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Errors about IPU

Question asked by liang yu on Aug 15, 2017
Latest reply on Aug 15, 2017 by igorpadykov

Recently, I use IPU to convert color space yuv422 to yuv420.

When I run "gst-launch mfw_v4lsrc device=/dev/video0 ! mfw_v4lsink" script and then run my application, the ipu runs fine.But if I directly run my application, the IPU alert "imx-ipuv3 imx-ipuv3.0: IPU Warning - IPU_INT_STAT_10 = 0x04000000  imx-ipuv3 imx-ipuv3.0: ERR:[0x92526400]-no:0x10 "wait_for_comp_timeout" ret:0,line:2891". 


What‘s wrong?


I add some debug information in kernel files "drivers/mxc/ipu3/ipu_device.c", and blocked in "wait_event_interruptible(thread_waitq, find_task(&tsk, curr_thread_id));"