Archive for the ‘Uncategorized’ Category

Linaro runs a battery of tests on the Open Embedded and Android operating systems using a variety of hardware and kernel versions in order to detect kernel regressions. These regressions are reported to member companies and the various upstream communities like linux-stable.

This report is a summary of our activity this week.

Due to some breakage that was witnessed, there was a desire this month to add KVM into the kernel testing mix. KV-165 Investigate adding KVM testing to LKFT

Testing on Open Embedded

  • KV-126 Final testing for upgrade to sumo happening in staging. Looking to upgrade this week.
  • Db410c boot issue showed up, investigating.
  • Bug Status – 62 open bugs
    • 2019-03-06: bpf_test_tcpbpf_user confirmed fixed on mainline thanks to Anders’ patch re: bug 3938
    • 2019-03-05: Bug 4305 – LTP: Juno: 64K page: causing Unable to handle kernel NULL pointer dereference reported to ARM and LDCG
    • 2019-03-04: Anders Roxell reported a use after free with KASAN in next
    • 2019-03-01: Naresh Kamboju reported a kernel warning triggered by bpf test_sock
  • RC Log
    • 2019-03-04
      • 4.9.162, 4.14.105, 4.19.27, 4.20.14
        • Reported no regressions in <24h

Testing on Android

    • Discussion
      • Pixel 3 is starting to boot : https://pastebin.linaro.org/view/bbdf82eb
      • DB845 is following along as well
      • Working with John/YongQin and hikey-linaro kernel branches that then get used by LKFT. Part of what we’ve been bit by in failures is due to changes in Android Common due to post P.
    • Android 9 / P LTS-premerge – 4.4, 4.9, 4.14, 4.19
      • 4.19.26 / HiKey – no regressions
      • 4.14.104 / HiKey –
        • cts-lkft/arm64-v8a.CtsOsTestCases/android.os.cts.StrictModeTest.testNetwork
        • cts-lkft/arm64-v8a.CtsOsTestCases/android.os.cts.StrictModeTest.testUntaggedSocketsHttp
        • cts-lkft/arm64-v8a.CtsOsTestCases/android.os.cts.StrictModeTest.testUntaggedSocketsRaw
        • cts-lkft/armeabi-v7a.CtsOsTestCases/android.os.cts.StrictModeTest.testNetwork
        • cts-lkft/armeabi-v7a.CtsOsTestCases/android.os.cts.StrictModeTest.testUntaggedSocketsHttp
        • cts-lkft/armeabi-v7a.CtsOsTestCases/android.os.cts.StrictModeTest.testUntaggedSocketsRaw
        • cts-lkft/armeabi-v7a.CtsWebkitTestCases/android.webkit.cts.WebViewSslTest.testProceedClientCertRequestKeyWithAndroidKeystoreKey
      • 4.9.161 / HiKey
      • 4.4.176 / HiKey
        • No regressions
        • cts-lkft/arm64-v8a.CtsUsbTests /com.android.cts.usb.TestUsbTest.testUsbSerialReadOnDeviceMatches
          • Seen before but I believe this test is interesting in the context of adb disconnect issues
    • Android 9 / P –  4.4, 4.9, 4.14, 4.19 + HiKey
      • 4.19.23 / HiKey – no new data
      • 4.14.101 / HiKey – no new data
      • 4.9.158 / HiKey – no new data
      • 4.4.174 / HiKey – no new data
    • AOSP-master-tracking –  4.9, 4.14 4.19 / HiKey & 4.14 / X15
      • hi6220-hikey_4.19.23:
      •  cts-lkft-arm64-v8a/arm64-v8a.CtsBluetoothTestCases:
        • android.bluetooth.cts.HearingAidProfileTest.test_getConnectedDevices
        • android.bluetooth.cts.HearingAidProfileTest.test_getDevicesMatchingConnectionStates
      • hi6220-hikey_4.14.101:
      •  cts-lkft-arm64-v8a/arm64-v8a.CtsBluetoothTestCases:
        • android.bluetooth.cts.HearingAidProfileTest.test_getDevicesMatchingConnectionStates
      •  cts-lkft-armeabi-v7a/armeabi-v7a.CtsBluetoothTestCases:
        • android.bluetooth.cts.HearingAidProfileTest.test_getConnectedDevices
        • android.bluetooth.cts.HearingAidProfileTest.test_getConnectionStateChangedIntent
      •  cts-lkft-arm64-v8a/arm64-v8a.CtsLibcoreTestCases:
      •   org.apache.harmony.tests.java.util.regex.MatcherTest.testAllCodePoints_p
      •  cts-lkft-armeabi-v7a/armeabi-v7a.CtsBluetoothTestCases:
        • android.bluetooth.cts.HearingAidProfileTest.test_getConnectionStateChangedIntent
      • hi6220-hikey_4.9.158:
      •  cts-lkft-armeabi-v7a/armeabi-v7a.CtsBluetoothTestCases:
        • android.bluetooth.cts.HearingAidProfileTest.test_getDevicesMatchingConnectionStates
      • x15_4.14.101:
      •  cts-lkft-armeabi-v7a/armeabi-v7a.CtsWebkitTestCases:
        • android.webkit.cts.WebSettingsTest.testAccessJavaScriptEnabled
        • android.webkit.cts.WebSettingsTest.testAccessLayoutAlgorithm
    • Android 8.1 – 4.4 + HiKey, 4.14 and X15
      • 4.14.103 / X15 – no regressions
      • 4.4.x / HiKey – no new data
    • Bug Activity
      • 22 – stable WtW

