opencv-mobile长时间抓图会导致alloc failed, req-size: 765 pages, ret: -12

• zlzong

  Posts: 1

  Joined: 2025-03-02 8:48

  2025-03-02 9:04

  一、系统信息

  Code: Select all

  Linux luckfox 5.10.160 #2 Thu Nov 28 14:03:14 CST 2024 armv7l GNU/Linux
  

  Code: Select all

  [root@luckfox root]# cat /proc/device-tree/model
  Luckfox Pico Ultra W
  

  摄像头为sc3336
  
  二、现象：
  使用opencv-mobile抓图，一开始可以正常抓取，持续一段时间之后，抓图会报错：
  opencv-mobile打印:

  Code: Select all

     devpath = /dev/video11
     driver = rkisp_v7
     card = rkisp_mainpath
     bus_info = platform:rkisp-vir0
     version = 20500
     capabilities = 84201000
     device_caps = 4201000
     fmt = UYVY 4:2:2  59565955
     fmt = Y/CbCr 4:2:2  3631564e
     fmt = Y/CrCb 4:2:2  3136564e
     fmt = Y/CrCb 4:2:0  3132564e
         size = 32 x 32  ~  2304 x 1296  (+8 +8)
     fmt = Y/CbCr 4:2:0  3231564e
     fmt = Y/CrCb 4:2:0 (N-C)  31324d4e
     fmt = Y/CbCr 4:2:0 (N-C)  32314d4e
  XCORE:K:rk_aiq_uapi_sysctl_preInit_scene: main_scene: normal, sub_scene: day
  IPCSERVER:K:cid[0] Process path:/tmp/UNIX.domain0, sockfd:29
  XCORE:K:cid[0] rk_aiq_uapi_sysctl_init success. iq:/oem/usr/share/iqfiles/sc3336_CMK-OT2119-PC1_30IRC-F16.json
  XCORE:K:cid[0] rk_aiq_uapi_sysctl_prepare success. mode:0 
  /dev/video11 does not support changing fps
  RK_DMA_HEAP_ALLOC_BUFFER failed
  dma_buf_alloc 6220800 failed
  MessageParser process loop exit!
  IPCSERVER:K:cid[0] Deinit success
  XCORE:K:cid[0] rk_aiq_uapi_sysctl_deinit_locked success.
  

  dmesg日志:

