On Sat, 2006-08-12 at 00:26 +0200, Wolfgang Pfeiffer wrote:
> On Sat, Aug 12, 2006 at 12:21:53AM +0200, Wolfgang Pfeiffer wrote:
> >
> > Sorry: In my first message I made a mistake in the subject line: It's
> > corrected in this one ...
> >
>
> Still BS: I can only talk for the 5,8 one, *not* fo
> We have a bit per page that says if the page is icache dirty or not.
> On machines with no-execute support, we already avoid flushing the
> page until some process first tries to execute from it. If we
> extended that to this scheme, when we made a segment executable, we
> would have to find an
I never understood why PTE entries waste 4 bits (WIMG)
for effectively very few valid combinations.
The only invalid combinations are WI=11 -- if you know of
a way to fit 12 combinations in fewer than 4 bits, let us
know :-)
Not all of those 12 are very useful, of course.
Segher
--
To UNSUB
On 8/16/06, Paul Mackerras <[EMAIL PROTECTED]> wrote:
Gabriel Paubert writes:
> BTW, there is one way to make pages non executable: mark
> them as guarded, but it will have a significant cost in
> terms of performance.
Indeed. I guess we could do that as a config option for machines that
rea
On Tue, Aug 15, 2006 at 08:31:39PM -0700, Adam D wrote:
> > Can you file a bug report, including a diff of your .config and the debian
> > stock one, as well as the version used ?
> >
> > Friendly,
> >
> > Sven Luther
> >
> >
>
> I am sorry for taking a bit long to list what I am been doing.
Gabriel Paubert writes:
> I agree, but I don't know why you believe it would cause
> a machine check (0x200): from my docs, it is an ISI (0x400).
I don't believe it would cause a machine check either, but that is
what Matt Sealey was saying. I don't know where he got that idea.
> BTW, there i
On Tue, Aug 15, 2006 at 01:59:05PM +1000, Paul Mackerras wrote:
> Matt Sealey writes:
>
> > Book I compatible PowerPC's have had a "no-executable" bit in
> > the page protection flags since the dark ages.. see page 7-38
> > and 7-39 of the 'Programming Environments Manual for 32-Bit
> > Microproce
On Mon, 2006-08-14 at 20:59 +0800, William wrote:
> Hi,
>
> Tried various ways to make `caps_lock' key behave as `control' on my
> ibook G4, but never succeed. I've made `caps_lock' report as Control_L
> in xev, but seems it still has no effect.
You have to recompile your kernel :/
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