设置中断亲和性的时候报错,如下:
root@ok6254:echo 2>/proc/irq/378/smp_affinity_list
-sh:echo:write error:input/output error
但是有的中断号是可以的,例如i2c的16号中断,是可以设置亲和性的
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setenv args_all setenv optargs earlycon=ns16550a,mmio32,0x02800000 isolcpus=1-3