How can I get crash data (stack traces at least) from my Android application? At least when working on my own device being retrieved by cable, but ideally from any instance of my application running on the wild so that I can improve it and make it more solid.

How do I obtain crash-data from my Android application?

I am working on Linux with the GCC compiler. When my C++ program crashes I would like it to automatically generate a stacktrace.

My program is being run by many different users and it also runs on Linux, Windows and Macintosh (all versions are compiled using `gcc`).

I would like my program to be able to generate a stack trace when it crashes and the next time the user runs it, it will ask them if it is ok to send the stack trace to me so I can track down the problem. I can handle the sending the info to me but I don&#39;t know how to generate the trace string. Any ideas?


How to automatically generate a stacktrace when my program crashes

This crash has been a blocking issue I used the following steps to reproduce the issue:

 - Create a Cocoa Touch Framework project
 - Add a swift file and a class *Dog*
 - Build a framework for device
 - Create a Single View application in Swift
 - Import framework into app project
 - Instantiate swift class from the framework in ViewController
 - Build and run an app on the device

The app immediate crashed upon launching, here is console log:

    dyld: Library not loaded: @rpath/FrameworkTest03.framework/FrameworkTest03
      Referenced from: /var/mobile/Applications/FA6BAAC8-1AAD-49B4-8326-F30F66458CB6/FrameworkTest03App.app/FrameworkTest03App
      Reason: image not found

I have tried to build on iOS 7.1 and 8.0 devices, they both have the same crash. However, I can build an app and run on the simulator fine. Also, I am aware that I can change the framework to form *Required* to *Optional* in *Link Binary With Libraries*, but it did not completely resolve the problem, the app crashed when I create an instance of *Dog*. The behavior is different on the device and simulator, I suspect that we can&#39;t distribute a framework for the device using a beta version of Xcode. Can anyone shed light on this?

iOS app with framework crashed on device, dyld: Library not loaded, Xcode 6 Beta

Today I ran my script for filesystem indexing to refresh RAID files index and after 4h it crashed with following error:

    [md5:]  241613/241627 97.5%  
    [md5:]  241614/241627 97.5%  
    [md5:]  241625/241627 98.1%
    Creating missing list... (79570 files missing)
    Creating new files list... (241627 new files)

    &lt;--- Last few GCs ---&gt;

    11629672 ms: Mark-sweep 1174.6 (1426.5) -&gt; 1172.4 (1418.3) MB, 659.9 / 0 ms [allocation failure] [GC in old space requested].
    11630371 ms: Mark-sweep 1172.4 (1418.3) -&gt; 1172.4 (1411.3) MB, 698.9 / 0 ms [allocation failure] [GC in old space requested].
    11631105 ms: Mark-sweep 1172.4 (1411.3) -&gt; 1172.4 (1389.3) MB, 733.5 / 0 ms [last resort gc].
    11631778 ms: Mark-sweep 1172.4 (1389.3) -&gt; 1172.4 (1368.3) MB, 673.6 / 0 ms [last resort gc].


    &lt;--- JS stacktrace ---&gt;

    ==== JS stack trace =========================================

    Security context: 0x3d1d329c9e59 &lt;JS Object&gt;
    1: SparseJoinWithSeparatorJS(aka SparseJoinWithSeparatorJS) [native array.js:~84] [pc=0x3629ef689ad0] (this=0x3d1d32904189 &lt;undefined&gt;,w=0x2b690ce91071 &lt;JS Array[241627]&gt;,L=241627,M=0x3d1d329b4a11 &lt;JS Function ConvertToString (SharedFunctionInfo 0x3d1d3294ef79)&gt;,N=0x7c953bf4d49 &lt;String[4]\: ,\n  &gt;)
    2: Join(aka Join) [native array.js:143] [pc=0x3629ef616696] (this=0x3d1d32904189 &lt;undefin...

    FATAL ERROR: CALL_AND_RETRY_LAST Allocation failed - JavaScript heap out of memory
     1: node::Abort() [/usr/bin/node]
     2: 0xe2c5fc [/usr/bin/node]
     3: v8::Utils::ReportApiFailure(char const*, char const*) [/usr/bin/node]
     4: v8::internal::V8::FatalProcessOutOfMemory(char const*, bool) [/usr/bin/node]
     5: v8::internal::Factory::NewRawTwoByteString(int, v8::internal::PretenureFlag) [/usr/bin/node]
     6: v8::internal::Runtime_SparseJoinWithSeparator(int, v8::internal::Object**, v8::internal::Isolate*) [/usr/bin/node]
     7: 0x3629ef50961b

Server is equipped with 16gb RAM and 24gb SSD swap. I highly doubt my script exceeded 36gb of memory. At least it shouldn&#39;t

Script creates index of files stored as Array of Objects with files metadata (modification dates, permissions, etc, no big data)

Here&#39;s full script code:
http://pastebin.com/mjaD76c3

I&#39;ve already experiend weird node issues in the past with this script what forced me eg. split index into multiple files as node was glitching when working on such big files as String. Is there any way to improve nodejs memory management with huge datasets?

Node.js heap out of memory

I&#39;m trying to make a Python program that interfaces with a different crashy process (that&#39;s out of my hands). Unfortunately the program I&#39;m interfacing with doesn&#39;t even crash reliably! So I want to make a quick C++ program that crashes on purpose but I don&#39;t actually know the best and shortest way to do that, does anyone know what to put between my:

    int main() {
        crashyCodeGoesHere();
    }


to make my C++ program crash reliably

What is the easiest way to make a C++ program crash?

I&#39;ve submitted three versions of my app onto the App Store using the Build and Archive commands. But... Where are those archives?  

I&#39;ve just learnt that I just need them to be able to read crashlogs.  My `~/Library/Developer/Xcode/Archives` folder is empty (in fact there is one xarchive file inside it I&#39;ve just generated now to test a crashlog reading).

Spotlight does not find any .xarchive.

I never been asked to delete or clear anything else than my project builds (Product - clean) when coding next version.

Xcode - But... Where are our archives?

I am trying a sample with [Room Persistence Library][1].
I created an Entity:

    @Entity
    public class Agent {
        @PrimaryKey
        public String guid;
        public String name;
        public String email;
        public String password;
        public String phone;
        public String licence;
    }

Created a DAO class:

    @Dao
    public interface AgentDao {
        @Query(&quot;SELECT COUNT(*) FROM Agent where email = :email OR phone = :phone OR licence = :licence&quot;)
        int agentsCount(String email, String phone, String licence);
    
        @Insert
        void insertAgent(Agent agent);
    }

Created the Database class:

    @Database(entities = {Agent.class}, version = 1)
    public abstract class AppDatabase extends RoomDatabase {
        public abstract AgentDao agentDao();
    }

Exposed database using below subclass in Kotlin:

    class MyApp : Application() {
    
        companion object DatabaseSetup {
            var database: AppDatabase? = null
        }
    
        override fun onCreate() {
            super.onCreate()
            MyApp.database =  Room.databaseBuilder(this, AppDatabase::class.java, &quot;MyDatabase&quot;).build()
        }
    }

Implemented below function in my activity:

    void signUpAction(View view) {
            String email = editTextEmail.getText().toString();
            String phone = editTextPhone.getText().toString();
            String license = editTextLicence.getText().toString();
    
            AgentDao agentDao = MyApp.DatabaseSetup.getDatabase().agentDao();
            //1: Check if agent already exists
            int agentsCount = agentDao.agentsCount(email, phone, license);
            if (agentsCount &gt; 0) {
                //2: If it already exists then prompt user
                Toast.makeText(this, &quot;Agent already exists!&quot;, Toast.LENGTH_LONG).show();
            }
            else {
                Toast.makeText(this, &quot;Agent does not exist! Hurray :)&quot;, Toast.LENGTH_LONG).show();
                onBackPressed();
            }
        }

Unfortunately on execution of above method it crashes with below stack trace:

        FATAL EXCEPTION: main
     Process: com.example.me.MyApp, PID: 31592
    java.lang.IllegalStateException: Could not execute method for android:onClick
        at android.support.v7.app.AppCompatViewInflater$DeclaredOnClickListener.onClick(AppCompatViewInflater.java:293)
        at android.view.View.performClick(View.java:5612)
        at android.view.View$PerformClick.run(View.java:22288)
        at android.os.Handler.handleCallback(Handler.java:751)
        at android.os.Handler.dispatchMessage(Handler.java:95)
        at android.os.Looper.loop(Looper.java:154)
        at android.app.ActivityThread.main(ActivityThread.java:6123)
        at java.lang.reflect.Method.invoke(Native Method)
        at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:867)
        at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:757)
     Caused by: java.lang.reflect.InvocationTargetException
        at java.lang.reflect.Method.invoke(Native Method)
        at android.support.v7.app.AppCompatViewInflater$DeclaredOnClickListener.onClick(AppCompatViewInflater.java:288)
        at android.view.View.performClick(View.java:5612)&#160;
        at android.view.View$PerformClick.run(View.java:22288)&#160;
        at android.os.Handler.handleCallback(Handler.java:751)&#160;
        at android.os.Handler.dispatchMessage(Handler.java:95)&#160;
        at android.os.Looper.loop(Looper.java:154)&#160;
        at android.app.ActivityThread.main(ActivityThread.java:6123)&#160;
        at java.lang.reflect.Method.invoke(Native Method)&#160;
        at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:867)&#160;
        at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:757)&#160;
     Caused by: java.lang.IllegalStateException: Cannot access database on the main thread since it may potentially lock the UI for a long periods of time.
        at android.arch.persistence.room.RoomDatabase.assertNotMainThread(RoomDatabase.java:137)
        at android.arch.persistence.room.RoomDatabase.query(RoomDatabase.java:165)
        at com.example.me.MyApp.RoomDb.Dao.AgentDao_Impl.agentsCount(AgentDao_Impl.java:94)
        at com.example.me.MyApp.View.SignUpActivity.signUpAction(SignUpActivity.java:58)
        at java.lang.reflect.Method.invoke(Native Method)&#160;
        at android.support.v7.app.AppCompatViewInflater$DeclaredOnClickListener.onClick(AppCompatViewInflater.java:288)&#160;
        at android.view.View.performClick(View.java:5612)&#160;
        at android.view.View$PerformClick.run(View.java:22288)&#160;
        at android.os.Handler.handleCallback(Handler.java:751)&#160;
        at android.os.Handler.dispatchMessage(Handler.java:95)&#160;
        at android.os.Looper.loop(Looper.java:154)&#160;
        at android.app.ActivityThread.main(ActivityThread.java:6123)&#160;
        at java.lang.reflect.Method.invoke(Native Method)&#160;
        at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:867)&#160;
        at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:757)&#160;

Seems like that problem is related to execution of db operation on main thread. However the sample test code provided in above link does not run on a separate thread:

    @Test
        public void writeUserAndReadInList() throws Exception {
            User user = TestUtil.createUser(3);
            user.setName(&quot;george&quot;);
            mUserDao.insert(user);
            List&lt;User&gt; byName = mUserDao.findUsersByName(&quot;george&quot;);
            assertThat(byName.get(0), equalTo(user));
        }

Am I missing anything over here? How can I make it execute without crash? Please suggest.


  [1]: https://developer.android.com/topic/libraries/architecture/room.html

Android Room - simple select query - Cannot access database on the main thread

From my experience, a php server would throw an exception to the log or to the server end, but node.js just simply crashes. Surrounding my code with a try-catch doesn&#39;t work either since everything is done asynchronously. I would like to know what does everyone else do in their production servers.

How do I prevent node.js from crashing? try-catch doesn&#39;t work

I have an app that is not in the market place (signed with a debug certificate), but would like to get crash log data, whenever my application crashes. Where can I find a log of why my app crashed?

How to get Android crash logs?

I&#39;ve been using Android Studio for 3 months now and one of the apps I started on it has become fairly large.  The memory usage indicated at the bottom right of the program says my allocated heap is maxed at 494M.

![enter image description here][1]

When I start to change the XML files my memory usage quickly reaches that cap and the IDE crashes with an Out Of Memory error like this.
 
![enter image description here][2]

I&#39;ve tried to increase the heap size using this but so far there has been no effect.