Linaro runs a battery of tests on the Open Embedded and Android operating systems using a variety of hardware and kernel versions in order to detect kernel regressions. These regressions are reported to member companies and the various upstream communities like linux-stable.

This report is a summary of our activity this week.

Testing on Open Embedded

  • KV-126 Final testing for upgrade to sumo happening in staging. Looking to upgrade this week.
  • KV-17 Bisection automation work picking back up
    • Design based on performing an OE build identical to production for a particular board, and then submitting lava job to lkft to determine good/bad
    • Bisection was used last week to find the db410c fix; worked well, needs a lot of cleaning up to become generalized and easy to use.
  • KV-36 It looks like we will be able to add x15s to kernelci without any changes to lkft. Will be pursuing with kernelci.
  • KV-171 “Add LTP tests that android runs to OE/LKFT” finished.
    • Dio tests implemented
    • Commands tests implemented
    • Every test implemented except for ftrace_regression02. We would like to run as many tracing tests as we can, so we split that work out into a new ticket: KV-197 Investigate LTP tracing test cases for LKFT test plan improvement
  • KV-195 Test perf in LKFT based on request from Guenter
    • We used to have a simple perf test; Naresh is going to port it into our environment. User-space tools need to be added to build; kernel config already fine. March/April timeframe.
  • KV-194 Test 64k page size in LKFT request from ARM

Bug Status – 60 open bugs

Linux-Stable LTS RC tested this week

  • 2019-02-25
    • 4.9.161, 4.14.104, 4.19.26, 4.20.13
      • Reported no regressions in <24h
  • 2019-02-21
    • 4.4.176, 4.9.160, 4.14.103, 4.19.25, 4.20.12
      • Reported no regressions in <24h

Testing on Android

  • Discussion
    • Tom followed up with John about hikey kernel configs, He’s optimizing for running on AOSP-master, while LKFT is focused on O-MR1, P, and AOSP-master. The CONFIG_QTAGUID change recently increased failures on P, O given there are test that look for the feature. For kernels on the desserts we’ll need to freeze the config
  • Android 9 / P LTS-premerge – 4.4, 4.9, 4.14, 4.19
    • 4.19.26 / HiKey – No regressions
    • 4.19.25 / HiKey – No regressions
    • 4.14.104 / HiKey – No regressions
    • 4.14.103 / HiKey – No regressions
    • 4.9.161 – Run in progress
    • 4.9.160 / HiKey – No regressions
    • 4.4.176 / HiKey – No regressions
    • Addendum

 

 

