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* Andrew Morton <akpm@osdl.org> wrote: > On Tue, 30 May 2006 14:24:03 -0700 > Roland Dreier <rdreier@cisco.com> wrote: > > > I'm seeing problems with MSI-X interrupts on 2.6.17-rc5-mm1. I'll try > > to debug the MSI patches in -mm further in the next day or so, but for > > now I'll post the symptoms. > > > > When I load the ib_mthca driver with MSI-X interrupts enabled, I get > > the following crash as soon as the first interrupt is generated. > > do_IRQ() did a jump-to-zero. So there's no handler installed. yep. No desc->irq_handler. That should be 'impossible' on x86_64, because the irq_desc[] array is initialized with handle_bad_irq, and from that point on x86_64 only uses set_irq_chip_and_handler(), which at most can set it to another (non-NULL) handle_irq function. Weird. does MSI much with the irq_desc[] separately perhaps, clearing handle_irq in the process perhaps? Ingo - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/ | ||||||||||||
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