Re: [Bad page] trying to free locked page? (Re: [PATCH][RFC] fix kernel BUG at mm/migrate.c:719! in 2.6.26-rc5-mm3)

From: KOSAKI Motohiro
Date: Tue Jun 17 2008 - 11:34:40 EST


> > I got this bug while migrating pages only a few times
> > via memory_migrate of cpuset.
> >
> > Unfortunately, even if this patch is applied,
> > I got bad_page problem after hundreds times of page migration
> > (I'll report it in another mail).
> > But I believe something like this patch is needed anyway.
> >
>
> I got bad_page after hundreds times of page migration.
> It seems that a locked page is being freed.

I can't reproduce this bad page.
I'll try again tomorrow ;)



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