The app crashes when a preview is in progress and the device is unplugged.
This Is Logcat Output
2026-04-24 17:40:05.930 9848-10122 libc com.jiangdg.ausbc A FORTIFY: pthread_mutex_lock called on a destroyed mutex (0xb400007bd1954a34)
2026-04-24 17:40:05.931 9848-10122 libc com.jiangdg.ausbc A Fatal signal 6 (SIGABRT), code -1 (SI_QUEUE) in tid 10122 (camera-17770326), pid 9848 (m.jiangdg.ausbc)
2026-04-24 17:40:05.949 9848-9848 UsbControlBlock com.jiangdg.ausbc I UsbControlBlock#close:
2026-04-24 17:40:05.949 9848-9848 UsbDeviceConnectionJNI com.jiangdg.ausbc D close
2026-04-24 17:40:05.949 9848-9848 MultiCameraClient com.jiangdg.ausbc I disconnect device name/pid/vid:/dev/bus/usb/001/030&8983&13468
2026-04-24 17:40:05.950 9848-9848 USBMonitor com.jiangdg.ausbc V processDettach:
2026-04-24 17:40:05.952 9848-10113 MultiCameraClient com.jiangdg.ausbc I detach device name/pid/vid:/dev/bus/usb/001/030&8983&13468
2026-04-24 17:40:05.952 9848-10123 libUVCCamera com.jiangdg.ausbc D [10123*UVCPreviewJni.cpp:196:onFinished]:onPreviewFinished
---------------------------- PROCESS STARTED (10147) for package com.jiangdg.ausbc ----------------------------
2026-04-24 17:40:06.237 10136-10136 DEBUG crash_dump64 A Cmdline: com.jiangdg.ausbc
2026-04-24 17:40:06.237 10136-10136 DEBUG crash_dump64 A pid: 9848, tid: 10122, name: camera-17770326 >>> com.jiangdg.ausbc <<<
2026-04-24 17:40:06.237 10136-10136 DEBUG crash_dump64 A #4 pc 00000000001def8c /data/app/~~TYMVY0qqFXfyGgaoVLTcMA==/com.jiangdg.ausbc-J_lX-Zfz9bc2vtQV7z5HiQ==/base.apk!libnative.so (offset 0xf14000) (BuildId: 2f19f292955d20ce5864c359636fcb6a1547940b)
2026-04-24 17:40:06.237 10136-10136 DEBUG crash_dump64 A #5 pc 00000000001dee98 /data/app/~~TYMVY0qqFXfyGgaoVLTcMA==/com.jiangdg.ausbc-J_lX-Zfz9bc2vtQV7z5HiQ==/base.apk!libnative.so (offset 0xf14000) (BuildId: 2f19f292955d20ce5864c359636fcb6a1547940b)
2026-04-24 17:40:06.237 10136-10136 DEBUG crash_dump64 A #6 pc 00000000001dc008 /data/app/~~TYMVY0qqFXfyGgaoVLTcMA==/com.jiangdg.ausbc-J_lX-Zfz9bc2vtQV7z5HiQ==/base.apk!libnative.so (offset 0xf14000) (BuildId: 2f19f292955d20ce5864c359636fcb6a1547940b)
2026-04-24 17:40:06.237 10136-10136 DEBUG crash_dump64 A #7 pc 00000000001d6f90 /data/app/~~TYMVY0qqFXfyGgaoVLTcMA==/com.jiangdg.ausbc-J_lX-Zfz9bc2vtQV7z5HiQ==/base.apk!libnative.so (offset 0xf14000) (BuildId: 2f19f292955d20ce5864c359636fcb6a1547940b)
2026-04-24 17:40:06.237 10136-10136 DEBUG crash_dump64 A #8 pc 00000000001d6758 /data/app/~~TYMVY0qqFXfyGgaoVLTcMA==/com.jiangdg.ausbc-J_lX-Zfz9bc2vtQV7z5HiQ==/base.apk!libnative.so (offset 0xf14000) (libusb_handle_events_timeout_completed+200) (BuildId: 2f19f292955d20ce5864c359636fcb6a1547940b)
2026-04-24 17:40:06.237 10136-10136 DEBUG crash_dump64 A #9 pc 00000000001d7114 /data/app/~~TYMVY0qqFXfyGgaoVLTcMA==/com.jiangdg.ausbc-J_lX-Zfz9bc2vtQV7z5HiQ==/base.apk!libnative.so (offset 0xf14000) (libusb_handle_events_completed+64) (BuildId: 2f19f292955d20ce5864c359636fcb6a1547940b)
2026-04-24 17:40:06.237 10136-10136 DEBUG crash_dump64 A #10 pc 00000000001c9cac /data/app/~~TYMVY0qqFXfyGgaoVLTcMA==/com.jiangdg.ausbc-J_lX-Zfz9bc2vtQV7z5HiQ==/base.apk!libnative.so (offset 0xf14000) (_uvc_handle_events+60) (BuildId: 2f19f292955d20ce5864c359636fcb6a1547940b)
---------------------------- PROCESS ENDED (9848) for package com.jiangdg.ausbc ----------------------------
The app crashes when a preview is in progress and the device is unplugged.
