From: Andrew Morton <akpm00@gmail.com>
To: Anton Blanchard <anton@samba.org>
Cc: gregkh@suse.de, linuxppc-dev@lists.ozlabs.org,
linux-kernel@vger.kernel.org
Subject: Re: [PATCH] memory hotplug: Refuse to add unaligned memory regions
Date: Thu, 15 Sep 2011 00:58:48 -0700 [thread overview]
Message-ID: <20110915005848.59e6fb36.akpm@linux-foundation.org> (raw)
In-Reply-To: <20110915062615.782bc4df@kryten>
On Thu, 15 Sep 2011 06:26:15 +1000 Anton Blanchard <anton@samba.org> wrote:
>
> The sysfs memory probe interface allows unaligned regions
> to be added:
>
> # echo 0xffffff > /sys/devices/system/memory/probe
>
> # cat /proc/iomem
> 00ffffff-01fffffe : System RAM
> 01ffffff-02fffffe : System RAM
> 02ffffff-03fffffe : System RAM
> 03ffffff-04fffffe : System RAM
> 04ffffff-05fffffe : System RAM
Then don't do that?
WARNING: multiple messages have this Message-ID (diff)
From: Andrew Morton <akpm00@gmail.com>
To: Anton Blanchard <anton@samba.org>
Cc: gregkh@suse.de, nfont@austin.ibm.com,
linuxppc-dev@lists.ozlabs.org, linux-kernel@vger.kernel.org
Subject: Re: [PATCH] memory hotplug: Refuse to add unaligned memory regions
Date: Thu, 15 Sep 2011 00:58:48 -0700 [thread overview]
Message-ID: <20110915005848.59e6fb36.akpm@linux-foundation.org> (raw)
In-Reply-To: <20110915062615.782bc4df@kryten>
On Thu, 15 Sep 2011 06:26:15 +1000 Anton Blanchard <anton@samba.org> wrote:
>
> The sysfs memory probe interface allows unaligned regions
> to be added:
>
> # echo 0xffffff > /sys/devices/system/memory/probe
>
> # cat /proc/iomem
> 00ffffff-01fffffe : System RAM
> 01ffffff-02fffffe : System RAM
> 02ffffff-03fffffe : System RAM
> 03ffffff-04fffffe : System RAM
> 04ffffff-05fffffe : System RAM
Then don't do that?
next prev parent reply other threads:[~2011-09-15 7:58 UTC|newest]
Thread overview: 7+ messages / expand[flat|nested] mbox.gz Atom feed top
2011-09-14 20:26 [PATCH] memory hotplug: Refuse to add unaligned memory regions Anton Blanchard
2011-09-15 6:35 ` Greg KH
2011-09-15 6:35 ` Greg KH
2011-09-15 7:58 ` Andrew Morton [this message]
2011-09-15 7:58 ` Andrew Morton
2011-11-09 7:28 ` Chen Gong
2011-11-09 7:28 ` Chen Gong
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