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Message-ID: <517710CD.3020205@felixbecker.name>
Date: Wed, 24 Apr 2013 00:53:01 +0200
From: Felix Becker <mail@felixbecker.name>
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To: Eric Dumazet <eric.dumazet@gmail.com>
CC: Eric Wong <normalperson@yhbt.net>, linux-kernel@vger.kernel.org,
        netdev@vger.kernel.org
Subject: Re: socket file descriptor a/m/c-timestamps broken in <= 3.8.8?
References: <5175CA2F.2030206@felixbecker.name>  <20130423003015.GA26858@dcvr.yhbt.net> <1366677456.16391.101.camel@edumazet-glaptop>
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Hi,

thank you for that info. Can you tell which mailing list the right one
for this issue is?

Felix

On 04/23/2013 02:37 AM, Eric Dumazet wrote:
> On Tue, 2013-04-23 at 00:30 +0000, Eric Wong wrote:
>> Cc:-ing netdev (no comments of my own)
>> 
>> Felix Becker <mail@felixbecker.name> wrote:
>>> Hi,
>>> 
>>> I tried to figure out how old my TCP connections are and took
>>> a look at /proc/<pid>/fd/<socketfdnum> using 'ls -la' /
>>> 'stat'.
>>> 
> 
> Thanks, but its not a network issue, /proc/pid/fd are part of 
> another subsystem.
> 
> In particular, a/m/c timestamps are volatile (not meaningfull), as 
> you can make them disappear by "echo 3 >/proc/sys/vm/drop_caches"
> 
> Next time you use "ls /proc/pid/fd/..." timestamps are created.
> 
> 
> 
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