react-native-vision-camera: 🐛App crashed after scanning a qrcode

What’s happening?

I have a crash after scanning the QR code. I haven’t found the reason yet. I have released the relevant code and logs. I hope someone can answer it.

Reproduceable Code

const onAuth = async () => {
    const grantedStatus = await Camera.requestCameraPermission();
    if (grantedStatus === 'granted') {
      setHasCameraPermit(true);
    } else {
      setHasCameraPermit(false);
    }
  };
  useEffect(() => {
    onAuth();
  }, []);

  const codeScanner = useCodeScanner({
    codeTypes: ['qr'],
    onCodeScanned: codeData => {
      if (codeData[0].value) {
        verificationCodeData.current = codeData[0].value;
        if (source === 'fromScanIcon') {
          scanCodeFromScanIcon();
        } else if (source === 'fromBindButton') {
          scanCodeFromBindButton();
        }
      }
    },
  });
       
      {device != null && HasCameraPermit (
        <Camera
          photo={false}
          video={false}
          isActive={isFocused}
          device={device}
          codeScanner={codeScanner}
          style={StyleSheet.absoluteFill}
          torch={TorchMode}
        />
      )}

Relevant log output

--------- beginning of crash
2023-11-21 11:34:14.044 18948-22275 libc                    com.scan                          A  Fatal signal 11 (SIGSEGV), code 1 (SEGV_MAPERR), fault addr 0x77c20bc0f7 in tid 22275 (pool-10-thread-), pid 18948 (com.scan)
2023-11-21 11:34:14.078 18948-22278 BufferQueueProducer     com.scan                          E  [ImageReader-1280x720f23m2-18948-18](id:4a040000001e,api:4,p:1554,c:18948) queueBuffer: BufferQueue has been abandoned
2023-11-21 11:34:14.086 18948-22368 BufferQueueProducer     com.scan                          E  [ImageReader-1280x720f23m2-18948-18](id:4a040000001e,api:4,p:1554,c:18948) queueBuffer: BufferQueue has been abandoned
2023-11-21 11:34:14.117 18948-22368 BufferQueueProducer     com.scan                          E  [ImageReader-1280x720f23m2-18948-18](id:4a040000001e,api:4,p:1554,c:18948) queueBuffer: BufferQueue has been abandoned
2023-11-21 11:34:14.185 18948-18961 BufferQueueProducer     com.scan                          E  [ImageReader-1280x720f23m2-18948-18](id:4a040000001e,api:4,p:1554,c:18948) queueBuffer: BufferQueue has been abandoned
2023-11-21 11:34:14.189 18948-22278 BufferQueueProducer     com.scan                          E  [ImageReader-1280x720f23m2-18948-18](id:4a040000001e,api:4,p:1554,c:18948) queueBuffer: BufferQueue has been abandoned
2023-11-21 11:34:14.216 18948-22278 BufferQueueProducer     com.scan                          E  [ImageReader-1280x720f23m2-18948-18](id:4a040000001e,api:4,p:1554,c:18948) queueBuffer: BufferQueue has been abandoned
---------------------------- PROCESS STARTED (24847) for package com.scan ----------------------------
2023-11-21 11:34:14.249 18948-22278 BufferQueueProducer     com.scan                          E  [ImageReader-1280x720f23m2-18948-18](id:4a040000001e,api:4,p:1554,c:18948) queueBuffer: BufferQueue has been abandoned
2023-11-21 11:34:14.284 18948-22278 BufferQueueProducer     com.scan                          E  [ImageReader-1280x720f23m2-18948-18](id:4a040000001e,api:4,p:1554,c:18948) queueBuffer: BufferQueue has been abandoned
2023-11-21 11:34:14.531 24845-24845 DEBUG                   pid-24845                            A  Cmdline: com.scan
2023-11-21 11:34:14.531 24845-24845 DEBUG                   pid-24845                            A  pid: 18948, tid: 22275, name: pool-10-thread-  >>> com.scan <<<
2023-11-21 11:34:14.531 24845-24845 DEBUG                   pid-24845                            A        #00 pc 00000000000ed660  /data/app/~~Pua-MPb3_YSekKggq0wYvw==/com.scan-GEIEq0XRBLMCfIwCAOPiMw==/lib/arm64/libbarhopper_v3.so (BuildId: cf64ac3d5cfd71b04d3bc4112d678e48)