I&#39;ve looked at dozens of articles and other questions on how to increase the heap size but none of their answers are working.  No matter what I do to the VMOPTIONS or the IDE settings the heap size never increases.  I believe I am editting the correct file for the VMOPTIONS because if I purposely give it an invalid command Android Studio complains about it and doesn&#39;t start. 

I&#39;m using windows 7 - 64 bit and have 16GB RAM.
Has anyone else had this problem with Android Studio? And were you able to fix it?  


  [1]: http://i.stack.imgur.com/TjP6X.png
  [2]: http://i.stack.imgur.com/0owdY.png

Android Studio - How to increase Allocated Heap Size

Is this the case? Do NSUserDefaults get reset when you submit an update to an app on the App Store, or are they reset?

My app is crashing when updated but not crashing when downloaded fully - so I&#39;m trying to determine what could possibly be different in the updated session to the freshly downloaded session.

Cheers,
Nick.

Do NSUserDefaults persist through an Update to an app in the Appstore?

I&#39;m seeing this native crash with the following stack trace.

This happens in Android 7.0 &amp; 7.1 only. Nothing new has been added to the app, which has been in production for a few years, but with more devices being updated to Nougat this crash happens frequently now and is becoming a nuisance. 

Any advice would be appreciated.

    native: pc 000000000007a6c4  /system/lib64/libc.so (tgkill+8)
      native: pc 0000000000077920  /system/lib64/libc.so (pthread_kill+64)
      native: pc 000000000002538c  /system/lib64/libc.so (raise+24)
      native: pc 000000000001d24c  /system/lib64/libc.so (abort+52)
      native: pc 000000000001225c  /system/lib64/libcutils.so (__android_log_assert+224)
      native: pc 00000000000610e0  /system/lib64/libhwui.so
      native: pc 000000000003908c  /system/lib64/libhwui.so
      native: pc 000000000003609c  /system/lib64/libhwui.so
      native: pc 000000000003b4fc  /system/lib64/libhwui.so
      native: pc 000000000003c520  /system/lib64/libhwui.so
      native: pc 000000000003e694  /system/lib64/libhwui.so (_ZN7android10uirenderer12renderthread12RenderThread10threadLoopEv+152)
      native: pc 00000000000127f0  /system/lib64/libutils.so (_ZN7android6Thread11_threadLoopEPv+336)
      native: pc 00000000000a50b0  /system/lib64/libandroid_runtime.so (_ZN7android14AndroidRuntime15javaThreadShellEPv+116)
      native: pc 00000000000770f4  /system/lib64/libc.so (_ZL15__pthread_startPv+204)
      native: pc 000000000001e7d0  /system/lib64/libc.so (__start_thread+16)

Here&#39;s a list of devices that are affected: 
[![enter image description here][1]][1]


  [1]: https://i.stack.imgur.com/vLqjH.png



**UPDATE 7/18:**

Still unable to get to the root of this, so I decided to purchase a device which had most occurrences and was reasonably priced, which turned out to be Samsung Galaxy J3 2017 version with Android 7.0. Unfortunately I am still unable to reproduce the crash.

I&#39;ve also made some memory usage improvements to the app in production, but the crash is still happening.

From all the comments and my own research it seems to be related to dynamically linked NDKs, but I&#39;m not using any and its hard to find out if any of the dependencies do.

I would like to share my dependencies, it would be great if other folks facing the same issue could call out if they are using one of the same dependencies - perhaps we can spot the culprit this way.

    // App Compat
        compile &#39;com.android.support:support-v4:23.0.1&#39;
        compile &#39;com.android.support:appcompat-v7:23.0.1&#39;
        compile &#39;com.android.support:cardview-v7:23.0.1&#39;
        compile &#39;com.android.support:recyclerview-v7:23.0.1&#39;
    
        // Play Services
        compile &#39;com.google.android.gms:play-services-location:8.3.0&#39;
        compile &#39;com.google.android.gms:play-services-maps:8.3.0&#39;
        compile &#39;com.google.android.gms:play-services-analytics:8.3.0&#39;
        compile &#39;com.google.android.gms:play-services-appindexing:8.3.0&#39;
        compile &#39;com.google.android.gms:play-services-ads:8.3.0&#39;
    
        // Misc Libraries
        compile &#39;fr.avianey.com.viewpagerindicator:library:2.4.1@aar&#39;
        compile files(&#39;app/libs/htmlcleaner-2.7.jar&#39;)
        compile files(&#39;app/libs/protobuf-java-2.6.0.jar&#39;)
        compile files(&#39;app/libs/nineoldandroids-2.4.0.jar&#39;)
    
        // Fabric
        compile(&#39;com.twitter.sdk.android:twitter:1.13.0@aar&#39;) { transitive = true; }
        compile(&#39;com.crashlytics.sdk.android:crashlytics:2.5.5@aar&#39;) { transitive = true; }

For folks facing the same crash, please respond in comments if you are using any of these dependencies / versions. Maybe we can single out the problem dependency. 

Android 7 Native Crash: libc.so tgkill

I am experimenting with the Google Maps for iOS SDK latest version 1.2.1.2944 to animate a `GMSGroundOverlay`. The user has control over the image sequence, so using an animated `UIImage` isn&#39;t a possibility sadly, so i&#39;m loading in the `UIImage` on the fly. The `GMSGroundOverlay.icon` is set to the `UIImage` that is being updated.

Aside from high memory usage, I seem to have struck a limitation in that whenever I try to overlay a `UIImage` using `GMSGroundOverlay.icon` that is more than 1000px x 1000px, it crashes. Referencing a `UIImage` of 1000px x 1000px gets around the crash. 

It strikes me though that maybe I should utilise `CATiledLayer` for handling the image to only load into memory and subsequently into the icon property of `GMSGroundOverlay`, but has anyone had any experience of using `CATiledLayer` with Google Maps for iOS SDK and sequencing images as an animated `GMSGroundOverlay`?





GMSGroundOverlay animating - should I be using a CATiledLayer?

I&#39;ve setup the Crashlytics in my one iOS application and installed the application on a real device. My Crashlytics Dashboard is displaying that, I&#39;ve successfully added the app. However, it&#39;s not sending crash report. My internet speed is not so good. But I can check my emails from this device. Can anybody guess, where is the problem?

Crashlytics is not sending Crash report from iPhone

Ok, here is the deal, I **hate** putting out questions about my debugging and crashes. Because I usually handle them myself, but I just **cannot** get my way around this, even after **viewing multiple questions already**.

Ok so here is the problem, I find my app randomly on and off crashing with this stack trace:


    *** -[ViewController respondsToSelector:]: message sent to deallocated instance 0x1e5d2ef0

Where `ViewController` can vary, sometimes the place where my code crashes, has **NO** relevance to that particular `ViewController` and doesn&#39;t own or call it.

Also, to get that console trace, I have enabled Zombies, otherwise I would get no console print at all, I would only get: `objc_msgSend`, which I know means I am messaging something that is released. But I cannot find where that is... I am really stuck! Usually I **always** debug my crashes, so I am really stuck on this.

Again, this crashes in different places at different times, on and off. And the place it crashes has almost **no** relevance to the `ViewController`. And I find this very confusing. 

Do you need any of my code? I have **a lot** of files and since it is crashing in different places, distributing my code will be a mess!

I have tried to add symbolic breakpoints with no luck, and Zombies is not available on the Instruments application for iOS. I cannot run my app on the simulator as it has unsupportive architecture frameworks for it.

Thanks everyone...

ViewController respondsToSelector: message sent to deallocated instance (CRASH)

I have an android.app.RemoteServiceException (RSE) but without any message.
I get the following crash report on Google Play Console. When I get a RSE due to a bad Notification or Broadcast I get the related message but in this case it is a black crash.

```none
android.app.RemoteServiceException: 
  at android.app.ActivityThread$H.handleMessage (ActivityThread.java:1813)
  at android.os.Handler.dispatchMessage (Handler.java:102)
  at android.os.Looper.loop (Looper.java:154)
  at android.app.ActivityThread.main (ActivityThread.java:6781)
  at java.lang.reflect.Method.invoke (Method.java)
  at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run (ZygoteInit.java:1520)
  at com.android.internal.os.ZygoteInit.main (ZygoteInit.java:1410)
```

I started getting these crashes primarily on Android 7 and Samsung devices (in large).

[![Android versions and devices][1]][1]

We are following standard guidelines for Notifications and Broadcasts.
 

    targetSdkVersion 25
    compileSdkVersion 26

I have gone through many StackOverflow questions related to RemoteServiceException but not been able to find RCA hence posting the new question.   
Listed below are the questions I have checked and not been able to find a resolution for RSE:

 - https://stackoverflow.com/questions/25317659/how-to-fix-android-app-remoteserviceexception-bad-notification-posted-from-pac
 - https://stackoverflow.com/questions/10607097/how-to-add-vertical-line-to-remoteview-for-custom-android-notifications
 - https://stackoverflow.com/questions/24968556/how-to-fix-this-bug-android-app-remoteserviceexception-bad-notification-post
 - https://stackoverflow.com/questions/48124458/fcm-how-to-fix-android-app-remoteserviceexception-bad-notification-posted-fro
 - https://stackoverflow.com/questions/40175713/android-getting-cant-deliver-broadcast-error-on-dynamically-registered-broa
 - https://stackoverflow.com/questions/46971153/fatal-exception-android-app-remoteserviceexception-cant-deliver-broadcast-at


  [1]: https://i.stack.imgur.com/Zjzva.png

How to fix: android.app.RemoteServiceException without any message (not related to Bad Notification or Broadcast)

This is a weird crash I am getting. The crash happens when I press a button that goes to a certain ViewController. The line which it crashes on is:

    DestinationInformationViewController *info = [[DestinationInformationViewController alloc] init];
    [info setModalTransitionStyle: UIModalTransitionStyleCrossDissolve];
    [self presentViewController:info animated:YES completion: nil]; // CRASHES HERE
    [info release];


 The crash trace is:

`*** Terminating app due to uncaught exception &#39;NSInvalidUnarchiveOperationException&#39;, reason: &#39;Could not instantiate class named NSLayoutConstraint&#39;
*** First throw call stack:
(0x3758288f 0x35287259 0x37582789 0x375827ab 0x3153d54d 0x3153d6bb 0x3153d423 0x314ce001 0x3143c3c7 0x31319c59 0x3128fc17 0x3129a267 0x3129a1d5 0x3133959b 0x31338367 0x84091 0x374dc3fd 0x31271e07 0x31271dc3 0x31271da1 0x31271b11 0x31272449 0x3127092b 0x31270319 0x31256695 0x31255f3b 0x33c9822b 0x37556523 0x375564c5 0x37555313 0x374d84a5 0x374d836d 0x33c97439 0x31284cd5 0x82bb3 0x71200)
terminate called throwing an exception(gdb) Could not instantiate class named NSLayoutConstraint`



NOTE: This crashes on my iPhone 4 iOS 5.1 but not on my iPhone 4S iOS 6 Beta 2

presentViewController: crash on iOS &lt;6 (AutoLayout)

Hopefully this will be a quick fix.  I have been trying to figure out the error that i keep getting.  The error is listed below and the appdelagate is below that.

Any help is appreciated.

