[Galaxy S III I9305 (4G LTE + 2GB RAM) Android Deve] xterm1:
So I have logs from soft reboot. Looks like power saving problem or MALI problem.

12-02 22:07:07.701 2370 2547 I PowerManagerService: Waking up from sleep (uid 1000)...
12-02 22:07:07.701 2370 2547 D lights : set_light_buttons: 1
12-02 22:07:07.701 2370 2370 V KeyguardServiceDelegate: onStartedWakingUp()
12-02 22:07:07.705 2605 2605 W FingerprintManager: isFingerprintHardwareDetected(): Service not connected!
12-02 22:07:07.710 2370 2473 I DisplayPowerController: Blocking screen on until initial contents have been drawn.
12-02 22:07:07.714 2370 2370 I ActivityManager: Killing 3201:com.android.keychain/1000 (adj 906): empty #17
12-02 22:07:07.716 2370 2473 V KeyguardServiceDelegate: onScreenTurnedOn(showListener = com.android.server.policy.PhoneWindowManager$2@9c50022)
12-02 22:07:07.731 2370 3207 D ActivityManager: cleanUpApplicationRecord -- 3201
12-02 22:07:07.750 2370 2904 V KeyguardServiceDelegate: **** SHOWN CALLED ****
12-02 22:07:08.048 2370 2586 D PowerManagerService-JNI: Excessive delay in autosuspend_disable() while turning screen on: 326ms
12-02 22:07:08.049 2370 2859 W art : Long monitor contention with owner PhotonicModulator (2586) at void com.android.server.power.PowerManagerService$1.onDisplayStateChange(int)(PowerManagerService.java:2432) waiters=0 in void com.android.server.power.PowerManagerService.acquireWakeLockInternal(android.os.IBinder, int, java.lang.String, java.lang.String, android.os.WorkSource, java.lang.String, int, int) for 324ms
12-02 22:07:08.049 2059 2059 D SurfaceFlinger: Set power mode=2, type=0 flinger=0x409a9000
12-02 22:07:08.050 2370 2414 W art : Long monitor contention with owner PhotonicModulator (2586) at void com.android.server.power.PowerManagerService$1.onDisplayStateChange(int)(PowerManagerService.java:2432) waiters=1 in void com.android.server.power.PowerManagerService.setScreenBrightnessOverrideFromWindowManagerInternal(int) for 298ms
12-02 22:07:08.052 2370 2414 I DisplayManagerService: Display device changed state: "Wbudowany ekran", ON
12-02 22:07:08.052 2370 2905 W art : Long monitor contention with owner android.display (2414) at void com.android.server.wm.WindowManagerService$H.handleMessage(android.os.Message)(WindowManagerService.java:8289) waiters=0 in void com.android.server.wm.WindowManagerService.finishDrawingWindow(com.android.server.wm.Session, android.view.IWindow) for 258ms
12-02 22:07:08.071 2370 2392 I iNemoSensor: enable(): handle(0), en(1), what(0)
12-02 22:07:08.071 2370 2392 D AkmSensor: akm_enable_sensor: Accel is enabled. (orien = 0)
12-02 22:07:08.071 2370 2392 I AkmSensor: enable_accelerometer, mEnabled = 0, enable = 1
12-02 22:07:08.077 2370 2523 I AkmSensor: enabled = 2, shutdown = 0
12-02 22:07:08.077 2370 2392 D iNemoSensor: enable(): MASK_ACC (1) MASK_MAG (0) MASK_GYR (0), MASK_UMAG(0)
12-02 22:07:08.077 2370 2392 D iNemoSensor: enable(): mEnAcc(1) mEnMag(0) mEnGyr(0), mEUMag(0)
