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saki4510t / UVCCamera

library and sample to access to UVC web camera on non-rooted Android device
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A/libc: Fatal signal 11 (SIGSEGV), code 2 (SEGV_ACCERR), fault addr 0x7b49f63000 in tid 4497 (CameraThread), pid 4411 (.usbcameratest5) #648

Closed mohan-sk closed 2 years ago

mohan-sk commented 2 years ago

Hi, My app is crashing when I am trying to capture the frame. We have a custom uvc camera and seems the frame is sent by this device. Below is the crash report from logcat.

Build fingerprint: 'google/sargo/sargo:12/SQ1A.220105.002/7961164:user/release-keys' ABI: 'arm64' Timestamp: 2022-03-07 19:00:47.313643823+0530 Process uptime: 0s Cmdline: com.serenegiant.usbcameratest5 pid: 30256, tid: 30315, name: CameraThread >>> com.serenegiant.usbcameratest5 <<< uid: 10201 signal 11 (SIGSEGV), code 2 (SEGV_ACCERR), fault addr 0x7b4a050000 x0 0000007b4a04fe9a x1 0000007e140bc968 x2 0000000000000a38 x3 0000007b4a04ffd0 x4 0000007e140bd3f0 x5 0000007b4a050a98 x6 4050406040104030 x7 4020409000404070 x8 00a0402000404060 x9 0020406000904070 x10 0010408000104020 x11 004040b000104030 x12 00604030003040a0 x13 4030406040104080 x14 000d2133c760d2c0 x15 00000000003eba4d x16 0000007b4c3b9fd0 x17 0000007dfccbcc20 x18 0000007b4bf8e000 x19 0000000000000000 x20 0000000000000000 x21 0000000000000016 x22 0000000000000002 x23 0000007c463d8660 x24 0000007c463ddce8 x25 0000007e140bc7f0 x26 0000000000000bfe x27 0000000000000000 x28 0000007c463d85b0 x29 0000007b4c248950 lr 0000007b4c3b7d38 sp 0000007b4c248910 pc 0000007dfccbcbd0 pst 0000000020000000 backtrace:

00 pc 000000000004bbd0 /apex/com.android.runtime/lib64/bionic/libc.so (__memcpy+288) (BuildId: ba489d4985c0cf173209da67405662f9)

  #01 pc 0000000000015d34  /data/app/~~4cisLC1TaIeUT2nzh06gBA==/com.serenegiant.usbcameratest5-EegW9DBB5T6gDpzUKo0bpA==/base.apk!libuvc.so (BuildId: 8f70cadedce4d9c5789a0255e0b3dfccdbb27c0e)
  #02 pc 0000000000010238  /data/app/~~4cisLC1TaIeUT2nzh06gBA==/com.serenegiant.usbcameratest5-EegW9DBB5T6gDpzUKo0bpA==/base.apk!libusb100.so (usbi_handle_transfer_completion+332) (BuildId: 4966713
  #03 pc 0000000000015390  /data/app/~~4cisLC1TaIeUT2nzh06gBA==/com.serenegiant.usbcameratest5-EegW9DBB5T6gDpzUKo0bpA==/base.apk!libusb100.so (BuildId: 4966713a3ee47bbd660ddbc6afe6de8b72e1f838)
  #04 pc 0000000000010e00  /data/app/~~4cisLC1TaIeUT2nzh06gBA==/com.serenegiant.usbcameratest5-EegW9DBB5T6gDpzUKo0bpA==/base.apk!libusb100.so (BuildId: 4966713a3ee47bbd660ddbc6afe6de8b72e1f838)
  #05 pc 0000000000010850  /data/app/~~4cisLC1TaIeUT2nzh06gBA==/com.serenegiant.usbcameratest5-EegW9DBB5T6gDpzUKo0bpA==/base.apk!libusb100.so (libusb_handle_events_timeout_completed+396) (BuildId: 
  #06 pc 0000000000010f90  /data/app/~~4cisLC1TaIeUT2nzh06gBA==/com.serenegiant.usbcameratest5-EegW9DBB5T6gDpzUKo0bpA==/base.apk!libusb100.so (libusb_handle_events+48) (BuildId: 4966713a3ee47bbd660
  #07 pc 0000000000013a84  /data/app/~~4cisLC1TaIeUT2nzh06gBA==/com.serenegiant.usbcameratest5-EegW9DBB5T6gDpzUKo0bpA==/base.apk!libuvc.so (_uvc_handle_events+132) (BuildId: 8f70cadedce4d9c5789a025
  #08 pc 00000000000b1910  /apex/com.android.runtime/lib64/bionic/libc.so (__pthread_start(void*)+264) (BuildId: ba489d4985c0cf173209da67405662f9)
  #09 pc 00000000000513f0  /apex/com.android.runtime/lib64/bionic/libc.so (__start_thread+64) (BuildId: ba489d4985c0cf173209da67405662f9)

I am running this app on Android 12 , AS bumble-bee, SDK API 32, NDK 23.1.7779620, gradle 7.2.0

Does any one came across this issue and could resolve it? Any help is much appreciated as this is eating my time

mohan-sk commented 2 years ago

I was a bug when we change the resolution to more than 1024x1024 which is set as default value of frame_buffer_size in libuvc_internal.h file. There is a native api nativeFrameBufferSize to set it but not used in the examples.