instruction access exception

[Joel Sherrill]

Ingolf Steinbach wrote:
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> Hi,
>
> hwulf at et-inf.fho-emden.de schrieb:
>   
>> Now, when I start the program with #define DEBUG, the program stops at  
>> an irregular instruction and the following lines are printed to the  
>> console:
>>
>> Unexpected trap <0x01> at address 0xd0142300c
>> instruction access exception
>>     
>
>   
The SPARC BSPs all end with a trap.  Double check that this isn't a normal
exit on an error detection path.  The key is whether or not that is a 
valid address
for code in your program.
> Just a wild guess: Could this be caused by the bug discussed
> recently which leads to stack overflows when interrupts
> occur too frequently?
>
> If the program uses printf() (or any other output to stdout)
> extensively, the UART will probably generate a high interrupt
> load and might trigger a stack overflow.
>
>   
This disclaimer is at odds with sending a message to a public list.
It was never intended to be private or confidential and was also
immediately archived.
> Cheers
> Ingolf
> - --
>
> Ingolf Steinbach
> Software Engineer
>
> Jena-Optronik GmbH
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