  Code: Select all

  [11678.171811] stream_cif_mipi_id0: open video, entity use_countt 2
  [11678.171918] stream_cif_mipi_id1: open video, entity use_countt 1
  [11678.177607] rkisp rkisp-vir0: first params buf queue
  [11678.178488] cma: cma_alloc: rk-dma-heap-cma: alloc failed, req-size: 765 pages, ret: -12
  [11678.178507] vb2_cma_sg_alloc_contiguous: cma_en:1 alloc pages fail
  [11678.182423] stream_cif_mipi_id1: close video, entity use_count 0
  [11678.182468] stream_cif_mipi_id0: close video, entity use_count 1
  [11678.183064] stream_cif_mipi_id0: s_power 0, entity use_count 0
  [11708.162895] stream_cif_mipi_id0: s_power 1, entity use_count 1
  [11708.171802] stream_cif_mipi_id0: open video, entity use_countt 2
  [11708.171909] stream_cif_mipi_id1: open video, entity use_countt 1
  [11708.177917] rkisp rkisp-vir0: first params buf queue
  [11708.178821] cma: cma_alloc: rk-dma-heap-cma: alloc failed, req-size: 765 pages, ret: -12
  [11708.178840] vb2_cma_sg_alloc_contiguous: cma_en:1 alloc pages fail
  [11708.184811] stream_cif_mipi_id1: close video, entity use_count 0
  [11708.184856] stream_cif_mipi_id0: close video, entity use_count 1
  [11708.185764] stream_cif_mipi_id0: s_power 0, entity use_count 0
  [11711.056130] done=1 retry_required=0 sw_retry_required=0 acknowledged=1
  [11738.162848] stream_cif_mipi_id0: s_power 1, entity use_count 1
  [11738.175884] stream_cif_mipi_id0: open video, entity use_countt 2
  [11738.181834] stream_cif_mipi_id1: open video, entity use_countt 1
  [11738.188315] rkisp rkisp-vir0: first params buf queue
  [11738.191568] cma: cma_alloc: rk-dma-heap-cma: alloc failed, req-size: 765 pages, ret: -12
  [11738.191589] vb2_cma_sg_alloc_contiguous: cma_en:1 alloc pages fail
  [11738.199858] stream_cif_mipi_id1: close video, entity use_count 0
  [11738.199908] stream_cif_mipi_id0: close video, entity use_count 1
  [11738.201599] stream_cif_mipi_id0: s_power 0, entity use_count 0
  [11768.162904] stream_cif_mipi_id0: s_power 1, entity use_count 1
  [11768.171843] stream_cif_mipi_id0: open video, entity use_countt 2
  [11768.171953] stream_cif_mipi_id1: open video, entity use_countt 1
  [11768.177453] rkisp rkisp-vir0: first params buf queue
  [11768.178322] cma: cma_alloc: rk-dma-heap-cma: alloc failed, req-size: 765 pages, ret: -12
  [11768.178342] vb2_cma_sg_alloc_contiguous: cma_en:1 alloc pages fail
  [11768.182290] stream_cif_mipi_id1: close video, entity use_count 0
  [11768.182341] stream_cif_mipi_id0: close video, entity use_count 1
  [11768.182943] stream_cif_mipi_id0: s_power 0, entity use_count 0
  [11798.162961] stream_cif_mipi_id0: s_power 1, entity use_count 1
  [11798.174144] stream_cif_mipi_id0: open video, entity use_countt 2
  [11798.174250] stream_cif_mipi_id1: open video, entity use_countt 1
  [11798.181636] rkisp rkisp-vir0: first params buf queue
  [11798.184005] cma: cma_alloc: rk-dma-heap-cma: alloc failed, req-size: 765 pages, ret: -12
  [11798.184025] vb2_cma_sg_alloc_contiguous: cma_en:1 alloc pages fail
  [11798.189193] stream_cif_mipi_id1: close video, entity use_count 0
  [11798.189243] stream_cif_mipi_id0: close video, entity use_count 1
  [11798.189838] stream_cif_mipi_id0: s_power 0, entity use_count 0
  [12011.052515] done=1 retry_required=0 sw_retry_required=0 acknowledged=1
  

  三、代码
  opencv-mobile使用的是https://github.com/LuckfoxTECH/luckfox_pico_rkmpi_example，kernel-5.10.160分支
  
  测试代码(每30s调用一次)：

  Code: Select all

      cv::VideoCapture cap;
      cap.set(cv::CAP_PROP_FRAME_WIDTH, 1920);
      cap.set(cv::CAP_PROP_FRAME_HEIGHT, 1080);
      if (!cap.open(0)) {
          LOG_ERROR("Failed to open camera");
          cap.release();
          return ProcessorStatus::kProcessorFailure;
      }
  
      const int w = cap.get(cv::CAP_PROP_FRAME_WIDTH);
      const int h = cap.get(cv::CAP_PROP_FRAME_HEIGHT);
      LOG_DEBUG("Camera frame size is {} x {}", w, h);
      cv::Mat frame;
      cap >> frame;
  
      if (frame.empty()) {
          LOG_ERROR("Failed to capture");
          cap.release();
          return ProcessorStatus::kProcessorFailure;
      }
  
      auto timeString = getCurrentTimeString();
      MyFontFace fontFace;
      cv::putText(frame, timeString,cv::Point(30, 60), cv::Scalar(127, 0, 127), fontFace, 20);
      cv::putText(frame, "1",cv::Point(30, 1040), cv::Scalar(127, 0, 127), fontFace, 20);
      cap.release();
      if (!cv::imwrite("/userdata/capture/out.jpg", frame)) {
          LOG_ERROR("Failed to save photo");
          return ProcessorStatus::kProcessorFailure;
      }
  

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