Software FPU emulation

[Jerry Van Baren]

98% certainty it is a memory (UPM) problem.  You are probably randomly
misreading an instruction as 0xFFxxxxxx which is a floating point
instruction.  This causes a FP emulation trap.  If you look at where the
trap occurred (SPR register SRR0) and look at the actual memory location in
question with your debugger, you probably will not find a FP instruction in
memory, which means it was misread.

gvb


At 02:21 PM 2/21/2002 +0530, srinivas pulipati wrote:

>hi all,
>
>i have ported linux-2.4.4 to my custmoboard based on mpc860.
>i got the bash prompt succesfully.
>
>but is is crashing sometimes and giving FPU emulation., sig:8.
>sometimes working perfectly.
>
>is it because of UPM programming problem or something else?
>
>thanks
>srinivas
>
>


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