On Wed, Oct 26, 2011 at 01:50:04PM +0800, lvroyce wrote:
> I believe enable systemtap will be very helpful for debugging.But I
> encountered belowing error when enable systemtap support:
>
> *emantic error: probe point mismatch at position 0 (alternatives:
> __nfs __scheduler __signal __tcpmib __vm _linuxmib _signal _sunrpc
> _syscall _vfs begin begin(number) end end(number) error
> error(number) generic ioblock ioblock_trace ioscheduler
> ioscheduler_trace ipmib irq_handler kernel kprobe kprocess linuxmib
> module(string) nd_syscall netdev never nfs nfsd perf process
> process(number) process(string) procfs procfs(string) scheduler scsi
> signal socket softirq stap staprun sunrpc syscall tcp tcpmib timer
> tty udp vfs vm workqueue): identifier 'libvirt' at :130:7 while
> resolving probe point libvirt.event_poll.run
> source: probe libvirt.event_poll.run {
> ^
> Pass 2: analysis failed. Try again with another '--vp 01' option.
>
> *Here's my environment:
> * Ubuntu 11.04 amd64
> configured --with-dtrace --enable-shared=no --with-pic(fPIC flag
> also tried)
> dtrace installed and compile probe with dtrace -64*
>
> Would somebody pls give me some advice with this systemtap issue?
This means the libvirt_probes.stp file was not found in
/usr/share/systemtap/tapset. Presumably you didn't do a
'make install' step, or you didn't set --prefix=/usr when
building. If you installed into a different directory, you
can try doing 'stap -I/your/other/location/share/systemtap/tapset demo.stp'
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 :|
--
libvir-list mailing list
libvir-list@xxxxxxxxxx
https://www.redhat.com/mailman/listinfo/libvir-list