On Fri, 2009-05-29 at 17:07 -0300, Alemao wrote: > Im facing some problems with serial, linux-2.6.23, getting flooded > with this message in logs: > > --- > serial8250: too much work for irq16 > --- > > Something I notice, in my .dts I have the following lines: > > serial0: ser...@4500, interrupts = <9 0x8> > serial1: ser...@4600, interrupts = <10 0x8> > spi: s...@7000, interrupts = <16 0x8> > > > But when kernel starts: > > --- > Serial: 8250/16550 driver, 4 ports, IRQ sharing enabled > serial8250.0: ttyS0 at MMIO 0xe0004500 (irq = 16) is a 16550A > --- > > Why IRQ 16? Shouldn't it be IRQ 9?
No. Interrupt numbers are remapped on powerpc. If you were running a mainline kernel you'd see a message something like: irq: irq 9 on host ?? mapped to virtual irq 16 cheers
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