[Galaxy S III Android Development] exscape:
Unfortunately, the ROM isn't very stable for me. Is anyone else having issues with random "reboots" (not actual reboots, but the boot logo appears etc., seems to be systemserver that crashes)?

Logcat has the same error every single time:

07-16 09:14:13.301 W/art (4664): Suspending all threads took: 333.662ms

07-16 09:14:16.726 I/art (4664): WaitForGcToComplete blocked for 303.536ms for cause DisableMovingGc

07-16 09:14:16.726 I/art (4664): WaitForGcToComplete blocked for 260.128ms for cause DisableMovingGc

07-16 09:14:16.736 I/art (4664): WaitForGcToComplete blocked for 244.297ms for cause DisableMovingGc

07-16 09:14:16.736 I/art (4664): WaitForGcToComplete blocked for 224.664ms for cause DisableMovingGc

07-16 09:14:19.551 W/art (4664): Verification of void com.google.android.apps.gsa.extradex.recognizer.EntryPoint.addS3DebugInfo(com.google.speech.e.ac, android.content.SharedPreferences) took 619.229ms

07-16 09:14:19.731 W/art (4664): Verification of com.google.android.voicesearch.f.c com.google.android.apps.gsa.extradex.tts.EntryPoint.createS3TtsSynthesizer(java.util.concurrent.ExecutorService, com.google.android.apps.gsa.shared.util.c.w, com.google.android.speech.h.k, com.google.android.speech.h.n, com.google.android.apps.gsa.m.a.f, com.google.android.search.core.v) took 622.548ms

07-16 09:14:20.086 W/art (4664): Verification of com.google.android.search.core.m.ae com.google.android.apps.gsa.extradex.attemptedsearchhistory.EntryPoint.createAttemptedSearchHistoryWorker(com.google.android.velvet.k, com.google.android.search.core.google.b.n, com.google.android.search.core.h.b, com.google.android.search.core.state.p, com.google.android.search.core.state.z, android.content.Context, com.google.android.apps.gsa.shared.util.c.v) took 793.461ms

07-16 09:14:20.251 W/art (4664): Verification of com.google.android.speech.f com.google.android.apps.gsa.extradex.recognizer.EntryPoint.createRecognizer(java.util.concurrent.ScheduledExecutorService, com.google.android.apps.gsa.speech.audio.a, com.google.android.apps.gsa.speech.h.b, com.google.android.speech.h.n, com.google.android.speech.h.g, com.google.android.speech.j, com.google.android.search.core.v, com.google.android.apps.gsa.shared.util.c.u, com.google.android.apps.gsa.shared.util.l, b.a.a) took 698.881ms

07-16 09:14:21.151 W/art (4614): Long monitor contention event with owner method=void android.os.MessageQueue.nativeWake(long) from MessageQueue.java:4294967294 waiters=0 for 3.250s

07-16 09:14:22.481 I/Process (2203): Sending signal. PID: 4664 SIG: 3

07-16 09:14:22.561 I/art (4664): Thread[5,tid=4673,WaitingInMainSignalCatcherLoop,Thread*=0x4242b000,peer=0x12c320a0,"Signal Catcher"]: reacting to signal 3

07-16 09:14:22.681 I/Process (2203): Sending signal. PID: 2203 SIG: 3

07-16 09:14:22.681 I/art (2203): Thread[5,tid=2212,WaitingInMainSignalCatcherLoop,Thread*=0x4260c000,peer=0x12c020a0,"Signal Catcher"]: reacting to signal 3

07-16 09:14:22.916 W/art (4664): Suspending all threads took: 357.795ms

07-16 09:14:23.741 E/SensorService(2203): sensor poll failed (Operation not permitted)

07-16 09:14:23.741 W/SensorService(2203): Exiting SensorService::threadLoop => aborting...

07-16 09:14:23.741 F/libc (2203): Fatal signal 6 (SIGABRT), code -6 in tid 2243 (SensorService)

07-16 09:14:23.746 I/DEBUG (1970): property debug.db.uid not set; NOT waiting for gdb.

