Re: [PATCH] Make interrupt handler works for all cases

["Franck Bui-Huu" <vagabon.xyz@gmail.com>]

2006/5/2, Thiemo Seufer <ths@networkno.de>:
> Franck Bui-Huu wrote:
> > 2006/5/2, Thiemo Seufer <ths@networkno.de>:
> > >Franck Bui-Huu wrote:
> > >> 2006/5/2, Ralf Baechle <ralf@linux-mips.org>:
> > >> >On Tue, May 02, 2006 at 09:55:51AM +0200, Franck Bui-Huu wrote:
> > >> >
> > >> >> specially when the kernel is mapped.
> > >> >
> > >> >At which time you're on very fragile ice because TLB instructions should
> > >> >better be executed from an unmapped address ...
> > >> >
> > >>
> > >> well TLB entry used by the kernel is wired, so it should work fined,
> > >> shouldn't it ?
> > >
> > >The architecture spec doesn't guarantee it will.
> >
> > having a quick look at the TLB handling code, it seems that the code
> > assumes it will...
>
> I don't know which code you are looking at, but the kernel's TLB
> handling doesn't run in mapped space. (The ip27 is an exception,
> I assume the R1x000 allows for mapped TLB handling.)
I have assumed the same for r4k cpu and it seems to work fine...
Anyways, Ralf can you apply this patch ?

Thanks
--
              Franck