Raspberry Pi prefetch aborts

[George Mitchell]

On 10/11/13 15:10, Ian Lepore wrote:
> On Tue, 2013-10-08 at 21:07 -0400, George Mitchell wrote:
>> Am I the only one seeing these?
>>
>>[...]
> Are you the only one seeing these?  Yes, or no, or maybe. [...]
>
> In the future, no need to post a whole backtrace, because it's always
> the same.  (Well, if you ever saw one where the exception_exit frame
> didn't backlink to spinlock_exit, that would be interesting.)  The crash
> info that is most useful for this problem is this register dump block:
>
> Fatal kernel mode prefetch abort at 0x4278f502
>> trapframe: 0xdd2eafa0, spsr=200000f3
>> r0 =00000001, r1 =00000001, r2 =00000001, r3 =c058dbd0
>> r4 =c2400000, r5 =00000004, r6 =c05826a0, r7 =c2400308
>> r8 =c058d8c8, r9 =c25fd300, r10=c29aa9e4, r11=0004240c
>> r12=00000000, ssp=dd2eaff0, slr=c046079c, pc =4278f502
>>
>> [ thread pid 27951 tid 100090 ]
>> Stopped at      0x4278f502:     address 0x4278f502 is invalid
>
> Also, next time it happens it might be good to see the output of these
> commands:
>    show all procs
>    show proc PID
>    show thread TID
>
> where PID and TID are the pid and tid numbers from the end of the
> register dump block.
>
> -- Ian
>

Ian, thanks for your efforts, and I wish you good luck!  I'll definitely
try these commands the next time it happens (though it might not be for
another couple of weekends).                                -- George