    • 4.9.160 / HiKey – failures observed on LKFT but not elsewhere, we have been attempting to reproduce however no failures have been since observed.
      • cts-lkft/armeabi-v7a.CtsLibcoreTestCases/org.apache.harmony.tests.java.net.MulticastSocketTest.test_joinGroupLjava_net_SocketAddressLjava_net_NetworkInterface_IPv4_nullInterface
      • cts-lkft/armeabi-v7a.CtsLibcoreTestCases/org.apache.harmony.tests.java.net.MulticastSocketTest.test_joinGroupLjava_net_SocketAddressLjava_net_NetworkInterface_IPv6
      • cts-lkft/armeabi-v7a.CtsLibcoreTestCases/org.apache.harmony.tests.java.net.MulticastSocketTest.test_joinGroupLjava_net_SocketAddressLjava_net_NetworkInterface_IPv6_nullInterface
      • cts-lkft/armeabi-v7a.CtsLibcoreTestCases/org.apache.harmony.tests.java.net.MulticastSocketTest.test_joinGroupLjava_net_SocketAddressLjava_net_NetworkInterface_multiple_joins_IPv4
      • cts-lkft/armeabi-v7a.CtsLibcoreTestCases/org.apache.harmony.tests.java.net.MulticastSocketTest.test_joinGroupLjava_net_SocketAddressLjava_net_NetworkInterface_multiple_joins_IPv6
      • cts-lkft/armeabi-v7a.CtsLibcoreTestCases/org.apache.harmony.tests.java.net.MulticastSocketTest.test_joinGroup_non_multicast_address_IPv4
      • cts-lkft/armeabi-v7a.CtsLibcoreTestCases/org.apache.harmony.tests.java.net.MulticastSocketTest.test_leaveGroupLjava_net_InetAddress_IPv4
  • Android 9 / P –  4.4, 4.9, 4.14, 4.19 + HiKey
  • AOSP-master-tracking –  4.9, 4.14 4.19 / HiKey & 4.14 / X15
    • We suffered several job failures due to a hub controller issue. The lab has fix. 
      • Example jobs : /usr/local/lab-scripts/cbrxd_hub_control –usb_port 7 –mode sync -i DQ007ADJ failed
    • Regressions found on hi6220-hikey_4.14:
      • cts-lkft-arm64-v8a/arm64-v8a.CtsHardwareTestCases/android.hardware.input.cts.tests.AsusGamepadTestCase.testAllKeys
      • cts-lkft-arm64-v8a/arm64-v8a.CtsHardwareTestCases/android.hardware.input.cts.tests.AsusGamepadTestCase.testAllMotions
      • cts-lkft-arm64-v8a/arm64-v8a.CtsHardwareTestCases/android.hardware.input.cts.tests.SonyDualshock4TestCase.testAllKeys
      • cts-lkft-armeabi-v7a/armeabi-v7a.CtsHardwareTestCases/android.hardware.input.cts.tests.AsusGamepadTestCase.testAllKeys
      • cts-lkft-armeabi-v7a/armeabi-v7a.CtsHardwareTestCases/android.hardware.input.cts.tests.AsusGamepadTestCase.testAllMotions
      • cts-lkft-armeabi-v7a/armeabi-v7a.CtsHardwareTestCases/android.hardware.input.cts.tests.SonyDualshock4TestCase.testAllKeys
    • Regressions found on hi6220-hikey_4.19:
      • cts-lkft-arm64-v8a/arm64-v8a.CtsHardwareTestCases/android.hardware.input.cts.tests.AsusGamepadTestCase.testAllKeys
      • cts-lkft-arm64-v8a/arm64-v8a.CtsHardwareTestCases/android.hardware.input.cts.tests.AsusGamepadTestCase.testAllMotions
      • cts-lkft-armeabi-v7a/armeabi-v7a.CtsHardwareTestCases/android.hardware.input.cts.tests.AsusGamepadTestCase.testAllKeys
      • cts-lkft-armeabi-v7a/armeabi-v7a.CtsHardwareTestCases/android.hardware.input.cts.tests.AsusGamepadTestCase.testAllMotions
    • Regressions found on hi6220-hikey_4.9:
      • cts-lkft-arm64-v8a/arm64-v8a.CtsGraphicsTestCases/android.graphics.cts.VulkanPreTransformTest.testVulkanPreTransformSetToMatchCurrentTransform
      • cts-lkft-arm64-v8a/arm64-v8a.CtsHardwareTestCases/android.hardware.input.cts.tests.AsusGamepadTestCase.testAllKeys
      • cts-lkft-arm64-v8a/arm64-v8a.CtsHardwareTestCases/android.hardware.input.cts.tests.AsusGamepadTestCase.testAllMotions
      • cts-lkft-arm64-v8a/arm64-v8a.CtsHardwareTestCases/android.hardware.input.cts.tests.SonyDualshock4TestCase.testAllKeys
  • Android 8.1 – 4.4 + HiKey, 4.14 and X15
    • 4.14.101 / X15
      • 45 failures – 21 are QTAGUID related –CONFIG_NETFILTER_XT_MATCH_QTAGUID needs to be turned on
    • 4.4.174 / HiKey
      • No regressions!
  • Bugs:
    • 22 – Stable WtW