This Is Logcat Output
2026-04-24 17:40:05.930 9848-10122 libc com.jiangdg.ausbc A FORTIFY: pthread_mutex_lock called on a destroyed mutex (0xb400007bd1954a34)
2026-04-24 17:40:05.931 9848-10122 libc com.jiangdg.ausbc A Fatal signal 6 (SIGABRT), code -1 (SI_QUEUE) in tid 10122 (camera-17770326), pid 9848 (m.jiangdg.ausbc)
2026-04-24 17:40:05.949 9848-9848 UsbControlBlock com.jiangdg.ausbc I UsbControlBlock#close:
2026-04-24 17:40:05.949 9848-9848 UsbDeviceConnectionJNI com.jiangdg.ausbc D close
2026-04-24 17:40:05.949 9848-9848 MultiCameraClient com.jiangdg.ausbc I disconnect device name/pid/vid:/dev/bus/usb/001/030&8983&13468
2026-04-24 17:40:05.950 9848-9848 USBMonitor com.jiangdg.ausbc V processDettach:
2026-04-24 17:40:05.952 9848-10113 MultiCameraClient com.jiangdg.ausbc I detach device name/pid/vid:/dev/bus/usb/001/030&8983&13468
2026-04-24 17:40:05.952 9848-10123 libUVCCamera com.jiangdg.ausbc D [10123*UVCPreviewJni.cpp:196:onFinished]:onPreviewFinished
---------------------------- PROCESS STARTED (10147) for package com.jiangdg.ausbc ----------------------------
2026-04-24 17:40:06.237 10136-10136 DEBUG crash_dump64 A Cmdline: com.jiangdg.ausbc
2026-04-24 17:40:06.237 10136-10136 DEBUG crash_dump64 A pid: 9848, tid: 10122, name: camera-17770326 >>> com.jiangdg.ausbc <<<
2026-04-24 17:40:06.237 10136-10136 DEBUG crash_dump64 A #4 pc 00000000001def8c /data/app/~~TYMVY0qqFXfyGgaoVLTcMA==/com.jiangdg.ausbc-J_lX-Zfz9bc2vtQV7z5HiQ==/base.apk!libnative.so (offset 0xf14000) (BuildId: 2f19f292955d20ce5864c359636fcb6a1547940b)
2026-04-24 17:40:06.237 10136-10136 DEBUG crash_dump64 A #5 pc 00000000001dee98 /data/app/~~TYMVY0qqFXfyGgaoVLTcMA==/com.jiangdg.ausbc-J_lX-Zfz9bc2vtQV7z5HiQ==/base.apk!libnative.so (offset 0xf14000) (BuildId: 2f19f292955d20ce5864c359636fcb6a1547940b)
2026-04-24 17:40:06.237 10136-10136 DEBUG crash_dump64 A #6 pc 00000000001dc008 /data/app/~~TYMVY0qqFXfyGgaoVLTcMA==/com.jiangdg.ausbc-J_lX-Zfz9bc2vtQV7z5HiQ==/base.apk!libnative.so (offset 0xf14000) (BuildId: 2f19f292955d20ce5864c359636fcb6a1547940b)
2026-04-24 17:40:06.237 10136-10136 DEBUG crash_dump64 A #7 pc 00000000001d6f90 /data/app/~~TYMVY0qqFXfyGgaoVLTcMA==/com.jiangdg.ausbc-J_lX-Zfz9bc2vtQV7z5HiQ==/base.apk!libnative.so (offset 0xf14000) (BuildId: 2f19f292955d20ce5864c359636fcb6a1547940b)
2026-04-24 17:40:06.237 10136-10136 DEBUG crash_dump64 A #8 pc 00000000001d6758 /data/app/~~TYMVY0qqFXfyGgaoVLTcMA==/com.jiangdg.ausbc-J_lX-Zfz9bc2vtQV7z5HiQ==/base.apk!libnative.so (offset 0xf14000) (libusb_handle_events_timeout_completed+200) (BuildId: 2f19f292955d20ce5864c359636fcb6a1547940b)
2026-04-24 17:40:06.237 10136-10136 DEBUG crash_dump64 A #9 pc 00000000001d7114 /data/app/~~TYMVY0qqFXfyGgaoVLTcMA==/com.jiangdg.ausbc-J_lX-Zfz9bc2vtQV7z5HiQ==/base.apk!libnative.so (offset 0xf14000) (libusb_handle_events_completed+64) (BuildId: 2f19f292955d20ce5864c359636fcb6a1547940b)
2026-04-24 17:40:06.237 10136-10136 DEBUG crash_dump64 A #10 pc 00000000001c9cac /data/app/~~TYMVY0qqFXfyGgaoVLTcMA==/com.jiangdg.ausbc-J_lX-Zfz9bc2vtQV7z5HiQ==/base.apk!libnative.so (offset 0xf14000) (_uvc_handle_events+60) (BuildId: 2f19f292955d20ce5864c359636fcb6a1547940b)
---------------------------- PROCESS ENDED (9848) for package com.jiangdg.ausbc ----------------------------