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Message-ID: <20191120202822.GF20235@breakpoint.cc>
Date: Wed, 20 Nov 2019 21:28:22 +0100
From: Florian Westphal <fw@...len.de>
To: Florian Westphal <fw@...len.de>
Cc: Byron Stanoszek <gandalf@...ds.org>,
"David S. Miller" <davem@...emloft.net>,
linux-kernel@...r.kernel.org, netdev@...r.kernel.org
Subject: Re: Kernel 5.4 regression - memory leak in network layer
Florian Westphal <fw@...len.de> wrote:
> Byron Stanoszek <gandalf@...ds.org> wrote:
> > unreferenced object 0xffff88821a48a180 (size 64):
> > comm "softirq", pid 0, jiffies 4294709480 (age 192.558s)
> > hex dump (first 32 bytes):
> > 01 00 00 00 01 06 ff ff 00 00 00 00 00 00 00 00 ................
> > 00 20 72 3d 82 88 ff ff 00 00 00 00 00 00 00 00 . r=............
> > backtrace:
> > [<00000000edf73c5e>] skb_ext_add+0xc0/0xf0
> > [<00000000ca960770>] br_nf_pre_routing+0x171/0x489
> > [<0000000063a55d83>] br_handle_frame+0x171/0x300
>
> Brnf related, I will have a look.
Not reproducible.
$ ipables-save -c
[66041:2794275493] -A INPUT -i br0 -m physdev --physdev-in eth0
... so br-netfilter is active (else physdev would not work). No leaks
after multiple netperf runs.
I'm on
c74386d50fbaf4a54fd3fe560f1abc709c0cff4b ("afs: Fix missing timeout reset").
Simple bridge with two ethernet interfaces (no vlans or netns for instance).
Does your setup use any other settings (ethtool, sysctl, qdiscs, tunnels
and the like)?
Thanks.
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