 

Testing on Open Embedded Linux

Testing on Android

  • Discussion :
    • New combo 4.19 + X15 + P – will be added – anticipate ~ 2 weeks
    • Aosp-master-tracking – kernel version, patchlevel, sublevel will be added qa-reports
    • YongQin – updated LKFT to use latest VTS (R5)
  • Android 9 / P LTS-premerge – 4.4, 4.9, 4.14, 4.19
    • 4.19.23  – no regressions
    • 4.14.101 – no regressions
    • 4.9.158 – no regressions
    • 4.4.174 – no new data
  • Android 9 / P –  4.4, 4.9, 4.14, 4.19 + HiKey
    • 4.19.19 – no regressions
    • 4.14.97 – no regressions
    • 4.9.154 – no regressions
    • 4.4.170 – no new data
  • AOSP-master-tracking –  4.9, 4.14 4.19 / HiKey & 4.14 / X15
  • Android 8.1 – 4.4 + HiKey, 4.14 and X15
    • 4.14.101 / X15
      • 21 regressions – QTAGUID – will work with TI team to adjust their config
    • 4.4.170 / HiKey – no regressions
  • Bugs
    • 22 – Stable WtW
    • 4267, 4268, 4269, 4270 
      • Tom
      • Mykhalio (might have time)
    • 4072 – YongQin
    • 3713 – Sumit

 

The information provided is a wrapup of Linaro’s kernel testing efforts. In particular we are searching for kernel regressions. The report is divided into two parts.

The first involves testing of the Linux kernel using Open Embedded as the user space. Long Term Support kernels (LTS) as well as current stable, mainline and next are uses.

The second part of this report involves testing Linux kernels using Android as the user space. LTS kernels is what are being tested, however these LTS kernels also have the out of tree Android Common patches applied.

Generally but not always new kernel versions are available every week. In the case of testing in Open Embedded, we espeically want to report on RC versions of the LTS kernels within the 48 hour testing window before they are released.

Testing on Open Embedded Linux

Automated reports for kselftest results on -next sending to lkft-triage now

  • Report formatting improved, finished

New work:

  • KV-191 UEFI validation in kernelci
  • Ard Biesheuvel requested support testing UEFI boot mode in kernelci under QEMU. This is looking straight-forward

Bug Status — 59 open bugs

RC Log

2019–02–11

  • 4.9.156, 4.14.99, 4.19.21 — Reported no regressions in <24h
  • 4.20.8 — Reported no regressions in <48h

2019–02–07

  • 4.4.174 — Reported no regressions in <24h

Testing on Android

Discussion :

Android 9 / P LTS-premerge — 4.4, 4.9, 4.14, 4.19

  • 4.19.20 / HiKey — no regressions
  • 4.14.98 / HiKey — no regressions
  • 4.9.155 / HiKey — no regressions
  • 4.4.174 / HiKey — failed to boot — with fix applied, Vts is clean — no regressions and Cts network regressions were still there. The fix as it turns out was the need to be on the latest clang release clang-r349610
  • 4.4.173 / HiKey — 97 cts failures were observed (networking)

Android 9 / P — 4.4, 4.9, 4.14, 4.19 + HiKey

  • 4.4.170 / HiKey — no new data
  • 4.9.154 / HiKey — no regressions
  • 4.14.97 / HiKey — no data received
  • 4.19.19 / HiKey — no data received

AOSP-master-tracking — 4.9, 4.14 4.19 / HiKey & 4.14 / X15

  • A regression was introduced where boot to UI was not successful. Through the course of this week that problem was diagnosed and fixed.
  • Cts CtsLibcoreTestcases — new failure java.lang.IllegalStateException: No SecureRandom implementation was observed. This has introduced approximately ~2600 failures per kernel/board combination.
  • Network tests failed with “Network unreachable” (x15 & HiKey)

Android 8.1–4.4 + HiKey, 4.14 and X15

  • 4.14.94 / X15 — no new data this week
  • 4.4.170 / HiKey — no new data

Bugs

  • No bug discussion this week as YongQin is just back
  • 22 bugs — no change WtW

Plan for the week

  • Examine aosp-master for understand better if we are looking at new test/AOSP changes, infra structure issues, etc

This report is broken up into two parts, OpenEmbedded and Android. These are the two operating systems we are using to run a battery of tests in order to find regressions in the kernel as new patches are added.

