[hatari-devel] MMU related

[Laurent Sallafranque <laurent.sallafranque@xxxxxxx>]

Hi,

I've tested a few programs that seem to use the MMU with hatari MMU 
enabled for 68030 :

- Rainbow II multimedia : it works well, and returns correctly to the 
gem (it stops (freezes) when exiting if MMU is disabled)

- EXA demo evolution : see my previous mail

- EXA demo entracte : the demo initialise, then I get the 2 following 
lines into the console :
                    MMU disabled
                    MMU enabled

    and the demo returns to the gem.

- And finally Xtasie demo by trio : works well from beginning to end and 
returns correctly to the gem.
  During the demo, I can see the following lines into the console :

Invalid descriptor!
MMU: page fault (logical addr = 01000000)
Exception_mmu 0005c814 0005c80c 01000000
Invalid descriptor!
Invalid descriptor!
MMU: page fault (logical addr = 0109F467)
Exception_mmu 0005c1ec 0005c1ec 0109f467
Invalid descriptor!
Invalid descriptor!
MMU: page fault (logical addr = 010A0000)
Exception_mmu 0005c1ec 0005c1ec 010a0000
Invalid descriptor!
Invalid descriptor!
MMU: page fault (logical addr = 010A2000)
Exception_mmu 0005c1ec 0005c1ec 010a2000
Invalid descriptor!
Invalid descriptor!
MMU: page fault (logical addr = 010A4000)
Exception_mmu 0005c1ec 0005c1ec 010a4000
Invalid descriptor!
Invalid descriptor!
MMU: page fault (logical addr = 010A6000)
Exception_mmu 0005c1ec 0005c1ec 010a6000
Invalid descriptor!
Invalid descriptor!
MMU: page fault (logical addr = 010A8000)
Exception_mmu 0005c1ec 0005c1ec 010a8000
Invalid descriptor!
Invalid descriptor!
MMU: page fault (logical addr = 010AA000)
Exception_mmu 0005c1ec 0005c1ec 010aa000
Invalid descriptor!
Invalid descriptor!
MMU: page fault (logical addr = 010AC000)
Exception_mmu 0005c1ec 0005c1ec 010ac000
Invalid descriptor!
Invalid descriptor!
MMU: page fault (logical addr = 010AE000)
Exception_mmu 0005c1ec 0005c1ec 010ae000
Invalid descriptor!
Invalid descriptor!
MMU: page fault (logical addr = 010B0000)
Exception_mmu 0005c1ec 0005c1ec 010b0000
Invalid descriptor!
Invalid descriptor!
MMU: page fault (logical addr = 010B2000)
Exception_mmu 0005c1ec 0005c1ec 010b2000
Invalid descriptor!
Invalid descriptor!
MMU: page fault (logical addr = 010B4000)
Exception_mmu 0005c1ec 0005c1ec 010b4000
Invalid descriptor!
Invalid descriptor!

[...]

MMU: page fault (logical addr = 0121A000)
Exception_mmu 000616e6 000616e6 0121a000
Invalid descriptor!
Invalid descriptor!
MMU: page fault (logical addr = 0121C000)
Exception_mmu 000616e6 000616e6 0121c000
Invalid descriptor!
Invalid descriptor!
MMU: page fault (logical addr = 0121E000)
Exception_mmu 000616e6 000616e6 0121e000
Invalid descriptor!
Invalid descriptor!
MMU: page fault (logical addr = 01220000)
Exception_mmu 000616e6 000616e6 01220000
Invalid descriptor!
Invalid descriptor!
MMU: page fault (logical addr = 01222000)
Exception_mmu 000616e6 000616e6 01222000
Invalid descriptor!

I've removed a lot of lines with the same error (something seems to 
increase in the error message). Again, I don't know if it's normal or not).

Best regards

Laurent