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Open Source and information security mailing list archives
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Date: Tue, 23 Apr 2013 08:01:39 -0700 From: "Paul E. McKenney" <paulmck@...ux.vnet.ibm.com> To: Thomas Gleixner <tglx@...utronix.de> Cc: Borislav Petkov <bp@...en8.de>, Takashi Iwai <tiwai@...e.de>, x86-ml <x86@...nel.org>, lkml <linux-kernel@...r.kernel.org>, Len Brown <lenb@...nel.org> Subject: Re: irq 16: nobody cared 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 > -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.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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