Вот что рассказал автор:
>>> Tell me please, where are stored ramoopses, if I turn off the power? :)
>>
>> When you load the module (or with kernel command line) you have to say
>> to the kernel the address to remap, i.e. where you want to store the
>> oops.
>
> It's work if only i make a "soft-reboot", without regeneration of RAM ?
>
The physical address can be normal RAM, NVRAM, and so on. Sure, if you
use normal RAM, the bootloader/bios shouldn't write the memory area
selected to store the oops at the next reboot. In the embedded world
it's a common feature, see CONFIG_PRAM of u-boot for example.
Regards, Marco
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