07-16 09:14:23.746 I/DEBUG (1970): HINT: adb shell setprop debug.db.uid 100000

07-16 09:14:23.746 I/DEBUG (1970): HINT: adb forward tcp:5039 tcp:5039

07-16 09:14:23.851 I/DEBUG (1970): *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** ***

07-16 09:14:23.851 I/DEBUG (1970): Build fingerprint: 'samsung/m0xx/m0:4.3/JSS15J/I9300XXUGMJ9:user/release-keys'

07-16 09:14:23.851 I/DEBUG (1970): Revision: '12'

07-16 09:14:23.851 I/DEBUG (1970): ABI: 'arm'

07-16 09:14:23.851 I/DEBUG (1970): pid: 2203, tid: 2243, name: SensorService >>> system_server <<<

07-16 09:14:23.851 I/DEBUG (1970): signal 6 (SIGABRT), code -6 (SI_TKILL), fault addr --------

07-16 09:14:23.916 I/DEBUG (1970): r0 00000000 r1 000008c3 r2 00000006 r3 00000000

07-16 09:14:23.916 I/DEBUG (1970): r4 54454db8 r5 00000006 r6 00000004 r7 0000010c

07-16 09:14:23.916 I/DEBUG (1970): r8 4247c5b0 r9 00000000 sl 00000000 fp 42764000

07-16 09:14:23.916 I/DEBUG (1970): ip 000008c3 sp 54454c08 lr 402668dd pc 40289b78 cpsr 60070010

07-16 09:14:23.916 I/DEBUG (1970):

07-16 09:14:23.916 I/DEBUG (1970): backtrace:

07-16 09:14:23.916 I/DEBUG (1970): #00 pc 00037b78 /system/lib/libc.so (tgkill+12)

07-16 09:14:23.916 I/DEBUG (1970): #01 pc 000148d9 /system/lib/libc.so (pthread_kill+52)

07-16 09:14:23.916 I/DEBUG (1970): #02 pc 0001563b /system/lib/libc.so (raise+10)

07-16 09:14:23.916 I/DEBUG (1970): #03 pc 00011da5 /system/lib/libc.so (__libc_android_abort+36)

07-16 09:14:23.916 I/DEBUG (1970): #04 pc 0001021c /system/lib/libc.so (abort+4)

07-16 09:14:23.916 I/DEBUG (1970): #05 pc 0000b96b /system/lib/libsensorservice.so

07-16 09:14:23.916 I/DEBUG (1970): #06 pc 0000ef35 /system/lib/libutils.so (android::Thread::_threadLoop(void*)+112)

07-16 09:14:23.916 I/DEBUG (1970): #07 pc 0005bb35 /system/lib/libandroid_runtime.so (android::AndroidRuntime::javaThreadShell(void*)+72)

07-16 09:14:23.916 I/DEBUG (1970): #08 pc 0000eaa5 /system/lib/libutils.so

07-16 09:14:23.916 I/DEBUG (1970): #09 pc 000140c7 /system/lib/libc.so (__pthread_start(void*)+30)

07-16 09:14:23.916 I/DEBUG (1970): #10 pc 0001210f /system/lib/libc.so (__start_thread+6)

07-16 09:14:34.561 I/DEBUG (1970):

07-16 09:14:34.561 I/DEBUG (1970): Tombstone written to: /data/tombstones/tombstone_02

Then after that:

