irqbalance: debug shows "IRQ0 was BANNED" if --banirq= is used without any value
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vishal14051992 commented
./irqbalance --banirq= -d -o
IRQ 0 was BANNED. <=----
This machine seems not NUMA capable.
Prevent irq assignment to these isolated CPUs: 00000000
Prevent irq assignment to these adaptive-ticks CPUs: 00000000
Banned CPUs: 00000000
....
....
Adding IRQ 138 to database
Adding IRQ 139 to database
IRQ 0 was BANNED. <=----
Adding IRQ 4 to database
Adding IRQ 8 to database
No impact as such, but I do not observe this issue with irqbalance-1.0.7-12.el7.x86_64.
Nonetheless, manually writing to irq0 affinity is not allowed, but 'IRQ 0 was BANNED'
seem to be misleading.