2023-11-21 11:34:14.531 24845-24845 DEBUG                   pid-24845                            A        #01 pc 00000000000d03c8  /data/app/~~Pua-MPb3_YSekKggq0wYvw==/com.scan-GEIEq0XRBLMCfIwCAOPiMw==/lib/arm64/libbarhopper_v3.so (BuildId: cf64ac3d5cfd71b04d3bc4112d678e48)
2023-11-21 11:34:14.531 24845-24845 DEBUG                   pid-24845                            A        #02 pc 00000000000ca240  /data/app/~~Pua-MPb3_YSekKggq0wYvw==/com.scan-GEIEq0XRBLMCfIwCAOPiMw==/lib/arm64/libbarhopper_v3.so (BuildId: cf64ac3d5cfd71b04d3bc4112d678e48)
2023-11-21 11:34:14.531 24845-24845 DEBUG                   pid-24845                            A        #03 pc 00000000000c9f64  /data/app/~~Pua-MPb3_YSekKggq0wYvw==/com.scan-GEIEq0XRBLMCfIwCAOPiMw==/lib/arm64/libbarhopper_v3.so (BuildId: cf64ac3d5cfd71b04d3bc4112d678e48)
2023-11-21 11:34:14.531 24845-24845 DEBUG                   pid-24845                            A        #04 pc 00000000000ca4f0  /data/app/~~Pua-MPb3_YSekKggq0wYvw==/com.scan-GEIEq0XRBLMCfIwCAOPiMw==/lib/arm64/libbarhopper_v3.so (BuildId: cf64ac3d5cfd71b04d3bc4112d678e48)
2023-11-21 11:34:14.531 24845-24845 DEBUG                   pid-24845                            A        #05 pc 00000000000c8aa4  /data/app/~~Pua-MPb3_YSekKggq0wYvw==/com.scan-GEIEq0XRBLMCfIwCAOPiMw==/lib/arm64/libbarhopper_v3.so (BuildId: cf64ac3d5cfd71b04d3bc4112d678e48)
2023-11-21 11:34:14.531 24845-24845 DEBUG                   pid-24845                            A        #06 pc 00000000000c8b44  /data/app/~~Pua-MPb3_YSekKggq0wYvw==/com.scan-GEIEq0XRBLMCfIwCAOPiMw==/lib/arm64/libbarhopper_v3.so (Java_com_google_android_libraries_barhopper_BarhopperV3_recognizeBufferNative+84) (BuildId: cf64ac3d5cfd71b04d3bc4112d678e48)
2023-11-21 11:34:14.531 24845-24845 DEBUG                   pid-24845                            A        #14 pc 00000000001e890c  [anon:dalvik-classes6.dex extracted in memory from /data/app/~~Pua-MPb3_YSekKggq0wYvw==/com.scan-GEIEq0XRBLMCfIwCAOPiMw==/base.apk!classes6.dex]
2023-11-21 11:34:14.531 24845-24845 DEBUG                   pid-24845                            A        #20 pc 0000000000295758  [anon:dalvik-classes6.dex extracted in memory from /data/app/~~Pua-MPb3_YSekKggq0wYvw==/com.scan-GEIEq0XRBLMCfIwCAOPiMw==/base.apk!classes6.dex]
2023-11-21 11:34:14.531 24845-24845 DEBUG                   pid-24845                            A        #26 pc 000000000029585a  [anon:dalvik-classes6.dex extracted in memory from /data/app/~~Pua-MPb3_YSekKggq0wYvw==/com.scan-GEIEq0XRBLMCfIwCAOPiMw==/base.apk!classes6.dex]
2023-11-21 11:34:14.531 24845-24845 DEBUG                   pid-24845                            A        #32 pc 00000000001ac93c  [anon:dalvik-classes6.dex extracted in memory from /data/app/~~Pua-MPb3_YSekKggq0wYvw==/com.scan-GEIEq0XRBLMCfIwCAOPiMw==/base.apk!classes6.dex]
2023-11-21 11:34:14.531 24845-24845 DEBUG                   pid-24845                            A        #38 pc 00000000001ac12a  [anon:dalvik-classes6.dex extracted in memory from /data/app/~~Pua-MPb3_YSekKggq0wYvw==/com.scan-GEIEq0XRBLMCfIwCAOPiMw==/base.apk!classes6.dex]
2023-11-21 11:34:14.531 24845-24845 DEBUG                   pid-24845                            A        #47 pc 0000000000187c8a  [anon:dalvik-classes6.dex extracted in memory from /data/app/~~Pua-MPb3_YSekKggq0wYvw==/com.scan-GEIEq0XRBLMCfIwCAOPiMw==/base.apk!classes6.dex]
2023-11-21 11:34:14.531 24845-24845 DEBUG                   pid-24845                            A        #53 pc 00000000001a9f2e  [anon:dalvik-classes6.dex extracted in memory from /data/app/~~Pua-MPb3_YSekKggq0wYvw==/com.scan-GEIEq0XRBLMCfIwCAOPiMw==/base.apk!classes6.dex]
2023-11-21 11:34:14.531 24845-24845 DEBUG                   pid-24845                            A        #59 pc 0000000000299036  [anon:dalvik-classes6.dex extracted in memory from /data/app/~~Pua-MPb3_YSekKggq0wYvw==/com.scan-GEIEq0XRBLMCfIwCAOPiMw==/base.apk!classes6.dex]