Thanks

&gt; 2012-04-12 21:11:52.669 Chanda[75100:f803] --- Assertion failure in `-[UITableView _endCellAnimationsWithContext:]`, `/SourceCache/UIKit_Sim/UIKit-1914.84/UITableView.m:1037`
&gt; 2012-04-12 21:11:52.671 Chanda[75100:f803] --- Terminating app due to uncaught exception &#39;`NSInternalInconsistencyException`&#39;, reason: &#39;Invalid update: invalid number of rows in section 0.  The number of rows contained in an existing section after the update (2) must be equal to the number of rows contained in that section before the update (2), plus or minus the number of rows inserted or deleted from that section (1 inserted, 0 deleted) and plus or minus the number of rows moved into or out of that section (0 moved in, 0 moved out).&#39;

    #import &quot;AppDelegate.h&quot;
    
    @implementation AppDelegate
    
    @synthesize window = _window;
    @synthesize databaseName,databasePath; 
    
    - (BOOL)application: (UIApplication *)application didFinishLaunchingWithOptions: (NSDictionary *)launchOptions {
        self.databaseName = @&quot;Customers.db&quot;;
        
        NSArray *documentPaths = NSSearchPathForDirectoriesInDomains(NSDocumentDirectory, NSUserDomainMask, YES);
        NSString *documentDir = [documentPaths objectAtIndex:0];
        self.databasePath = [documentDir stringByAppendingPathComponent:self.databaseName];
        [self createAndCheckDatabase];
        
        return YES;
    }
    
    - (void)createAndCheckDatabase {
        BOOL success;
        
        NSFileManager *fileManager = [NSFileManager defaultManager];
        success = [fileManager fileExistsAtPath:databasePath];
        
        if (success) return; 
        
        NSString *databasePathFromApp = [[[NSBundle mainBundle] resourcePath] stringByAppendingPathComponent:self.databaseName];
        
        [fileManager copyItemAtPath:databasePathFromApp toPath:databasePath error:nil];
    }
    
    @end

Assertion failure in -[UITableView _endCellAnimationsWithContext:]

Good day.I have very weird situation.The app crashes on some point but not as it usually will crash.The app goes back to previous activity or completelly quiting the application without showing the dialog &quot;UNFORTUNATALLY APP CLOSED&quot; and the android studio did not giving any exception log.This behaviour i assume is a crash...This happens on couple devices which are huaweu p8 lite with lollipop version(default kitkat) and sony xperia z with lollipop version (default 4.2.2).Im unable to debug the app at all and the crash at all...On the rest devices the app wont crash or wont restart or wont quit so i have no clue whats wrong with it...Please can you help me?




build gradle file which might be the option of weird &quot;crash&quot;

    buildscript {
        repositories {
            maven { url &#39;https://maven.fabric.io/public&#39; }
        }
    
        dependencies {
            classpath &#39;io.fabric.tools:gradle:1.19.2&#39;
        }
    }
    apply plugin: &#39;com.android.application&#39;
    apply plugin: &#39;io.fabric&#39;
    
    repositories {
        maven {
            url &#39;https://maven.fabric.io/public&#39;
        }
        maven {
            url &#39;https://github.com/suckgamony/RapidDecoder/raw/master/repository&#39;
        }
        maven {
            url &#39;https://dl.bintray.com/intercom/intercom-maven&#39;
        }
    }
    
    android {
        compileSdkVersion 22
        buildToolsVersion &quot;21.1.2&quot;
    
        defaultConfig {
            applicationId &quot;com.sparklingzoo.framkalla&quot;
            minSdkVersion 15
            targetSdkVersion 22
            versionCode 303
            versionName &quot;3.0.3&quot;
        }
        buildTypes {
            release {
                minifyEnabled false
                proguardFiles getDefaultProguardFile(&#39;proguard-android.txt&#39;), &#39;proguard-rules.pro&#39;
            }
        }
    }
    
    dependencies {
        compile fileTree(dir: &#39;libs&#39;, include: [&#39;*.jar&#39;])
        compile &#39;org.javatuples:javatuples:1.2&#39;
        compile &#39;com.android.support:appcompat-v7:22.1.1&#39;
        compile &#39;com.loopj.android:android-async-http:1.4.7&#39;
        compile &#39;uk.co.chrisjenx:calligraphy:2.1.0&#39;
        compile &#39;rapid.decoder:library:0.3.0&#39;
        compile &#39;rapid.decoder:jpeg-decoder:0.3.0&#39;
        compile &#39;rapid.decoder:png-decoder:0.3.0&#39;
        compile &#39;de.hdodenhof:circleimageview:2.0.0&#39;
        compile &#39;com.github.siyamed:android-shape-imageview:0.9.+@aar&#39;
        compile &#39;com.facebook.android:facebook-android-sdk:4.1.1&#39;
        compile(&#39;com.wu-man:android-oauth-client:0.0.3&#39;) {
            exclude module: &#39;support-v4&#39;
        }
        compile project(&#39;:pk-library&#39;)
        compile &#39;com.stripe:stripe-android:1.0.0&#39;
        compile(&#39;com.crashlytics.sdk.android:crashlytics:2.2.4@aar&#39;) {
            transitive = true;
        }
        compile (&#39;io.intercom.android:intercom-sdk:1.+@aar&#39;) {
            transitive = true
        }
        compile &#39;com.mixpanel.android:mixpanel-android:4.6.0&#39;
    //    compile &#39;com.google.android.gms:play-services:6.5.87&#39;
        compile &#39;com.parse.bolts:bolts-android:1.2.0&#39;
        compile files(&#39;libs/AF-Android-SDK-v3.3.0.jar&#39;)
    }



Android App crashes without any logcat or any exception

When I build my app with Xcode 8 GM Seed and run it on an iOS 9.2 below device OR simulator, I get strange  EXC_BAD_ACCESS crashes during app startup or a few seconds after the app launched. The crash always happens in a different spot (adding a subview, `[UIImage imageNamed:]`, app delegate&#39;s main method etc). I don&#39;t get those crashes when I run it on iOS 9.3+ or 10 and I don&#39;t get them when I **build** with Xcode 7 and run on iOS 9.2 and below. Has anyone else experiences something similar? Is this a known issue with Xcode 8?

Xcode 8 build crash on iOS 9.2 and below

First time I launch the app, everything seems to run fine. I&#39;ll hit the stop button, do some work and when I go to launch it again, it seems to crash before it can even load anything. 
Press stop, hit Run again, and it works fine. Until I repeat the process. 

This is where xcode is highlighting the error with &quot;Thread 1:signal SIGABRT&quot;. 
Obviously nothing useful here. 

    int main(int argc, char *argv[])
    {
        @autoreleasepool {
            return UIApplicationMain(argc, argv, nil, NSStringFromClass([PokerAppDelegate class]));
        }
    }

The debug console shows nothing besides (lldb) (So I suppose its stopping, not crashing at this point)
So, when I perform a `BT` this is what I get:

    (lldb) bt
    * thread #1: tid = 0x1c03, 0x9a258a6a libsystem_kernel.dylib`__pthread_kill + 10, stop reason = signal SIGABRT
        frame #0: 0x9a258a6a libsystem_kernel.dylib`__pthread_kill + 10
        frame #1: 0x99ea1b2f libsystem_c.dylib`pthread_kill + 101
        frame #2: 0x04a7057b libsystem_sim_c.dylib`abort + 140
        frame #3: 0x01dc0b4e GraphicsServices`GSRegisterPurpleNamedPort + 348
        frame #4: 0x01dc069f GraphicsServices`_GSEventInitialize + 123
        frame #5: 0x01dc0c1f GraphicsServices`GSEventInitialize + 36
        frame #6: 0x000163f9 UIKit`UIApplicationMain + 600
        frame #7: 0x00001d0d Guitar Chord Poker HD`main(argc=1, argv=0xbffff32c) + 141 at main.m:16
        frame #8: 0x00001c35 Guitar Chord Poker HD`start + 53
    (lldb) 


Here&#39;s what I have done so far:

 - Performed a &#39;Clean&#39; 
 - I&#39;ve reset the simulators and reset my computer
 - I&#39;ve commented out all the code in the view controller, still crashes
 - I&#39;ve commented out all the code in the app delegate, still crashes
 - BUT....I&#39;ve run    the app on a device outside of Xcode, and it seems
   to work perfectly    fine.
 - (EDIT) I&#39;ve deleted/reinstalled xcode, and all content(Simulators, Docs) from the various cache folders (This stops xcode from automatically reinstalling the old ones after a new download). Still can&#39;t find where command line tools is kept though. Still crashes. 

Despite all this, apps still crash every second/other launch. 

Thing is I had no issues until the most recent Xcode update. 
Could it be an Xcode bug? 

(EDIT) I am also running the latest developer releases of OSX. Could that be interfering?

iOS app crashing every other launch, can&#39;t find error

My app crashes and I need some advice to find and fix the problem. It is not a device or cable problem because it happens with all devices and not only when debugging. Xcode won&#39;t stop on an exception breakpoint the app just simply stops running with no error information. When debugging xcode only says &#39;Lost connection to X&#39;s iPhone&#39;. I have the following log from the device, see MY_CRASHING_APP:

    Incident Identifier: 85730E97-BA21-4C72-8AD1-02075A8FD9A7
    CrashReporter Key:   d9e9eb14ac1801fea11e662a394244d7caf29154
    Hardware Model:      iPhone4,1
    OS Version:          iPhone OS 8.0 (12A365)
    Kernel Version:      Darwin Kernel Version 14.0.0: Tue Aug 19 15:08:02 PDT 2014; root:xnu-2783.1.72~8/RELEASE_ARM_S5L8940X
    Date:                2014-09-24 15:02:41 +0200
    Time since snapshot: 325 ms
    
    Free pages:                              20793
    Active pages:                            20412
    Inactive pages:                          10678
    Speculative pages:                       1757
    Throttled pages:                         55906
    Purgeable pages:                         699
    Wired pages:                             21196
    File-backed pages:                       30263
    Anonymous pages:                         2584
    Compressions:                            76385
    Decompressions:                          3948
    Compressor Size:                         81
    Uncompressed Pages in Compressor:        61
    Page Size:                               4096
    Largest process:   MY_CRASHING_APP
    
    Processes
         Name       |            &lt;UUID&gt;                |     CPU Time|     rpages|       purgeable| recent_max| lifetime_max| fds |  [reason]         | (state)
    
