On Wed, Apr 16, 2014 at 03:14:54PM -0400, Tejun Heo wrote: > Hello, > > On Wed, Apr 16, 2014 at 08:51:05PM +0200, Alexander Gordeev wrote: > > The crash occured in ahci_hw_interrupt() which means multiple MSIs > > were enabled. The fact driver does not request IRQ does not mean > > the PCI device does not send an MSI interrupt (and it does as we're > > observing the crash). So my question if the dummy port interrupt > > does not end up in handle_bad_irq() or some? > > My memory is kinda fuzzy now but several stray interrupts don't > trigger anything. Mine too :) Just thought may be this way would be better: diff --git a/drivers/ata/ahci.c b/drivers/ata/ahci.c index e45b18e..9f1169a 100644 --- a/drivers/ata/ahci.c +++ b/drivers/ata/ahci.c @@ -1240,6 +1240,8 @@ int ahci_host_activate(struct ata_host *host, int irq, unsigned int n_msis) irq + i, ahci_hw_interrupt, ahci_thread_fn, IRQF_SHARED, pp->irq_desc, host->ports[i]); + else + disable_irq(irq + i); if (rc) goto out_free_irqs; } > Thanks. > > -- > tejun -- Regards, Alexander Gordeev agordeev@xxxxxxxxxx -- 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
