Re: Using both memory banks for 256Mb DRAM in AT91SAM9G45

>> Thanks. I tested with the following boot parameters:
>> mem=128M memmap=exactmap memmap=0x08000000@0x70000000
>> and
>> mem=128M memmap=exactmap memmap=0x08000000@0x20000000
>>
>> and OOM killer was invoked correctly on both cases. I guess the problem
>> lies with AT91bootstrap.
>>     
>
> Don't provide the memmap arguments btw - they do absolutely nothing on
> ARM.
>   

Well I had a feeling that those memmap params aren't taken into account. 
The document explaining the boot process that refers to A TAG structure 
wasn't very clear if memmap works or not. I will try to use different 
banks of memory by only initializing them from u-boot and post the results.
> If mem=128M results in the OOM killer being activated, what are you
> running which is eating up all system RAM?
>   
I'm just doing a simple script in python (s="0" s.zfill(0x7000000)) to 
fill up the memory considering that, if OOM killer is activated then the 
memory is ok. If I get other OOPses
then something is wrong.

Thanks,
Nicu Pavel







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