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AM3352开发板在长时间用V4L2进行mmap方式拍照时，传输较大分辨率（2592*1944）时经常丢包，无法传输整个图像，并且内核出现trace信息
musb_host_rx 1658: RX13 dma busy, csr 2023
之后板子重启之前无法再select摄像头
请问怎么解决这个问题？
