Re: EHCI handoff failed, propably causing problems

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On Wed, 12 Aug 2009, wixor wrote:

> On Wed, Aug 12, 2009 at 18:15, Alan Stern<stern@xxxxxxxxxxxxxxxxxxx> wrote:
> > Have you tried removing the wireless card entirely?  If that solves the
> > problem then there's probably no point in messing around with ehci-hcd.
> It's a latop - I don't know if it is possible to physically remove
> wifi.

Oh.  When you called it a "wireless card", I assumed this meant the 
card could be removed relatively easily.

> And wifi is rather important on laptop.

I didn't mean that you should get rid of the card entirely!  Just 
remove it temporarily for testing.

> And wifi doesn't use
> ehci's irq line.

How do you know?  Maybe the hardware signals an IRQ line that it 
shouldn't touch.

> And in apic mode those wakeups appear regardless of
> whatever I do with wifi. Anyway, I haven't tried hardware "solutions"
> yet.

How about blacklisting the card's driver?  That's not as good as
physically removing the card (sometimes the BIOS leaves interrupts
enabled when it shouldn't) but it's almost as good.

Alan Stern

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