On Thu, 21 Oct 2010, Richard Weinberger wrote: > Am Donnerstag 21 Oktober 2010, 21:45:35 schrieb Thomas Gleixner: > > Why shold it solve it ? irq_enable is set to compat_irq_enable which > > in turn calls chip->enable. > > > > So how's that different ? > > I took a closer look on the issue. > > check_irq_resend() gets called before irq_chip_set_defaults(). > In the first call to check_irq_resend() desc->irq_data.chip->irq_enable is > NULL. UML dies due to a NULL-pointer dereference... > > I don't know why check_irq_resend() is called before irq_chip_set_defaults(). > It's your code. ;-) Well, but it only gets called via enable_irq(). So that means something is calling enable_irq _before_ request/setup_irq(). arch/um/kernel/irq.c:init_IRQ() does that :) Thanks, tglx -- To unsubscribe from this list: send the line "unsubscribe linux-next" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
