linux-kernel - Re: [PATCH] net/skbuff: silence warnings under memory pressure

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Message-ID: <20190903132231.GC18939@dhcp22.suse.cz>
Date:   Tue, 3 Sep 2019 15:22:31 +0200
From:   Michal Hocko <mhocko@...nel.org>
To:     Eric Dumazet <eric.dumazet@...il.com>
Cc:     Qian Cai <cai@....pw>, davem@...emloft.net, netdev@...r.kernel.org,
        linux-mm@...ck.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH] net/skbuff: silence warnings under memory pressure

On Fri 30-08-19 18:15:22, Eric Dumazet wrote:
> If there is a risk of flooding the syslog, we should fix this generically
> in mm layer, not adding hundred of __GFP_NOWARN all over the places.

We do already ratelimit in warn_alloc. If it isn't sufficient then we
can think of a different parameters. Or maybe it is the ratelimiting
which doesn't work here. Hard to tell and something to explore.

-- 
Michal Hocko
SUSE Labs