Re: do_ri failure in cache flushing routines

[Pete Popov <ppopov@mvista.com>]

G H wrote:

> I've not had much response to this question so I would like to 
> rephrase it :
>  
> Can anyone think of any possible scenario where do_ri could occur in 
> blast_icache32() ??
>  
> Is this possibly a cache synchronisation problem ??
>  

Could be a hardware memory glitch. I would use kgdb to put a breakpoint 
there and see what the data in memory looks like when this happens -- 
look for memory corruption, etc.

Pete

> TIA
>  
> >While testing out an amd au1500 based board I have been getting " 
> do_ri " exceptions >that always occur in the cache flushing routines. 
> More often than not in >blast_icache_32().
>  
> >So far this has mainly happened after running the board for days on 
> end while running >multiple telnet sessions to it. It has sometimes ( 
> quite rarely ) happened after a few >hours to a day of multiple telnet 
> session use.
>
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