Re: [Bug 7505] Linux-2.6.18 fails to boot on AMD64 machine

[Arjan van de Ven]

On Wed, 2006-12-20 at 02:37 -0800, Andrew Morton wrote:
> On Wed, 20 Dec 2006 04:59:19 -0500
> Chuck Ebbert <76306.1226@xxxxxxxxxxxxxx> wrote:
> 
> > > On 12/19/06, Chuck Ebbert <76306.1226@xxxxxxxxxxxxxx> wrote:
> > > > So an external interrupt occurred, the system tried to use interrupt
> > > > descriptor #39 decimal (irq 7), but the descriptor was invalid.
> > > 
> > > but the irq is disabled at that time.
> > > 
> > > can you use attached diff to verify if the irq is enable somehow?
> > 
> > But it seems interrupts are on--look at the flags:
> > 
> >         RSP: 0018:ffffffff803cdf68  EFLAGS: 00010246
> > 
> 
> down_write()->__down_write() -> __down_write_nested()->spin_unlock_irq()->dead

since down_write() sleeps..... what?


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