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Re: [Xen-devel] Is trace defaulty enabled in Xen built? bug?

from [Dulloor] [Permanent Link][Original]
To: Hui Kang <hkang@xxxxxxxxxxxxx>
Subject: Re: [Xen-devel] Is trace defaulty enabled in Xen built? bug?
From: Dulloor <dulloor@xxxxxxxxx>
Date: Sat, 23 May 2009 17:14:45 -0400
Cc: "xen-devel@xxxxxxxxxxxxxxxxxxx" <xen-devel@xxxxxxxxxxxxxxxxxxx>
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The message just means that trace records are currently not being dumped.
xenmon/xentrace trigger this trace collection.

-dulloor

On Sat, May 23, 2009 at 11:39 AM, Hui Kang <hkang@xxxxxxxxxxxxx> wrote:
Hi,
I have some confusion of building xen. When I do a  "xm dmesg", the output
gives me
(XEN) Xen trace buffers: disabled.
However, I still can use xenmon to get the trace information. Is this a bug of
xm dmesg?

Second, in the user manual, it says trace is only enabled in the debug mode.
But by default building xen is not
in debug mode. So I think now trace is by default enabled in the build process
whatever debug or not. Is the correct?
Thanks.

- Hui


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