Hello, On 03/12/2010 07:04 AM, Sebastian Andrzej Siewior wrote: > I just migrated from ide_platform to pata_platform on my Swarm/Mips > board. This resulted in "nobody cared" during request_irq(). > The only difference I noticed between ATA and IDE before registering the > interrupt handler is that IDE does not enable the interrupt. > After removing the flag it looks like the controller is working with the > ATA layer. > > If I flip the polarity of the interrupt, I see the "nobody cared" > message shortly after seeing ata_sff_softreset() during boot. So I tried > to perform the software reset with ATA_SRST before requesting the > interrupt hoping that it makes interrupt go away. It did not so. > > Does anyone have an idea what might go wrong here? ata_host_start() calls ata_eh_freeze_port() on each port which is supposed to block the IRQs. For pata_platform, the callback is libata-sff.c::ata_sff_freeze() which does all that's necessary. Can you please play with ata_sff_freeze() and find out why it's not working? Thanks. -- tejun -- To unsubscribe from this list: send the line "unsubscribe linux-ide" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
