netdev - Re: [PATCH] ipv4: fix possible seqlock deadlock

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Message-ID: <20131114214402.GA23872@redhat.com>
Date:	Thu, 14 Nov 2013 16:44:02 -0500
From:	Dave Jones <davej@...hat.com>
To:	Eric Dumazet <eric.dumazet@...il.com>
Cc:	David Miller <davem@...emloft.net>, netdev@...r.kernel.org
Subject: Re: [PATCH] ipv4: fix possible seqlock deadlock

On Thu, Nov 14, 2013 at 01:37:54PM -0800, Eric Dumazet wrote:
 > From: Eric Dumazet <edumazet@...gle.com>
 > 
 > ip4_datagram_connect() being called from process context,
 > it should use IP_INC_STATS() instead of IP_INC_STATS_BH()
 > otherwise we can deadlock on 32bit arches, or get corruptions of
 > SNMP counters.
 > 
 > Fixes: 584bdf8cbdf6 ("[IPV4]: Fix "ipOutNoRoutes" counter error for TCP and UDP")

whoa, 2007. Any idea why I only just started hitting this ?

	Dave

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