Re: 2.6.0-test3-bk6: hang at i8042.c when booting with no PS/2 mouse attached

[Vojtech Pavlik]

On Sun, Aug 24, 2003 at 01:06:05PM +0100, Felipe Alfaro Solana wrote:
> ----- Original Message ----- 
> From: Vojtech Pavlik <vojtech@xxxxxx> 
> Date: Sun, 24 Aug 2003 12:46:15 +0200 
> To: Felipe Alfaro Solana <felipe_alfaro@xxxxxxxxxxxxx> 
> Subject: Re: 2.6.0-test3-bk6: hang at i8042.c when booting with no PS/2 mouse attached 
>  
> > On Mon, Aug 18, 2003 at 09:09:16PM +0200, Felipe Alfaro Solana wrote: 
> >  
> > > If I try to boot my P4 box (i845DE motherboard) with no PS/2 mouse 
> > > plugged into the PS/2 port, the kernel hangs while checking the AUX 
> > > ports in function i8042_check_aux(). The i8042_check_aux() function is 
> > > trying to request IRQ #12, but the call to request_irq() causes the 
> > > hang. The kernel hangs exactly at: 
> > >  
> > >         if (request_irq(values->irq, i8042_interrupt, SA_SHIRQ, 
> > >                                 "i8042", i8042_request_irq_cookie)) 
> >  
> > What happens if you remove the SA_SHIRQ and replace with 0? 
>  
> It does nothing: the kernel still hangs there. It seems to be a problem with the new ACPI code 
> changes cause the kernel boots fine with "pci=noacpi". 

Most likely something with the polarity of interrupts.

-- 
Vojtech Pavlik
SuSE Labs, SuSE CR
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