System Freezing When Running More Than 3 RGA Threads on Orange Pi 5 (RK3588S)

[thuongton999]

I am developing a GStreamer-based application on the Orange Pi 5 (RK3588) that runs multiple GStreamer pipelines in parallel, each on a different thread. The pipelines are designed to handle video streams from different RTSP sources, utilizing the Rockchip RGA for hardware-accelerated video processing.

When running up to 3 threads, the system functions as expected. However, when I attempt to run more than 3 threads, the system begins to log repeated RGA_BLIT failure messages and eventually freezes, requiring a hard reset. Below is the error message encountered:

RgaBlit(1485) RGA_BLIT fail: Invalid argument
RgaBlit(1486) RGA_BLIT fail: Invalid argument
handl-fd-vir-phy-hnd-format[0, 209, (nil), (nil), 0, 0]
rect[0, 0, 1920, 1080, 1920, 1088, 2560, 0]
f-blend-size-rotation-col-log-mmu[0, 0, 0, 0, 0, 0, 1]
handl-fd-vir-phy-hnd-format[0, 0, 0xfffef00ee9f0, (nil), 0, 0]
rect[0, 0, 640, 480, 640, 480, 512, 0]
f-blend-size-rotation-col-log-mmu[0, 0, 0, 0, 0, 0, 1]

Here is my sample GStreamer pipeline:

gst-launch-1.0 rtspsrc location=rtsp://<URI> ! queue ! rtph264depay ! h264parse ! mppvideodec ! rgaconvert ! videorate ! video/x-raw,format=RGB,width=640,height=480,framerate=15/1 ! fakesink

Expected Behavior: The system should be able to handle multiple threads utilizing the RGA without freezing or logging continuous errors.

Actual Behavior: When more than 3 threads are run, the system logs repeated RGA_BLIT errors and eventually freezes.

Environment:

• Board: Orange Pi 5 (RK3588S)
• OS: Ubuntu Rockchip 22.04

[Czhazha]

Did you manage to solve this issue? I have encountered the same problem.

[thuongton999]

I have temporarily solved it by using atomic operations while multi-threading. However, technically, it only accesses the RGA one at a time