           coreduetd &lt;675ac3d39b193f9bba42896818431859&gt;         0.049         124                0           -           391   50     [vnode-limit]     (daemon) (idle)
               homed &lt;77bcbc47e2723e269b0ff9d115658259&gt;         0.052         146                0           -           458   50     [vnode-limit]     (daemon) (idle)
               gamed &lt;a51b1ad16b693a75aeaaf2166e7b1b0b&gt;         0.049          38                0           -            74   50     [vnode-limit]     (daemon) (idle)
                 lsd &lt;72b4494834d3357bb8aa32fd5b5c8e83&gt;         0.068         161                0           -           368   50     [vnode-limit]     (daemon)
       InCallService &lt;88e149874b1c35f2b8adbeee958d7258&gt;        18.461        1289                0           -          3238   50     [vnode-limit]     (resume) (continuous)
     MY_CRASHING_APP &lt;1542054cd5393df29827ca1a6bd34e04&gt;        59.116       24504              600           -         29490 1600     [vnode-limit]     (frontmost) (resume)
                ptpd &lt;c0bc1e573edb3bcebea0f3140a139421&gt;         3.442         878                0           -          1634   50                       (daemon)
            BTServer &lt;1b7372b3ae393847b1c3ccaa720e991e&gt;         3.057         393                0           -          1437   50                       (daemon)
           lockdownd &lt;bb602fb4b5ac3b51af2d22c4fdce9778&gt;        11.306         271                0           -           761   50                       (daemon)
             imagent &lt;01ebc2c08d7f36059714967efaa86e78&gt;        19.892         585                0           -          1286   50                       (daemon)
           locationd &lt;9727e24fbe4f357cb27d7bc8cf882c93&gt;       489.694        1665                0           -          3586   50                       (daemon)
    identityservices &lt;13c2b979d6433252a011087be05e1aa5&gt;        22.999         696                0          +2          1585   50                       (daemon)
          discoveryd &lt;dff5d0d2edf43b45b0c7fbd4a3e1b677&gt;        93.758         589                0           -          1077  100                       (daemon)
               wifid &lt;5fb79228aa653a9bb725217b9cb891e6&gt;        63.420         571                0           -          1098   50                       (daemon)
       iaptransportd &lt;ae70565455de38f3aab8993e9d109207&gt;         7.713         306                0           -           579   50                       (daemon)
        mediaserverd &lt;b5ba58774a853d43a17559ae76a6f918&gt;       649.476        1025               64           -          6134   50                       (daemon)
             syslogd &lt;a5a138dc01cd34d19bbe336c03099ce7&gt;        40.100         201                0           -           384   50                       (daemon)
              powerd &lt;b3163caaebd53f7aa42634836472ea04&gt;        43.199         231                0           -           474   50                       (daemon)
                apsd &lt;17af2320ccfb3e668b6455b95b4612ce&gt;        37.461         631                0           -          1445   50                       (daemon)
            networkd &lt;a657abe0ce803333b886876a8f7a36e0&gt;        77.271         596                0           -          1297   50                       (daemon)
         dataaccessd &lt;db655c44d5c830dc9e5f34f7edcb17a4&gt;       243.259        1777                0           -          3097  100                       (daemon)
                 vmd &lt;88cebb23d0f1344db23e1896b1787f2d&gt;         0.505         204                0           -           617   50                       (daemon)
                iapd &lt;e84bb9b7cf7530babc36c6ca37b7f345&gt;        11.963         453                0           -          1673   50                       (daemon)
        syslog_relay &lt;9e18dbcbcc07374e9d14c732b8dabad2&gt;         1.424          98                0           -           189   50                       (daemon)
              voiced &lt;2d24fa3e32533f2f8298743eaf348d63&gt;         0.179         210                0           -           581   50                       (daemon)
        itunesstored &lt;d50d5b1c3f693694a2eee878aae8facf&gt;         0.573         908                0           -          1759   50                       (daemon)
         SpringBoard &lt;3e0aacaca7103aa09a71e5c9fee3e012&gt;       841.081        7088               29           -         16912   50                      
          backboardd &lt;117d65aca8ce3ba68c7fd87d9ab81da6&gt;      3424.058        6678              625           -          4409   50                       (daemon)
      UserEventAgent &lt;2f6c74a697943aed899faebac621e4c3&gt;       316.816         848                0           -          2101  200                       (daemon)
             configd &lt;64e4db8bced23463b446c4b7c868fcfa&gt;        31.906         416                0           -           933   50                       (daemon)
           fseventsd &lt;a393d343a7533860b5c1eddb922a33f1&gt;        20.088         405                0           -           805   50                       (daemon)
        fairplayd.H1 &lt;c3856f0573fb3f9887721a239507f28b&gt;        30.647         159                0           -          1096   50                       (daemon)
          assertiond &lt;032107d4db2b36ddac986060d8c62f73&gt;        26.282         289                0           -           702   50                       (daemon)
       wirelessproxd &lt;ba82fe3b38f63f2b8b8807a2bf97aadd&gt;         1.071         179                0           -           643   50                       (daemon)
           distnoted &lt;e8f9e76e751838a880dad2d4a953f814&gt;         4.457         193                0           -           254   50                       (daemon)
    discoveryd_helpe &lt;84abc0c6dd5b37a8b2c8323881e16da7&gt;         0.493         123                0           -           466   50                       (daemon)
                 ubd &lt;5f4f0054821e3b41b543a4d9f4176291&gt;         9.040         730                0           -          1540   50                       (daemon)
    filecoordination &lt;68a3848887853629adae42f5828a5443&gt;         2.731         251                0           -           649  100                       (daemon)
          aggregated &lt;ab0d307a392f36cc827709d24c4b8696&gt;      1335.558        1081                0           -          1688   50                       (daemon)
          DTMobileIS &lt;086152f142ac30a686a172b148d38fbc&gt;       109.156         474                0           -          1724   50                       (daemon)
         touchsetupd &lt;d8aabe65f2d23f6ab7704bbccc6c2ba1&gt;         0.388         158                0           -           464   50                       (daemon)
            cfprefsd &lt;6e5dcfe209183c719091d07edad590da&gt;         0.150         166                0           -           320   50                       (daemon)
           accountsd &lt;9eb0309b021033c6b24ce65da48fa228&gt;         0.665         595                0           -          1909   50                       (daemon)
          CommCenter &lt;0e1ced0eddce346ba27e9f54886ef025&gt;       669.306        1543                0           -          4623   50                       (daemon)
             notifyd &lt;7beaf472572334d4989a40473776f635&gt;        61.698         272                0           -           309   50                       (daemon)
         ReportCrash &lt;b36d5780860a3dfcbb146b2cc6bca339&gt;         0.062         146                0           -           443   50                       (daemon)
    
    **End**


**UPDATE:**

It turned out to be a memory issue. The app was allocating a lot of memory very quickly and the OS terminated the app. It was strange that Xcode did not log a memory warning while in Instruments show that the app received a LOT of warnings. Other apps that used the same amount of memory got away with no memory warnings. My guess is that those were not allocating memory at such a fast rate.

The app was running on an iPhone 4S and it got killed at around 90MB memory usage.

What confused me is other out of memory issues all had `Purgeable pages: 0`. So I&#39;m guessing this is not exactly an out of memory but too much memory usage in a short time?

iOS app crashes, xcode says &#39;Lost connection to X&#39;s iPhone&#39; when debugging

In the app I&#39;m developing on Android, I keep getting a Fatal Signal 11 error.

I think it&#39;s something to do with the way that I&#39;m accessing the memory but I can&#39;t figure out what is causing it. 

Any help will be much appreciated!

Here&#39;s the LogCat:

    05-02 23:47:17.618: D/dalvikvm(590): GC_FOR_ALLOC freed 68K, 4% free 6531K/6787K, paused 101ms
    05-02 23:47:17.638: I/dalvikvm-heap(590): Grow heap (frag case) to 7.619MB for 1228816-byte allocation
    05-02 23:47:17.738: D/dalvikvm(590): GC_CONCURRENT freed 1K, 4% free 7730K/8007K, paused 5ms+14ms
    05-02 23:47:17.878: D/dalvikvm(590): GC_FOR_ALLOC freed &lt;1K, 4% free 7730K/8007K, paused 37ms
    05-02 23:47:17.888: I/dalvikvm-heap(590): Grow heap (frag case) to 8.790MB for 1228816-byte allocation
    05-02 23:47:17.998: D/dalvikvm(590): GC_CONCURRENT freed &lt;1K, 4% free 8930K/9223K, paused 4ms+4ms
    05-02 23:47:17.998: A/libc(590): Fatal signal 11 (SIGSEGV) at 0x00000000 (code=1)



Android Fatal Signal 11

My company has started having a number of customers call in because our program is crashing with an access violation on their systems.

The crash happens in SQLite 3.6.23.1, which we ship as part of our application. (We ship a custom build, in order to use the same VC++ libraries as the rest of the app, but it&#39;s the stock SQLite code.)

The crash happens when `pcache1Fetch` executes `call 00000000`, as shown by the WinDbg callstack:

    0b50e5c4 719f9fad 06fe35f0 00000000 000079ad 0x0
    0b50e5d8 719f9216 058d1628 000079ad 00000001 SQLite_Interop!pcache1Fetch+0x2d [sqlite3.c @ 31530]
    0b50e5f4 719fd581 000079ad 00000001 0b50e63c SQLite_Interop!sqlite3PcacheFetch+0x76 [sqlite3.c @ 30651]
    0b50e61c 719fff0c 000079ad 0b50e63c 00000000 SQLite_Interop!sqlite3PagerAcquire+0x51 [sqlite3.c @ 36026]
    0b50e644 71a029ba 0b50e65c 00000001 00000e00 SQLite_Interop!getAndInitPage+0x1c [sqlite3.c @ 40158]
    0b50e65c 71a030f8 000079ad 0aecd680 071ce030 SQLite_Interop!moveToChild+0x2a [sqlite3.c @ 42555]
    0b50e690 71a0c637 0aecd6f0 00000000 0001edbe SQLite_Interop!sqlite3BtreeMovetoUnpacked+0x378 [sqlite3.c @ 43016]
    0b50e6b8 71a109ed 06fd53e0 00000000 071ce030 SQLite_Interop!sqlite3VdbeCursorMoveto+0x27 [sqlite3.c @ 50624]
    0b50e824 71a0db76 071ce030 0b50e880 071ce030 SQLite_Interop!sqlite3VdbeExec+0x14fd [sqlite3.c @ 55409]
    0b50e850 71a0dcb5 0b50e880 21f9b4c0 00402540 SQLite_Interop!sqlite3Step+0x116 [sqlite3.c @ 51744]
    0b50e870 00629a30 071ce030 76897ff4 70f24970 SQLite_Interop!sqlite3_step+0x75 [sqlite3.c @ 51806]

The relevant line of C code is: 

    if( createFlag==1 ) sqlite3BeginBenignMalloc();

The compiler inlines `sqlite3BeginBenignMalloc`, which is defined as:

    typedef struct BenignMallocHooks BenignMallocHooks;
    static SQLITE_WSD struct BenignMallocHooks {
      void (*xBenignBegin)(void);
      void (*xBenignEnd)(void);
    } sqlite3Hooks = { 0, 0 };
    
    # define wsdHooksInit
    # define wsdHooks sqlite3Hooks
    
    SQLITE_PRIVATE void sqlite3BeginBenignMalloc(void){
      wsdHooksInit;
      if( wsdHooks.xBenignBegin ){
        wsdHooks.xBenignBegin();
      }
    }

And the assembly for this is:

    719f9f99    mov     esi,dword ptr [esp+1Ch]
    719f9f9d    cmp     esi,1
    719f9fa0    jne     SQLite_Interop!pcache1Fetch+0x2d (719f9fad)
    719f9fa2    mov     eax,dword ptr [SQLite_Interop!sqlite3Hooks (71a7813c)]
    719f9fa7    test    eax,eax
    719f9fa9    je      SQLite_Interop!pcache1Fetch+0x2d (719f9fad)
    719f9fab    call    eax ; *** CRASH HERE ***
    719f9fad    mov     ebx,dword ptr [esp+14h]

The registers are:

    eax=00000000 ebx=00000001 ecx=000013f0 edx=fffffffe esi=00000001 edi=00000000
    eip=00000000 esp=0b50e5c8 ebp=000079ad iopl=0         nv up ei pl nz na po nc
    cs=0023  ss=002b  ds=002b  es=002b  fs=0053  gs=002b             efl=00010202

If `eax` is 0 (which it is), the zero flag should be set by `test eax, eax`, but it&#39;s non-zero. Because the zero flag isn&#39;t set, `je` doesn&#39;t jump, and then the app crashes trying to execute `call eax (00000000)`.

*Update*: `eax` should always be 0 here because `sqlite3Hooks.xBenignBegin` is not set in our build of the code. I could rebuild SQLite with `SQLITE_OMIT_BUILTIN_TEST` defined, which would turn on `#define sqlite3BeginBenignMalloc()` in the code and omit this code path entirely. That may solve the issue, but it doesn&#39;t feel like a &quot;real&quot; fix; what would stop it happening in some other code path?

So far the common factor is that all customers are running &quot;Windows 7 Home Premium 64-bit (6.1, Build 7601) Service Pack 1&quot; and have one of the following CPUs (according to DxDiag):

 - AMD A6-3400M APU with Radeon(tm) HD Graphics (4 CPUs), ~1.4GHz
 - AMD A8-3500M APU with Radeon(tm) HD Graphics (4 CPUs), ~1.5GHz
 - AMD A8-3850 APU with Radeon(tm) HD Graphics (4 CPUs), ~2.9GHz

According to Wikipedia&#39;s [AMD Fusion article][1], these are all &quot;Llano&quot; model AMD Fusion chips based on the K10 core and were released in June 2011, which is when we first started getting reports.

The most common customer system is the Toshiba Satellite L775D, but we also have crash reports from HP Pavilion dv6 &amp; dv7 and Gateway systems.

Could this crash be caused by a CPU error (see [Errata for AMD Family 12h Processors][2]), or is there some other possible explanation that I&#39;m overlooking? (According to Raymond, it [could be overclocking][3], but it&#39;s odd that just this specific CPU model is affected, if so.)

Honestly, it doesn&#39;t seem possible that it&#39;s really a CPU or OS error, because the customers aren&#39;t getting bluescreens or crashes in other applications. There must be some other, more likely, explanation--but what?

*Update 15 August:* I&#39;ve acquired a Toshiba L745D notebook with an AMD A6-3400M processor and can reproduce the crash consistently when running the program. The crash is always on the same instruction; `.time` reports anywhere from 1m30s to 7m of user time before the crash. One fact (that may be pertinent to the issue) that I neglected to mention in the original post is that the application is multi-threaded and has both high CPU and I/O usage. The application spawns four worker threads by default and posts 80+% CPU usage (there is some blocking for I/O as well as for mutexes in the SQLite code) until it crashes. I modified the application to only use two threads, and it still crashed (although it took longer to happen). I&#39;m now running a test with just one thread, and it hasn&#39;t crashed yet.

