crash at start

[mihanik78189482]

Environment:

• App Version: 2.2.0 (F-Droid build)
• OS: LineageOS 23 (Android 16, Target SDK 36)
• GApps: MindTheGApps installed
• Installation Source: F-Droid

Description:
The application crashes immediately after launch upon opening the camera preview and starting frame inference via TensorFlow Lite.

Steps to Reproduce:

1. Launch FairScan on Android 16 / LineageOS 23.
2. Grant camera permissions (if prompted).
3. The app opens the camera stream and crashes almost instantly.

Expected Behavior:
The camera stream should remain active, and the TFLite model should process frames without crashing the app process.

Actual Behavior:
A native crash (SIGSEGV) occurs in libtensorflowlite_jni.so during the NativeInterpreterWrapper.run() execution on the DefaultDispatch thread.

Crash Log / Stack Trace:
09-03 12:53:21.619 2011 12355 I CameraService: CameraService::connect call (PID 29089 "org.fairscan.app", camera ID 0) and Camera API version 2
09-03 12:53:21.743 2011 29149 I CameraService: Start camera streaming for org.fairscan.app (PID 29089, UID 10414)
09-03 12:53:22.277 29205 29205 F DEBUG : Cmdline: org.fairscan.app
09-03 12:53:22.277 29205 29205 F DEBUG : pid: 29089, tid: 29117, name: DefaultDispatch >>> org.fairscan.app <<<
09-03 12:53:22.277 29205 29205 F DEBUG : #00 pc 0000000000290b68 /data/app/~~sJKpEpi-KixPwNy-XRJWIQ==/org.fairscan.app-T-DdofPx0VBXfLeNBHRtkA==/base.apk!libtensorflowlite_jni.so
...
09-03 12:53:22.278 29205 29205 F DEBUG : #14 pc 000000000007cf18 /data/app/~~sJKpEpi-KixPwNy-XRJWIQ==/org.fairscan.app-T-DdofPx0VBXfLeNBHRtkA==/base.apk!libtensorflowlite_jni.so (Java_org_tensorflow_lite_NativeInterpreterWrapper_run+88)
09-03 12:53:22.278 29205 29205 F DEBUG : #16 pc 000000000034fbd8 ... (org.tensorflow.lite.NativeInterpreterWrapper.g+616)
09-03 12:53:22.295 2233 29213 W ActivityTaskManager: Force finishing activity org.fairscan.app/.MainActivit

[pynicolas]

Thank you very much for the detailed crash report.

This looks very similar to an issue we encountered with the F-Droid build:
#155 (comment)

The F-Droid build uses a patched version of LiteRT, and we have seen native crashes in the LiteRT inference code on some devices with that build.

Would you be able to test the GitHub release of FairScan 2.2.0 and let me know whether the crash still occurs?
https://github.com/pynicolas/FairScan/releases/tag/v2.2.0

[mihanik78189482]

On GitHub version everything works. Sent from Proton Mail <https://proton.me/mail/home> for Android.

…

-------- Original Message -------- On Thursday, 09/03/26 at 16:11 Pierre-Yves Nicolas ***@***.***> wrote: *pynicolas* left a comment (pynicolas/FairScan#234) <#234 (comment)> Thank you very much for the detailed crash report. This looks very similar to an issue we encountered with the F-Droid build: #155 (comment) <#155 (comment)> The F-Droid build uses a patched version of LiteRT, and we have seen native crashes in the LiteRT inference code on some devices with that build. Would you be able to test the GitHub release of FairScan 2.2.0 and let me know whether the crash still occurs? https://github.com/pynicolas/FairScan/releases/tag/v2.2.0 — Reply to this email directly, view it on GitHub <#234?email_source=notifications&email_token=A64226HQO2IYN3U5KIJEJBT5NFNWZA5CNFSNUABFM5UWIORPF5TWS5BNNB2WEL2JONZXKZKDN5WW2ZLOOQXTKNJSGU2TENZZGAY2M4TFMFZW63VGMF2XI2DPOKSWK5TFNZ2KYZTPN52GK4S7MNWGSY3L#issuecomment-5525527901>, or unsubscribe <https://github.com/notifications/unsubscribe-auth/A64226AGPETMCJPEQM54BL35NFNWZAVCNFSNUABFKJSXA33TNF2G64TZHM4TKNZUG4YDMOJSHNEXG43VMU5TKMZTGQ2TQNRSGQZ2C5QC> . Triage notifications, keep track of coding agent tasks and review pull requests on the go with GitHub Mobile for iOS <https://github.com/notifications/mobile/ios/A64226HD4UBIAAGA52LPARD5NFNWZA5CNFSNUABFM5UWIORPF5TWS5BNNB2WEL2JONZXKZKDN5WW2ZLOOQXTKNJSGU2TENZZGAY2M4TFMFZW63VGMF2XI2DPOKSWK5TFNZ2KUZTPN52GK4S7NFXXG> and Android <https://github.com/notifications/mobile/android/A64226EZKMEATDZVE4CGJUD5NFNWZA5CNFSNUABFM5UWIORPF5TWS5BNNB2WEL2JONZXKZKDN5WW2ZLOOQXTKNJSGU2TENZZGAY2M4TFMFZW63VGMF2XI2DPOKSWK5TFNZ2K4ZTPN52GK4S7MFXGI4TPNFSA>. Download it today! You are receiving this because you authored the thread.Message ID: ***@***.***>

[pynicolas]

Thank you for testing this. This confirms that the crash is specific to the F-Droid build.
I'll follow up with the F-Droid maintainers on the original issue, as the situation regarding LiteRT 1.4.x seems to have changed since then.