netdev - Re: 4.4-rc7 failure report

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Message-Id: <20151230.125003.301825767708169401.davem@davemloft.net>
Date:	Wed, 30 Dec 2015 12:50:03 -0500 (EST)
From:	David Miller <davem@...emloft.net>
To:	eric.dumazet@...il.com
Cc:	davej@...emonkey.org.uk, daniel@...earbox.net,
	alexei.starovoitov@...il.com, dledford@...hat.com,
	netdev@...r.kernel.org
Subject: Re: 4.4-rc7 failure report

From: Eric Dumazet <eric.dumazet@...il.com>
Date: Wed, 30 Dec 2015 11:55:25 -0500

> On Wed, 2015-12-30 at 10:11 -0500, Dave Jones wrote:
>> On Wed, Dec 30, 2015 at 10:38:56AM +0100, Daniel Borkmann wrote:
>> 
>>  > Given that this drop doesn't strictly need to be caused by filter code,
>>  > it would be nice if you could pin the location down where the packet gets
>>  > dropped exactly. Perhaps dropwatch or perf with '-e skb:kfree_skb -a -g
>>  > dhclient <iface>', etc could help to get a first overview to dig into
>>  > details then.
>> 
>> Wild stab in the dark, but..
>> Could this bug be another symptom fixed by http://article.gmane.org/gmane.linux.network/392885 ?
> 
> dhclient does not use async io

But the bug causes requests to "LOOK" like async I/O, right?
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