linux-kernel - Re: kernel BUG at mm/vmscan.c:1114

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Message-ID: <20110802142459.GF10436@suse.de>
Date:	Tue, 2 Aug 2011 15:24:59 +0100
From:	Mel Gorman <mgorman@...e.de>
To:	Xiaotian Feng <xtfeng@...il.com>
Cc:	linux-mm@...ck.org, linux-kernel <linux-kernel@...r.kernel.org>,
	Andrew Morton <akpm@...ux-foundation.org>
Subject: Re: kernel BUG at mm/vmscan.c:1114

On Tue, Aug 02, 2011 at 03:09:57PM +0800, Xiaotian Feng wrote:
> Hi,
>    I'm hitting the kernel BUG at mm/vmscan.c:1114 twice, each time I
> was trying to build my kernel. The photo of crash screen and my config
> is attached. Thanks.
> Regards
> Xiaotian

I am obviously blind because in 3.0, I cannot see what BUG is at
mm/vmscan.c:1114 :(. I see

1109:			/*
1110:			 * If we don't have enough swap space, reclaiming of
1111:			 * anon page which don't already have a swap slot is
1112:			 * pointless.
1113:			 */
1114:			if (nr_swap_pages <= 0 && PageAnon(cursor_page) &&
1115:			    !PageSwapCache(cursor_page))
1116:				break;
1117:
1118:			if (__isolate_lru_page(cursor_page, mode, file) == 0) {
1119:				list_move(&cursor_page->lru, dst);
1120:				mem_cgroup_del_lru(cursor_page);

Is this 3.0 vanilla or are there some other patches applied?

-- 
Mel Gorman
SUSE Labs
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