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From: Andrew Lunn <andrew@lunn.ch>
To: The list for a Better Approach To Mobile Ad-hoc Networking
	<b.a.t.m.a.n@lists.open-mesh.org>
Subject: Re: [B.A.T.M.A.N.] bat_events: page allocation failure (batman-adv maint)
Date: Sat, 23 Jan 2010 19:10:48 +0100	[thread overview]
Message-ID: <20100123181048.GO24649@lunn.ch> (raw)
In-Reply-To: <20100123174616.GA4795@Sellars>

On Sat, Jan 23, 2010 at 06:46:16PM +0100, Linus L??ssing wrote:
> Hey guys,
> 
> I've been installing a 9 node setup here in our cellar. They are
> all running B.A.T.M.A.N. adv 0.2.1-beta r1545 (so the current
> batman-adv maintance version in OpenWRT).
> 
> The result over night:
> - 1x: bat_events: page allocation failure

This looks like a memory leak somewhere. It could be anywhere, batman
or some other part of the kernel.

Can you build your kernel with the kernel memory leak detector
enabled? It is under the Kernel Hacking options. You probably also
need to build the kernel with symbols, which will help with ksymopps
anyway. Documentation for kmemleak is in Documentation/kmemleak.txt.
I've never used it myself, so i've no idea how good it actually is...

Interestingly, did you notice the warnings:

batman-adv:The newly added mac address (00:24:01:b7:6a:d2) already exists on: eth0.2
batman-adv:It is strongly recommended to keep mac addresses unique to avoid
+problems!

I guess this is because you are using VLANs. Have you seen these
problems without using VLANs? 

	 Andrew

  reply	other threads:[~2010-01-23 18:10 UTC|newest]

Thread overview: 37+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2010-01-23 17:46 [B.A.T.M.A.N.] bat_events: page allocation failure (batman-adv maint) Linus Lüssing
2010-01-23 18:10 ` Andrew Lunn [this message]
2010-01-23 23:30   ` Linus Lüssing
2010-01-24 20:42   ` Linus Lüssing
2010-01-24 21:00     ` Andrew Lunn
2010-01-25  6:46       ` Andrew Lunn
2010-01-25  6:47     ` Andrew Lunn
2010-01-25  8:21       ` Marek Lindner
2010-01-26  1:48       ` Linus Lüssing
2010-01-24  4:24 ` Linus Lüssing
2010-01-26  6:13 ` [B.A.T.M.A.N.] slowpath warning Linus Lüssing
2010-01-26  7:16   ` Marek Lindner
2010-01-27  0:10     ` Linus Lüssing
2010-01-28  0:09       ` Marek Lindner
2010-01-28  6:29         ` Andrew Lunn
2010-01-29  8:25   ` Andrew Lunn
2010-01-29  8:59     ` Marek Lindner
2010-01-30 16:50       ` Andrew Lunn
2010-01-31 19:37         ` Linus Lüssing
2010-01-31 20:56           ` Andrew Lunn
2010-02-11  9:46         ` Andrew Lunn
2010-02-11 10:01           ` Andrew Lunn
2010-02-19 17:19             ` Linus Lüssing
2010-02-20 18:04               ` Andrew Lunn
2010-02-21 13:10                 ` Linus Lüssing
2010-02-28 16:34             ` Simon Wunderlich
2010-03-01  5:59               ` Andrew Lunn
2010-03-01 16:57                 ` Simon Wunderlich
2010-03-02  6:43                   ` Andrew Lunn
2010-03-02 21:13                     ` Simon Wunderlich
2010-03-02 21:26                       ` elektra
2010-03-02 21:44                       ` Linus Lüssing
2010-03-04  0:26                         ` Linus Lüssing
2010-03-04  8:57                           ` Andrew Lunn
2010-03-04  9:19                             ` Marek Lindner
2010-03-04  9:49                               ` Andrew Lunn
2010-03-04 10:00                                 ` Marek Lindner

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