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Date: Mon, 5 May 2014 07:08:12 -0400
From: Jeff Layton <jlayton@...chiereds.net>
To: David Rientjes <rientjes@...gle.com>
Cc: Marc Dietrich <marvin24@....de>, linux-kernel@...r.kernel.org,
linux-nfs@...r.kernel.org,
Trond Myklebust <trond.myklebust@...marydata.com>,
Mel Gorman <mgorman@...e.de>
Subject: Re: nfs oom on 3.15
On Mon, 5 May 2014 02:42:35 -0700 (PDT)
David Rientjes <rientjes@...gle.com> wrote:
> On Mon, 5 May 2014, Marc Dietrich wrote:
>
> > Hi,
> >
> > this is spaming my log quite a bit.
> >
> > Any idea?
> >
>
> I think rpc_malloc() really wants to be __GFP_NOWARN so that the warnings
> are suppressed, doing order-1 allocations with GFP_NOWAIT is never
> guaranteed to succeed and will have difficulty if memory is fragmented.
Yes. We made a similar fix to xprt_alloc_slot a while back. The RPC
engine has a mechanism to handle retrying these allocations, so this
warning isn't particularly helpful.
--
Jeff Layton <jlayton@...chiereds.net>
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