Random crash (iOS 13/14/15/16)

[chris087]

When taking a photo and click "Select photo". It randomly crash, (white screen and app restarts.)
It happen more often when some background apps are running.

My code:
` public async takePhoto() {

return new Promise<any>((resolve, reject) => {

      // Take a photo
       Camera.getPhoto({
        resultType: CameraResultType.Uri,
        source: CameraSource.Camera,
        quality: 80,
        width: 1024,
        saveToGallery: false
      }).then((res: any) => {
    
        let img = this.savePicture(res);
        console.log("Photo taken");
        console.log(img);

        resolve(img);

      })
      .catch(error => {
         console.log("Photo not taken");
         reject(error);
      });

    
});

}

private savePicture(photo: Photo) {
return {
webviewPath: photo.webPath,
data: '',
cssClass: '',
};
}`

Error log:

2022-10-04 09:39:49.597416+0200 App[61959:2477260] [XPC] Handle connection with error: Connection interrupted
2022-10-04 09:39:49.640079+0200 App[61959:2477259] [ServicesDaemonManager] interruptionHandler is called. -[FontServicesDaemonManager connection]_block_invoke
2022-10-04 09:39:50.420514+0200 App[61959:2477255] [assertion] Error acquiring assertion: <Error Domain=RBSAssertionErrorDomain Code=2 "Specified target process does not exist" UserInfo={NSLocalizedFailureReason=Specified target process does not exist}>
2022-10-04 09:39:50.420610+0200 App[61959:2477255] [ProcessSuspension] 0x110020360 - ProcessAssertion::acquireSync Failed to acquire RBS assertion 'GPUProcess Background Assertion' for process with PID=61970, error: Error Domain=RBSAssertionErrorDomain Code=2 "Specified target process does not exist" UserInfo={NSLocalizedFailureReason=Specified target process does not exist}
2022-10-04 09:39:50.422690+0200 App[61959:2477255] [assertion] Error acquiring assertion: <Error Domain=RBSAssertionErrorDomain Code=2 "Specified target process does not exist" UserInfo={NSLocalizedFailureReason=Specified target process does not exist}>

Info Ionic:

Ionic:

Ionic CLI : 6.20.1 (/opt/homebrew/lib/node_modules/@ionic/cli)
Ionic Framework : @ionic/angular 6.2.5
@angular-devkit/build-angular : 14.2.1
@angular-devkit/schematics : 14.2.1
@angular/cli : 14.2.1
@ionic/angular-toolkit : 6.1.0

Capacitor:

Capacitor CLI : 4.1.0
@capacitor/android : not installed
@capacitor/core : 4.1.0
@capacitor/ios : 4.1.0

[jcesarmobile]

Taking pictures requires a lot of memory, if the device is already low on memory because of background apps running then this can happen, the webview goes out of memory and restarts itself and capacitor reloads current url.

[chris087]

This is not completely true, cause I can see my memory usage; And have 500 MBs free (photo takes +- 120 MB).

[chris087]

Just crashed with 588 MB free RAM;

{"coords":{"accuracy":14.642268067987077,"speed":-1,"altitude":16.234542846679688,"altitudeAccuracy":25.084850311279297,"latitude":52.734988838405144,"heading":-1,"longitude":6.9070808946711626},"timestamp":1664952672345}
⚡️ To Native -> Camera getPhoto 74231214
2022-10-05 08:52:00.713505+0200 App[71657:2843584] [Process] 0x1130009d0 - [PID=71661] WebProcessProxy::didClose: (web process 0 crash)
2022-10-05 08:52:00.714189+0200 App[71657:2843584] [Process] 0x1130009d0 - [PID=71661] WebProcessProxy::processDidTerminateOrFailedToLaunch: reason=Crash
2022-10-05 08:52:00.719714+0200 App[71657:2843584] [ProcessSuspension] 0x112020e40 - ProcessAssertion: Failed to acquire RBS Background assertion 'ConnectionTerminationWatchdog' for process because PID 0 is invalid
2022-10-05 08:52:00.723325+0200 App[71657:2853676] [ProcessSuspension] 0x112020e40 - ProcessAssertion::acquireSync Failed to acquire RBS assertion 'ConnectionTerminationWatchdog' for process with PID=0, error: (null)
2022-10-05 08:52:00.730962+0200 App[71657:2843584] [Process] 0x10382b218 - [pageProxyID=7, webPageID=8, PID=71661] WebPageProxy::processDidTerminate: (pid 71661), reason=Crash
2022-10-05 08:52:00.814516+0200 App[71657:2843584] [Loading] 0x10382b218 - [pageProxyID=7, webPageID=8, PID=71661] WebPageProxy::dispatchProcessDidTerminate: reason=Crash
2022-10-05 08:52:00.962577+0200 App[71657:2853676] [assertion] Error acquiring assertion: <Error Domain=RBSServiceErrorDomain Code=1 "target is not running or doesn't have entitlement com.apple.runningboard.assertions.webkit" UserInfo={NSLocalizedFailureReason=target is not running or doesn't have entitlement com.apple.runningboard.assertions.webkit}>
2022-10-05 08:52:00.962742+0200 App[71657:2853676] [ProcessSuspension] 0x112020180 - ProcessAssertion::acquireSync Failed to acquire RBS assertion 'GPUProcess Background Assertion' for process with PID=71664, error: Error Domain=RBSServiceErrorDomain Code=1 "target is not running or doesn't have entitlement com.apple.runningboard.assertions.webkit" UserInfo={NSLocalizedFailureReason=target is not running or doesn't have entitlement com.apple.runningboard.assertions.webkit}
2022-10-05 08:52:01.422541+0200 App[71657:2843584] [Process] 0x112058220 - GPUProcessProxy::didClose:
2022-10-05 08:52:01.424747+0200 App[71657:2843584] [Process] 0x112058220 - GPUProcessProxy::gpuProcessExited: reason=Crash
2022-10-05 08:52:01.424830+0200 App[71657:2843584] [Process] 0x113001ac0 - [PID=0] WebProcessProxy::gpuProcessExited: reason=Crash
2022-10-05 08:52:01.427237+0200 App[71657:2843584] [ProcessSuspension] ProcessAssertion::remainingRunTimeInSeconds failed to get handle for process with PID=71664

[jcesarmobile]

Either way webViewWebContentProcessDidTerminate is being called, we have no control over when it would be called, in some iOS versions it seems to be called more frequently than in others, ever if there is enough memory.
If you have a reliable reproduction you should report it to Apple on the webkit bug tracker https://bugs.webkit.org/.

[ionitron-bot]

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