[Sony Ericsson Xperia Neo, Pro] Eichhorn37:
I reflashed the stock ROM and your kernel, but still:

F/BatteryStatsImpl( 326): problem reading network stats
F/BatteryStatsImpl( 326): java.lang.IllegalStateException: problem parsing idx 1
F/BatteryStatsImpl( 326):	at com.android.internal.net.NetworkStatsFactory.readNetworkStatsDetail(NetworkStatsFactory.java:319)
F/BatteryStatsImpl( 326):	at com.android.internal.net.NetworkStatsFactory.readNetworkStatsDetail(NetworkStatsFactory.java:266)
F/BatteryStatsImpl( 326):	at com.android.internal.os.BatteryStatsImpl.getNetworkStatsDetailGroupedByUid(BatteryStatsImpl.java:5734)
F/BatteryStatsImpl( 326):	at com.android.internal.os.BatteryStatsImpl.access$100(BatteryStatsImpl.java:76)
F/BatteryStatsImpl( 326):	at com.android.internal.os.BatteryStatsImpl$Uid.computeCurrentTcpBytesReceived(BatteryStatsImpl.java:2457)
F/BatteryStatsImpl( 326):	at com.android.internal.os.BatteryStatsImpl$Uid.getTcpBytesReceived(BatteryStatsImpl.java:2446)
F/BatteryStatsImpl( 326):	at com.android.internal.os.BatteryStatsImpl.writeSummaryToParcel(BatteryStatsImpl.java:5437)
F/BatteryStatsImpl( 326):	at com.android.internal.os.BatteryStatsImpl.writeLocked(BatteryStatsImpl.java:4836)
F/BatteryStatsImpl( 326):	at com.android.internal.os.BatteryStatsImpl.writeAsyncLocked(BatteryStatsImpl.java:4818)
F/BatteryStatsImpl( 326):	at com.android.server.am.ActivityManagerService.updateCpuStatsNow(ActivityManagerService.java:1681)
F/BatteryStatsImpl( 326):	at com.android.server.am.ActivityManagerService$3.run(ActivityManagerService.java:1563)
F/BatteryStatsImpl( 326): Caused by: java.io.FileNotFoundException: /proc/net/xt_qtaguid/stats: open failed: ENOENT (No such file or directory)
F/BatteryStatsImpl( 326):	at libcore.io.IoBridge.open(IoBridge.java:419)
F/BatteryStatsImpl( 326):	at java.io.FileInputStream.<init>(FileInputStream.java:78)
F/BatteryStatsImpl( 326):	at com.android.internal.net.NetworkStatsFactory.readNetworkStatsDetail(NetworkStatsFactory.java:288)
F/BatteryStatsImpl( 326):	... 10 more
F/BatteryStatsImpl( 326): Caused by: libcore.io.ErrnoException: open failed: ENOENT (No such file or directory)
F/BatteryStatsImpl( 326):	at libcore.io.Posix.open(Native Method)
F/BatteryStatsImpl( 326):	at libcore.io.BlockGuardOs.open(BlockGuardOs.java:110)
F/BatteryStatsImpl( 326):	at libcore.io.IoBridge.open(IoBridge.java:403)
F/BatteryStatsImpl( 326):	... 12 more
D/dalvikvm(24086): GC_CONCURRENT freed 169K, 3% free 9142K/9351K, paused 2ms+3ms
I/ActivityThread(24086): Pub com.google.android.maps.SearchHistoryProvider: com.google.googlenav.provider.SearchHistoryProvider
I/ActivityThread(24086): Pub com.google.android.maps.LayerInfoProvider: com.google.googlenav.layer.LayerInfoProvider
I/ActivityThread(24086): Pub com.google.android.maps.TrafficAppWidgetProvider: com.google.googlenav.appwidget.traffic.TrafficAppWidgetProvider
I/ActivityThread(24086): Pub com.google.android.maps.SuggestionProvider: com.google.googlenav.suggest.android.SuggestProvider
I/Process ( 326): Sending signal. PID: 326 SIG: 3
I/dalvikvm( 326): threadid=3: reacting to signal 3
I/dalvikvm( 326): Wrote stack traces to '/data/anr/traces.txt'
I/Process ( 326): Sending signal. PID: 326 SIG: 3
W/Watchdog( 326): WATCHDOG PROBLEM IN SYSTEM SERVER: com.android.server.PowerManagerService
I/dalvikvm( 326): threadid=3: reacting to signal 3
I/dalvikvm( 326): Wrote stack traces to '/data/anr/traces.txt'
I/Process ( 326): Sending signal. PID: 472 SIG: 3
I/dalvikvm( 472): threadid=3: reacting to signal 3
I/dalvikvm( 472): Wrote stack traces to '/data/anr/traces.txt'
I/Watchdog_N( 326): dumpKernelStacks
I/Process ( 326): Sending signal. PID: 326 SIG: 9
W/Watchdog( 326): *** WATCHDOG KILLING SYSTEM PROCESS: com.android.server.PowerManagerService
D/kernel ( 165): [ 3693.815582] binder: release 326:480 transaction 556144 in, still active
D/kernel ( 165): [ 3693.815582] binder: send failed reply for transaction 556144 to 16424:16477
D/kernel ( 165): [ 3693.815612] binder: release 326:642 transaction 556041 in, still active
D/kernel ( 165): [ 3693.815643] binder: send failed reply for transaction 556041 to 24086:24086
D/kernel ( 165): [ 3693.815643] binder: release 326:3115 transaction 556036 in, still active
D/kernel ( 165): [ 3693.815673] binder: send failed reply for transaction 556036 to 23392:23392
W/AudioFlinger( 173): power manager service died !!!