07-16 09:14:56.356 I/ServiceManager(1965): service 'meminfo' died

07-16 09:14:56.356 I/ServiceManager(1965): service 'sensorservice' died

07-16 09:14:56.356 I/ServiceManager(1965): service 'gfxinfo' died

07-16 09:14:56.356 I/ServiceManager(1965): service 'dbinfo' died

07-16 09:14:56.356 I/ServiceManager(1965): service 'cpuinfo' died

07-16 09:14:56.356 I/ServiceManager(1965): service 'permission' died

07-16 09:14:56.356 I/ServiceManager(1965): service 'processinfo' died

07-16 09:14:56.356 I/ServiceManager(1965): service 'hardware' died

07-16 09:14:56.356 I/ServiceManager(1965): service 'battery' died

07-16 09:14:56.356 I/ServiceManager(1965): service 'usagestats' died

07-16 09:14:56.356 I/ServiceManager(1965): service 'webviewupdate' died

07-16 09:14:56.356 I/ServiceManager(1965): service 'scheduling_policy' died

07-16 09:14:56.356 I/ServiceManager(1965): service 'telephony.registry' died

07-16 09:14:56.356 I/ServiceManager(1965): service 'entropy' died

07-16 09:14:56.356 I/ServiceManager(1965): service 'account' died

07-16 09:14:56.356 I/ServiceManager(1965): service 'content' died

07-16 09:14:56.356 I/ServiceManager(1965): service 'vibrator' died

07-16 09:14:56.356 I/ServiceManager(1965): service 'consumer_ir' died

07-16 09:14:56.356 I/ServiceManager(1965): service 'alarm' died

07-16 09:14:56.356 I/ServiceManager(1965): service 'window' died

07-16 09:14:56.356 I/ServiceManager(1965): service 'input' died

07-16 09:14:56.356 I/ServiceManager(1965): service 'procstats' died

07-16 09:14:56.356 I/ServiceManager(1965): service 'batterystats' died

07-16 09:14:56.356 I/ServiceManager(1965): service 'appops' died

07-16 09:14:56.356 I/ServiceManager(1965): service 'power' died

07-16 09:14:56.356 I/ServiceManager(1965): service 'display' died

07-16 09:14:56.356 I/ServiceManager(1965): service 'user' died

07-16 09:14:56.356 I/ServiceManager(1965): service 'activity' died

07-16 09:14:56.356 I/ServiceManager(1965): service 'bluetooth_manager' died

07-16 09:14:56.356 I/ServiceManager(1965): service 'input_method' died

07-16 09:14:56.356 I/ServiceManager(1965): service 'accessibility' died

07-16 09:14:56.356 I/ServiceManager(1965): service 'print' died

07-16 09:14:56.356 I/ServiceManager(1965): service 'restrictions' died

07-16 09:14:56.356 I/ServiceManager(1965): service 'media_session' died

07-16 09:14:56.356 I/ServiceManager(1965): service 'themes' died

07-16 09:14:56.356 I/ServiceManager(1965): service 'killswitch' died

07-16 09:14:56.356 I/ServiceManager(1965): service 'media_router' died

07-16 09:14:56.356 I/ServiceManager(1965): service 'trust' died

07-16 09:14:56.356 I/ServiceManager(1965): service 'fingerprint' died

07-16 09:14:56.356 I/ServiceManager(1965): service 'cmhw' died

07-16 09:14:56.356 I/ServiceManager(1965): service 'launcherapps' died

07-16 09:14:56.356 I/ServiceManager(1965): service 'edgegestureservice' died

07-16 09:14:56.356 I/ServiceManager(1965): service 'media_projection' died

07-16 09:14:56.356 I/ServiceManager(1965): service 'imms' died

07-16 09:14:56.356 I/ServiceManager(1965): service 'mount' died

07-16 09:14:56.356 I/ServiceManager(1965): service 'lock_settings' died

07-16 09:14:56.356 I/ServiceManager(1965): service 'device_policy' died

07-16 09:14:56.356 I/ServiceManager(1965): service 'statusbar' died

07-16 09:14:56.356 I/ServiceManager(1965): service 'clipboard' died

07-16 09:14:56.356 I/ServiceManager(1965): service 'package' died

07-16 09:14:56.356 I/ServiceManager(1965): service 'torch' died

07-16 09:14:56.356 I/ServiceManager(1965): service 'network_management' died

07-16 09:14:56.356 I/ServiceManager(1965): service 'textservices' died

07-16 09:14:56.356 I/ServiceManager(1965): service 'network_score' died

07-16 09:14:56.356 I/ServiceManager(1965): service 'netstats' died

