linux-kernel - Re: kernel 3.2.27 on arm: WARNING: at mm/page_alloc.c:2109 __alloc_pages

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Message-ID: <20120831135757.GA26488@aldebaran.gro-tsen.net>
Date:	Fri, 31 Aug 2012 15:57:57 +0200
From:	David Madore <david+ml@...ore.org>
To:	linux-kernel@...r.kernel.org
Subject: Re: kernel 3.2.27 on arm: WARNING: at mm/page_alloc.c:2109
 __alloc_pages_nodemask+0x1d4/0x68c()

On Fri, Aug 31, 2012 at 12:59:36PM +0200, David Madore wrote:
> On Wed, Aug 29, 2012 at 09:32:20PM +0200, Francois Romieu wrote:
> > David Madore <david+ml@...ore.org> :
> > [...]
> > > I imagine it being somehow related to the fact that it operates a
> > > network bridge (I imagine this because I have another identical
> > > machine with exactly the same kernel and a very similar config but not
> > > running a bridge, and the warning never pops up).
> > 
> > Could it not be a genuine allocation failure ?
> 
> I have no idea.  How can I tell?  In any case, if having 512MB RAM
> isn't enough for the kernel in the router of a small home's network,
> that's a bug somewhere, isn't it?

PS: I'm also getting the following kind of messages from a wlan
interface that's on the bridge:

[  268.976317] ieee80211 phy0: failed to reallocate TX buffer
[  716.880515] ieee80211 phy0: failed to reallocate TX buffer
[ 1160.877677] ieee80211 phy0: failed to reallocate TX buffer

Could they be related?

-- 
     David A. Madore
   ( http://www.madore.org/~david/ )
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