On Tue, Apr 23, 2013 at 04:10:22PM +0200, Thomas Gleixner wrote:
> On Mon, 22 Apr 2013, Borislav Petkov wrote:
> > [ 1449.134864] ACPI: Preparing to enter system sleep state S5
> > [ 1449.141054] [Firmware Bug]: ACPI: BIOS _OSI(Linux) query ignored
>
> and right after that the spurious interrupt happens. I asked Boris to
> boot with acpi_osi=Linux on the command line and the issue went
> away, though now it complains right before shutdown about:
>
> [ 123.142377] do_IRQ: 2.179 No irq handler for vector (irq -1)
>
> I wouldn't be surprised if that vector 179 was previously used for
> irq16.
>
> Without acpi_osi=Linux the BIOS manages to put the hardware into a
> state which causes an interrupt to be sent from thin air.
>
> We should have an annual "Brain Is Obviously Superfluous" award.
> This one would be high up on the nomination list.
Yow!!!
Many thanks to you and Borislav for tracking this down!!!
Thanx, Paul
> Yours grumpy
>
> tglx
>
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