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SubjectRe: irq 21: nobody cared 2.6.24-rc1
Bongani Hlope wrote:
> On Thursday 01 November 2007 22:32:38 Andrew Morton wrote:
>> On Thu, 25 Oct 2007 10:45:36 +0200
>> Bongani Hlope <> wrote:
>>> Booting with irqpoll works
>>> ls /proc/irq/21/ (with irqpoll)
>>> ehci_hcd:usb1/ smp_affinity uhci_hcd:usb2/ uhci_hcd:usb3/
>>> uhci_hcd:usb4/
>>> Disabling IRQ #21
>> Was any earlier kernel version OK? 2.6.23?
> Yes the 2.6.23 kernel works fine. This seems to happen when I boot the
> 2.6.24-rc1 kernel with an iPod attached (hope this helps), but the 2.6.23
> kernel doesn't experience this problem.

Something in 2.6.24-rc* seems to be a lot more fussy about this kind
of situation than in 2.6.23. I have a driver (sata_qstor) that manages
a piece of hardware that unfortunately generates spurious interrupts

With 2.6.23, it was only rarely bad enough to cause the "Disabling IRQ #nn"
event to occur. But in 2.6.24-rc*, it happens almost immediately now
(so, yes, I've gone and put a workaround into the driver for it).

Something's different.
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