The general list of tests that Linaro runs can be found at https://lkft.linaro.org/tests/

When we look for regressions tests often fall into 3 categories of results. Pass, Fail (a regression, exactly what we want to find) and Known Failure where there is a past history with the testcase. Often known failures are flaky testscases that need to be fixed.

OpenEmbedded

  • Automated reports for kselftest results on -next sending to lkft-triage now

The following tests were fixed and removed from our list of known issues

  • open11
  • fcntl36
  • pselect01
  • pselect01_64
  • inotify08
  • bind03

Bug Status — 61 open bugs

RC Log

  • 4.4.173, 4.9.155, 4.14.98, 4.19.20, 4.20.7
  • LTP/fanotify09 confirmed fixed on 4.14.98 due to backport requested in 4.14.97
  • Reported no regressions in <24h

Android

New prebuilt of clang r349610

  • build tested on 4.4.172, 4.9.153, 4.14.96, 4.19.18
  • Boot tested : 4.19.18, 4.14.96, 4.9.153, 4.4.172
  • VTS tested: 4.19.18, 4.14.96, 4.9.153, 4.4.172
  • 4.4.172 — has 1 VtsKernelProcFileApi regression
  • 4.14.96 has 12 kselftest regressions
  • CTS tested: 4.14.96, 4.9.153, 4.4.172 — No regressions

New LTP 20190115 release

  • New VTS 9.0_r5 with latest LPT 20190115 created for testing
  • Initial 4.19.19, 4.14.97, 4.9.154. run has been made, 4.4.172 is in progress at press time

Android 9 / P LTS-premerge — 4.4, 4.9, 4.14, 4.19

  • 4.19.19–1 regression
  • testUsbSerialReadOnDeviceMatches warrents looking into lsusb -v fails?
  • 4.19.20 — in progress
  • 4.14.97 — no regressions
  • 4.14.98 — in progress
  • 4.9.154 — no regressions
  • 4.9.155 — in progress
  • 4.4.173 — in progress

Android 9 / P — 4.4, 4.9, 4.14, 4.19 + HiKey

  • 4.19.16 — current, no new data
  • 4.14.94 — current, no new data
  • 4.9.150 — current, no new data
  • 4.4.170 — current, no new data

AOSP-master-tracking — 4.9, 4.14 4.19 / HiKey & 4.14 / X15

Bugs

  • 22 — Steady WtW

This week the Linux based testing the uses Openembedded upgraded to a newer version of LTP. The Android based testing will make a similar upgrade in another week or two.

Two sets of LTS releases were made during the course of the week this report covers. No regressions were observed on Linux nor with Android.

OpenEmbedded

  • LTP “mm” tests added to LKFT (75 tests/board)
  • Upgraded kselftest that is run against all stable kernels to 4.20.

Bug Status — 65 open bugs

RC Log

2019–01–30

  • 4.9.154, 4.14.97, 4.19.19, 4.20.6
  • LTP upgraded to 20190115 for all branches
  • Reported no regressions in <48h

2019–01–24

  • 4.4.172, 4.9.153, 4.14.96, 4.19.18, 4.20.5
  • kselftest upgraded to 4.20 for all LTS branches
  • Reported no regressions in <24h

Android

Discussion

  • 4.19 has a fairly high number of failures as part of it’s baseline. Started to look into improving baseline
  • 40 VTS failures due to QTAGUID on 4.19, moving to known failures.
  • New LTP testcases, consistent failures

