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Message-ID: <BANLkTimDoZueDWqB_LBndqPorCnTOZkNYQ@mail.gmail.com> Date: Thu, 28 Apr 2011 08:16:29 +0900 From: Minchan Kim <minchan.kim@...il.com> To: Dave Chinner <david@...morbit.com> Cc: Christian Kujau <lists@...dbynature.de>, LKML <linux-kernel@...r.kernel.org>, xfs@....sgi.com Subject: Re: 2.6.39-rc4+: oom-killer busy killing tasks On Wed, Apr 27, 2011 at 7:28 PM, Dave Chinner <david@...morbit.com> wrote: > On Wed, Apr 27, 2011 at 12:46:51AM -0700, Christian Kujau wrote: >> On Wed, 27 Apr 2011 at 12:26, Dave Chinner wrote: >> > What this shows is that VFS inode cache memory usage increases until >> > about the 550 sample mark before the VM starts to reclaim it with >> > extreme prejudice. At that point, I'd expect the XFS inode cache to >> > then shrink, and it doesn't. I've got no idea why the either the >> >> Do you remember any XFS changes past 2.6.38 that could be related to >> something like this? > > There's plenty of changes that coul dbe the cause - we've changed > the inode reclaim to run in the background out of a workqueue as > well as via the shrinker, so it could even be workqueue starvation > causing the the problem... RCU free starvation is another possibility? https://lkml.org/lkml/2011/4/25/124 -- Kind regards, Minchan Kim -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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