[PATCH 1/2] kdump: Allow shrinking of kdump region to be overridden

Américo Wang xiyou.wangcong at gmail.com
Tue Mar 15 03:52:38 EDT 2011

On Tue, Mar 15, 2011 at 2:13 AM, Mahesh J Salgaonkar
<mahesh at linux.vnet.ibm.com> wrote:
> During free we do free all of them including RMO region. But since the rtas
> region is always on top of RMO, crashkernel memory overlaps rtas region and
> we endup freeing that even, which is causing the crash.

Okay, but with this patch applied, we will just ignore rtas region, right?
Thus, when I echo 0 to free all the 128M crashkernel memory, the final
result will be 32M left, which means crash_size will still show 32M.
This looks odd.

How about skipping the 32M as a whole? I mean once the region being freed
has overlap with this rtas region, skip the whole rtas region, and let
show 0?


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