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From: Sven Eckelmann <sven@narfation.org>
To: b.a.t.m.a.n@lists.open-mesh.org
Subject: Re: [B.A.T.M.A.N.] limit of if per batman
Date: Tue, 26 Dec 2017 15:19:41 +0100	[thread overview]
Message-ID: <4799954.f95c8XAbim@sven-edge> (raw)
In-Reply-To: <2528254.P9avF0yZu7@bentobox>

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On Mittwoch, 25. Januar 2017 08:15:52 CET Sven Eckelmann wrote:
[...]
> > this made me curious , and i modified your script a bit - turns out
> > after the 127. IF you add to batman-adv you get an Error -
> > all 510 gretap links was succesfully build ...
> > # ifconfig |grep gre| wc -l
> > 515
> > # batctl if|sort|wc -l
> > 127
> > the error is mainly
> > *Error - can't write to file
> > '/sys/class/net/gre128/batman_adv/mesh_iface': Cannot allocate memory
> [...]
[...]
> I would guess that your system mostly fails becauseit  cannot handle the
> allocation of the "large" arrays which store:
[...]

Looks like their could also be a different problem when your test system uses 
signed characters by default. Please try the patch [1] which changes the type 
from char/s16 to unsigned int.

Kind regards,
	Sven

[1] https://patchwork.open-mesh.org/patch/17247/

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  reply	other threads:[~2017-12-26 14:19 UTC|newest]

Thread overview: 8+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2017-01-23 17:26 [B.A.T.M.A.N.] limit of if per batman jens
2017-01-24 13:39 ` Sven Eckelmann
2017-01-25  2:21   ` jens
2017-01-25  3:02     ` Andrew Lunn
     [not found]   ` <ba5c036e-e34b-2b43-4df2-bc1c8883eedd@viisauksena.de>
2017-01-25  7:15     ` Sven Eckelmann
2017-12-26 14:19       ` Sven Eckelmann [this message]
2018-01-23 12:33         ` Sven Eckelmann
2018-02-03  7:41           ` Sven Eckelmann

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