Messages in this thread |  | | Subject | Re: spurious interrupt with ac kernel but not with vanilla 2.4.9 | Date | Fri, 21 Sep 2001 18:03:56 +0100 (BST) | From | Alan Cox <> |
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> I noticed that on the abit kt7A MBs that i have, with via KT133A chipset, > after i installed the kernel 2.4.9-ac10 (ac11 and 12 as well), > at boot i get this message, > > Sep 21 11:52:11 DarkStar kernel: ice 00:0b.0 > Sep 21 11:52:11 DarkStar kernel: spurious 8259A interrupt: IRQ7. > immediatelly before scsi adaptec detection and inizzializzation.
Thats indicating an IRQ appeared and vanished. IRQ 7 is the IRQ that happens to occur for this.
> I was thinking to an HW problem, but with vanilla 2.4.9 kernel I do not > get this message, and the code in arch/i386/kernel/i8259.c that should > detect this spurious interrup is just the same on those two kernels. > Changes are related to X86_IO_APIC, and I think this is the reason why > this spurious interrupt is detected, but I would like to know if i should > think I have some HW problem going on that stardard kernels do not detect.
The APIC only applies to multiprocessor boxes unless you are building with uniprocessor apic support. Build a non SMP kernel without apic support and let me know what that does - 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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