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SubjectRe: Warning on memory offline (possible in migration ?)
On Wed, 16 Apr 2008 23:43:03 -0700
Andrew Morton <akpm@linux-foundation.org> wrote:

> On Thu, 17 Apr 2008 15:38:18 +0900 KAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com> wrote:
>
> > On Thu, 17 Apr 2008 09:19:30 +0900
> > KAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com> wrote:
> > > > I'd expect that you could reproduce this by disabling readahead with
> > > > fadvise(POSIX_FADV_RANDOM) and then issuing the above four reads.
> > > >
> > > Thank you for advice. I'll try.
> > >
> > (Added lkml to CC:)
> >
> > What happens:
> > When I do memory offline on ia64/NUMA box, __set_page_dirty_buffers() printed
> > out WARNINGS because the page under migration is not up-to-date.
>
> The warning is in __set_page_dirty().
>
Sorry, __set_page_dirty() in fs/buffer.c

Thanks,
-Kame



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