From: Holger Eitzenberger <holger@eitzenberger.org>
To: David Miller <davem@davemloft.net>
Cc: pablo@netfilter.org,
netfilter-devel <netfilter-devel@vger.kernel.org>,
netdev@vger.kernel.org
Subject: Re: ctnetlink loop
Date: Wed, 8 Dec 2010 21:31:21 +0100 [thread overview]
Message-ID: <20101208203121.GB23668@mail.eitzenberger.org> (raw)
In-Reply-To: <20101208.095020.245408999.davem@davemloft.net>
Hi,
> Holger, this replay -EAGAIN loop in nfnetlink processing was added by
> Pablo to handle module loading properly, I think. So it might not be
> safe to just unilaterally remove it.
thanks for your reply!
Pablo, do we really need the replay loop really? I now have several
boxes with problems due to this replay. 'perf report' always gives me
something like:
18.88% ulogd [kernel]
[k] __nla_put
10.73% ulogd [kernel]
[k] nla_parse
8.72% ulogd [kernel]
[k] __nla_reserve
6.64% ulogd [kernel]
[k] nla_put
5.14% ulogd [kernel]
[k] validate_nla
5.03% ulogd [kernel]
[k] pskb_expand_head
4.92% ulogd [kernel]
[k] ctnetlink_fill_info [nf_conntrack_netlink]
3.07% ulogd [kernel]
[k] skb_put
3.03% ulogd [kernel]
[k] ctnetlink_dump_counters [nf_conntrack
And 'strace' shows me that ulogd is stuck in its 'select' call.
/holger
next prev parent reply other threads:[~2010-12-08 20:31 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2010-12-08 17:50 ctnetlink loop David Miller
2010-12-08 20:31 ` Holger Eitzenberger [this message]
2010-12-09 10:39 ` Pablo Neira Ayuso
[not found] <20101203133903.GG13225@mail.eitzenberger.org>
2010-12-03 13:58 ` Holger Eitzenberger
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