[General Paranoid Android Discussion] nmlssit:
I noticed many wakelocks caused by syncservice in BBS, so i went to settings and i saw "Sync Error" in my Google Account.

Later that i browsed Disable Service app and discovered that "SyncService" in Google Play Service does not work at all, i tried to activate it many times, but in vain.

Here's what i grabbed using adb logcat during the sync of my Google account.

I am using pico package on Vanir with ART.

W/art ( 219): Could not get current activity
I/art ( 8191): GcCauseBackground sticky partial concurrent mark sweep GC freed 15795(1070KB) AllocSpace objects, 0(0B) LOS objects, 30% free, 6MB/9MB, paused 11.205ms total 35.092ms
I/ActivityManager( 799): Start proc com.google.android.keep for service com.google.android.keep/.syncadapter.KeepSyncAdapterService: pid=28372 uid=10082 gids={50082, 3003, 1028, 1015}
D/ActivityThread(28372): handleBindApplication:com.google.android.keep
D/ActivityThread(28372): setTargetHeapUtilization:0.75
D/ActivityThread(28372): setTargetHeapMinFree:2097152
W/GmsApplication(27095): Using Auth Proxy for data requests.
I/GoogleHttpClient(27095): Falling back to old SSLCertificateSocketFactory
I/GLSUser (27095): [ ChannelManager ] Attempting to channel bind connection HttpClient.
I/GLSUser (27095): [ ChannelManager ] Skip channel binding on pre-KLP devices.
W/GmsApplication(27095): Using Auth Proxy for data requests.
W/GmsApplication(27095): Using Auth Proxy for data requests.
W/GmsApplication(27095): Using Auth Proxy for data requests.
W/GmsApplication(27095): Using Auth Proxy for data requests.
W/GmsApplication(27095): Using Auth Proxy for data requests.
W/GmsApplication(27095): Using Auth Proxy for data requests.
I/art (26977): Heap trim of managed (duration=1.449948ms, advised=632KB) and native (duration=987.813us, advised=0B) heaps. Managed heap utilization of 56%.
I/Fitness (26995): create fitness syncadapterService
I/Fitness (26995): bind fitness syncadapterService
D/DelayedSyncController(19466): Delaying sync.
W/InputMethodManagerService( 799): Window already focused, ignoring focus gain of: com.android.internal.view.IInputMethodClient$Stub$Proxy@658bc6c8 attribute=null, token = android.os.BinderProxy@658d54c8
I/art ( 799): Heap trim of managed (duration=17.141459ms, advised=1752KB) and native (duration=2.582500ms, advised=1116KB) heaps. Managed heap utilization of 79%.
I/GoogleHttpClient(26977): Falling back to old SSLCertificateSocketFactory
I/GLSUser (26977): [ ChannelManager ] Attempting to channel bind connection HttpClient.
I/GLSUser (26977): [ ChannelManager ] Skip channel binding on pre-KLP devices.
I/NotificationStore(26977): file does not exist: /data/data/com.google.android.gms/files/notification_data.dat
I/ActivityManager( 799): Killing 25310:com.google.android.partnersetup/u0a22 (adj 15): empty #17
I/Gmail (22666): MainSyncRequestProto: lowestBkwdConvoId: 0, highestHandledServerOp: 914533, normalSync: true
I/art (22666): Heap trim of managed (duration=3.811979ms, advised=540KB) and native (duration=1.394948ms, advised=368KB) heaps. Managed heap utilization of 62%.
I/Gmail (22666): MainSyncRequestProto: lowestBkwdConvoId: 0, highestHandledServerOp: 914533, normalSync: true
I/Gmail (22666): lowestBackward conversation id 0
I/copresGcore(26995): Sync all.
I/copresGcore(26995): Broadcast sent to handle copresence sync settings.
I/art (26977): Heap trim of managed (duration=1.900364ms, advised=224KB) and native (duration=784.792us, advised=20KB) heaps. Managed heap utilization of 60%.
I/GLSUser (26977): [GLSUser] extracting token using key:Auth
W/GLSUser (26977): [GLSUser] [GLSUser] Permission for com.google.android.gms to access oauth2:https://www.googleapis.com/auth/reminders will be managed locally.
W/GmsApplication(27095): Using Auth Proxy for data requests.
