Re: i830 lockup

["Harish K Harshan" <harish@amritapuri.amrita.edu>]

Hello Chris,

   But the system works pretty fine when other applications are running.
Oncei load the driver, the system gets messed up. Could it be the
problem with the way I handle DMA and interrupts?? I mean, is it
possible to mess up everything by wrong programming??? This driver
works prefectly on the other IPCs we have, but not on the two-piece
board (Chino-Laxons) systems we have. The DMA channels are both free
before loading the drivers all the time, and one it is loaded, the
/proc/dma file shows the DMA has been hooked properly. Could it still
be the problem with the CPU/Cache/Chipset as you said? If yes, then why
is it throwing up the error only when I load the driver? Or is it
really the problem with the driver programming? Please let me know as
soon as possible.

Thank You in advance,
Harish K Harshan.

On Wed, April 20, 2005 12:27 pm, Chris Wedgwood said:
> On Wed, Apr 20, 2005 at 12:36:45PM +0530, Harish K Harshan wrote:
>
>> CPU 0 : Machine Check Exception : 0000000000000004
>> Bank 0 : a200000084010400
>> Kernel panic : CPU context corrupt
>> In interrupt handler - not syncing
>
> CPU got messed up...  could be a bad CPU/cache/chipset or simply it's
> over heating or has a bad powersupply.
>



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