[linuxsh-dev] What means "unexpected IRQ trap at vector 0d"

[Fabio G. <fg...@ti...>]

Sorry,
but I don't understand what means:
"unexpected IRQ trap at vector 0d"

I suppose it is an interrupt always entering but I don't understand what is 
its source.

Thanks.

Fabio

On Tuesday 02 April 2002 14:27, Stuart Menefy wrote:
> Hi Fabio
>
> You might like to have a look at the 'board porting guide' a colleague
> here wrote. Have a look at:
>   http://www.linuxsh.st.com/getting_started/board_porting.php3
>
> As far as I know, you'll be the first person to try it in anger, so any
> comments welcome!
>
> You're right, it sounds like you have a pending interrupt. So the first
> thing I'd do is stick a printk at the start of do_IRQ(), and print the irq
> number (just after the little bit of asm code which retreives it).
>
> Stuart
>
>
> On Fri, 29 Mar 2002 10:55:32 +0100
>
> fg...@ti... wrote:
> > Hi, Stuart,
> > I' porting linux SH on my sh3 7709a based board.
> > I'm able to compile and run for my board sh-boot got from CVS repository,
> > I'm able to compile the kernel 2.4.18 and I can boot it using gdb.
> >
> > Making a debug using printk("...."); while(1); to understant I see that
> > kernel stops execution at init/main.c -> start_kernel -> sti();
> >
> > I compiled my kernel as my board were a SolutionEngine, but my board
> > isn't a SolutionEngine.
> >
> > Having read the Documentation/sh/ document from the CVS kernel and
> > seeing you are the father of sh_mv model, I write to you for asking:
> > 1) Is it possible when I enable the interrupt mask with sti() an
> > interrupt pending occurs which I have no handler for?
> >
> > 2) There is an optiminezed way to trace this kind of troubles?
> >
> >
> > Thanks a lot.
> >
> > Fabio