D/AndroidRuntime(11752):
D/AndroidRuntime(11752): >>>>>> AndroidRuntime START com.android.internal.os.RuntimeInit <<<<<<
D/AndroidRuntime(11752): CheckJNI is ON
D/dalvikvm(11752): creating instr width table
E/jdwp (11752): pipe failed
W/ProcessState(11752): Opening '/dev/binder' failed: Too many open files
D/AndroidRuntime(11752): Calling main entry com.android.commands.am.Am
I/Mamarduke_Diag( 1726): Data is available now.
I/Mamarduke_Diag( 1726): exec result -->>> java.lang.NullPointerException
I/DMIC ( 1726): ---> java.lang.NullPointerException
I/System.out( 1726): *****wifi state end=1
D/dalvikvm( 1726): GC_EXPLICIT freed 31K, 41% free 7507K/12551K, external 1625K/2137K, paused 58ms
D/dalvikvm( 1726): GC_EXPLICIT freed 0K, 41% free 7507K/12551K, external 1625K/2137K, paused 58ms
I/System.out( 1726): ***run in test i=7,camera
I/System.out( 1726): ***run in test i=8,cec
I/System.out( 1726): ***run in test i=9,edid
I/System.out( 1726): *****wifi state start=1
I/Mamarduke_Diag( 1726): Data is available now.
I/Mamarduke_Diag( 1726): exec result -->>>
I/System.out( 1726): *****wifi state end=1
D/dalvikvm( 1726): GC_EXPLICIT freed 36K, 41% free 7474K/12551K, external 1625K/2137K, paused 57ms
D/dalvikvm( 1726): GC_EXPLICIT freed 0K, 41% free 7474K/12551K, external 1625K/2137K, paused 58ms
I/System.out( 1726): ***run in test i=10,iris
I/System.out( 1726): *****wifi state start=1
I/ActivityManager( 1491): Starting: Intent { act=com.android.camera.irison flg=0x10000000 cmp=com.ianc.apd/.testcase.cameraex.ImageCamera } from pid 1726
I/System.out( 1726): onCreate
I/System.out( 1726): onResume
I/System.out( 1726): test irist on
I/System.out( 1726): excuteCmd/sys/bus/spi/devices/spi2.0/irisstate
E/InputDispatcher( 1491): channel '40643898 com.ianc.apd/com.ianc.apd.testcase.cameraex.ImageCamera (server)' ~ Consumer closed input channel or an error occurred. events=0x8
E/InputDispatcher( 1491): channel '40643898 com.ianc.apd/com.ianc.apd.testcase.cameraex.ImageCamera (server)' ~ Channel is unrecoverably broken and will be disposed!
D/AndroidRuntime( 1726): Shutting down VM
W/dalvikvm( 1726): threadid=1: thread exiting with uncaught exception (group=0x40015560)
I/WindowManager( 1491): WINDOW DIED Window{40643898 com.ianc.apd/com.ianc.apd.testcase.cameraex.ImageCamera paused=false}
E/AndroidRuntime( 1726): FATAL EXCEPTION: main
E/AndroidRuntime( 1726): java.lang.RuntimeException: Could not read input channel file descriptors from parcel.
E/AndroidRuntime( 1726): at android.view.InputChannel.nativeReadFromParcel(Native Method)
E/AndroidRuntime( 1726): at android.view.InputChannel.readFromParcel(InputChannel.java:138)
E/AndroidRuntime( 1726): at android.view.IWindowSession$Stub$Proxy.add(IWindowSession.java:409)
E/AndroidRuntime( 1726): at android.view.ViewRoot.setView(ViewRoot.java:498)
E/AndroidRuntime( 1726): at android.view.WindowManagerImpl.addView(WindowManagerImpl.java:177)
E/AndroidRuntime( 1726): at android.view.WindowManagerImpl.addView(WindowManagerImpl.java:91)
E/AndroidRuntime( 1726): at android.view.Window$LocalWindowManager.addView(Window.java:424)
E/AndroidRuntime( 1726): at android.app.ActivityThread.handleResumeActivity(ActivityThread.java:2170)
E/AndroidRuntime( 1726): at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:1668)
E/AndroidRuntime( 1726): at android.app.ActivityThread.access$1500(ActivityThread.java:117)
E/AndroidRuntime( 1726): at android.app.ActivityThread$H.handleMessage(ActivityThread.java:931)
E/AndroidRuntime( 1726): at android.os.Handler.dispatchMessage(Handler.java:99)
E/AndroidRuntime( 1726): at android.os.Looper.loop(Looper.java:130)
E/AndroidRuntime( 1726): at android.app.ActivityThread.main(ActivityThread.java:3683)
E/AndroidRuntime( 1726): at java.lang.reflect.Method.invokeNative(Native Method)
E/AndroidRuntime( 1726): at java.lang.reflect.Method.invoke(Method.java:507)
E/AndroidRuntime( 1726): at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:839)
E/AndroidRuntime( 1726): at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:597)
E/AndroidRuntime( 1726): at dalvik.system.NativeStart.main(Native Method)
W/ActivityManager( 1491): Force finishing activity com.ianc.apd/.testcase.cameraex.ImageCamera
W/ActivityManager( 1491): Activity pause timeout for HistoryRecord{4069a248 com.ianc.apd/.testcase.cameraex.ImageCamera}
Why do Consumer closed input channel or an error occurred. events=0x8多次运行后会出现这种情况吗？也就是说，我的程序一开始可以运行，但是运行多次后，就会出现异常。
我读到了这个：，但我不知道如何解决！谁能帮我？
我在真实设备中运行我的程序。安卓版本是2.3
更新1：
我找到了根本原因Could not read input channel file descriptors from parcel.
It is E/jdwp (11752): pipe failed.
为什么创建管道失败？因为管道超出了系统中的最大值。也就是说，我们在系统中创建了很多管道或者文件描述符。然后我们找到了原因并尝试修改它：我的朋友在他的Activity中更改了这样的代码：`原始源代码：
private class MyHandler extends Handler {
MyHandler(Looper looper) {
super(looper);
}
@Override
public void handleMessage(Message msg) {
switch(msg.what) {
case RELEASE_CAMERA:
synchronized (CameraHolder.this) {
// In 'CameraHolder.open', the 'RELEASE_CAMERA' message
// will be removed if it is found in the queue. However,
// there is a chance that this message has been handled
// before being removed. So, we need to add a check
// here:
if (CameraHolder.this.mUsers == 0) releaseCamera();
}
break;
}
}
}
...
HandlerThread ht = new HandlerThread("CameraHolder");
ht.start();
mHandler = new MyHandler(ht.getLooper());
改成
private class MyHandler extends Handler {
MyHandler(Looper looper) {
super(looper);
}
@Override
public void handleMessage(Message msg) {
switch(msg.what) {
case RELEASE_CAMERA:
synchronized (CameraHolder.this) {
// In 'CameraHolder.open', the 'RELEASE_CAMERA' message
// will be removed if it is found in the queue. However,
// there is a chance that this message has been handled
// before being removed. So, we need to add a check
// here:
if (CameraHolder.this.mUsers == 0) releaseCamera();
}
break;
}
}
}
mHandler = new MyHandler();
这些文件描述符将会明显减少。为什么？如何解释这个案例？我添加mHandler.removemessage这个函数在我的 Activity 中的 onPause 中。而且那些文件描述符也明显减少了。为什么？谁能帮我解释一下这个案例？我正在尝试理解这一点。