W/ActivityThread(27095): ClassLoader.loadClass: The class loader returned by Thread.getContextClassLoader() may fail for processes that host multiple applications. You should explicitly specify a context class loader. For example: Thread.setContextClassLoader(getClass().getClassLoader());
W/ProcessCpuTracker( 799): Skipping unknown process pid 28444
W/ProcessCpuTracker( 799): Skipping unknown process pid 28445
I/art (26206): Heap trim of managed (duration=920.416us, advised=0B) and native (duration=1.126979ms, advised=0B) heaps. Managed heap utilization of 45%.
I/Fitness (26995): create fitness syncadapterService
I/Fitness (26995): bind fitness syncadapterService
W/art ( 219): Could not get current activity
I/ActivityManager( 799): Start proc com.google.android.apps.paidtasks for service com.google.android.apps.paidtasks/.SyncService: pid=28487 uid=10087 gids={50087, 3003}
D/ActivityThread(28487): handleBindApplication:com.google.android.apps.paidtasks
D/ActivityThread(28487): setTargetHeapUtilization:0.75
D/ActivityThread(28487): setTargetHeapMinFree:2097152
I/art ( 799): Heap trim of managed (duration=11.959948ms, advised=1756KB) and native (duration=2.108541ms, advised=1136KB) heaps. Managed heap utilization of 80%.
D/ (28487): Zip: Could not find entry com/google/android/apps/paidtasks/dev.properties
W/art (28487): ZipEntry: failed to Find com/google/android/apps/paidtasks/dev.properties (Entry not found): No such file or directory
D/ (28487): Zip: Could not find entry com/google/android/apps/paidtasks/dev.properties
W/art (28487): ZipEntry: failed to Find com/google/android/apps/paidtasks/dev.properties (Entry not found): No such file or directory
D/ (28487): Zip: Could not find entry com/google/android/apps/paidtasks/dev.properties
W/art (28487): ZipEntry: failed to Find com/google/android/apps/paidtasks/dev.properties (Entry not found): No such file or directory
D/ (28487): Zip: Could not find entry com/google/android/apps/paidtasks/dev.properties
W/art (28487): ZipEntry: failed to Find com/google/android/apps/paidtasks/dev.properties (Entry not found): No such file or directory
D/ (28487): Zip: Could not find entry com/google/android/apps/paidtasks/dev.properties
W/art (28487): ZipEntry: failed to Find com/google/android/apps/paidtasks/dev.properties (Entry not found): No such file or directory
D/ (28487): Zip: Could not find entry com/google/android/apps/paidtasks/dev.properties
W/art (28487): ZipEntry: failed to Find com/google/android/apps/paidtasks/dev.properties (Entry not found): No such file or directory
D/ (28487): Zip: Could not find entry com/google/android/apps/paidtasks/dev.properties
W/art (28487): ZipEntry: failed to Find com/google/android/apps/paidtasks/dev.properties (Entry not found): No such file or directory
D/ (28487): Zip: Could not find entry com/google/android/apps/paidtasks/dev.properties
W/art (28487): ZipEntry: failed to Find com/google/android/apps/paidtasks/dev.properties (Entry not found): No such file or directory
D/ (28487): Zip: Could not find entry com/google/android/apps/paidtasks/dev.properties
W/art (28487): ZipEntry: failed to Find com/google/android/apps/paidtasks/dev.properties (Entry not found): No such file or directory
D/ (28487): Zip: Could not find entry com/google/android/apps/paidtasks/dev.properties
W/art (28487): ZipEntry: failed to Find com/google/android/apps/paidtasks/dev.properties (Entry not found): No such file or directory
D/ (28487): Zip: Could not find entry com/google/android/apps/paidtasks/dev.properties
W/art (28487): ZipEntry: failed to Find com/google/android/apps/paidtasks/dev.properties (Entry not found): No such file or directory
D/ (28487): Zip: Could not find entry com/google/android/apps/paidtasks/dev.properties
W/art (28487): ZipEntry: failed to Find com/google/android/apps/paidtasks/dev.properties (Entry not found): No such file or directory
D/ (28487): Zip: Could not find entry com/google/android/apps/paidtasks/dev.properties
W/art (28487): ZipEntry: failed to Find com/google/android/apps/paidtasks/dev.properties (Entry not found): No such file or directory
D/ (28487): Zip: Could not find entry com/google/android/apps/paidtasks/dev.properties
W/art (28487): ZipEntry: failed to Find com/google/android/apps/paidtasks/dev.properties (Entry not found): No such file or directory
D/ (28487): Zip: Could not find entry com/google/android/apps/paidtasks/dev.properties