vts-test/arm64-v8a.VtsKernelLtp/VtsKernelLtp.io.aio01_64bit fail

vts-test/arm64-v8a.VtsKernelLtp/VtsKernelLtp.io.aio02_64bit fail

vts-test/arm64-v8a.VtsKernelLtp/VtsKernelLtp.syscalls.io_setup01_64bit fail

vts-test/arm64-v8a.VtsKernelLtp/VtsKernelLtp.syscalls.io_submit01_64bit fail

vts-test/arm64-v8a.VtsKernelLtp/VtsKernelLtp.syscalls.select04_64bit fail

vts-test/armeabi-v7a.VtsKernelLtp/VtsKernelLtp.io.aio01_32bit fail

vts-test/armeabi-v7a.VtsKernelLtp/VtsKernelLtp.io.aio02_32bit fail

vts-test/armeabi-v7a.VtsKernelLtp/VtsKernelLtp.syscalls.io_setup01_32bit fail

vts-test/armeabi-v7a.VtsKernelLtp/VtsKernelLtp.syscalls.io_submit01_32bit fail

Android 9 / P LTS-premerge — 4.4, 4.9, 4.14, 4.19

  • 4.19.18 — no regressions
  • 4.19.17 — no regressions
  • 4.14.96 — no regressions
  • 4.14.95 — no regressions
  • 4.9.153 — no regressions
  • 4.9.152 — no regressions
  • 4.4.172 — no regressions
  • 4.4.171 — no regressions

Android 9 / P — 4.4, 4.9, 4.14, 4.19 + HiKey

  • 4.19.16 — current, rerun completed for missing CTS from last week otherwise no new data
  • 4.14.94 — current, no new data
  • 4.9.150 — current, no new data
  • 4.4.170 — current, no new data

AOSP-master-tracking — 4.9, 4.14 4.19 / HiKey & 4.14 / X15

Android 8.1–4.4 + HiKey, 4.14 and X15

  • 4.14.94 / X15 — seems PVR driver is not loading (outdated). Need to test locally, build and upload the driver.
  • 4.4.170 / HiKey — current, no new data

Bugs

One of the things that we do at Linaro is testing Linux Kernels to look for kernel regressions. Ideally we want a world where those that make use of Long Term Support Kernels (LTS) can depend on the stream of fixes that are being provided.

Mobile phone companies, Linux Distros, embedded Linux deployments, etc all generally like the idea of installing one major version of Linux (e.g. 4.9) and sticking with it for the lifetime of their product.

This, and following stories tell how week to week testing of Linux kernels is going, what we’ve found, or better, not found as the kernel versions tick by.

We test using two host user spaces, open embedded and Android.

Open Embedded

2019–01–21

4.9.152, 4.14.95, 4.20.4

  • Reported crashes in v4.20.3–15-g5592f5bf010b which were intentional ‘canaries’ (the canary successfully died)
  • Reported no regressions in <24h

4.19.17

  • Reported no regressions in <48h

Bug Status — 57 open bugs

Android

Android 9 / P — 4.4, 4.9, 4.14, 4.19 on HiKey

  • 4.14.94 — no regressions
  • 4.19.16 — Note USB OTG regression and potential eMMC issue documented in the bugs section
  • 4.4.170 — no regressions
  • 4.9.150 — no regressions

Android 8.1–4.4 on HiKey, Android 8.1, 4.14 on X15

  • 4.14.94 / X15 no regressions
  • 4.4.170 / HiKey no regressions

Android 9/P + automerged latest version of LTS 4.4, 4.9, 4.14, 4.19 + HiKey + Latest LTP

  • This new combination is a work in progress to pull in latest LTP from AOSP-master, as well as using the combination of Android Common + HiKey Linaro (auto merged). It triggers automatically when Android Common is updated right after a new LTS release is merged. This combo thus gives everyone great visibility to test results nearly immediately after an new LTS is available.
  • We have initial data but are not sharing them as part of this report yet.

AOSP-master tracking with 4.4, 4.9, 4.14, 4.19 on HiKey

  • These builds are being reworked / repackaged so we’ll have data to report next week.

Bugs

Kernel Testing News 11/30/2018

Posted: November 30, 2018 in Uncategorized

Nov 26th saw the release of 4.4.165, 4.9.141, 4.14.84 and 4.19.4

For these LTS kernel versions, results were reported upstream, no regressions were found.

2018-11-26: Rafael Tinoco – bug 4043 – Asked Greg to backport a fix for v4.4, Sasha forwarded to the mm list.

For Android Kernels, regressions were detected.

Issues:

  • 4.14.84 + HiKey boot regression – observed in with 9.0 and AOSP
  • 4.4.165 Regression:
    VtsKernelSyscallExistence#testSyscall_name_to_handle_at – Unknown
    error: test case requested but not executed.
    VtsKernelSyscallExistence#testSyscall_open_by_handle_at – Unknown
    error: test case requested but not executed.
    VtsKernelSyscallExistence#testSyscall_uselib – Unknown error: test
    case requested but not executed.