12-02 22:07:08.077 2370 2392 I iNemoSensor: skip update_delay wanted_accel = -1 current delay = -1
12-02 22:07:08.077 2370 2392 D iNemoSensor: setDelay(): handle(0), en(66667000)
12-02 22:07:08.078 2370 2392 I iNemoSensor: update_delay wanted_accel = 66667000
12-02 22:07:08.080 2370 2473 I DisplayPowerController: Unblocked screen on after 370 ms
12-02 22:07:08.083 2370 2473 V KeyguardServiceDelegate: onScreenTurnedOn()
12-02 22:07:09.146 2370 2547 I PowerManagerService: Going to sleep due to power button (uid 1000)...
12-02 22:07:09.154 2605 2605 W FingerprintManager: isFingerprintHardwareDetected(): Service not connected!
12-02 22:07:09.550 2370 2547 I PowerManagerService: Waking up from dozing (uid 1000)...
12-02 22:07:09.552 2370 2370 I iNemoSensor: enable(): handle(0), en(0), what(0)
12-02 22:07:09.552 2370 2370 D AkmSensor: akm_disable_sensor: Accel is disabled. (orien = 0)
12-02 22:07:09.552 2370 2370 I AkmSensor: enable_accelerometer, mEnabled = 1, enable = 0
12-02 22:07:09.552 2370 2370 D iNemoSensor: enable(): MASK_ACC (0) MASK_MAG (0) MASK_GYR (0), MASK_UMAG(0)
12-02 22:07:09.552 2370 2370 D iNemoSensor: enable(): mEnAcc(0) mEnMag(0) mEnGyr(0), mEUMag(0)
12-02 22:07:09.558 2370 2370 I iNemoSensor: enable(): handle(0), en(1), what(0)
12-02 22:07:09.558 2370 2370 D AkmSensor: akm_enable_sensor: Accel is enabled. (orien = 0)
12-02 22:07:09.558 2370 2370 I AkmSensor: enable_accelerometer, mEnabled = 0, enable = 1
12-02 22:07:09.559 2370 2370 D iNemoSensor: enable(): MASK_ACC (1) MASK_MAG (0) MASK_GYR (0), MASK_UMAG(0)
12-02 22:07:09.559 2370 2370 D iNemoSensor: enable(): mEnAcc(1) mEnMag(0) mEnGyr(0), mEUMag(0)
12-02 22:07:09.559 2370 2370 I iNemoSensor: skip update_delay wanted_accel = -1 current delay = -1
12-02 22:07:09.559 2370 2370 D iNemoSensor: setDelay(): handle(0), en(66667000)
12-02 22:07:09.559 2370 2370 I iNemoSensor: update_delay wanted_accel = 66667000
12-02 22:07:09.560 2370 2370 V KeyguardServiceDelegate: onStartedWakingUp()
12-02 22:07:09.599 2605 2605 D PhoneStatusBar: disable: < expand ICONS alerts SYSTEM_INFO back HOME RECENT clock SEARCH quick_settings >
12-02 22:07:09.605 2605 2605 W FingerprintManager: isFingerprintHardwareDetected(): Service not connected!
12-02 22:07:09.616 2605 2605 W FingerprintManager: isFingerprintHardwareDetected(): Service not connected!
12-02 22:07:09.647 2605 2605 W FingerprintManager: isFingerprintHardwareDetected(): Service not connected!
12-02 22:07:09.651 2605 2605 W FingerprintManager: isFingerprintHardwareDetected(): Service not connected!
12-02 22:07:09.688 2370 2473 F libc : Fatal signal 11 (SIGSEGV), code 1, fault addr 0x15 in tid 2473 (PowerManagerSer)
12-02 22:07:09.689 2113 2113 W : debuggerd: handling request: pid=2370 uid=1000 gid=1000 tid=2473
12-02 22:07:09.716 3635 3635 F DEBUG : *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** ***
12-02 22:07:09.716 3635 3635 F DEBUG : CM Version: 'unknown'
12-02 22:07:09.716 3635 3635 F DEBUG : Build fingerprint: 'samsung/m3xx/m3:4.1.2/JZO54K/I9305XXBMA6:user/release-keys'
