On Tue, 18 Aug 2009 18:35:32 +0800
Amerigo Wang <amwang@xxxxxxxxxx> wrote:
KAMEZAWA Hiroyuki wrote:Hmm...then....memmap is not there.
On Tue, 18 Aug 2009 14:31:23 +0800Just FYI: calling ClearPageReserved() caused an oops: "Unable to handle paging request".
Amerigo Wang <amwang@xxxxxxxxxx> wrote:
Let's see arch/x86/mm/init.c::free_initmem()It's hidden from the system before mem_init() ?Not sure, but probably yes. It is reserved in setup_arch() which is before mm_init() which calls mem_init().
Do you have any advice to free that reserved memory after boot? :)
Maybe it's all you want.
- ClearPageReserved()
- init_page_count()
- free_page()
- totalram_pages++
I am trying to figure out why...
pfn_valid() check will help you. What arch ? x86-64 ?