From: VMHB <vmhb@gnuit.co.uk>
To: linux-kernel@vger.kernel.org
Subject: Memory power management
Date: Wed, 17 Feb 2016 16:10:44 +0000 [thread overview]
Message-ID: <2179037.fdTiYCS22n@linux-zu3i.site> (raw)
While running kernel 3.16.7-29 on an AMD based machine the clock speed is
being changed on the DDR3 modules. This is causing issues with our debugging
tools which rely on the clock.
As far as I know this should only be changed following a POWER DOWN or SELF
REFRESH sequence. This only seems to happen when Linux is booted and not under
the BIOS.
I have searched in the kernel code and on the internet and although there is
information and patches regarding power saving modes I cannot find any code in
the kernel I am using.
Can someone please give me any information on the source of this and
preferably how it can be stopped?
I am not subscribed to the list and would like to be copied personally with
any responses.
reply other threads:[~2016-02-17 16:36 UTC|newest]
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