W/Sensors (22356): sensorservice died [0x1f0510]
W/Sensors ( 1605): sensorservice died [0x294ec0]
W/Sensors ( 472): sensorservice died [0x1fbf00]
I/ServiceManager( 144): service 'bluetooth_a2dp' died
I/ServiceManager( 144): service 'window' died
I/ServiceManager( 144): service 'package' died
I/ServiceManager( 144): service 'activity' died
I/ServiceManager( 144): service 'meminfo' died
I/ServiceManager( 144): service 'gfxinfo' died
I/ServiceManager( 144): service 'cpuinfo' died
I/ServiceManager( 144): service 'power' died
I/ServiceManager( 144): service 'batteryinfo' died
I/ServiceManager( 144): service 'telephony.registry' died
I/ServiceManager( 144): service 'usagestats' died
I/ServiceManager( 144): service 'bluetooth' died
I/ServiceManager( 144): service 'entropy' died
I/ServiceManager( 144): service 'permission' died
I/ServiceManager( 144): service 'sensorservice' died
I/ServiceManager( 144): service 'audio' died
I/ServiceManager( 144): service 'usb' died
I/ServiceManager( 144): service 'uimode' died
I/ServiceManager( 144): service 'backup' died
I/ServiceManager( 144): service 'appwidget' died
I/ServiceManager( 144): service 'diskstats' died
I/ServiceManager( 144): service 'samplingprofiler' died
I/ServiceManager( 144): service 'mount' died
I/ServiceManager( 144): service 'notification' died
I/ServiceManager( 144): service 'devicestoragemonitor' died
I/ServiceManager( 144): service 'location' died
I/ServiceManager( 144): service 'country_detector' died
I/ServiceManager( 144): service 'search' died
I/ServiceManager( 144): service 'dropbox' died
I/ServiceManager( 144): service 'wallpaper' died
I/ServiceManager( 144): service 'account' died
I/ServiceManager( 144): service 'connectivity' died
I/ServiceManager( 144): service 'throttle' died
I/ServiceManager( 144): service 'input_method' died
I/ServiceManager( 144): service 'wifip2p' died
I/ServiceManager( 144): service 'wifi' died
I/ServiceManager( 144): service 'accessibility' died
I/ServiceManager( 144): service 'device_policy' died
I/ServiceManager( 144): service 'statusbar' died
I/ServiceManager( 144): service 'clipboard' died
I/ServiceManager( 144): service 'network_management' died
I/ServiceManager( 144): service 'textservices' died
I/ServiceManager( 144): service 'netstats' died
I/ServiceManager( 144): service 'netpolicy' died
I/ServiceManager( 144): service 'content' died
I/ServiceManager( 144): service 'hardware' died
I/ServiceManager( 144): service 'battery' died
I/ServiceManager( 144): service 'vibrator' died
I/ServiceManager( 144): service 'alarm' died
I/ActivityThread(23259): Removing dead content provider: settings
I/ActivityThread(22356): Removing dead content provider: settings
I/ActivityThread(16553): Removing dead content provider: settings
I/ActivityThread( 8835): Removing dead content provider: settings
I/ActivityThread(23506): Removing dead content provider: settings
I/ActivityThread( 472): Removing dead content provider: settings
I/ActivityThread( 408): Removing dead content provider: settings
I/ActivityThread( 2996): Removing dead content provider: settings
D/kernel ( 165): [ 3693.828796] binder: 16424:16477 transaction failed 29189, size 80-4
D/kernel ( 165): [ 3693.828948] binder: 16424:16477 transaction failed 29189, size 76-0
D/kernel ( 165): [ 3693.829345] binder: 16424:16477 transaction failed 29189, size 396-0
E/SurfaceTexture( 149): [StatusBarExpanded] dequeueBuffer: SurfaceTexture has been abandoned!