2023-11-21 11:34:14.531 24845-24845 DEBUG                   pid-24845                            A        #65 pc 00000000002983bc  [anon:dalvik-classes6.dex extracted in memory from /data/app/~~Pua-MPb3_YSekKggq0wYvw==/com.scan-GEIEq0XRBLMCfIwCAOPiMw==/base.apk!classes6.dex]
2023-11-21 11:34:14.531 24845-24845 DEBUG                   pid-24845                            A        #71 pc 0000000000298388  [anon:dalvik-classes6.dex extracted in memory from /data/app/~~Pua-MPb3_YSekKggq0wYvw==/com.scan-GEIEq0XRBLMCfIwCAOPiMw==/base.apk!classes6.dex]
2023-11-21 11:34:14.531 24845-24845 DEBUG                   pid-24845                            A        #77 pc 000000000029ba2a  [anon:dalvik-classes6.dex extracted in memory from /data/app/~~Pua-MPb3_YSekKggq0wYvw==/com.scan-GEIEq0XRBLMCfIwCAOPiMw==/base.apk!classes6.dex]
2023-11-21 11:34:14.531 24845-24845 DEBUG                   pid-24845                            A        #83 pc 000000000029bf20  [anon:dalvik-classes6.dex extracted in memory from /data/app/~~Pua-MPb3_YSekKggq0wYvw==/com.scan-GEIEq0XRBLMCfIwCAOPiMw==/base.apk!classes6.dex]
2023-11-21 11:34:14.531 24845-24845 DEBUG                   pid-24845                            A        #89 pc 0000000000290362  [anon:dalvik-classes6.dex extracted in memory from /data/app/~~Pua-MPb3_YSekKggq0wYvw==/com.scan-GEIEq0XRBLMCfIwCAOPiMw==/base.apk!classes6.dex]
2023-11-21 11:34:14.531 24845-24845 DEBUG                   pid-24845                            A        #95 pc 0000000000294f24  [anon:dalvik-classes6.dex extracted in memory from /data/app/~~Pua-MPb3_YSekKggq0wYvw==/com.scan-GEIEq0XRBLMCfIwCAOPiMw==/base.apk!classes6.dex]
2023-11-21 11:34:14.531 24845-24845 DEBUG                   pid-24845                            A        #101 pc 00000000002950f4  [anon:dalvik-classes6.dex extracted in memory from /data/app/~~Pua-MPb3_YSekKggq0wYvw==/com.scan-GEIEq0XRBLMCfIwCAOPiMw==/base.apk!classes6.dex]
2023-11-21 11:34:14.531 24845-24845 DEBUG                   pid-24845                            A        #107 pc 000000000029009a  [anon:dalvik-classes6.dex extracted in memory from /data/app/~~Pua-MPb3_YSekKggq0wYvw==/com.scan-GEIEq0XRBLMCfIwCAOPiMw==/base.apk!classes6.dex]
2023-11-21 11:34:14.531 24845-24845 DEBUG                   pid-24845                            A        #110 pc 000000000029003c  [anon:dalvik-classes6.dex extracted in memory from /data/app/~~Pua-MPb3_YSekKggq0wYvw==/com.scan-GEIEq0XRBLMCfIwCAOPiMw==/base.apk!classes6.dex]
2023-11-21 11:34:14.531 24845-24845 DEBUG                   pid-24845                            A        #115 pc 0000000000294e0c  [anon:dalvik-classes6.dex extracted in memory from /data/app/~~Pua-MPb3_YSekKggq0wYvw==/com.scan-GEIEq0XRBLMCfIwCAOPiMw==/base.apk!classes6.dex]
2023-11-21 11:34:14.532 24845-24845 DEBUG                   pid-24845                            A        #126 pc 0000000000290068  [anon:dalvik-classes6.dex extracted in memory from /data/app/~~Pua-MPb3_YSekKggq0wYvw==/com.scan-GEIEq0XRBLMCfIwCAOPiMw==/base.apk!classes6.dex]
2023-11-21 11:34:14.532 24845-24845 DEBUG                   pid-24845                            A        #129 pc 0000000000294d90  [anon:dalvik-classes6.dex extracted in memory from /data/app/~~Pua-MPb3_YSekKggq0wYvw==/com.scan-GEIEq0XRBLMCfIwCAOPiMw==/base.apk!classes6.dex]
---------------------------- PROCESS ENDED (18948) for package com.scan ----------------------------
2023-11-21 11:34:14.683  3202-3600  DollieAdapterService    pid-3202                             E  notifyActivityState pkg:com.scan/com.scan.MainActivity state:19 fg:false mUid:10304
---------------------------- PROCESS ENDED (24847) for package com.scan ----------------------------

