From: Carlos O'Donell <carlos@systemhalted.org>
To: John David Anglin <dave.anglin@bell.net>
Cc: Rolf Eike Beer <eike-kernel@sf-tec.de>,
linux-parisc <linux-parisc@vger.kernel.org>
Subject: Re: I have 12GB of RAM but I can only use 1GB?
Date: Thu, 20 Sep 2012 00:19:59 -0400 [thread overview]
Message-ID: <505A996F.4040807@systemhalted.org> (raw)
In-Reply-To: <BLU0-SMTP21E4975DA9B1176FC72936979B0@phx.gbl>
On 9/19/2012 7:26 PM, John David Anglin wrote:
> On 19-Sep-12, at 2:06 AM, Rolf Eike Beer wrote:
>
>> IIRC you need CONFIG_DISCONTIGMEM.
>
> Enclosed is my latest kernel patch against 3.5.4.
>
> One of things it addresses is an issue with CONFIG_DISCONTIGMEM introduced in 3.4.
>
> Another new thing is a hack which tries to paper over a softirq problem. For some reason,
> we sometimes run off the end of the vector pending list causing a panic. This is probably related
> to the restart issues discussed by Al Viro as things were worse with Al's suggested change.
Rolf, Thibaut (on Google+), thanks for pointing out that
without CONFIG_DISCONTIGMEM we don't pickup the other
ranges. I have a patch to make the kernel warnings messages
clearer about this.
Dave, Thanks for the patch!
Cheers,
Carlos.
prev parent reply other threads:[~2012-09-20 4:19 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2012-09-19 1:36 I have 12GB of RAM but I can only use 1GB? Carlos O'Donell
2012-09-19 6:06 ` Rolf Eike Beer
2012-09-19 23:26 ` John David Anglin
2012-09-20 4:19 ` Carlos O'Donell [this message]
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