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[Xen-devel] Re: XenMon failure to get trace buffers

To: JP S <jpsanon@xxxxxxxxx>
Subject: [Xen-devel] Re: XenMon failure to get trace buffers
From: Rob Gardner <rob.gardner@xxxxxx>
Date: Tue, 04 Apr 2006 08:49:42 -0600
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JP S wrote:

I am attempting to try out xenmon and am getting a error when I start it.
ERROR: Failure to get trace buffer pointer from Xen (22 = invalid argument) I also tried running "tbctl 1" but get "Enable/Disable hypercall failure: Invaid argument"

Sorry about the documentation; It leaves out an important step. You have to run "setsize" to allocate the trace buffer memory. The argument is in number of pages, ie, "setsize 20". Then you can run tbctl. This is one of the things I am fixing in the next release of xenmon- it will do this automatically.


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