Hi all, So it's now starting to look like we need to ensure write posting in interrupt handlers for 34xx instead of marking the IO areas as strongly ordered. The first patch in the series reverts marking the IO areas as strongly ordered. The second debug patch also prints out the previous interrupt before the spurious interrupt, which should help identify the interrupt handler that needs a read back of some register. So if you see errors like this with dspbridge: FIXME: spurious irq 95: 0xffffffdf previous irq 26 FIXME: spurious irq 95: 0xffffffdf previous irq 26 FIXME: spurious irq 95: 0xffffffdf previous irq 26 ... You'll know that the interrupt handler for irq 26 needs a read back of some register in the interrupt handler. Most likely you need to read back the interrupt ack register right after writing to it in the handler, see a later patch in this series for dspbridge. If you get errors like this during boot: FIXME: spurious irq 95: 0xffffffdf previous irq 25 FIXME: spurious irq 95: 0xffffffdf previous irq 25 FIXME: spurious irq 95: 0xffffffdf previous irq 37 ... Most likely we need to do a read back when initializing some devices like dispc and gptimer. I don't have patches for these yet.. The other patches fix few interrupt handlers that I'm aware of needing this, like i2c-omap and dspbridge. The dspbridge patch only applies if you have it installed. I'd appreciate if people who have been working on this issue would torture test this series and provide feedback! Cheers, Tony -- To unsubscribe from this list: send the line "unsubscribe linux-omap" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
