AGX Orin R36.3 cannot change IRQ smp affinity

We have the same question with this topic. (Orin NX R36.2 cannot change IRQ smp affinity). We need to use PCIe to transmit data at nearly 40Gbps. In R35.1, we were able to achieve this by distributing PCIe interrupts across different CPUs. However, in R36.3, all interrupts are concentrated on CPU0, which resulted in the transmission rate not meeting our requirements. Is there any way to solve this problem?

A forum user shared this helpful patch which you may try to add it on your side.

thank you, let me have a try

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