Debugging techniques inside kernel

[Denis Kirjanov]

On 7/8/13, manty kuma <mantykuma at gmail.com> wrote:
> I am not completely aware of the debugging techniques and utilizing /proc
> entries that kernel provides to debug the issues.
>
> Could you please point me out to some interesting sources related to
> debugging or it would be very nice if you could list them here at one
> place.
>
> I found out that recently some interesting CONFIGS that enable some
> debugging features.
>
> For ex : *CONFIG_SLUB_DEBUG_ON, *CONFIG_DMA_API_DEBUG
> I am just told to use these configs and check. Not sure how to use them
> effectively. Please share if you are aware of these kind of configs and how
> to use them. To have them at one place it would be useful for debugging
> beginners like me.
>
> Currently i am facing a memory corruption issue. A very Nasty one which has
> different call stacks everytime it crashes. Looking at the patterns and
> Area that is getting corrupted, we are suspecting non-linux components that
> are illegally writing into the comple DDR(ram). So in this case, is there
> some particular help that kernel can provide me?

I've had a similar issue and the reason was a corrupted memory chip.

> Currently i have the complete ram dump. I am analyzing it through
> opensource crash tool.
>
> Cheers,
> Manty!
>


-- 
Regards,
Denis