On Tue, Jun 01, 2021 at 03:24:02PM +0200, Gerd Hoffmann wrote: > Setting SYSTEMTAP_TAPSET to some value other than > /usr/share/systemtap/tapsets results in systemtap not finding the > standard tapset library any more, which in turn breaks tracing because > pid() and other standard systemtap functions are not available any more. > > So using SYSTEMTAP_TAPSET to point systemtap to the qemu probes will > only work for the prefix=/usr installs because both qemu and system > tapsets in the same directory then. All other prefixes are broken. > > Fix that by using the "-I $tapsetdir" command line switch instead. > > Signed-off-by: Gerd Hoffmann <kra...@redhat.com> > --- > scripts/qemu-trace-stap | 14 ++++---------- > 1 file changed, 4 insertions(+), 10 deletions(-)
Reviewed-by: Daniel P. Berrangé <berra...@redhat.com> I'm still a little confused how I ever missed this problem when testing usage ! Regards, Daniel -- |: https://berrange.com -o- https://www.flickr.com/photos/dberrange :| |: https://libvirt.org -o- https://fstop138.berrange.com :| |: https://entangle-photo.org -o- https://www.instagram.com/dberrange :|
