We tried was running “single-input multi decoding” gst pipeline with 4 instances of h264 (no TIDL involved). Along with this, we also tried to increase the CPU load on A53 by running “stress-ng –cpu-method=all -c 3&” . With this the total load on CPU with gst pipeline running was around 88-90%

We observed this pipeline froze at 7:04:05.1 / 99:99:99 , it was around 3 hours of total execution time.

Fix details:
During these high load situations an interrupt could be dropped leading to this hang. The following patch improves interrupt management when using HR timer when HW interrupt isn't present
https://git.ti.com/cgit/ti-linux-kernel/ti-linux-kernel/commit/drivers/media/platform/chips-media/wave5?h=ti-linux-6.12.y-cicd&id=40d7adcd233be37e8db917a9898144d5fe50930f