[libvirt] [PATCH 0/7] Update systemtap probing

[lvroyce]

You're right, that is the root cause of the numeric errors, supporting 
systemtap should install not only package "systemtap",but also 
"systemtap*" to get dtrace installed.
And also,many Ubuntu versions  have a bug called:"systemtap process 
probes requires CONFIG_UTRACE enabled",which means I can't use it 
without recompile the kernel :'(

Thank you so much!