W/art (28487): ZipEntry: failed to Find com/google/android/apps/paidtasks/dev.properties (Entry not found): No such file or directory
D/ (28487): Zip: Could not find entry com/google/android/apps/paidtasks/dev.properties
W/art (28487): ZipEntry: failed to Find com/google/android/apps/paidtasks/dev.properties (Entry not found): No such file or directory
D/ (28487): Zip: Could not find entry com/google/android/apps/paidtasks/env.properties
W/art (28487): ZipEntry: failed to Find com/google/android/apps/paidtasks/env.properties (Entry not found): No such file or directory
D/ (28487): Zip: Could not find entry com/google/android/apps/paidtasks/env.properties
W/art (28487): ZipEntry: failed to Find com/google/android/apps/paidtasks/env.properties (Entry not found): No such file or directory
D/ (28487): Zip: Could not find entry com/google/android/apps/paidtasks/env.properties
W/art (28487): ZipEntry: failed to Find com/google/android/apps/paidtasks/env.properties (Entry not found): No such file or directory
D/ (28487): Zip: Could not find entry com/google/android/apps/paidtasks/env.properties
W/art (28487): ZipEntry: failed to Find com/google/android/apps/paidtasks/env.properties (Entry not found): No such file or directory
D/ (28487): Zip: Could not find entry com/google/android/apps/paidtasks/env.properties
W/art (28487): ZipEntry: failed to Find com/google/android/apps/paidtasks/env.properties (Entry not found): No such file or directory
D/ (28487): Zip: Could not find entry com/google/android/apps/paidtasks/env.properties
W/art (28487): ZipEntry: failed to Find com/google/android/apps/paidtasks/env.properties (Entry not found): No such file or directory
D/ (28487): Zip: Could not find entry com/google/android/apps/paidtasks/env.properties
W/art (28487): ZipEntry: failed to Find com/google/android/apps/paidtasks/env.properties (Entry not found): No such file or directory
D/ (28487): Zip: Could not find entry com/google/android/apps/paidtasks/env.properties
W/art (28487): ZipEntry: failed to Find com/google/android/apps/paidtasks/env.properties (Entry not found): No such file or directory
D/ (28487): Zip: Could not find entry com/google/android/apps/paidtasks/env.properties
W/art (28487): ZipEntry: failed to Find com/google/android/apps/paidtasks/env.properties (Entry not found): No such file or directory
D/ (28487): Zip: Could not find entry com/google/android/apps/paidtasks/env.properties
W/art (28487): ZipEntry: failed to Find com/google/android/apps/paidtasks/env.properties (Entry not found): No such file or directory
D/ (28487): Zip: Could not find entry com/google/android/apps/paidtasks/env.properties
W/art (28487): ZipEntry: failed to Find com/google/android/apps/paidtasks/env.properties (Entry not found): No such file or directory
D/ (28487): Zip: Could not find entry com/google/android/apps/paidtasks/env.properties
W/art (28487): ZipEntry: failed to Find com/google/android/apps/paidtasks/env.properties (Entry not found): No such file or directory
D/ (28487): Zip: Could not find entry com/google/android/apps/paidtasks/env.properties
W/art (28487): ZipEntry: failed to Find com/google/android/apps/paidtasks/env.properties (Entry not found): No such file or directory
D/ (28487): Zip: Could not find entry com/google/android/apps/paidtasks/env.properties
W/art (28487): ZipEntry: failed to Find com/google/android/apps/paidtasks/env.properties (Entry not found): No such file or directory
D/ (28487): Zip: Could not find entry com/google/android/apps/paidtasks/env.properties
W/art (28487): ZipEntry: failed to Find com/google/android/apps/paidtasks/env.properties (Entry not found): No such file or directory
D/ (28487): Zip: Could not find entry com/google/android/apps/paidtasks/env.properties
W/art (28487): ZipEntry: failed to Find com/google/android/apps/paidtasks/env.properties (Entry not found): No such file or directory
V/WebViewChromiumFactoryProvider(28487): Binding Chromium to main looper Looper (main, tid 1) {64d51930}
I/LibraryLoader(28487): Expected native library version number "",actual native library version number ""
I/chromium(28487): [INFO:library_loader_hooks.cc(116)] Chromium logging enabled: level = 0, default verbosity = 0
I/BrowserStartupController(28487): Initializing chromium process, renderers=0
W/art (28487): Attempt to remove local SIRT entry from IRT, ignoring
E/AudioManagerAndroid(28487): BLUETOOTH permission is missing!