I/ActivityThread(23560): Removing dead content provider: settings
I/ActivityThread( 455): Removing dead content provider: settings
I/ActivityThread(23579): Removing dead content provider: settings
I/ActivityThread(10028): Removing dead content provider: settings
I/ActivityThread(24035): Removing dead content provider: settings
E/SurfaceTextureClient( 408): dequeueBuffer failed (No such device)
E/installd( 155): eof
E/installd( 155): failed to read size
I/installd( 155): closing connection
D/kernel ( 165): [ 3693.879150] alarm_release: clear alarm, pending 0
D/kernel ( 165): [ 3693.879180] alarm_release: clear pending alarms d
I/ActivityThread(24086): Pub com.google.android.maps.LocalActivePlacesProvider: com.google.googlenav.provider.LocalActivePlacesProvider
I/ActivityThread(24086): Pub com.google.android.maps.StarredItemProvider: com.google.googlenav.provider.StarredItemProvider
E/ActivityThread(24086): Failed to find provider info for com.google.settings
E/ViewRootImpl( 408): IllegalArgumentException locking surface
E/ViewRootImpl( 408): java.lang.IllegalArgumentException
E/ViewRootImpl( 408):	at android.view.Surface.lockCanvasNative(Native Method)
E/ViewRootImpl( 408):	at android.view.Surface.lockCanvas(Surface.java:76)
E/ViewRootImpl( 408):	at android.view.ViewRootImpl.draw(ViewRootImpl.java:1945)
E/ViewRootImpl( 408):	at android.view.ViewRootImpl.performTraversals(ViewRootImpl.java:1634)
E/ViewRootImpl( 408):	at android.view.ViewRootImpl.handleMessage(ViewRootImpl.java:2442)
E/ViewRootImpl( 408):	at android.os.Handler.dispatchMessage(Handler.java:99)
E/ViewRootImpl( 408):	at android.os.Looper.loop(Looper.java:137)
E/ViewRootImpl( 408):	at android.app.ActivityThread.main(ActivityThread.java:4441)
E/ViewRootImpl( 408):	at java.lang.reflect.Method.invokeNative(Native Method)
E/ViewRootImpl( 408):	at java.lang.reflect.Method.invoke(Method.java:511)
E/ViewRootImpl( 408):	at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:784)
E/ViewRootImpl( 408):	at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:551)
E/ViewRootImpl( 408):	at dalvik.system.NativeStart.main(Native Method)
E/InputQueue-JNI( 408): channel '2c167040 TrackingView (client)' ~ Publisher closed input channel or an error occurred. events=0x8
E/InputQueue-JNI( 408): channel '2c3217f8 StatusBarExpanded (client)' ~ Publisher closed input channel or an error occurred. events=0x8
E/InputQueue-JNI( 408): channel '2c484668 com.android.systemui.ImageWallpaper (client)' ~ Publisher closed input channel or an error occurred. events=0x8
E/InputQueue-JNI( 408): channel '2c30f9b0 StatusBar (client)' ~ Publisher closed input channel or an error occurred. events=0x8
E/InputQueue-JNI( 408): channel '2c43b290 RecentsPanel (client)' ~ Publisher closed input channel or an error occurred. events=0x8
E/InputQueue-JNI(23259): channel '2c2a42b8 com.sonyericsson.android.socialphonebook/com.sonyericsson.android.socialphonebook.DialerEntryActivity (client)' ~ Publisher closed input channel or an error occurred. events=0x8
E/InputQueue-JNI( 2996): channel '2c1b1860 com.gau.go.launcherex/com.jiubang.ggheart.apps.desks.diy.GoLauncher (client)' ~ Publisher closed input channel or an error occurred. events=0x8
E/InputQueue-JNI( 472): channel '2c56f4c0 com.android.phone/com.android.phone.SemcInCallScreen (client)' ~ Publisher closed input channel or an error occurred. events=0x8
I/Zygote ( 150): Exit zygote because system server (326) has terminated
D/kernel ( 165): [ 3693.968231] device rmnet0 left promiscuous mode
E/kernel ( 165): [ 3693.969665] init: untracked pid 9683 exited
E/kernel ( 165): [ 3693.969696] init: untracked pid 14771 exited
E/kernel ( 165): [ 3693.969726] init: untracked pid 18400 exited

Seems to be connected to "BatteryStatsImpl" (although I have no idea what it is), also happens mostly after a change in power supply.