Note also that it doesn&#39;t appear to be purely a CPU load problem; I can run Prime95 without errors on the system and it will boost the CPU temperature to &gt;70&#176;C, while my application barely gets the temperature above 50&#176;C while it&#39;s running.

*Update 16 August:* Perturbing the instructions slightly makes the problem &quot;go away&quot;. For eaxmple, replacing the memory load (`mov eax,dword ptr [SQLite_Interop!sqlite3Hooks (71a7813c)]`) with `xor eax, eax` prevents the crash. Modifying the original C code to add an extra check to the `if( createFlag==1 )` statement changes the relative offsets of various jumps in the compiled code (as well as the location of the `test eax, eax` and `call eax` statements) and also seems to prevent the problem.

The strangest result I&#39;ve found so far is that changing the `jne` at `719f9fa0` to two `nop` instructions (so that control *always* falls through to the `test eax, eax` instruction, no matter what the value of `createFlag`/`esi` is) allows the program to run without crashing.

  [1]: http://en.wikipedia.org/wiki/AMD_Fusion
  [2]: http://support.amd.com/us/Processor_TechDocs/44739.pdf
  [3]: http://blogs.msdn.com/b/oldnewthing/archive/2005/04/12/407562.aspx

Is this &quot;should not happen&quot; crash an AMD Fusion CPU bug?

Is there a simple way to trigger a crash in R?  This is for testing purposes only, to see how a certain program that uses R in the background reacts to a crash and help determine if some rare problems are due to crashes or not.

How to crash R?

Are any specific settings required on the Java tab of Tomcat configuration tool in order to generate a `hs_err_pid.log` file?

What is the default location of the `hs_err_pid.log` file? Can this location be changed?

What are hs_err_pid.log files generated when Tomcat crashes?

Is there any way a program can crash before main()?

Is there any way a C/C++ program can crash before main()?

I have a crash in my app. It happens for a lot of users and its multiple places in ActivityThread.java method reportSizeConfigurations. I dont know what this is used for, and why it freezes.

The freeze happens right after the splash screen (when the main activity is started) and is only happening on upgrading of the app. If you reinstall the application the problem goes away. Problem is, I cant tell all the users to reinstall the application... 

Does anyone know what might cause this and why? It seems maybe to be connected with some DB handling, but thats just a guess.

Heres the stacktrace from Crashlytics:

    Fatal Exception: java.lang.IllegalArgumentException: reportSizeConfigurations: ActivityRecord not found for: Token{a28a055 null}
       at android.os.Parcel.readException(Parcel.java:1697)
       at android.os.Parcel.readException(Parcel.java:1646)
       at android.app.ActivityManagerProxy.reportSizeConfigurations(ActivityManagerNative.java:8342)
       at android.app.ActivityThread.reportSizeConfigurations(ActivityThread.java:3049)
       at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2992)
       at android.app.ActivityThread.-wrap14(ActivityThread.java)
       at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1631)
       at android.os.Handler.dispatchMessage(Handler.java:102)
       at android.os.Looper.loop(Looper.java:154)
       at android.app.ActivityThread.main(ActivityThread.java:6682)
       at java.lang.reflect.Method.invoke(Method.java)
       at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:1520)
       at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:1410)

Heres the stacktrace from play store &#39;ANRs &amp; crashes&#39;:

        &quot;main&quot; prio=5 tid=1 TimedWaiting
      | group=&quot;main&quot; sCount=1 dsCount=0 obj=0x74864f70 self=0x7f8b896a00
      | sysTid=28578 nice=0 cgrp=default sched=0/0 handle=0x7f8f832a98
      | state=S schedstat=( 237746089 66838748 1069 ) utm=18 stm=5 core=6 HZ=100
      | stack=0x7fcdbf9000-0x7fcdbfb000 stackSize=8MB
      | held mutexes=

      at java.lang.Object.wait! (Native method)
    - waiting on &lt;0x0c54fb7b&gt; (a java.lang.Object)
      at java.lang.Thread.parkFor$ (Thread.java:2127)
    - locked &lt;0x0c54fb7b&gt; (a java.lang.Object)
      at sun.misc.Unsafe.park (Unsafe.java:325)
      at java.util.concurrent.locks.LockSupport.parkNanos (LockSupport.java:201)
      at android.database.sqlite.SQLiteConnectionPool.waitForConnection (SQLiteConnectionPool.java:670)
      at android.database.sqlite.SQLiteConnectionPool.acquireConnection (SQLiteConnectionPool.java:348)
      at android.database.sqlite.SQLiteSession.acquireConnection (SQLiteSession.java:894)
      at android.database.sqlite.SQLiteSession.prepare (SQLiteSession.java:586)
      at android.database.sqlite.SQLiteProgram.&lt;init&gt; (SQLiteProgram.java:58)
      at android.database.sqlite.SQLiteQuery.&lt;init&gt; (SQLiteQuery.java:37)
      at android.database.sqlite.SQLiteDirectCursorDriver.query (SQLiteDirectCursorDriver.java:44)
      at android.database.sqlite.SQLiteDatabase.rawQueryWithFactory (SQLiteDatabase.java:1318)
      at android.database.sqlite.SQLiteQueryBuilder.query (SQLiteQueryBuilder.java:399)
      at android.database.sqlite.SQLiteQueryBuilder.query (SQLiteQueryBuilder.java:294)
      at com.norwegian.travelassistant.managers.storagemanager.StorageManager.query (StorageManager.java:1011)
      at com.norwegian.travelassistant.managers.storagemanager.StorageManager.a (StorageManager.java:1218)
    - locked &lt;0x00f0bd98&gt; (a java.lang.Object)
      at com.norwegian.travelassistant.managers.storagemanager.StorageManager.a (StorageManager.java:1205)
      at com.norwegian.travelassistant.managers.storagemanager.StorageManager.F (StorageManager.java:1812)
      at com.norwegian.travelassistant.managers.e.a (LanguageManager.java:63)
      at com.norwegian.travelassistant.managers.e.a (LanguageManager.java:84)
      at com.norwegian.travelassistant.tabbar.TabsActivity.onCreate (TabsActivity.java:141)
      at android.app.Activity.performCreate (Activity.java:6705)
      at android.app.Instrumentation.callActivityOnCreate (Instrumentation.java:1119)
      at android.app.ActivityThread.performLaunchActivity (ActivityThread.java:2664)
      at android.app.ActivityThread.handleLaunchActivity (ActivityThread.java:2772)
      at android.app.ActivityThread.-wrap12 (ActivityThread.java)
      at android.app.ActivityThread$H.handleMessage (ActivityThread.java:1515)
      at android.os.Handler.dispatchMessage (Handler.java:102)
      at android.os.Looper.loop (Looper.java:241)
      at android.app.ActivityThread.main (ActivityThread.java:6217)
      at java.lang.reflect.Method.invoke! (Native method)
      at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run (ZygoteInit.java:865)
      at com.android.internal.os.ZygoteInit.main (ZygoteInit.java:755)

Please tell if you need more info

Android ActivityThread.reportSizeConfigurations causes app to freeze with black screen and then crash

By using Android&#39;s new Android App Bundle, I have received a `Resource Not Found` error in 2 of my Google Play Store apps.
 
Here is the stacktrace from fabric for one of the apps:

    Unable to start activity ComponentInfo{/com.Lastyear.MainActivity}: android.content.res.Resources$NotFoundException: File res/drawable/abc_item_background_holo_dark.xml from drawable resource ID #0x7f08002c
           at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2377)
           at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2429)
           at android.app.ActivityThread.access$800(ActivityThread.java:151)
           at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1342)
           at android.os.Handler.dispatchMessage(Handler.java:110)
           at android.os.Looper.loop(Looper.java:193)
           at android.app.ActivityThread.main(ActivityThread.java:5363)
           at java.lang.reflect.Method.invokeNative(Method.java)
           at java.lang.reflect.Method.invoke(Method.java:515)
           at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:828)
           at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:644)
           at dalvik.system.NativeStart.main(NativeStart.java)


`build.gradle` dependencies:


      
     dependencies {
    implementation fileTree(dir: &#39;libs&#39;, include: [&#39;*.jar&#39;])
    testImplementation &#39;junit:junit:4.12&#39;
    implementation &#39;com.android.support.constraint:constraint-layout:1.1.2&#39;
    implementation &#39;com.android.support:appcompat-v7:27.1.1&#39;
    implementation &#39;com.android.support:customtabs:27.1.1&#39;
    implementation &#39;com.android.support:cardview-v7:27.1.1&#39;
    implementation &#39;com.squareup.picasso:picasso:2.5.2&#39;

    implementation &#39;com.android.support:palette-v7:27.1.1&#39;
    implementation &#39;com.afollestad.material-dialogs:core:0.9.6.0&#39;
    implementation &#39;com.jakewharton:butterknife:8.8.1&#39;
    implementation &#39;com.github.bumptech.glide:glide:3.7.0&#39;
    implementation &#39;com.android.support:design:27.1.1&#39;
    annotationProcessor &#39;com.jakewharton:butterknife-compiler:8.8.1&#39;
    implementation &#39;com.github.hotchemi:android-rate:1.0.1&#39;
    implementation &#39;com.hannesdorfmann.smoothprogressbar:library:1.0.0&#39;
    implementation &#39;com.android.support:palette-v7:27.1.1&#39;
    implementation &#39;com.google.android.gms:play-services-ads:15.0.1&#39;
    implementation &#39;com.muddzdev:styleabletoast:1.0.9&#39;
    implementation &#39;com.github.GrenderG:Toasty:1.2.5&#39;
    implementation &#39;com.hannesdorfmann.smoothprogressbar:library:1.0.0&#39;

    implementation &#39;com.wang.avi:library:2.1.3&#39;
    implementation &#39;com.github.medyo:fancybuttons:1.8.4&#39;
    implementation &#39;com.irozon.sneaker:sneaker:1.0.1&#39;
    implementation &#39;com.sdsmdg.tastytoast:tastytoast:0.1.1&#39;
    implementation &#39;de.hdodenhof:circleimageview:2.2.0&#39;
    implementation &#39;com.github.barteksc:android-pdf-viewer:2.8.2&#39;


    implementation &#39;com.getkeepsafe.taptargetview:taptargetview:1.11.0&#39;


    implementation(&#39;com.crashlytics.sdk.android:crashlytics:2.6.8@aar&#39;) {
        transitive = true;
    }


    implementation &#39;petrov.kristiyan:colorpicker-library:1.1.8&#39;}



One more thing, it is happening only on Android 4 operating system, not on newer versions of Android. I have found that other apps are having the same problem of `Resource Not Found`, which was not existing before using Android&#39;s app bundle. Is there some problem in the library or code or it is because of the beta version of Android&#39;s app bundle?


I have also found the resource drawable due to which it crashes:-
[![Screenshot showing the highlighted drawable resource that causes the problem.][2]][2]


  [2]: https://i.stack.imgur.com/JrETz.png

I think this question is also related to this one: https://stackoverflow.com/questions/51228226

Android App Bundle introduces Resource Not found crash in Android app

Clarified Question:

When the OS sends the command to write a sector to disk is it atomic? i.e. Write of new data succeeds fully or old data is left intact should the power fail immediately following the write command. I don&#39;t care about what happens in multiple sector writes - torn pages are acceptable.

Old Question:

Say you have old data X on disk, you write new data Y over it, and a tree falls on the power line during that write. With no fancy UPS or battery backed disk controller, you can end up with a torn page, where the data on disk is part X and part Y. Can you ever end up with a situation where the data on disk is part X, part Y, and part garbage?

I&#39;ve been trying to understand the design of ACID systems like databases, and to my naive thinking, it seems firebird, which does not use a write-ahead log, is relying that a given write will not destroy old data (X) - only fail to fully write new data (Y). That means that if part of X is being overwritten, only the part of X that is being overwritten can be changed, not the part of X we intend to keep.

