Re: [PATCH v6 00/10] kdump: reduce vmcore size and capture time

[Baoquan He]

On 09/02/26 at 03:31pm, Wandun Chen wrote:
> From: Wandun Chen <chenwandun@xxxxxxxxxxx>
> 
...snip... 
> ACPI systems already filter reserved memory out of the vmcore through
> their existing path; only DT-based systems currently fail to filter these
> regions, which is what this series addresses. The flag lives in memblock
> itself rather than in a DT-only structure, so the mechanism is generic and
                                                                 ~~~
The patchset itself looks goot to me, while I am concerned if it's
really generic. I raised that in sub-thread talking with Wandun. Imagine
I tried to exclude many driver regions and split memblock regions into
hundreds, cma could yell out: cma_declare_contiguous_multi()?

IMHO, withdrawing the claim can fix the nit concern. If I am wrong,
please help point it out to let me learn more.

Thanks
Baoquan

> both ACPI and DT systems can benefit from it (suggested by Rob, thanks) [1].
> 
> Since the reserved memory regions are filtered out, the vmcore is
> smaller in size and faster to produce. 
> 
...snip...