> On Tue, 16 Jan 2007, Eva Myers wrote:
> 
> > Dear All,
> > Thank you very much for all your help with setting up my new SL4
> > machine.  I have just one more minor problem: the following sequence
> > of messages appears in the system logs every half hour.
> > 
> > Jan 16 11:29:35 shanghai kernel: irq 217: nobody cared! (screaming interrupt?)
> > Jan 16 11:29:35 shanghai kernel: irq 217: Please try booting with acpi=off and report a bug
> > Jan 16 11:29:35 shanghai kernel:  [<c0107532>] __report_bad_irq+0x3a/0x77
> > Jan 16 11:29:35 shanghai kernel:  [<c01077a9>] note_interrupt+0xea/0x115
> > Jan 16 11:29:35 shanghai kernel:  [<c0107a55>] do_IRQ+0x143/0x1ae
> > Jan 16 11:29:35 shanghai kernel:  [<c02d51a4>] common_interrupt+0x18/0x20
> > Jan 16 11:29:35 shanghai kernel:  [<c01040e8>] mwait_idle+0x33/0x42
> > Jan 16 11:29:35 shanghai kernel:  [<c01040a0>] cpu_idle+0x26/0x3b
> > Jan 16 11:29:35 shanghai kernel: handlers:
> > Jan 16 11:29:35 shanghai kernel: [<c0241ae2>] (ide_intr+0x0/0x11e)
> > Jan 16 11:29:35 shanghai kernel: [<c025a6c0>] (usb_hcd_irq+0x0/0x4b)
> > Jan 16 11:29:35 shanghai kernel: Disabling IRQ #217
> > 
> > This machine has an Intel D965SSCK Core 2 Duo 6300 2MB cache chipset,
> > and I'll post the rest of the specs if you think they are relevant.
> > Is the fix just to add acpi=off to the kernel options?
> 
> Yes,  you add it to the grub kernel line.
> 
> What kernel is this?

The standard one that comes with SL4:

shanghai.statslab.cam.ac.uk 16:50% uname -r
2.6.9-42.0.3.ELsmp

Eva.