KAMEZAWA Hiroyuki wrote:
On Tue, 18 Aug 2009 18:35:32 +0800 Amerigo Wang <amwang@xxxxxxxxxx> wrote:KAMEZAWA Hiroyuki wrote:Just FYI: calling ClearPageReserved() caused an oops: "Unable to handle paging request".On Tue, 18 Aug 2009 14:31:23 +0800 Amerigo Wang <amwang@xxxxxxxxxx> wrote:Not sure, but probably yes. It is reserved in setup_arch() which is before mm_init() which calls mem_init().It's hidden from the system before mem_init() ?Do you have any advice to free that reserved memory after boot? :)Let's see arch/x86/mm/init.c::free_initmem() Maybe it's all you want. - ClearPageReserved() - init_page_count() - free_page() - totalram_pages++I am trying to figure out why...Hmm...then....memmap is not there. pfn_valid() check will help you. What arch ? x86-64 ?
Hmm, yes, x86_64, but this code is arch-independent, I mean it should work or not work on all arch, no?
So I am afraid we need to use other API to free it... Thanks. -- To unsubscribe from this list: send the line "unsubscribe linux-ia64" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
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