To clarify, this means if you have a page sized buffer, say 4096 bytes, filled with half Y, half X that we want to keep - and we tell the OS to write that buffer over X, there is no situation short of serious disk failure where the half X that we want to keep is corrupted during the write.

Are disk sector writes atomic?

I am getting a message in my debugger:

&gt;The LLDB RPC server has crashed. The crash log is located in ~/Library/Logs/DiagnosticReports and has a prefix &#39;lldb-rpc-server&#39;. Please file a bug and attach the most recent crash log.

[![enter image description here][1]][1]


  [1]: https://i.stack.imgur.com/tzzbN.png

What is LLDB RPC Server ? When does it crash in Xcode? Why it crashes?

I installed jdk and eclipse on to Ubuntu 13.04. It stays open till I create a project and type some basic but then suddenly within a minute when I click somewhere like javadoc or Ctrl+Space, it immediately crashes with the following message. I had this problem with Juno and Ubuntu 12.04, but when I upgraded from Juno to Indigo, it was fine. But now after using Indigo and Ubuntu 13.04 it&#39;s all messed up. Even Juno won&#39;t work with Ubuntu 13.04, I need help. I need to get eclipse working. I just am ready to install/remove anything to get Eclipse working again.

    
    [psycho:~] $ /opt/eclipse/eclipse 

    (Eclipse:19297): Gtk-WARNING **: Unable to locate theme engine in module_path: &quot;mist&quot;,

    (Eclipse:19297): Gtk-WARNING **: Unable to locate theme engine in module_path: &quot;mist&quot;,
    #
    # A fatal error has been detected by the Java Runtime Environment:
    #
    #  SIGSEGV (0xb) at pc=0x00007fb29dce2009, pid=19297, tid=140405947455232
    #
    # JRE version: 7.0_10-b18
    # Java VM: Java HotSpot(TM) 64-Bit Server VM (23.6-b04 mixed mode linux-amd64 compressed oops)
    # Problematic frame:
    # C  [libsoup-2.4.so.1+0x6e009]  soup_session_feature_detach+0x19
    #
    # Failed to write core dump. Core dumps have been disabled. To enable core dumping, try        &quot;ulimit -c unlimited&quot; before starting Java again
    #
    # An error report file with more information is saved as:
    # /home/psycho/hs_err_pid19297.log
    #
    # If you would like to submit a bug report, please visit:
    #   http://bugreport.sun.com/bugreport/crash.jsp
    # The crash happened outside the Java Virtual Machine in native code.
    # See problematic frame for where to report the bug.
    #


My Logs: [Logs generated by eclipse][1]


  [1]: http://pastebin.com/t22x4GGR

Why does my Eclipse Indigo crash on Ubuntu 13.04 with Oracle JDK 64bit?

I want to show a snackbar as soon as the user opens the Google Maps activity, but the thing is that there&#39;s no views in the activity to use as the first parameter of the activity (in the `findViewById()` of `Snackbar.make()`). What do I put there?
Here&#39;s the java class code:

    public class MapsActivity extends FragmentActivity implements OnMapReadyCallback {

    private GoogleMap mMap;

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_maps);

        // Obtain the SupportMapFragment and get notified when the map is ready to be used.
        SupportMapFragment mapFragment = (SupportMapFragment) getSupportFragmentManager()
                .findFragmentById(R.id.map);
        mapFragment.getMapAsync(this);
    }

    @Override
    public void onMapReady(GoogleMap googleMap) {
        mMap = googleMap;
        mMap.setBuildingsEnabled(true);
        mMap.getUiSettings().setZoomControlsEnabled(true);
        float cameraZoom = 17;
        LatLng location = new LatLng(43.404032, -80.478184);
        mMap.addMarker(new MarkerOptions().position(location).title(&quot;49 McIntyre Place #18, Kitchener, ON N2R 1G3&quot;));
        CameraUpdateFactory.newLatLngZoom(location, cameraZoom);
        Snackbar.make(findViewById(/*WHAT DO I PUT HERE?*/), &quot;Click the pin for more options&quot;, Snackbar.LENGTH_LONG).show();
    }
    }

Also, here is the activity xml code:

    &lt;fragment xmlns:android=&quot;http://schemas.android.com/apk/res/android&quot;
    xmlns:map=&quot;http://schemas.android.com/apk/res-auto&quot;
    xmlns:tools=&quot;http://schemas.android.com/tools&quot;
    android:id=&quot;@+id/map&quot;
    android:name=&quot;com.google.android.gms.maps.SupportMapFragment&quot;
    android:layout_width=&quot;match_parent&quot;
    android:layout_height=&quot;match_parent&quot;
    tools:context=&quot;ca.davesautoservice.davesautoservice.MapsActivity&quot; /&gt;

And lastly, here&#39;s the stacktrace error:

    08-03 11:42:21.333 3901-3901/? E/AndroidRuntime: FATAL EXCEPTION: main
        Process: ca.davesautoservice.davesautoservice, PID: 3901
        java.lang.NullPointerException
            at android.support.design.widget.Snackbar.&lt;init&gt;(Snackbar.java:183)
            at android.support.design.widget.Snackbar.make(Snackbar.java:215)
            at ca.davesautoservice.davesautoservice.MapsActivity.onMapReady(MapsActivity.java:48)
            at com.google.android.gms.maps.SupportMapFragment$zza$1.zza(Unknown Source)
            at com.google.android.gms.maps.internal.zzo$zza.onTransact(Unknown Source)
            at android.os.Binder.transact(Binder.java:361)
            at xz.a(:com.google.android.gms.DynamiteModulesB:82)
            at maps.ad.u$5.run(Unknown Source)
            at android.os.Handler.handleCallback(Handler.java:808)
            at android.os.Handler.dispatchMessage(Handler.java:103)
            at android.os.Looper.loop(Looper.java:193)
            at android.app.ActivityThread.main(ActivityThread.java:5333)
            at java.lang.reflect.Method.invokeNative(Native Method)
            at java.lang.reflect.Method.invoke(Method.java:515)
            at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:828)
            at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:644)
            at dalvik.system.NativeStart.main(Native Method)

Thanks for the help! :)

Making a Snackbar Without a View?

Working on a class assignment in C#, I came across a program crash without any error (except what&#39;s written in VS2010&#39;s debug window). Here is the typical code causing the crash :


    public partial class Test : Form
    {
        public Test()
        {
            InitializeComponent();
        }

        private void Test_Load(object sender, EventArgs e)
        {
            ColumnHeader header;

            header = new ColumnHeader();
            header.Text = &quot;#&quot;;
            header.TextAlign = HorizontalAlignment.Center;
            header.Width = 30;
            listView1.Columns.Add(header);

            TimerCallback tcb = this.UpdateListView;

            System.Threading.Timer updateTimer = new System.Threading.Timer(tcb, null, 0, 1000);
        }

        public void UpdateListView(object obj)
        {
            ListViewItem item;
            listView1.Items.Clear();

            for (int i = 0; i &lt; 10; i++)
            {
                item = new ListViewItem(i.ToString());

                listView1.Items.Add(item);
            }

        }
    }

... what am I missing here?

** **EDIT** **

There&#39;s no error, the program just *ends* like if I would call `System.Environment.Exit(0);`

    A first chance exception of type &#39;System.InvalidOperationException&#39; occurred in System.Windows.Forms.dll
    The program &#39;[4644] ProgramTest.vshost.exe: Managed (v4.0.30319)&#39; has exited with code 0 (0x0).
    The program &#39;[4644] ProgramTest.vshost.exe: Program Trace&#39; has exited with code 0 (0x0).

C# : &quot;A first chance exception of type &#39;System.InvalidOperationException&#39;&quot;

This just started happening three weeks or so ago.  The content of my website hasn&#39;t changed, it&#39;s just a phpBB forum using MySQL as a backend.  

Nothing has changed in well over a year but recently, every two days or so, the server just shuts down and cannot be accessed at all, I have to notify my service provider to physically restart the machine.

It seems to be tied to these SIGTERM errors I find in the logs.  Problem is I have no idea how to fix these kinds of things or find the root cause as my skills in this area are lacking.

Anyone have any ideas what could be going on?

Apache/2.2.3 (CentOS)

20051115

Linux 2.6.18-028stab057.4 #1 SMP Fri Aug 1 10:47:59 MSD 2008 x86_64

From the error log:
[Sun Nov 01 15:18:53 2009] [notice] caught SIGTERM, shutting down

Not entirely sure that&#39;s what&#39;s causing me my problems but it doesn&#39;t sound like a good thing.

