When add cmdline memmap=1M!2047M, the iomem will be 7ef00001-7fefffff : RAM buffer 7ff00000-7fffffff : Persistent Memory (legacy) 7ff00000-7ff00fff : MSFT0101:00,
so ramoops.mem_address=0x7ff00000.
Lukas Odzioba <lukas.odzioba@xxxxxxxxx> 于 2019年10月21日周一 下午4:39写道：
youling257 <youling257@xxxxxxxxx> wrote:
>
> I don't know my ramoops.mem_address, please help me.
>
> what is ramoops.mem_address?
It is a Linux kernel parameter, see documentation below:
https://www.kernel.org/doc/Documentation/admin-guide/ramoops.rst
It requires memory which can hold data between reboots, so i'm not
sure how it will suit your case.
Thanks,
Lukas
