IOP341 hang up

[Fred Fan]

>
>    Hi All:
>        Our customer reports our system will hang up without any log
> information on IOP341 1.2GHz board. IOP341 800MHz is more stable than it.
> But both of  them will hang. After sytem hang up, the BDI2000 can not halt
> arm core. And NMI interrupt never response any more.
>      It seems xscale core has hang. We have done below test.
>      1) 800MHZ IOP341 , Linux-2.6.29.1   [Result] hang after runing  over
> one day
>      2) 1.2GHZ IOP341 Linux-2.6.29.1      [Result] hang after 30'
>      3) 800MHZ IOP341 , Linux-2.6.31      [Result] Not hang until now(about
> over 9 days.
>      4) 1.2GHZ IOP341 Linux-2.6.31         [Result] about one day.
>
> We have review errata of iop341 (September. 2008 version).
> Just found 2 case will make core hang for special cache operation.
> And found 2 case for cache locked.
>
>     Another question, do IOP341 can use trace buffer to check hange resean.
> Best Regards
> Fred
>
>
>
>
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