Camera Device

{"hardwareLevel": "full", "hasFlash": true, "hasTorch": true, "id": "0", "isMultiCam": false, "maxZoom": 8, "minZoom": 1, "name": "BACK (0)", "neutralZoom": 1, "physicalDevices": ["wide-angle-camera"], "position": "back", "sensorOrientation": "landscape-right", "supportsFocus": true, "supportsLowLightBoost": true, "supportsRawCapture": true}

Device

honor 70

VisionCamera Version

v3.6.4

Can you reproduce this issue in the VisionCamera Example app?

Yes, I can reproduce the same issue in the Example app here

Additional information

I am using Expo
I have enabled Frame Processors (react-native-worklets-core)
I have read the Troubleshooting Guide
I agree to follow this project’s Code of Conduct
I searched for similar issues in this repository and found none.

About this issue

Original URL
State: closed
Created 7 months ago
Reactions: 4
Comments: 71 (20 by maintainers)

Most upvoted comments

Version: 3.6.8

It occurred to me as well. I tried to debug this, and it seems to be a race condition.

The issue is because of the function below. When I change runBlocking to launch(Dispatchers.Main) to make it run on the main thread, it works.

com.mrousavy.camera.core.CameraSession#destroyPreviewOutputSync

    private fun destroyPreviewOutputSync() {
        Log.i(TAG, "Destroying Preview Output...")
        runBlocking {
            Log.d("DEBUG_CAMERA", "difference: 1")
            configure { config ->
                config.preview = CameraConfiguration.Output.Disabled.create()
            }
            Log.d("DEBUG_CAMERA", "difference: 4")
        }
    }

import kotlinx.coroutines.Dispatchers

    private fun destroyPreviewOutputSync() {
        Log.i(TAG, "Destroying Preview Output...")
        launch(Dispatchers.Main) {
            Log.d("DEBUG_CAMERA", "difference: 1")
            configure { config ->
                config.preview = CameraConfiguration.Output.Disabled.create()
            }
            Log.d("DEBUG_CAMERA", "difference: 4")
        }
    }

+13

Hector-Chong on Nov 24, 2023

Dispatchers

You should import Dispatchers by yourself.

import kotlinx.coroutines.Dispatchers

Hector-Chong on Nov 24, 2023

I looked up issue 2090 and someone answered that changing react-native-vison-camera to version 3.5.1 works fine. So I tried lowering the version. Fortunately, I scanned the qrcode from afternoon to now, the app will not crash when scanning the qrcode.（(I tried upgrading to v3.6.6 and v3.6.8 yesterday, and also tried downgrading to v3.6.0, but there was always a crash）

sunnystarh on Nov 21, 2023

@sunnystarh I can confirm downgrading to v.3.5.1 resolves this issue for now.

yasirlateef on Nov 21, 2023

can you guys please test if this change solves the issue for you? @yasirlateef @apadev666

remove node_modules
modify vision-camera in package.json

"dependencies": {
  "react-native-vision-camera": "github:rodgomesc/react-native-vision-camera#cad3699"
}

yarn install
yarn android

rodgomesc on Nov 21, 2023

@mrousavy please take a look at this

@apadev666 why?

mrousavy on Nov 21, 2023

Ah - gotcha - @Hector-Chong could you please create a PR instead of just posting random patches/diffs here? Appreciate it, thanks!

I’ve added #2213 with more information there.

Hector-Chong on Nov 25, 2023

@Hector-Chong

Have you observed an ANR with your fix? I am now observing an ANR (Application Not Responding) when Camera Session is closed (after barcode scanning), and this has to do with runBlocking function.

When CameraView is destroyed, it calls cameraSession.close() which has the following code block:

  override fun close() {
    runBlocking {
      mutex.withLock {
        destroy()
        photoOutputSynchronizer.clear()
      }
    }
  }

We use sentry to log errors. Here is some of our sentry log:

only1chi on Dec 5, 2023

Please change this locally and test it.

mrousavy on Nov 24, 2023

@apadev666 this could happen for a number of reasons. Firstly, it could happen if you don’t configure your camera properly. Try removing all the props except for the required ones and try adding them one-by-one to see what breaks.

yasirlateef on Nov 21, 2023