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javaandroidmemory-managementdalviksamsung-mobile

Android does not release memory on 4.4.2 samsung

new to android i'm starting to loose my hair :

When i launch my app on a Samsung this is what i get each time an activity launches : 

 Pause GC
12-02 12:31:53.791: E/ActivityThread(10642): java.lang.reflect.InvocationTargetException
12-02 12:31:53.791: E/ActivityThread(10642):    at java.lang.reflect.Method.invokeNative(Native Method)
12-02 12:31:53.791: E/ActivityThread(10642):    at java.lang.reflect.Method.invoke(Method.java:515)
12-02 12:31:53.791: E/ActivityThread(10642):    at android.app.ActivityThread.pauseGC(ActivityThread.java:5525)
12-02 12:31:53.791: E/ActivityThread(10642):    at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2324)
12-02 12:31:53.791: E/ActivityThread(10642):    at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2471)
12-02 12:31:53.791: E/ActivityThread(10642):    at android.app.ActivityThread.access$900(ActivityThread.java:175)
12-02 12:31:53.791: E/ActivityThread(10642):    at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1308)
12-02 12:31:53.791: E/ActivityThread(10642):    at android.os.Handler.dispatchMessage(Handler.java:102)
12-02 12:31:53.791: E/ActivityThread(10642):    at android.os.Looper.loop(Looper.java:146)
12-02 12:31:53.791: E/ActivityThread(10642):    at android.app.ActivityThread.main(ActivityThread.java:5602)
12-02 12:31:53.791: E/ActivityThread(10642):    at java.lang.reflect.Method.invokeNative(Native Method)
12-02 12:31:53.791: E/ActivityThread(10642):    at java.lang.reflect.Method.invoke(Method.java:515)
12-02 12:31:53.791: E/ActivityThread(10642):    at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:1283)
12-02 12:31:53.791: E/ActivityThread(10642):    at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:1099)
12-02 12:31:53.791: E/ActivityThread(10642):    at dalvik.system.NativeStart.main(Native Method)
12-02 12:31:53.791: E/ActivityThread(10642): Caused by: java.lang.UnsatisfiedLinkError: Native method not found: dalvik.system.VMRuntime.pauseGc:(Ljava/lang/String;)I
12-02 12:31:53.791: E/ActivityThread(10642):    at dalvik.system.VMRuntime.pauseGc(Native Method)
12-02 12:31:53.791: E/ActivityThread(10642):    ... 15 more

This means (i think) the memory is not released so app crash when you use the app for a long time. I do not know what to say to my customer... Any help ? Thank you

Solution

  • It's a bug on Samsung. Look here:

    Yeah, i don't think we ever had a VMRuntime.pauseGC method. (and even if we did, VMRuntime and its methods are not public.)

    And check this answer. Seems like this is Samsung bug.