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SubjectRe: [PATCH v2] char drivers: Ram oops/panic logger
2010/3/10 Yuasa Yoichi <>:
> 2010/3/10 Marco Stornelli <>:
>> 2010/3/10 Yuasa Yoichi <>:
>>> Hi,
>>> 2010/3/10 Marco Stornelli <>:
>>>> Ramoops, like mtdoops, can log oops/panic information but in RAM.
>>> What is different from mtdoops + mtd-ram?
>>> Yoichi
>> It can be used in a very easy way with persistent RAM for systems
>> without flash support. For this systems, with this driver, it's no
>> more needed add to the kernel the mtd subsystem with advantage in
>> footprint as I said in the description.
> right.
> But,
>> In addition, you can save
>> flash space and store this information only in RAM. I think it's very
>> useful for embedded systems.
> CONFIG_MTD_RAM uses only RAM.
> I think there's no big difference about this point.

I meant with the "classic" use of mtdoops, therefore with a flash
partition without use MTD_RAM. Using MTD_RAM, it's more or less the
same thing, with the exception of "where" you want deploy the log. For
example: if in your system you have got a nvram you can use it without
problem, you need to specify the address of the nvram to the module.
Very simple. I think it's a small driver but very useful, feedback
from other embedded guys are welcome.


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