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Re: dst cache overflow

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From: Tobias Diedrich <ranma@...>
To: Herbert Xu <herbert@...>, <linux-net@...>, <linux-kernel@...>, <dada1@...>
Subject: Re: dst cache overflow
Date: Sunday, March 16, 2008 - 9:25 pm

Hi all,


just a reminder, the server is now running 2.6.24 and the leak is

still there.  I noticed there is a slab leak debug option and turned

it on, results should be visible in a few days I guess.


Offenders: Slabs TCPv6, size_2048 and size_512 grow over time.


I also noticed that the machine stops responding to pings after some

time, which seems to coincide with a slight increase in leak speed.


Interstingly IPv4 pings give out first, IPv6 pings continue to work a bit

longer, but eventually fail too. (Because sixxs starts sending 'your

tunnel is down!' mails I actually wrote a userspace pingd as a

workaround...)


/proc/net/snmp seems to indicate the kernel thinks it is still

sending ping replies.


HTH,


--

Tobias						PGP: http://9ac7e0bc.uguu.de

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Messages in current thread:
Hello, aaa bbb, (Fri Nov 27, 7:36 pm)
Re: dst cache overflow, Tobias Diedrich, (Sun Dec 16, 4:38 am)
Re: dst cache overflow, Tobias Diedrich, (Sun Mar 16, 9:25 pm)
Re: dst cache overflow, Tobias Diedrich, (Tue Mar 18, 2:59 pm)
IPv6 slab leak (was: Re: dst cache overflow), Tobias Diedrich, (Sun Mar 23, 5:21 am)
Re: IPv6 slab leak (was: Re: dst cache overflow), Tobias Diedrich, (Fri May 16, 3:46 pm)
Re: IPv6 slab leak (was: Re: dst cache overflow), Tobias Diedrich, (Sun May 18, 12:49 pm)