07-16 09:14:56.356 I/ServiceManager(1965): service 'netpolicy' died

07-16 09:14:56.356 I/ServiceManager(1965): service 'wifip2p' died

07-16 09:14:56.356 I/ServiceManager(1965): service 'wifi' died

07-16 09:14:56.356 I/ServiceManager(1965): service 'wifiscanner' died

07-16 09:14:56.356 I/ServiceManager(1965): service 'rttmanager' died

07-16 09:14:56.356 I/ServiceManager(1965): service 'connectivity' died

07-16 09:14:56.356 I/ServiceManager(1965): service 'servicediscovery' died

07-16 09:14:56.356 I/ServiceManager(1965): service 'updatelock' died

07-16 09:14:56.356 I/ServiceManager(1965): service 'notification' died

07-16 09:14:56.356 I/ServiceManager(1965): service 'devicestoragemonitor' died

07-16 09:14:56.356 I/ServiceManager(1965): service 'location' died

07-16 09:14:56.356 I/ServiceManager(1965): service 'country_detector' died

07-16 09:14:56.356 I/ServiceManager(1965): service 'search' died

07-16 09:14:56.356 I/ServiceManager(1965): service 'dropbox' died

07-16 09:14:56.356 I/ServiceManager(1965): service 'wallpaper' died

07-16 09:14:56.356 I/ServiceManager(1965): service 'profile' died

07-16 09:14:56.356 I/ServiceManager(1965): service 'audio' died

07-16 09:14:56.356 I/ServiceManager(1965): service 'DockObserver' died

07-16 09:14:56.356 I/ServiceManager(1965): service 'usb' died

07-16 09:14:56.356 I/ServiceManager(1965): service 'serial' died

07-16 09:14:56.356 I/ServiceManager(1965): service 'uimode' died

07-16 09:14:56.356 I/ServiceManager(1965): service 'jobscheduler' died

07-16 09:14:56.356 I/ServiceManager(1965): service 'backup' died

07-16 09:14:56.356 I/ServiceManager(1965): service 'appwidget' died

07-16 09:14:56.356 I/ServiceManager(1965): service 'voiceinteraction' died

07-16 09:14:56.356 I/ServiceManager(1965): service 'diskstats' died

07-16 09:14:56.356 I/ServiceManager(1965): service 'samplingprofiler' died

07-16 09:14:56.356 I/ServiceManager(1965): service 'commontime_management' died

07-16 09:14:56.356 I/ServiceManager(1965): service 'dreams' died

07-16 09:14:56.356 I/ServiceManager(1965): service 'assetatlas' died

07-16 09:14:56.356 I/ServiceManager(1965): service 'telecom' died

07-16 09:14:56.356 W/Sensors (3602): sensorservice died [0x538c3780]

07-16 09:14:56.356 W/Sensors (3260): sensorservice died [0x425e6580]

07-16 09:14:56.356 E/WifiManager(3602): Channel connection lost

07-16 09:14:56.356 W/Sensors (2366): sensorservice died [0x427629c0]

07-16 09:14:56.361 E/WifiManager(3260): Channel connection lost

07-16 09:14:56.361 E/WifiManager(2366): Channel connection lost

07-16 09:14:56.366 D/SurfaceFlinger(1967): Set power mode=2, type=0 flinger=0x40c82000

07-16 09:14:56.626 W/UserManager(4212): Could not get serial number for user 0

07-16 09:14:56.626 W/UserManager(4212): Could not get serial number for user 0

07-16 09:14:56.626 W/UserManager(4212): Could not get serial number for user 0

07-16 09:14:57.351 E/WifiManager(2850): Channel connection lost

07-16 09:14:57.386 E/WifiManager(2951): Channel connection lost

07-16 09:14:57.476 I/Choreographer(2366): Skipped 34 frames! The application may be doing too much work on its main thread.

07-16 09:14:57.496 D/AndroidRuntime(4614): Shutting down VM

.... and a lot more after that.

This particular logcat is from the latest nightly (20150625-1222), but it also happens on the latest official (20150714-1120); same "operation not permitted" error just prior to SIGABRT.

It seems to happen fairly randomly, including when the phone is just lying on the desk. It usally crashes 3-6 times a day; very annoying.

Does anyone have some advice?

Edit: BTW, I started on that first line because the "suspending all threads took: ... ms" message appears to show up just before this every time; sometimes essentially the same millisecond, sometimes a few seconds earlier (up to 30, perhaps?).