Re: [POC][RFC][PATCH 0/2] pstore/mm/x86: Add wildcard memmap to map pstore consistently

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On Tue, Apr 09, 2024 at 05:23:58PM -0400, Steven Rostedt wrote:
> On Tue, 09 Apr 2024 17:02:54 -0400
> Steven Rostedt <rostedt@xxxxxxxxxxx> wrote:
> 
> >   memmap=12M*4096:oops   ramoops.mem_name=oops
> 
> I forgot to mention that this makes it trivial for any machine that doesn't
> clear memory on soft-reboot, to enable console ramoops (to have access to
> the last boot dmesg without needing serial).
> 
> I tested this on a couple of my test boxes and on QEMU, and it works rather
> well.

I've long wanted a "stable for this machine and kernel" memory region
like this for pstore. It would make testing much easier.

-- 
Kees Cook




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