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RE: [Xen-devel] [PATCH] Disable Xen PowerNow! support on Opteron 2nd gen and earlier processors
- To: "Keir Fraser" <Keir.Fraser@xxxxxxxxxxxx>
- From: "Langsdorf, Mark" <mark.langsdorf@xxxxxxx>
- Date: Mon, 28 Jan 2008 15:52:56 -0600
- Cc: Ian Pratt <Ian.Pratt@xxxxxxxxxxxxx>, xen-devel@xxxxxxxxxxxxxxxxxxx
- Delivery-date: Mon, 28 Jan 2008 13:54:31 -0800
- List-id: Xen developer discussion <xen-devel.lists.xensource.com>
- Thread-index: AchfqSS0Yzu1EMucEdyNUQAWy6hiGQAC1IswAA/P2j0ABsqr4AB6NDvw
- Thread-topic: [Xen-devel] [PATCH] Disable Xen PowerNow! support on Opteron 2nd gen and earlier processors
> Please test with latest xen-unstable. As of changeset 16897 I
> have fixed the vcpu affinity change, so that should actually
> work,
It doesn't, for some reason. It seems to lock up on the
v->arch.schedule_tail = continue_hypercall_on_cpu_helper
for no reason that I can tell. If I comment out that line,
the system boots fine, but if that is in Xen, the machine
softlocks shortly after starting cpufreq. Unfortunately,
cpufreq starts well before any console, so I can't get a
lot of information out the system.
I'll continue working on this, but any advance would be
appreciated.
-Mark Langsdorf
Operating System Research Center
AMD
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