On Thu, Aug 18, 2016 at 01:31:19PM +0000, Nir Levy wrote: > Daniel, Thanks for your response. > > But I have succeeded using simpletrace when building libvirt from source file > into some/other/dir/install
I can only assume you built libvirt so that qemu runs as root, instead of an unprivileged user account, and/or have not enabled selinux for libvirt. > > I am using Fedora22 which does not support lttng. > at the mather of fact I have installed lttng before and build the kernel > modules (2.6.0) still no trace generated. > Michael Jeanson is working for supplying modules (2.8.0) for the next fedora > (25) > fedora 23 and 24 do support systemtap but not over 22 on my kernel 4.2.8 > (which we stick to in Asocs due to known performance degradation in later > releases) systemtap is supported in all Fedora releases - if there's any problems do file bugs against it, as its expected to work as it is the supported tracing mechanism for Fedora with qemu and libvirt. Regards, Daniel -- |: http://berrange.com -o- http://www.flickr.com/photos/dberrange/ :| |: http://libvirt.org -o- http://virt-manager.org :| |: http://autobuild.org -o- http://search.cpan.org/~danberr/ :| |: http://entangle-photo.org -o- http://live.gnome.org/gtk-vnc :|