I can post more log information if needed

&lt;pre&gt;
[Sun Nov 01 05:07:17 2009] [notice] Digest: generating secret for digest authentication ...
[Sun Nov 01 05:07:17 2009] [notice] Digest: done
[Sun Nov 01 05:07:19 2009] [notice] mod_python: Creating 4 session mutexes based on 10 max processes and 0 max threads.
[Sun Nov 01 05:07:19 2009] [warn] RSA server certificate CommonName (CN) `plesk&#39; does NOT match server name!?
[Sun Nov 01 05:07:19 2009] [warn] RSA server certificate CommonName (CN) `plesk&#39; does NOT match server name!?
[Sun Nov 01 05:07:19 2009] [warn] RSA server certificate CommonName (CN) `plesk&#39; does NOT match server name!?
[Sun Nov 01 05:07:19 2009] [warn] Init: SSL server IP/port conflict: default-64-6-237-192:443 (/etc/httpd/conf.d/zz010_psa_httpd.conf:83) vs. webmail:443 (/etc/httpd/conf.d/zz010_psa_httpd.conf:159)
[Sun Nov 01 05:07:19 2009] [warn] Init: You should not use name-based virtual hosts in conjunction with SSL!!
[Sun Nov 01 05:07:19 2009] [warn] WARNING: Attempt to change ServerLimit ignored during restart
[Sun Nov 01 05:07:19 2009] [notice] Apache/2.2.3 (CentOS) configured -- resuming normal operations
[Sun Nov 01 15:16:11 2009] [error] [client 127.0.0.1] Invalid method in request get
[Sun Nov 01 15:18:53 2009] [notice] caught SIGTERM, shutting down
[Sun Nov 01 15:19:27 2009] [notice] suEXEC mechanism enabled (wrapper: /usr/sbin/suexec)
[Sun Nov 01 15:19:27 2009] [warn] RSA server certificate CommonName (CN) `plesk&#39; does NOT match server name!?
[Sun Nov 01 15:19:27 2009] [warn] RSA server certificate CommonName (CN) `plesk&#39; does NOT match server name!?
[Sun Nov 01 15:19:27 2009] [warn] RSA server certificate CommonName (CN) `plesk&#39; does NOT match server name!?
[Sun Nov 01 15:19:27 2009] [warn] Init: SSL server IP/port conflict: default-64-6-237-192:443 (/etc/httpd/conf.d/zz010_psa_httpd.conf:83) vs. webmail:443 (/etc/httpd/conf.d/zz010_psa_httpd.conf:159)
[Sun Nov 01 15:19:27 2009] [warn] Init: You should not use name-based virtual hosts in conjunction with SSL!!
[Sun Nov 01 15:19:27 2009] [notice] Digest: generating secret for digest authentication ...
[Sun Nov 01 15:19:27 2009] [notice] Digest: done
[Sun Nov 01 15:19:27 2009] [notice] mod_python: Creating 4 session mutexes based on 10 max processes and 0 max threads.
[Sun Nov 01 15:19:27 2009] [warn] RSA server certificate CommonName (CN) `plesk&#39; does NOT match server name!?
[Sun Nov 01 15:19:27 2009] [warn] RSA server certificate CommonName (CN) `plesk&#39; does NOT match server name!?
[Sun Nov 01 15:19:27 2009] [warn] RSA server certificate CommonName (CN) `plesk&#39; does NOT match server name!?
[Sun Nov 01 15:19:27 2009] [warn] Init: SSL server IP/port conflict: default-64-6-237-192:443 (/etc/httpd/conf.d/zz010_psa_httpd.conf:83) vs. webmail:443 (/etc/httpd/conf.d/zz010_psa_httpd.conf:159)
[Sun Nov 01 15:19:27 2009] [warn] Init: You should not use name-based virtual hosts in conjunction with SSL!!
[Sun Nov 01 15:19:27 2009] [notice] Apache/2.2.3 (CentOS) configured -- resuming normal operations
[Sun Nov 01 16:42:31 2009] [error] [client ::1] Directory index forbidden by Options directive: /var/www/html/
[Sun Nov 01 16:47:25 2009] [error] [client ::1] Directory index forbidden by Options directive: /var/www/html/
[Sun Nov 01 16:59:22 2009] [error] [client ::1] Directory index forbidden by Options directive: /var/www/html/
[Sun Nov 01 17:37:42 2009] [error] [client ::1] Directory index forbidden by Options directive: /var/www/html/
[Sun Nov 01 17:44:54 2009] [error] [client ::1] Directory index forbidden by Options directive: /var/www/html/
[Sun Nov 01 17:44:55 2009] [error] [client ::1] Directory index forbidden by Options directive: /var/www/html/
[Sun Nov 01 17:44:56 2009] [error] [client ::1] Directory index forbidden by Options directive: /var/www/html/
[Sun Nov 01 18:14:45 2009] [error] [client ::1] Directory index forbidden by Options directive: /var/www/html/
[Sun Nov 01 18:40:30 2009] [error] [client ::1] Directory index forbidden by Options directive: /var/www/html/
[Sun Nov 01 20:10:59 2009] [error] [client ::1] Directory index forbidden by Options directive: /var/www/html/
[Sun Nov 01 20:35:10 2009] [error] [client ::1] Directory index forbidden by Options directive: /var/www/html/
[Sun Nov 01 20:43:07 2009] [error] [client ::1] Directory index forbidden by Options directive: /var/www/html/
[Sun Nov 01 20:43:46 2009] [error] [client ::1] Directory index forbidden by Options directive: /var/www/html/
[Sun Nov 01 21:25:39 2009] [error] [client ::1] Directory index forbidden by Options directive: /var/www/html/
[Sun Nov 01 21:26:03 2009] [error] [client ::1] Directory index forbidden by Options directive: /var/www/html/
[Sun Nov 01 21:56:57 2009] [error] [client ::1] Directory index forbidden by Options directive: /var/www/html/
[Sun Nov 01 22:21:02 2009] [error] [client ::1] Directory index forbidden by Options directive: /var/www/html/
[Sun Nov 01 22:25:16 2009] [error] server reached MaxClients setting, consider raising the MaxClients setting
[Sun Nov 01 22:25:17 2009] [error] [client ::1] Directory index forbidden by Options directive: /var/www/html/
[Sun Nov 01 22:25:18 2009] [error] [client ::1] Directory index forbidden by Options directive: /var/www/html/
[Sun Nov 01 22:25:20 2009] [error] [client ::1] Directory index forbidden by Options directive: /var/www/html/
[Sun Nov 01 22:25:21 2009] [error] [client ::1] Directory index forbidden by Options directive: /var/www/html/
[Sun Nov 01 22:25:22 2009] [error] [client ::1] Directory index forbidden by Options directive: /var/www/html/
[Sun Nov 01 22:46:47 2009] [error] [client ::1] Directory index forbidden by Options directive: /var/www/html/
[Sun Nov 01 22:52:56 2009] [error] [client ::1] Directory index forbidden by Options directive: /var/www/html/
[Sun Nov 01 22:56:07 2009] [error] [client ::1] Directory index forbidden by Options directive: /var/www/html/
[Sun Nov 01 22:56:51 2009] [error] [client ::1] Directory index forbidden by Options directive: /var/www/html/
[Sun Nov 01 22:56:58 2009] [error] [client ::1] Directory index forbidden by Options directive: /var/www/html/
[Sun Nov 01 23:00:41 2009] [error] [client ::1] Directory index forbidden by Options directive: /var/www/html/
[Sun Nov 01 23:09:59 2009] [error] [client ::1] Directory index forbidden by Options directive: /var/www/html/
[Sun Nov 01 23:23:49 2009] [error] [client ::1] Directory index forbidden by Options directive: /var/www/html/
[Sun Nov 01 23:27:14 2009] [error] [client ::1] Directory index forbidden by Options directive: /var/www/html/
[Sun Nov 01 23:36:25 2009] [error] [client ::1] Directory index forbidden by Options directive: /var/www/html/
[Sun Nov 01 23:54:06 2009] [error] [client ::1] Directory index forbidden by Options directive: /var/www/html/
[Mon Nov 02 00:12:44 2009] [error] [client ::1] Directory index forbidden by Options directive: /var/www/html/
[Mon Nov 02 00:12:50 2009] [error] [client ::1] Directory index forbidden by Options directive: /var/www/html/
[Mon Nov 02 00:13:23 2009] [error] [client ::1] Directory index forbidden by Options directive: /var/www/html/
[Mon Nov 02 00:39:06 2009] [error] [client ::1] Directory index forbidden by Options directive: /var/www/html/
[Mon Nov 02 00:52:50 2009] [error] [client ::1] Directory index forbidden by Options directive: /var/www/html/
[Mon Nov 02 00:53:02 2009] [error] [client ::1] Directory index forbidden by Options directive: /var/www/html/
[Mon Nov 02 01:13:38 2009] [error] [client ::1] Directory index forbidden by Options directive: /var/www/html/
[Mon Nov 02 01:13:39 2009] [error] [client ::1] Directory index forbidden by Options directive: /var/www/html/
[Mon Nov 02 01:13:40 2009] [error] [client ::1] Directory index forbidden by Options directive: /var/www/html/
[Mon Nov 02 01:23:01 2009] [error] [client ::1] Directory index forbidden by Options directive: /var/www/html/
[Mon Nov 02 01:43:47 2009] [error] [client ::1] Directory index forbidden by Options directive: /var/www/html/
[Mon Nov 02 01:45:51 2009] [error] [client ::1] Directory index forbidden by Options directive: /var/www/html/
[Mon Nov 02 01:46:27 2009] [error] [client ::1] Directory index forbidden by Options directive: /var/www/html/
[Mon Nov 02 01:47:25 2009] [error] [client ::1] Directory index forbidden by Options directive: /var/www/html/
[Mon Nov 02 02:23:02 2009] [error] [client ::1] Directory index forbidden by Options directive: /var/www/html/
[Mon Nov 02 02:25:37 2009] [error] [client ::1] Directory index forbidden by Options directive: /var/www/html/
[Mon Nov 02 02:25:38 2009] [error] [client ::1] Directory index forbidden by Options directive: /var/www/html/
[Mon Nov 02 02:52:29 2009] [error] [client ::1] Directory index forbidden by Options directive: /var/www/html/
[Mon Nov 02 02:52:51 2009] [error] [client ::1] Directory index forbidden by Options directive: /var/www/html/
[Mon Nov 02 03:49:29 2009] [error] [client ::1] Directory index forbidden by Options directive: /var/www/html/
[Mon Nov 02 03:49:48 2009] [error] [client ::1] Directory index forbidden by Options directive: /var/www/html/
[Mon Nov 02 04:35:33 2009] [error] [client ::1] Directory index forbidden by Options directive: /var/www/html/
[Mon Nov 02 04:46:01 2009] [error] [client 66.96.201.63] File does not exist: /var/www/vhosts/default/htdocs/README
[Mon Nov 02 04:46:01 2009] [error] [client 66.96.201.63] File does not exist: /var/www/vhosts/default/htdocs/horde
[Mon Nov 02 04:46:01 2009] [error] [client 66.96.201.63] File does not exist: /var/www/vhosts/default/htdocs/horde2
[Mon Nov 02 04:46:01 2009] [error] [client 66.96.201.63] File does not exist: /var/www/vhosts/default/htdocs/horde3
[Mon Nov 02 04:46:01 2009] [error] [client 66.96.201.63] File does not exist: /var/www/vhosts/default/htdocs/horde-3.0.9
[Mon Nov 02 04:46:01 2009] [error] [client 66.96.201.63] File does not exist: /var/www/vhosts/default/htdocs/Horde
[Mon Nov 02 04:46:02 2009] [error] [client ::1] Directory index forbidden by Options directive: /var/www/html/
[Mon Nov 02 05:01:06 2009] [error] [client 58.246.73.74] File does not exist: /var/www/vhosts/default/htdocs/README
[Mon Nov 02 05:01:06 2009] [error] [client 58.246.73.74] File does not exist: /var/www/vhosts/default/htdocs/horde
[Mon Nov 02 05:01:07 2009] [error] [client 58.246.73.74] File does not exist: /var/www/vhosts/default/htdocs/horde2
[Mon Nov 02 05:01:08 2009] [error] [client 58.246.73.74] File does not exist: /var/www/vhosts/default/htdocs/horde3
[Mon Nov 02 05:01:08 2009] [error] [client 58.246.73.74] File does not exist: /var/www/vhosts/default/htdocs/horde-3.0.9
[Mon Nov 02 05:01:09 2009] [error] [client 58.246.73.74] File does not exist: /var/www/vhosts/default/htdocs/Horde
[Mon Nov 02 05:01:09 2009] [error] [client ::1] Directory index forbidden by Options directive: /var/www/html/
[Mon Nov 02 05:01:10 2009] [error] [client ::1] Directory index forbidden by Options directive: /var/www/html/
[Mon Nov 02 05:01:11 2009] [error] [client ::1] Directory index forbidden by Options directive: /var/www/html/
[Mon Nov 02 09:17:58 2009] [notice] caught SIGTERM, shutting down
[Mon Nov 02 09:18:58 2009] [notice] suEXEC mechanism enabled (wrapper: /usr/sbin/suexec)
[Mon Nov 02 09:18:58 2009] [warn] RSA server certificate CommonName (CN) `plesk&#39; does NOT match server name!?
[Mon Nov 02 09:18:58 2009] [warn] RSA server certificate CommonName (CN) `plesk&#39; does NOT match server name!?
[Mon Nov 02 09:18:58 2009] [warn] RSA server certificate CommonName (CN) `plesk&#39; does NOT match server name!?
[Mon Nov 02 09:18:58 2009] [warn] Init: SSL server IP/port conflict: default-64-6-237-192:443 (/etc/httpd/conf.d/zz010_psa_httpd.conf:83) vs. webmail:443 (/etc/httpd/conf.d/zz010_psa_httpd.conf:159)
[Mon Nov 02 09:18:58 2009] [warn] Init: You should not use name-based virtual hosts in conjunction with SSL!!
[Mon Nov 02 09:18:58 2009] [notice] Digest: generating secret for digest authentication ...
[Mon Nov 02 09:18:58 2009] [notice] Digest: done
[Mon Nov 02 09:18:58 2009] [notice] mod_python: Creating 4 session mutexes based on 10 max processes and 0 max threads.
[Mon Nov 02 09:18:58 2009] [warn] RSA server certificate CommonName (CN) `plesk&#39; does NOT match server name!?
[Mon Nov 02 09:18:58 2009] [warn] RSA server certificate CommonName (CN) `plesk&#39; does NOT match server name!?
[Mon Nov 02 09:18:58 2009] [warn] RSA server certificate CommonName (CN) `plesk&#39; does NOT match server name!?
[Mon Nov 02 09:18:58 2009] [warn] Init: SSL server IP/port conflict: default-64-6-237-192:443 (/etc/httpd/conf.d/zz010_psa_httpd.conf:83) vs. webmail:443 (/etc/httpd/conf.d/zz010_psa_httpd.conf:159)
[Mon Nov 02 09:18:58 2009] [warn] Init: You should not use name-based virtual hosts in conjunction with SSL!!
[Mon Nov 02 09:18:58 2009] [notice] Apache/2.2.3 (CentOS) configured -- resuming normal operations
[Mon Nov 02 09:32:34 2009] [error] [client ::1] Directory index forbidden by Options directive: /var/www/html/
&lt;/pre&gt;


Apache server keeps crashing, &quot;caught SIGTERM, shutting down&quot;

Recently we came across a situation where we wanted to see the debug info from the app which a user has on his device. So, what I am looking for is a way to find the log on the device, paste it as inline text on a mail and allow the user to send it..

Any ideas? Here are the questions again..
1)Find a debug log on the device
2)open the file and attach the contents of the file as inline text in to the mail.
3)Allow the user to email it the next time app launches..

