2.4.0-test3

[Benjamin Herrenschmidt]

>In this case, are we sure that the 601 problems are introduced by this
>change ? Historically, there have been other 601 related problems, like
>code touching HID0 without checking processor version or so.
>
>Another possibility is an ordering problem, it seems that the code
>reloads all the BATs from the BAT array setup by mm/init.c. Is it possible
>that the crash happens this late and do you still need BAT3 after this ?
>
>Maybe the fix will be as simple as writing 0 to the IBATL in LOAD_BAT so
>that we are sure that the BAT is disabled before being reloaded, or call
>again clear_bats before the series of LOAD_BATs.

Well, Andreas re-did the tests with my latest fix (which was to remove
the bogus PAGE_GUARDED in the 601 case) and with the mftb 601 fixes and
his kernel now works.

Ben.


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