[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

Re: [Xen-devel] Is there an issue with turning off "scrubbing free RAM" on boot with Xen 4.1.3

To: Roddy Rodstein <roddy.rodstein@xxxxxxxxxxxxxxxxxx>
From: Ian Campbell <Ian.Campbell@xxxxxxxxxx>
Date: Thu, 10 Oct 2013 09:47:43 +0100
Cc: xen-devel@xxxxxxxxxxxxxxxxxxxx
Delivery-date: Thu, 10 Oct 2013 08:48:10 +0000
List-id: Xen developer discussion <xen-devel.lists.xen.org>

On Wed, 2013-10-09 at 11:24 -0700, Roddy Rodstein wrote:
> Could you please share your comments about turning of RAM scrubbing,
> i.e. have you seen any consequences, security issues and/or threats,
> red flags, etc...?

The scrub is there to protect against possibly stale data in RAM left
over from guests running during the previous boot being exposed to new
guests. If you don't care about that threat then you don't need to scan
the boot RAM.

Ian.

_______________________________________________
Xen-devel mailing list
Xen-devel@xxxxxxxxxxxxx
http://lists.xen.org/xen-devel

References:
- [Xen-devel] Is there an issue with turning off "scrubbing free RAM" on boot with Xen 4.1.3
  - From: Roddy Rodstein

Prev by Date: Re: [Xen-devel] [PATCH 0/2] Few qemu-xen configuration fixes and improvement.
Next by Date: Re: [Xen-devel] [PATCH] tools: adds tracer on qemu-xen debug configure options
Previous by thread: Re: [Xen-devel] Is there an issue with turning off "scrubbing free RAM" on boot with Xen 4.1.3
Next by thread: Re: [Xen-devel] Is there an issue with turning off "scrubbing free RAM" on boot with Xen 4.1.3
Index(es):
- Date
- Thread

Lists.xenproject.org is hosted with RackSpace, monitoring our
servers 24x7x365 and backed by RackSpace's Fanatical Support®.