From: Greg KH <gregkh@suse.de>
To: Anton Blanchard <anton@samba.org>
Cc: 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 08:35:43 +0200 [thread overview]
Message-ID: <20110915063543.GA29211@suse.de> (raw)
In-Reply-To: <20110915062615.782bc4df@kryten>
On Thu, Sep 15, 2011 at 06:26:15AM +1000, Anton Blanchard 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
>
> Return -EINVAL instead of creating these bad regions.
>
> Signed-off-by: Anton Blanchard <anton@samba.org>
> ---
Is this something that should go into 3.1 and older kernels to properly
handle this type of error?
greg k-h
WARNING: multiple messages have this Message-ID (diff)
From: Greg KH <gregkh@suse.de>
To: Anton Blanchard <anton@samba.org>
Cc: 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 08:35:43 +0200 [thread overview]
Message-ID: <20110915063543.GA29211@suse.de> (raw)
In-Reply-To: <20110915062615.782bc4df@kryten>
On Thu, Sep 15, 2011 at 06:26:15AM +1000, Anton Blanchard 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
>
> Return -EINVAL instead of creating these bad regions.
>
> Signed-off-by: Anton Blanchard <anton@samba.org>
> ---
Is this something that should go into 3.1 and older kernels to properly
handle this type of error?
greg k-h
next prev parent reply other threads:[~2011-09-15 6:47 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 [this message]
2011-09-15 6:35 ` Greg KH
2011-09-15 7:58 ` Andrew Morton
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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