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Re: [Libvir] Re; virDomainBlockStats



Gareth Bult wrote:
Hi,

I've a number of servers running XEN and am trying to write some code to monitor them through libvirt.
(Xeon/Dual Core/Ubuntu Gutsy/Xen 3.1)

All was going well until I got to virDomainBlockStats and it simply refused to accept my coding ..

My solution (the code now works) is to change the following;

src/stats_linux.c:

#ifndef XENVBD_MAJOR
#define XENVBD_MAJOR 3  //  <--- I changed this!
/*#define XENVBD_MAJOR 202*/
#endif

device = XENVBD_MAJOR * 256 + 1 + minor /* * 16 */;  <-- this too!

It now seems to give me some meaningful numbers without feeding my any error messages.
Can anyone tell me "why" I needed to do this?

I'm using "xvda" as the device path .. tried every other device name I could think of with out any good results ...

Gareth,

What does it print when you do:

  ls -l /dev/xvda*

from within the guest?

Rich.

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