Arty A7-100T Boot Linux Panic about irqchip.

[Jerryy959]

the issue metioned on: https://github.com/litex-hub/linux-on-litex-rocket/issues/40#issue-2324887509

i found the arty.dts had a node with interrupts-extended: <&L4 11 >

L1: interrupt-controller@c000000 {
			#interrupt-cells = <1>;
			compatible = "riscv,plic0";
			interrupt-controller;
			interrupts-extended = <&L4 11 &L4 9>;
			reg = <0xc000000 0x4000000>;
			reg-names = "control";
			riscv,max-priority = <7>;
			riscv,ndev = <8>;
		};

and my Linux can't get thr irq 11 's handler. How can i debug this?