system monitor wrong if cpu offline

[Robert Bernecky]

I observe two faults in the Ubuntu 14.04LTS system monitor:

1. If a CPU is marked offline, the system monitor does not report
any higher-numbered online CPUs. E.g.,:

      a. Run system monitor - it reports 8 CPUs.
      b. Mark CPU 3 offline, via:

           echo 0 | sudo tee /sys/devices/system/cpu/cpu3/online

      c. Restart system monitor: It now reports only 3 CPUS (1,2,3).

   The system monitor display not change immediately, so I suspect the
   immediate failure is caused at system monitor initialization, presumably
   because it assumes that the first offline CPU indicates the end of
   CPUs for this system. Which is not true, of course.

2. In the system monitor display, CPUs are numbered 1...N, for an N-CPU
    system. This is incorrect, because CPUs are numbered from 0, not 1.
    This can lead to confusion when looking at what particular processors
    are doing.

[Ubuntu Foundations Team Bug Bot (crichton)]

Thank you for taking the time to report this bug and helping to make Ubuntu better. It seems that your bug report is not filed about a specific source package though, rather it is just filed against Ubuntu in general. It is important that bug reports be filed about source packages so that people interested in the package can find the bugs about it. You can find some hints about determining what package your bug might be about at https://wiki.ubuntu.com/Bugs/FindRightPackage. You might also ask for help in the #ubuntu-bugs irc channel on Freenode.

To change the source package that this bug is filed about visit https://bugs.launchpad.net/ubuntu/+bug/1404990/+editstatus and add the package name in the text box next to the word Package.

[This is an automated message. I apologize if it reached you inappropriately; please just reply to this message indicating so.]

[Sebastien Bacher (seb128)]

Thank you for taking the time to report this bug and helping to make Ubuntu better. The issue you are reporting is an upstream one and it would be nice if somebody having it could send the bug to the developers of the software by following the instructions at https://wiki.ubuntu.com/Bugs/Upstream/GNOME. If you have done so, please tell us the number of the upstream bug (or the link), so we can add a bugwatch that will inform us about its status. Thanks in advance.

[Robert Roth (evfool)]

Thank you for taking the time to report this bug and helping to make Ubuntu better. This particular bug has already been reported and is a duplicate of bug 810498, so it is being marked as such. Please look at the other bug report to see if there is any missing information that you can provide, or to see if there is a workaround for the bug. Additionally, any further discussion regarding the bug should occur in the other report. Feel free to continue to report any other bugs you may find.