged as input
[    3.640074] l24: supplied by regulator-dummy
[    3.647322] mmc0: SDHCI controller on f9824900.sdhci [f9824900.sdhci] using ADMA
[    3.651912] l24: Bringing 0uV into 3075000-3075000uV
[    3.659592] ### dt-test ### FAIL of_unittest_overlay_gpio():2664 unittest_gpio_chip_request() called 0 times (expected 1 time)
[    3.665255] lvs1: supplied by s3
[    3.682927] ### dt-test ### EXPECT \ : OF: overlay: WARNING: memory leak will occur if overlay removed, property: /testcase-data-2/substation@100/status
[    3.682931] ### dt-test ### EXPECT \ : OF: overlay: WARNING: memory leak will occur if overlay removed, property: /testcase-data-2/fairway-1/status
[    3.684820] lvs2: supplied by s3
[    3.690133] sdhci_msm f98a4900.sdhci: Got CD GPIO
[    3.700948] lvs3: supplied by s3
[    3.704316] ### dt-test ### EXPECT \ : OF: overlay: WARNING: memory leak will occur if overlay removed, property: /testcase-data-2/fairway-1/ride@100/track@30/incline-up
[    3.704321] ### dt-test ### EXPECT \ : OF: overlay: WARNING: memory leak will occur if overlay removed, property: /testcase-data-2/fairway-1/ride@100/track@40/incline-up
[    3.718126] 5vs1: supplied by s4
[    3.731723] ### dt-test ### EXPECT \ : OF: overlay: WARNING: memory leak will occur if overlay removed, property: /testcase-data-2/lights@40000/status
[    3.731727] ### dt-test ### EXPECT \ : OF: overlay: WARNING: memory leak will occur if overlay removed, property: /testcase-data-2/lights@40000/color
[    3.734472] 5vs2: supplied by s4
[    3.738656] ### dt-test ### EXPECT \ : OF: overlay: WARNING: memory leak will occur if overlay removed, property: /testcase-data-2/lights@40000/rate
[    3.738660] ### dt-test ### EXPECT \ : OF: overlay: WARNING: memory leak will occur if overlay removed, property: /__symbols__/hvac_2
[    3.805410] ### dt-test ### EXPECT \ : OF: overlay: WARNING: memory leak will occur if overlay removed, property: /__symbols__/ride_200
[    3.818689] ### dt-test ### EXPECT \ : OF: overlay: WARNING: memory leak will occur if overlay removed, property: /__symbols__/ride_200_left
[    3.830515] ### dt-test ### EXPECT \ : OF: overlay: WARNING: memory leak will occur if overlay removed, property: /__symbols__/ride_200_right
[    3.843341] OF: overlay: WARNING: memory leak will occur if overlay removed, property: /testcase-data-2/substation@100/status
[    3.860744] mmc1: SDHCI controller on f98a4900.sdhci [f98a4900.sdhci] using ADMA
[    3.868094] OF: overlay: WARNING: memory leak will occur if overlay removed, property: /testcase-data-2/fairway-1/status
[    3.886817] OF: overlay: WARNING: memory leak will occur if overlay removed, property: /testcase-data-2/fairway-1/ride@100/track@30/incline-up
[    3.897848] OF: overlay: WARNING: memory leak will occur if overlay removed, property: /testcase-data-2/fairway-1/ride@100/track@40/incline-up
[    3.910448] OF: overlay: WARNING: memory leak will occur if overlay removed, property: /testcase-data-2/lights@40000/status
[    3.923033] OF: overlay: WARNING: memory leak will occur if overlay removed, property: /testcase-data-2/lights@40000/color
[    3.934061] OF: overlay: WARNING: memory leak will occur if overlay removed, property: /testcase-data-2/lights@40000/rate
[    3.945320] OF: overlay: WARNING: memory leak will occur if overlay removed, property: /__symbols__/hvac_2
[    3.956218] OF: overlay: WARNING: memory leak will occur if overlay removed, property: /__symbols__/ride_200
[    3.965748] OF: overlay: WARNING: memory leak will occur if overlay removed, property: /__symbols__/ride_200_left
[    3.975753] OF: overlay: WARNING: memory leak will occur if overlay removed, property: /__symbols__/ride_200_right
[    3.991170] ### dt-test ### EXPECT / : OF: overlay: WARNING: memory leak will occur if overlay removed, property: /__symbols__/ride_200_right
[    3.991174] ### dt-test ### EXPECT / : OF: overlay: WARNING: memory leak will occur if overlay removed, property: /__symbols__/ride_200_left
[    3.996032] ### dt-test ### EXPECT / : OF: overlay: WARNING: memory leak will occur if overlay removed, property: /__symbols__/ride_200
[    4.008806] ### dt-test ### EXPECT / : OF: overlay: WARNING: memory leak will occur if overlay removed, property: /__symbols__/hvac_2
[    4.009664] msm_hsusb f9a55000.usb: failed to create device link to ci_hdrc.0.ulpi
[    4.021413] ### dt-test ### EXPECT / : OF: overlay: WARNING: memory leak will occur if overlay removed, property: /testcase-data-2/lights@40000/rate
[    4.021416] ### dt-test ### EXPECT / : OF: overlay: WARNING: memory leak will occur if overlay removed, property: /testcase-data-2/lights@40000/color
