Re: 8xx MMU Table Walk Base (was Re: kernel crashes at InstructionTLBMiss )

"Dan A. Dickey" wrote:
Clip, clip, clip....

quoted

discussion groups).

Murray,
as far as I know - you are maybe the only one running 2.3.x on
a powerpc.  Most of the kernels that one can find lying about
are 2.2.x (13/14? Can't remember at the moment).

I, as well as others, definitely want to see 2.3.x or 2.4.0 running
on an embedded powerpc.

Hey, it does. I have 2.3.99-pre7 hacked and running on a MPC8260.
Actually,
a pretty clean port with the exception of handling the SCC as the
console.

...

quoted

Again, apologies for not providing enough information in my message - I made
assumptions I shouldn't have. Obviously, on my first post I should have been
completely anal, because no-one knows me from a bar of soap. I can then start
to be less exacting after I have been around for a while.

Everyone enjoys sarcasm... :)  (Don't they?)

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Where did you get the sources? What
patches did you apply?  What are your hardware details?  What
modifications did you make?

See above.

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As for 2.4.xx, the 8xx still doesn't work correctly.  However, I
discovered it failed to work after the 403 additions, so I am now
learning about the 403 in an effort to make everything live happily
together again.

It was my feeling that the problems were to do with the new memory allocation
stuff introduced a couple of months ago.

quoted

Note, this has nothing to do with M_TWB......

I know. Now that we have gotten past treating me like a dill, please can you
re-read my original message and see if I am making any sense at all? I would
very much appreciate some insights and even constructive criticism. Cheers!
                                                                Murray...

PS: I haven't contributed the Cogent platform changes yet, because I wasn't
happy that I had done everything properly. This was really my first foray
into taking part in the Linux/PPC embedded development community - I can't
say it has been particularly successful (despite my good feelings about
contributing a small fix a couple of days ago). I will try not to be too
discouraged.

That's the spirit!

I get more done asking stupid questions than I do pondering the
elusive answer. Elephant hide and a resonable reputation of getting
things
done helps. Hang tough and have fun.......

Cheers --
tarr

        -Dan    (A different one).

--
Steven Tarr
Lucent Technologies - Bell Labs
303-538-4056
tarr@lucent.com

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