Messages in this thread | | | Date | Wed, 17 Jul 2013 14:06:03 -0400 | From | Naoya Horiguchi <> | Subject | Re: [PATCH] mm/swap.c: clear PageActive before adding pages onto unevictable list (Re: 3.11.0-rc1: kernel BUG at mm/migrate.c:458 in page migration) |
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On Wed, Jul 17, 2013 at 12:35:50PM -0400, Naoya Horiguchi wrote: ... > --- > From: Naoya Horiguchi <n-horiguchi@ah.jp.nec.com> > Date: Wed, 17 Jul 2013 11:49:56 -0400 > Subject: [PATCH] mm/swap.c: clear PageActive before adding pages onto > unevictable list > > As a result of v3.10-3600-g13f7f78 "mm: pagevec: defer deciding which LRU > to add a page to until pagevec drain time," pages on unevictable lists can > have both of PageActive and PageUnevictable set. This is not only confusing, > but also corrupts page migration and shrink_[in]active_list. > > This patch fixes the problem by adding ClearPageActive before adding pages > into unevictable list. It also cleans up VM_BUG_ONs. > > Signed-off-by: Naoya Horiguchi <n-horiguchi@ah.jp.nec.com> > Cc: stable@vger.kernel.org # 3.10
No need to send to stable because the problem occurs after 3.10, sorry.
Naoya Horiguchi
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