On Fri 06-06-14 18:11:14, Felipe Contreras wrote: > On Fri, Jun 6, 2014 at 5:33 AM, Felipe Contreras > <felipe.contre...@gmail.com> wrote: > > On Fri, Jun 6, 2014 at 4:16 AM, Michal Hocko <mho...@suse.cz> wrote: > > > >> Mel has a nice systemtap script (attached) to watch for stalls. Maybe > >> you can give it a try? > > > > Is there any special configurations I should enable? > > > > I get this: > > semantic error: unresolved arity-1 global array name, missing global > > declaration?: identifier 'name' at /tmp/stapd6pu9A:4:2 > > source: name[t]=execname() > > ^ > > > > Pass 2: analysis failed. [man error::pass2] > > Number of similar error messages suppressed: 71. > > Rerun with -v to see them. > > Unexpected exit of STAP script at > > /home/felipec/Downloads/watch-dstate-new.pl line 320. > > Actually I debugged the problem, and it's that the format of the > script is DOS, not UNIX. After changing the format the script works.
Ups, I've downloaded it from our bugzilla so maybe it just did some tricks with the script. > However, it's not returning anything. It's running, but doesn't seem > to find any stalls. Intereting. It was quite good at pointing at stalls. How are you measuring those stalls during your testing? -- Michal Hocko SUSE Labs -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