I/Adreno-EGL(28487): <qeglDrvAPI_eglInitialize:320>: EGL 1.4 QUALCOMM Build: I0404c4692afb8623f95c43aeb6d5e13ed4b30ddbDate: 11/06/13
W/art (28487): Thread[15,tid=28515,Native,Thread*=0x4a4e3c78,peer=0x64e6c178,"Thread-1548"] attached without supplying a name
W/art (28487): Thread[16,tid=28517,Native,Thread*=0x4a46ca90,peer=0x64e6c408,"Thread-1549"] attached without supplying a name
W/art (28487): Thread[17,tid=28510,Native,Thread*=0x4a261918,peer=0x64e73210,"Thread-1550"] attached without supplying a name
D/AudioManagerAndroid(28487): ==> onReceive: s=0, m=1, n=h2w, sb=true
D/AudioManagerAndroid(28487): reportUpdate: state=0, devices=[Speakerphone, Headset earpiece]
W/GmsApplication(27095): Using Auth Proxy for data requests.
W/GmsApplication(27095): Using Auth Proxy for data requests.
W/GmsApplication(27095): Using Auth Proxy for data requests.
W/GmsApplication(27095): Using Auth Proxy for data requests.
W/GmsApplication(27095): Using Auth Proxy for data requests.
I/art (26977): Heap trim of managed (duration=2.128959ms, advised=224KB) and native (duration=911.458us, advised=12KB) heaps. Managed heap utilization of 59%.
W/GmsApplication(27095): Using Auth Proxy for data requests.
I/ActivityManager( 799): Killing 27015:com.android.launcher3/u0a8 (adj 15): empty #17
I/PeopleSync(27095): onPerformSync() [51bd4b16]
I/PeopleSync(27095): Setting subscription: result=true [51bd4b16]
I/PeopleSync(27095): Starting sync, feed=null [51bd4b16]
W/GmsApplication(27095): Using Auth Proxy for data requests.
W/GmsApplication(27095): Using Auth Proxy for data requests.
W/GmsApplication(27095): Using Auth Proxy for data requests.
I/PeopleSync(27095): Sync start: cannotHavePeople=false isPageExistenceCheckOnly=false
I/art (26185): Heap trim of managed (duration=7.678802ms, advised=3MB) and native (duration=3.210781ms, advised=16KB) heaps. Managed heap utilization of 76%.
I/PeopleSync(27095): Sync finished, successful=true, took 1952ms
I/PeopleContactsSync(27095): CP2 sync start [51bd4b16]
I/art ( 799): Heap trim of managed (duration=19.778021ms, advised=1776KB) and native (duration=2.325938ms, advised=1136KB) heaps. Managed heap utilization of 79%.
I/PeopleContactsSync(27095): CP2 sync: diff=PeopleSyncDiffs: sync enabled; unchanged [51bd4b16]
I/PeopleContactsSync(27095): Syncing people to contacts: PeopleSyncDiffs: sync enabled; unchanged [51bd4b16]
I/PeopleContactsSync(27095): ===CP2 sync finished, success=true, time=157,13,0,0,0,0 rc=46,0,0,0 av=0,0,0,0,0,0 [51bd4b16]
I/PeopleSync(27095): ***Sync finished***, duration: 2328 [51bd4b16]
I/art (27095): Heap trim of managed (duration=3.591146ms, advised=92KB) and native (duration=1.050521ms, advised=68KB) heaps. Managed heap utilization of 68%.
D/SyncManager( 799): failed sync operation [derpyderp]@gmail.com u0 (com.google), com.android.browser, USER, latestRunTime 11399869, reason: 1000, SyncResult: databaseError: true stats []
D/SyncManager( 799): not retrying sync operation because the error is a hard error: [derpyderp]@gmail.com u0 (com.google), com.android.browser, USER, latestRunTime 11409547, reason: 1000
E/ActivityThread(26977): Failed to find provider info for com.android.browser
D/DelayedSyncController(19466): Manual sync requested.
V/ChromiumSyncAdapter(19466): Received sync tickle for all types.
W/GmsApplication(26995): Using Auth Proxy for data requests.
I/GoogleHttpClient(26995): Falling back to old SSLCertificateSocketFactory
I/GLSUser (26995): [ ChannelManager ] Attempting to channel bind connection HttpClient.
I/GLSUser (26995): [ ChannelManager ] Skip channel binding on pre-KLP devices.
I/art (26977): Heap trim of managed (duration=9.192760ms, advised=256KB) and native (duration=2.390522ms, advised=28KB) heaps. Managed heap utilization of 61%.
W/GmsApplication(27095): Using Auth Proxy for data requests.
W/GmsApplication(27095): Using Auth Proxy for data requests.
