Re: kullervo with bigram

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On Sun, Jan 18, 2015 at 12:53 PM, Christian T. Steigies <cts@xxxxxxxxxx> wrote:
[   10.340000] pc=0x122478, fa=0x8000ef4c

00122460 T __clear_user

Fault Address is logical, i.e. virtual.

[   10.350000] 68060 access error, fslw=810040

# define MMU060_W       (0x00800000)    /* general write, includes rmw */
#define MMU060_TM       (0x00070000)    /* transfer modifier (TM) bits */

'1' means Debug Access for alternate accesses, which is here the case
(moves).

#define MMU060_TWE      (0x00000040)    /* bus error on table search */

[   10.360000] Failed to execute /init (error -14)
[   10.380000] pc=0x9c23e, fa=0x2ce0c8

0009c234 t get_user_arg_ptr

002ce0c8 d argv_init

As the kernel runs in the first memory chunk, which is not BigRAMPlus,
this should work. Or is the page table for that page stored in BigRAMPlus
memory?

[   10.390000] 68060 access error, fslw=1010040

# define MMU060_RW_R    (0x01000000)    /* read */

Same as above, but read.

Gr{oetje,eeting}s,

                        Geert

--
Geert Uytterhoeven -- There's lots of Linux beyond ia32 -- geert@xxxxxxxxxxxxxx

In personal conversations with technical people, I call myself a hacker. But
when I'm talking to journalists I just say "programmer" or something like that.
                                -- Linus Torvalds
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