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xen-devel
Re: [Xen-devel] PVops domain 0 crash on NUMA system only Node==1 present
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To: |
Jeremy Fitzhardinge <jeremy@xxxxxxxx> |
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Subject: |
Re: [Xen-devel] PVops domain 0 crash on NUMA system only Node==1 present (Was: Re: Bug#603632: linux-image-2.6.32-5-xen-amd64: Linux kernel 2.6.32/xen/amd64 booting fine on bare metal, but not as dom0 with Xen 4.0.1 (Dell R410)) |
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From: |
Ian Campbell <Ian.Campbell@xxxxxxxxxx> |
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Date: |
Fri, 3 Dec 2010 09:20:21 +0000 |
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Cc: |
xen-devel <xen-devel@xxxxxxxxxxxxxxxxxxx>, Keir Fraser <keir@xxxxxxx>, Vincent CARON <zerodeux@xxxxxxxxxxxx>, Vincent Caron <vcaron@xxxxxxxxxxxxx>, Cris Daniluk <cris.daniluk@xxxxxxxxx>, "603632@xxxxxxxxxxxxxxx" <603632@xxxxxxxxxxxxxxx> |
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Delivery-date: |
Fri, 03 Dec 2010 01:22:36 -0800 |
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<1291366377.5514.15046.camel@xxxxxxxxxxxxxxxxxxxxxx> |
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Citrix Systems, Inc. |
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References: |
<20101115233253.11935.35707.reportbug@zerohal> <1290513067.31507.7699.camel@xxxxxxxxxxxxxxxxxxxxxx> <1290538327.9844.26.camel@xxxxxxxxxxxxxxxxxxxxx> <1290550323.9844.85.camel@xxxxxxxxxxxxxxxxxxxxx> <1290550726.9844.90.camel@xxxxxxxxxxxxxxxxxxxxx> <1291333639.25131.48.camel@zerohal> <4CF83606.6050904@xxxxxxxx> <1291366377.5514.15046.camel@xxxxxxxxxxxxxxxxxxxxxx> |
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xen-devel-bounces@xxxxxxxxxxxxxxxxxxx |
On Fri, 2010-12-03 at 08:52 +0000, Ian Campbell wrote:
> On Fri, 2010-12-03 at 00:12 +0000, Jeremy Fitzhardinge wrote:
> > What about "numa=fake=1"? I think that should force it to create a
> > single NUMA node.
>
> Is there any advantage to this vs numa=noacpi? Do they effectively end
> up doing the same thing?
The help text for CONFIG_NUMA_EMU (which enables numa=fake=N) says:
Enable NUMA emulation. A flat machine will be split
into virtual nodes when booted with "numa=fake=N", where N is
the
number of nodes. This is only useful for debugging.
I don't think this is the option we want.
Ian.
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