12-02 22:07:09.716 3635 3635 F DEBUG : Revision: '0'
12-02 22:07:09.716 3635 3635 F DEBUG : ABI: 'arm'
12-02 22:07:09.716 3635 3635 F DEBUG : pid: 2370, tid: 2473, name: PowerManagerSer >>> system_server <<<
12-02 22:07:09.716 3635 3635 F DEBUG : signal 11 (SIGSEGV), code 1 (SEGV_MAPERR), fault addr 0x15
12-02 22:07:09.716 3635 3635 F DEBUG : r0 00000002 r1 5d886528 r2 00000004 r3 42cf4a40
12-02 22:07:09.716 3635 3635 F DEBUG : r4 5d891100 r5 00000000 r6 5d891100 r7 68553328
12-02 22:07:09.716 3635 3635 F DEBUG : r8 00000001 r9 00000001 sl 00000000 fp 6f62c008
12-02 22:07:09.716 3635 3635 F DEBUG : ip 00000001 sp 6067c0a8 lr 5be90ca0 pc 5be2ef2c cpsr 80030010
12-02 22:07:09.725 3635 3635 F DEBUG :
12-02 22:07:09.725 3635 3635 F DEBUG : backtrace:
12-02 22:07:09.725 3635 3635 F DEBUG : #00 pc 0000bf2c /system/lib/libMali.so
12-02 22:07:09.725 3635 3635 F DEBUG : #01 pc 0000cd4c /system/lib/libMali.so
12-02 22:07:09.725 3635 3635 F DEBUG : #02 pc 0005272c /system/lib/libMali.so
12-02 22:07:09.725 3635 3635 F DEBUG : #03 pc 0005348c /system/lib/libMali.so
12-02 22:07:09.725 3635 3635 F DEBUG : #04 pc 0004e4b0 /system/lib/libMali.so
12-02 22:07:09.725 3635 3635 F DEBUG : #05 pc 0004ecf8 /system/lib/libMali.so
12-02 22:07:09.725 3635 3635 F DEBUG : #06 pc 0004fd0c /system/lib/libMali.so (shim_eglMakeCurrent+176)
12-02 22:07:09.726 3635 3635 F DEBUG : #07 pc 0000a56b /system/lib/libEGL.so (_ZN7android13egl_display_t11makeCurrentEPNS_13egl_context_tES2_PvS3_S3_S3_S3_S3_+246)
12-02 22:07:09.726 3635 3635 F DEBUG : #08 pc 0000ccf3 /system/lib/libEGL.so (eglMakeCurrent+290)
12-02 22:07:09.726 3635 3635 F DEBUG : #09 pc 0006ba29 /system/lib/libandroid_runtime.so
12-02 22:07:09.726 3635 3635 F DEBUG : #10 pc 34b9ca7f /data/dalvik-cache/arm/system@framework@boot.oat (offset 0x27dc000)
12-02 22:07:12.695 2113 2113 E : debuggerd: worker process 3635 timed out
12-02 22:07:12.697 2113 2113 E : debuggerd: killing target 2370
12-02 22:07:12.738 2077 2077 E : eof
12-02 22:07:12.738 2077 2077 E : failed to read size
12-02 22:07:12.738 2077 2077 I : closing connection
12-02 22:07:12.746 2057 2057 I ServiceManager: service 'otadexopt' died
12-02 22:07:12.746 2057 2057 I ServiceManager: service 'user' died
12-02 22:07:12.746 2057 2057 I ServiceManager: service 'activity' died
12-02 22:07:12.746 2057 2057 I ServiceManager: service 'procstats' died
12-02 22:07:12.746 2057 2057 I ServiceManager: service 'meminfo' died
12-02 22:07:12.746 2057 2057 I ServiceManager: service 'gfxinfo' died
12-02 22:07:12.746 2057 2057 I ServiceManager: service 'dbinfo' died
12-02 22:07:12.746 2057 2057 I ServiceManager: service 'cpuinfo' died
12-02 22:07:12.746 2057 2057 I ServiceManager: service 'permission' died
12-02 22:07:12.746 2059 2059 D SurfaceFlinger: Set power mode=2, type=0 flinger=0x409a9000
12-02 22:07:12.746 2057 2057 I ServiceManager: service 'processinfo' died
12-02 22:07:12.746 2059 2059 D SurfaceFlinger: Screen type=0 is already mode=2
12-02 22:07:12.746 2057 2057 I ServiceManager: service 'sensorservice' died

