linux-kernel - Re: Kernel falls apart under light memory pressure (i.e. linking vmlinux)

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Message-ID: <BANLkTim7+DY4wcNERwAk2zVZSohmNYBUbA@mail.gmail.com>
Date:	Sat, 21 May 2011 23:14:11 +0900
From:	KOSAKI Motohiro <kosaki.motohiro@...fujitsu.com>
To:	Andrew Lutomirski <luto@....edu>
Cc:	Minchan Kim <minchan.kim@...il.com>,
	Andrea Arcangeli <aarcange@...hat.com>,
	KAMEZAWA Hiroyuki <kamezawa.hiroyu@...fujitsu.com>,
	fengguang.wu@...el.com, andi@...stfloor.org, linux-mm@...ck.org,
	linux-kernel@...r.kernel.org, mgorman@...e.de, hannes@...xchg.org,
	riel@...hat.com
Subject: Re: Kernel falls apart under light memory pressure (i.e. linking vmlinux)

> I did some tracing and the oops happens from the second call to
> shrink_page_list after should_reclaim_stall returns true and it hits
> the same pages in the same order that the earlier call just finished
> calling SetPageActive on.

Can you please share your tracing patch and raw tracing result log?

Thanks.

> I have *not* confirmed that the two calls
> happened from the same call to shrink_inactive_list, but something's
> certainly wrong in there.
>
> This is very easy to reproduce on my laptop.
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