Thank you, I will try Michael's patches on a vanilla 3.0 or 3.2 kernel and report back. However, on first sight the patches enable profiling on unprivileged guests (although the author calls it passive profiling, which as far as I know is the opposite), and I am trying to do unprivileged dom0 profiling. Lets hope this helps! On Wed, Mar 28, 2012 at 5:43 PM, Wei Liu > wrote: > On Wed, 2012-03-28 at 15:55 +0100, Pablo Llopis wrote: > > Hello Xen developers, > > > > > > I sent a similar message to xen-users about a week ago, did not obtain > > any response and only now realized that I should have sent this here > > instead (http://xenoprof.sourceforge.net/ says to write to this list). > > Apologies if you see this message twice. > > > > There are some patches floating around on xen-devel: > > http://marc.info/?l=xen-devel&m=132779518918042&w=2 > http://marc.info/?l=xen-devel&m=132708552318073&w=2 > > > > Wei. > > >