[    4.052920] ### dt-test ### EXPECT / : OF: overlay: WARNING: memory leak will occur if overlay removed, property: /testcase-data-2/lights@40000/status
[    4.066380] ### dt-test ### EXPECT / : OF: overlay: WARNING: memory leak will occur if overlay removed, property: /testcase-data-2/fairway-1/ride@100/track@40/incline-up
[    4.079700] ### dt-test ### EXPECT / : OF: overlay: WARNING: memory leak will occur if overlay removed, property: /testcase-data-2/fairway-1/ride@100/track@30/incline-up
[    4.093071] ### dt-test ### EXPECT / : OF: overlay: WARNING: memory leak will occur if overlay removed, property: /testcase-data-2/fairway-1/status
[    4.108241] ### dt-test ### EXPECT / : OF: overlay: WARNING: memory leak will occur if overlay removed, property: /testcase-data-2/substation@100/status
[    4.123325] ### dt-test ### EXPECT \ : OF: overlay: ERROR: multiple fragments add and/or delete node /testcase-data-2/substation@100/motor-1/controller
[    4.136370] ### dt-test ### EXPECT \ : OF: overlay: ERROR: multiple fragments add, update, and/or delete property /testcase-data-2/substation@100/motor-1/controller/name
[    4.150628] OF: overlay: ERROR: multiple fragments add and/or delete node /testcase-data-2/substation@100/motor-1/controller
[    4.179147] OF: overlay: ERROR: multiple fragments add, update, and/or delete property /testcase-data-2/substation@100/motor-1/controller/name
[    4.190137] ### dt-test ### EXPECT / : OF: overlay: ERROR: multiple fragments add, update, and/or delete property /testcase-data-2/substation@100/motor-1/controller/name
[    4.190145] ### dt-test ### EXPECT / : OF: overlay: ERROR: multiple fragments add and/or delete node /testcase-data-2/substation@100/motor-1/controller
[    4.202662] ### dt-test ### EXPECT \ : OF: overlay: WARNING: memory leak will occur if overlay removed, property: /testcase-data-2/substation@100/motor-1/rpm_avail
[    4.217880] ### dt-test ### EXPECT \ : OF: overlay: WARNING: memory leak will occur if overlay removed, property: /testcase-data-2/substation@100/motor-1/rpm_avail
[    4.231256] ### dt-test ### EXPECT \ : OF: overlay: ERROR: multiple fragments add, update, and/or delete property /testcase-data-2/substation@100/motor-1/rpm_avail
[    4.231507] mmc1: new ultra high speed DDR50 SDHC card at address aaaa
[    4.246031] OF: overlay: WARNING: memory leak will occur if overlay removed, property: /testcase-data-2/substation@100/motor-1/rpm_avail
[    4.271061] mmcblk1: mmc1:aaaa SU16G 14.8 GiB 
[    4.275021] OF: overlay: WARNING: memory leak will occur if overlay removed, property: /testcase-data-2/substation@100/motor-1/rpm_avail
[    4.298499] OF: overlay: ERROR: multiple fragments add, update, and/or delete property /testcase-data-2/substation@100/motor-1/rpm_avail
[    4.298507]  mmcblk1: p1
[    4.310625] ### dt-test ### EXPECT / : OF: overlay: ERROR: multiple fragments add, update, and/or delete property /testcase-data-2/substation@100/motor-1/rpm_avail
[    4.310629] ### dt-test ### EXPECT / : OF: overlay: WARNING: memory leak will occur if overlay removed, property: /testcase-data-2/substation@100/motor-1/rpm_avail
[    4.325399] ### dt-test ### EXPECT / : OF: overlay: WARNING: memory leak will occur if overlay removed, property: /testcase-data-2/substation@100/motor-1/rpm_avail
[    4.340232] ### dt-test ### end of unittest - 258 passed, 1 failed
[    4.369695] ALSA device list:
[    4.375127]   No soundc�[    4.382470] Freeing unused kernel memory: 1024K
[    4.392204] mmcblk0: mmc0:0001 SEM16G 14.7 GiB 
[    4.392431] mmcblk0boot0: mmc0:0001 SEM16G partition 1 4.00 MiB
[    4.395717] mmcblk0boot1: mmc0:0001 SEM16G partition 2 4.00 MiB
[    4.401692] mmcblk0rpmb: mmc0:0001 SEM16G partition 3 4.00 MiB, chardev (247:0)
[    4.407818] Run /init as init process
[    4.416285]  mmcblk0: p1 p2 p3 p4 p5 p6 p7 p8 p9 p10 p11 p12 p13 p14 p15 p16 p17 p18 p19 p20
mkdir: can't create directory '/bin': File exists
mkdir: can't create directory '/dev': File exists
/init: line 25: can't create /proc/sys/kernel/hotplug: nonexistent directory
mdev: unknown user/group 'root:uucp' on line 34
Attempt to mount partitions: /usr/system /usr/data
Mounting partitions from: /dev/mmcblk0
[    4.912251] EXT4-fs (mmcblk0p12): mounted filesystem with ordered data mode. Opts: (null)
[    4.932285] EXT4-fs (mmcblk0p13): recovery complete
[    4.932321] EXT4-fs (mmcblk0p13): mounted filesystem with ordered data mode. Opts: (null)
/ # [    5.288283] random: fast init done

/ # cat /proc/version
Linux version 5.6.0-rc1-00002-g6be01ed870a2-dirty (frowand@xps8900) (gcc version 4.6.x-google 20120106 (prerelease) (GCC)) #4 SMP PREEMPT Wed Feb 19 18:23:24 CST 2020
/ #