netdev - Re: [PATCH] fdtable: Avoid triggering OOMs from alloc

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Message-ID: <1391539464.10160.1.camel@edumazet-glaptop2.roam.corp.google.com>
Date:	Tue, 04 Feb 2014 10:44:24 -0800
From:	Eric Dumazet <eric.dumazet@...il.com>
To:	"Eric W. Biederman" <ebiederm@...ssion.com>
Cc:	Andrew Morton <akpm@...ux-foundation.org>,
	linux-kernel@...r.kernel.org, linux-fsdevel@...r.kernel.org,
	netdev@...r.kernel.org, linux-mm@...ck.org,
	David Rientjes <rientjes@...gle.com>
Subject: Re: [PATCH] fdtable: Avoid triggering OOMs from alloc_fdmem

On Tue, 2014-02-04 at 09:22 -0800, Eric W. Biederman wrote:

> The two code paths below certainly look good canidates for having
> __GFP_NORETRY added to them.  The same issues I ran into with
> alloc_fdmem are likely to show up there as well.

Yes, this is what I thought : a write into TCP socket should be more
frequent than the alloc_fdmem() case ;)

But then, maybe your workload was only using UDP ?


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