Thanks,

iOS crash log catch, debug info.. Catch and send via email to the Dev team

My application crashed with the reason:

&gt; -[MyClassName copyWithZone:]  unrecognized selector sent to instance

I have two classes. Let&#39;s say Class1 and Class2.

Class1 looks like:

###Class1.h

    @interface Class1 : NSObject {
        NSString *imagemd5CheckSum;
        UIImage *image;
        NSData *fileChunkData;
    }

    @property (nonatomic, copy)NSString *imagemd5CheckSum;
    @property (nonatomic, copy)UIImage *image;
    @property (nonatomic, copy)NSData *fileChunkData;

    @end


###Class1.m

    @implementation Class1

    @synthesize image;
    @synthesize fileChunkData;
    @synthesize imagemd5CheckSum;

    -(id) init{
        [self setImage:nil];
        [self setFileChunkData:nil];
        [self setImagemd5CheckSum:@&quot;&quot;];

        return self;
    }

    -(void)dealloc{
        [imagemd5CheckSum release];
        [image release];
        [fileChunkData release];

        fileChunkData = nil;
        imagemd5CheckSum = nil;
        image = nil;

        [super dealloc];
    }
    @end

**

&gt; Class2 looks like

**

###Class2.h
*********

    #import &quot;Class2.h&quot;
    @interface Class2 : NSObject {
        Class1 *obj1;
        Class1 *obj2;
        Class1 *obj3;
    }

    @property (nonatomic, copy)Class1 *obj1;
    @property (nonatomic, copy)Class1 *obj2;
    @property (nonatomic, copy)Class1 *obj3;

    @end

###Class2.m
********

    @implementation Class2

    @synthesize obj1,obj2,obj3;

    -(id) init{
        [self setObj1:nil];
        [self setObj2:nil];
        [self setObj3:nil];

        return self;
    }

    -(void)dealloc{
        [obj1 release];
        [obj2 release];
        [obj3 release];

        obj1 = nil;
        obj2 = nil;
        obj3 = nil;

        [super dealloc];
    }
    @end

###Crashed Situation

    Class2 *class2 = [[Class2 alloc] init];

    Class1 *class1 = [[Class1 alloc] init];

    [class1 setImagemd5CheckSum:@&quot;this is md5&quot;];
    [class1 setImage:myimage];
    [class1 setFileChunkData:myData];

    [class2 setObj1:class1]; // This line is crashed..

...

When I called `[class2 setObj1:class1];`, the application crashed with reason:

&gt; -[Class1 copyWithZone:]  unrecognized selector sent to instance

How can I fix this problem?


-[MyClassName copyWithZone:] unrecognized selector sent to instance

My android app is getting restarted after force close, through my entire application which consist of 20 activities, I am relying on static data created on a main activity. So once the app is getting crashed all my static data is getting lost and when the app auto restarts practically it does not have any essential data to operate upon.

My question is, upon crash i want this things to happen

1. If the app crashes, I don&#39;t want the app to restart rather I want all the stack/task related with this app to be wiped out of memory. A user can restart it from the beginning again
2. If I can&#39;t prevent app from restart, at least I want to preserve essential data so that when the app restarts I can assign them back. Also when it restarts I want my app to start from the main activity.

I know when activity crashes android system will bring next activity in stack to foreground, and this is reason for my app producing redundant results. also i went through the android developers but only thing i got to know was setting up an attribute in Manifest `android:finishOnTaskLaunch=&quot;true&quot;`. But unfortunately this is of no help to me. I would appreciate your help on solving this issue, and also letting me know the cause and analysis.

Android App Restarts upon Crash/force close

After update to macOS Sierra, `git-gui` command crashes with an error:

&lt;pre&gt;
Wish[23862:202062] *** Terminating app due to uncaught exception &#39;CALayerInvalidGeometry&#39;, reason: &#39;CALayer position contains NaN: [0 nan]&#39;
*** First throw call stack:
(
	0   CoreFoundation                      0x00007fff8cd9252b __exceptionPreprocess + 171
	1   libobjc.A.dylib                     0x00007fffa146acad objc_exception_throw + 48
	2   CoreFoundation                      0x00007fff8ce10a0d +[NSException raise:format:] + 205
	3   QuartzCore                          0x00007fff92938980 _ZN2CA5Layer12set_positionERKNS_4Vec2IdEEb + 152
	4   QuartzCore                          0x00007fff92938af5 -[CALayer setPosition:] + 44
	5   QuartzCore                          0x00007fff9293914b -[CALayer setFrame:] + 644
	6   CoreUI                              0x00007fff986e2112 _ZN20CUICoreThemeRenderer26MakeOrUpdateScrollBarLayerEPK13CUIDescriptoraPP7CALayer + 1284
	7   CoreUI                              0x00007fff986de317 _ZN20CUICoreThemeRenderer19CreateOrUpdateLayerEPK13CUIDescriptorPP7CALayer + 1755
	8   CoreUI                              0x00007fff986604d1 _ZN11CUIRenderer19CreateOrUpdateLayerEPK14__CFDictionaryPP7CALayer + 175
	9   CoreUI                              0x00007fff98663185 CUICreateOrUpdateLayer + 221
	10  AppKit                              0x00007fff8b3c7623 -[NSCompositeAppearance _callCoreUIWithBlock:options:] + 226
	11  AppKit                              0x00007fff8aa74a9d -[NSAppearance _createOrUpdateLayer:options:] + 76
	12  AppKit                              0x00007fff8aced143 -[NSScrollerImp _animateToRolloverState] + 274
	13  AppKit                              0x00007fff8acacb79 __49-[NSScrollerImp _installDelayedRolloverAnimation]_block_invoke + 673
	14  AppKit                              0x00007fff8ab73331 -[NSScrollerImp _doWork:] + 15
	15  Foundation                          0x00007fff8e770c88 __NSFireDelayedPerform + 417
	16  CoreFoundation                      0x00007fff8cd11e14 __CFRUNLOOP_IS_CALLING_OUT_TO_A_TIMER_CALLBACK_FUNCTION__ + 20
	17  CoreFoundation                      0x00007fff8cd11a9f __CFRunLoopDoTimer + 1071
	18  CoreFoundation                      0x00007fff8cd115fa __CFRunLoopDoTimers + 298
	19  CoreFoundation                      0x00007fff8cd09021 __CFRunLoopRun + 2065
	20  CoreFoundation                      0x00007fff8cd085b4 CFRunLoopRunSpecific + 420
	21  Tcl                                 0x0000000101834b43 Tcl_WaitForEvent + 314
	22  Tcl                                 0x00000001018045cd Tcl_DoOneEvent + 274
	23  Tk                                  0x0000000101672f4f Tk_MainLoop + 33
	24  Tk                                  0x000000010167ea5b Tk_MainEx + 1566
	25  Wish                                0x0000000101658542 Wish + 9538
	26  libdyld.dylib                       0x00007fffa1d48255 start + 1
)
libc++abi.dylib: terminating with uncaught exception of type NSException
error: git-gui died of signal 6
&lt;/pre&gt;
Does anybody have the same problem and a solution for this?

git-gui command crashes on macOS Sierra

I&#39;m trying to have an helper class that presents an `UIAlertController`. Since it&#39;s a helper class, I want it to work regardless of the view hierarchy, and with no information about it. I&#39;m able to show the alert, but when it&#39;s being dismissed, the app crashed with:

    *** Terminating app due to uncaught exception &#39;NSInternalInconsistencyException&#39;,
    reason: &#39;Trying to dismiss UIAlertController &lt;UIAlertController: 0x135d70d80&gt;
     with unknown presenter.&#39;

I&#39;m creating the popup with:

    guard let window = UIApplication.shared.keyWindow else { return }
    let view = UIView()
    view.isUserInteractionEnabled = true
    window.insertSubview(view, at: 0)
    window.bringSubview(toFront: view)
    // add full screen constraints to view ...

    let controller = UIAlertController(
      title: &quot;confirm deletion?&quot;,
      message: &quot;:)&quot;,
      preferredStyle: .alert
    )

    let deleteAction = UIAlertAction(
      title: &quot;yes&quot;,
      style: .destructive,
      handler: { _ in
        DispatchQueue.main.async {
          view.removeFromSuperview()
          completion()
        }
      }
    )
    controller.addAction(deleteAction)

    view.insertSubview(controller.view, at: 0)
    view.bringSubview(toFront: controller.view)
    // add centering constraints to controller.view ...

When I tap `yes`, the app will crash and the handler is not being hit before the crash. I can&#39;t present the `UIAlertController` because this would be dependent of the current view hierarchy, while I want the popup to be independant


EDIT: Swift solution
Thanks @Vlad for the idea. It seems that operating in a separate window is much more simple. So here is a working Swift solution:

    class Popup {
      private var alertWindow: UIWindow
      static var shared = Popup()
      
      init() {
        alertWindow = UIWindow(frame: UIScreen.main.bounds)
        alertWindow.rootViewController = UIViewController()
        alertWindow.windowLevel = UIWindowLevelAlert + 1
        alertWindow.makeKeyAndVisible()
        alertWindow.isHidden = true
      }
    
      private func show(completion: @escaping ((Bool) -&gt; Void)) {
        let controller = UIAlertController(
          title: &quot;Want to do it?&quot;,
          message: &quot;message&quot;,
          preferredStyle: .alert
        )
    
        let yesAction = UIAlertAction(
          title: &quot;Yes&quot;,
          style: .default,
          handler: { _ in
            DispatchQueue.main.async {
              self.alertWindow.isHidden = true
              completion(true)
            }
        })
    
        let noAction = UIAlertAction(
          title: &quot;Not now&quot;,
          style: .destructive,
          handler: { _ in
            DispatchQueue.main.async {
              self.alertWindow.isHidden = true
              completion(false)
            }
        })
    
        controller.addAction(noAction)
        controller.addAction(yesAction)
        self.alertWindow.isHidden = false
        alertWindow.rootViewController?.present(controller, animated: false)
      }
    }


Present UIAlertController on top of everything regardless of the view hierarchy

Sometimes my iPhone application crashes with a weird crashlog, that reads exception code is 0x8badf00d. The stacktraces show random snapshots of app execution, but nothing suspicious. This happens very rarely and I&#39;m not able to find out how to reproduce it. Does anybody know more about this kind of exception and exception code?  
  
Here is an excerpt from my crashlogs:

&gt; Exception Type:  00000020   
&gt; Exception Codes: 0x8badf00d  
&gt; Highlighted Thread:  0   
&gt; 
&gt; Application Specific Information:   
&gt; Failed to deactivate
&gt; 
&gt; Thread 0:   
&gt; ...   
&gt; &lt; nothing suspicious here &gt;  
&gt; ...
&gt; 
&gt; Unknown thread crashed with unknown flavor: 5, state_count: 1




What does 8badf00d mean?

[This code sample][1] is not able to be compiled. Any work arounds out there?

    using System;
    using System.Collections.Generic;
    using System.Linq;
    using System.Text;
    
    namespace ConsoleApplication1
    {
        using church = Func&lt;dynamic, dynamic, dynamic&gt;;
    
        class Program
        {
            static void Main(string[] args)
            {
                church True = (a, b) =&gt; a;
                church False = (a, b) =&gt; b;
    
                Func&lt;church, church, church&gt; And = (x, y) =&gt; x(y(True, False), False);
            }
        }
    }

&gt; *Error 6 Internal Compiler Error* (0xc0000005 at address 5476A4CC): likely culprit is &#39;EMITIL&#39;. An internal error has occurred in the compiler. To work around this problem, try simplifying or changing the program near the locations listed below. Locations at the top of the list are closer to the point at which the internal error occurred. Errors such as this can be reported to Microsoft by using the /errorreport option. TestApplication



  [1]: http://pastie.org/2757961

C# 4.0 Compiler Crash

My iOS app accesses the user&#39;s Photos with `ALAssetsLibrary`. When I change the privacy settings for the app (Settings → Privacy → Photos), the app gets killed by system (`SIGKILL`). Is this a bug?

All Crash Solutions on Gang of Coders

Total of 43 Crash Solutions