And here are more "service died" till "bootanimation".

And it's not N problem - it can be found in older versions:

http://www.google.pl/search?q=Fatal+signal+11+(SIGSEGV),+code+1+(PowerManagerSer)

EDIT:

And again:

12-02 22:59:53.882 4119 4119 V PhoneStatusBar: setLightsOn(true)
12-02 22:59:53.886 4119 4119 V PhoneStatusBar: setLightsOn(true)
12-02 22:59:53.911 3905 3929 I iNemoSensor: enable(): handle(0), en(1), what(0)
12-02 22:59:53.911 3905 3929 D AkmSensor: akm_enable_sensor: Accel is enabled. (orien = 0)
12-02 22:59:53.911 3905 3929 I AkmSensor: enable_accelerometer, mEnabled = 0, enable = 1
12-02 22:59:53.912 3905 3929 D iNemoSensor: enable(): MASK_ACC (1) MASK_MAG (0) MASK_GYR (0), MASK_UMAG(0)
12-02 22:59:53.912 3905 3929 D iNemoSensor: enable(): mEnAcc(1) mEnMag(0) mEnGyr(0), mEUMag(0)
12-02 22:59:53.912 3905 3929 I iNemoSensor: skip update_delay wanted_accel = -1 current delay = -1
12-02 22:59:53.912 3905 3929 D iNemoSensor: setDelay(): handle(0), en(66667000)
12-02 22:59:53.912 3905 3929 I iNemoSensor: update_delay wanted_accel = 66667000
12-02 22:59:53.912 3905 4036 I AkmSensor: enabled = 2, shutdown = 0
12-02 22:59:53.913 3905 4022 I DisplayPowerController: Unblocked screen on after 374 ms
12-02 22:59:53.915 3905 4022 V KeyguardServiceDelegate: onScreenTurnedOn()
12-02 22:59:53.933 4119 4119 V PhoneStatusBar: setLightsOn(true)
12-02 22:59:58.915 3905 4022 D lights : set_light_buttons: 2
12-02 23:00:03.530 3905 4022 I PowerManagerService: Going to sleep due to screen timeout (uid 1000)...
12-02 23:00:03.535 4119 4119 W FingerprintManager: isFingerprintHardwareDetected(): Service not connected!
12-02 23:00:04.482 3905 4022 I iNemoSensor: enable(): handle(0), en(0), what(0)
12-02 23:00:04.482 3905 4022 D AkmSensor: akm_disable_sensor: Accel is disabled. (orien = 0)
12-02 23:00:04.482 3905 4022 I AkmSensor: enable_accelerometer, mEnabled = 1, enable = 0
12-02 23:00:04.482 3905 4022 D iNemoSensor: enable(): MASK_ACC (0) MASK_MAG (0) MASK_GYR (0), MASK_UMAG(0)
12-02 23:00:04.482 3905 4022 D iNemoSensor: enable(): mEnAcc(0) mEnMag(0) mEnGyr(0), mEUMag(0)
12-02 23:00:04.482 3905 4022 V KeyguardServiceDelegate: onScreenTurnedOff()
12-02 23:00:04.495 3905 4022 F libc : Fatal signal 11 (SIGSEGV), code 1, fault addr 0x720079 in tid 4022 (PowerManagerSer)
12-02 23:00:04.495 2113 2113 W : debuggerd: handling request: pid=3905 uid=1000 gid=1000 tid=4022
12-02 23:00:04.497 2113 2113 E : debuggerd: waitpid returned unexpected pid (0), committing murder-suicide
12-02 23:00:04.497 2113 2113 W : debuggerd: pid 0 received signal 9
12-02 23:00:04.497 2113 2113 E : debuggerd: killing target 3905
12-02 23:00:04.528 2059 2059 D SurfaceFlinger: Set power mode=2, type=0 flinger=0x409a9000
12-02 23:00:04.528 2059 2059 D SurfaceFlinger: Screen type=0 is already mode=2
12-02 23:00:04.528 3653 3653 W AudioFlinger: power manager service died !!!
12-02 23:00:04.528 2057 2057 I chatty : uid=1000(system) /system/bin/servicemanager expire 118 lines
12-02 23:00:04.531 4119 4152 W Sensors : sensorservice died [0x5bb96d40]
12-02 23:00:04.531 2077 2077 E : eof
12-02 23:00:04.531 2077 2077 E : failed to read size
12-02 23:00:04.531 2077 2077 I : closing connection
12-02 23:00:04.536 5696 5696 I : debuggerd: starting
12-02 23:00:04.760 2056 2056 I lowmemorykiller: ActivityManager disconnected
12-02 23:00:04.760 2056 2056 I lowmemorykiller: Closing Activity Manager data connection
12-02 23:00:05.288 5697 5703 D libEGL : loaded /system/lib/egl/libEGL_mali.so
12-02 23:00:05.293 5697 5703 D libEGL : loaded /system/lib/egl/libGLESv1_CM_mali.so
12-02 23:00:05.333 5697 5703 D libEGL : loaded /system/lib/egl/libGLESv2_mali.so
12-02 23:00:05.375 5697 5703 E : Device driver API match
12-02 23:00:05.375 5697 5703 E : Device driver API version: 29
12-02 23:00:05.375 5697 5703 E : User space API version: 29
12-02 23:00:05.375 5697 5703 E : mali: REVISION=Linux-r3p2-01rel3 BUILD_DATE=Tue Jul 22 19:59:34 KST 2014
12-02 23:00:05.379 5697 5703 E cutils-trace: Error opening trace file: No such file or directory (2)
12-02 23:00:05.445 5697 5703 E BootAnimation: Get Carrier Animation file,since it's not support carrier