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dm6467t的vdce不返回



我们自己做的板子,用的是dvsdk_3_10_00_19和2.6.32.17的内核,跑dmai apps中的video_loopback_convert和video_loopback_resize时都会hang在davinci_vdce.c中的vdce_start调用wait_for_completion_interruptible()的地方,请教专家是什么原因造成的?