W/art ( 219): Could not get current activity
I/ActivityManager( 799): Start proc com.google.android.syncadapters.calendar for service com.google.android.syncadapters.calendar/.CalendarSyncAdapterService: pid=28600 uid=10055 gids={50055, 3003}
D/ActivityThread(28600): handleBindApplication:com.google.android.syncadapters.calendar
D/ActivityThread(28600): setTargetHeapUtilization:0.75
D/ActivityThread(28600): setTargetHeapMinFree:2097152
W/AbstractGoogleClient(28600): Application name is not set. Call Builder#setApplicationName.
I/ActivityManager( 799): Start proc com.android.providers.calendar for content provider com.android.providers.calendar/.CalendarProvider2: pid=28619 uid=10001 gids={50001, 3003, 1028, 1015}
D/ActivityThread(28619): handleBindApplication:com.android.providers.calendar
D/ActivityThread(28619): setTargetHeapUtilization:0.75
D/ActivityThread(28619): setTargetHeapMinFree:2097152
I/CalendarProvider2(28619): Created com.android.providers.calendar.CalendarAlarmManager@64d920b8(com.android.providers.calendar.CalendarProvider2@64d80638)
I/GCoreUlr(26995): Starting service, intent=Intent { act=com.google.android.location.reporting.ACTION_UPDATE_ACTIVE_STATE cmp=com.google.android.gms/com.google.android.location.reporting.service.DispatchingService }, extras=null
I/art (26995): Heap trim of managed (duration=5.039011ms, advised=320KB) and native (duration=1.152031ms, advised=0B) heaps. Managed heap utilization of 62%.
I/GCoreUlr(26995): Starting service, intent=Intent { act=com.google.android.location.reporting.ACTION_UPDATE_ACTIVE_STATE cmp=com.google.android.gms/com.google.android.location.reporting.service.DispatchingService }, extras=null
I/GCoreUlr(26995): Ensuring that reporting is stopped because of reasons: {account#10#=[InactiveReason{mVersionCode=0, mIdentifier=12, mName='LocationDisabled'}, InactiveReason{mVersionCode=0, mIdentifier=6, mName='ReportingNotSelected'}]}
D/GCoreFlp(26995): Unknown pending intent to remove.
I/GCoreUlr(26995): Unbound from all location providers
I/GCoreUlr(26995): Ensuring that reporting is stopped because of reasons: {account#10#=[InactiveReason{mVersionCode=0, mIdentifier=12, mName='LocationDisabled'}, InactiveReason{mVersionCode=0, mIdentifier=6, mName='ReportingNotSelected'}]}
D/GCoreFlp(26995): Unknown pending intent to remove.
I/GCoreUlr(26995): Unbound from all location providers
D/CalendarSyncAdapter(28600): Found 0 events marked dirty & lastSynced
I/art ( 799): Heap trim of managed (duration=12.498490ms, advised=1784KB) and native (duration=3.045781ms, advised=1136KB) heaps. Managed heap utilization of 79%.
I/CalendarProvider2(28619): Sending notification intent: Intent { act=android.intent.action.PROVIDER_CHANGED dat=content://com.android.calendar }
W/ContentResolver(28619): Failed to get type for: content://com.android.calendar (Unknown URL content://com.android.calendar)
I/ActivityManager( 799): Killing 27049:com.android.gallery3d/u0a35 (adj 15): empty #17
I/ActivityManager( 799): Killing 27077:org.cyanogenmod.voiceplus/u0a53 (adj 15): empty #17
V/CalendarSyncAdapter(28600): Saving inProgress state: {calendarId=[derpyderp]@gmail.com, maxAttendees=50, maxResults=200, timeMax=2015-11-01T00:00:00.000Z, updatedMin=2014-10-14T09:14:33.867Z}
D/CalendarSyncAdapter(28600): Found 0 events marked dirty & lastSynced
V/CalendarSyncAdapter(28600): Saving inProgress state: {calendarId=#contacts@group.v.calendar.google.com, maxAttendees=50, maxResults=200, timeMax=2015-11-01T00:00:00.000Z, updatedMin=2014-10-14T09:14:33.867Z}
D/CalendarSyncAdapter(28600): Found 0 events marked dirty & lastSynced
V/CalendarSyncAdapter(28600): Saving inProgress state: {calendarId=it.italian#holiday@group.v.calendar.google.com, maxAttendees=50, maxResults=200, timeMax=2015-11-01T00:00:00.000Z, updatedMin=2014-10-10T06:06:39.324Z}
D/CalendarSyncAdapter(28600): Found 0 events marked dirty & lastSynced