No Others Regressions: 4.4.165 and 4.9.141 on Android 9.

X15: 4.14.84 + O-MR1 – Baselining activity has been particularly effective over the past two weeks, dropping the number of errors from 65 failing tests to 16 as of today. That’s really good progress towards setting a clean baseline.

Bug 4033  Sumit has been looking at the failing CtsBluetoothTestCases android.bluetooth.cts.BluetoothLeScanTest#testBasicBleScan and android.bluetooth.cts.BluetoothLeScanTest.testScanFilter failures.

These tests both pass across all kernels with 8.1. They however fail with both 9.0 and AOSP. Looking at historical AOSP results it appears that failures there started approx in the September timeframe.

Last, successful test builds and test boot to UI with 4.4.165 and 4.9.141 with Android 9) using the newly released clang-r346389 compiler.

Having been at Google IO 2018 I happened to be lucky enough to attend the “What’s new on ChromeOS.” session at the end of which they handed out not only groovy socks but also 75% off on Pixelbook.

During the session however Google had all sorts of things to say about enabling both Linux and Android development on ChromeOS. Now these are two things the world has needed and wanted for some time.

The Chromebook offer is for the midrange i5 based Chromebook. I received mine on Friday so I’ve had a few days with it.

IMG_6336

Setting up to Android development, meaning having Android Studio running as well as being able to run/debug Android Apps running on the Chromebook wasn’t too hard to setup.

Instructions are here but they are wrong in a few spots.

First, do turn on developer unstable and turn on Linux. BUT in order to debug Android Apps via Android Studio, you need to then turn on developer mode on your Pixelbook (or other akin device). You can’t debug Android Apps over USB (yet) so really I view this as an essential step.

Developer mode of course wipes the device so yeah, takes a bit longer to get to the end goal. You’ll live. I’ll link to the ‘snarky’ guide because there’s reasons not to enable developer mode if you don’t know what you’re doing. Remember you JUST need to enable developer mode, nothing else from this guide.

With developer mode on, again, turn on Linux mode, and now follow the rest of the guide. When you get to the point where you need to Mount Linux Files, before you do that you need to enable ssh server first in the debian environment.

> sudo rm sshd_not_to_be_run

> sudo service ssh restart

Ok now go back to the guide.

Then when you get to the Android Studio part, make sure you download the current preview, 3.2. If you don’t you’ll end up in a world of frustration where your new shiny Pixelbook will be at great risk to you throwing it across the room.

That done, you’ll find App development is pretty darn smooth. I’ve pounded out a couple of simple apps this weekend and everything ‘just worked’.  I’ll note that your very first compile will take awhile. This is down to some gradle files getting downloaded in the background. In real world terms, my first “hello world” app took about 3 minutes to build. After that, more like a second or two.

 

Apple Watch and wearables thoughts

Posted: February 28, 2015 in Uncategorized

On March 9th will be the Apple event fully revealing the Apple watch. I don’t think we saw the full set of features that will be made available as part of the Apple watch.

Tim Cook mentioned the use of the Apple watch as a replacement car fob, thus this week.

It’s pretty widely known that the Watch Edition is going to cost a very significant amount of money given the gold involved. $10,000-$20,000 seems to be the current guess and frankly when one compares to other high end watches, this is normal.

Consider tho that consumer electronics have tend to be on a pretty aggressive replacement cycle. You’re not going to make inroads with your customers if next years model is supposed to replace the $10,000 or $20,000 watch you bought the year before. Sure if you can afford a $10,000 watch you might not care. Still, other high end watches really follow this same model. They are built to last. A person holds on to a Rolex for a long time. Apple knows this and they do pride themselves in customer service.

With the ARA project we’ve seen a move to components that can be upgraded/replaced over time. I wonder if we’re going to see something akin to this with the Apple Watch, especially for the Watch Edition if not even the lower end models. You might have to take your watch into an Apple store, but for this class of hardware, that doesn’t seem like to much to ask. See the S1 called out in the marketing materials.

If this happens, and it’s an if, the Android wearables will certainly need to catch up.

Even then, are we seeing a change in the consumer electronics market, one toward devices which can be hardware upgradable and built to last longer?

This would seem to be an important design characteristic for an operating system such as Android to find it’s way into other use cases.