*** This bug is a duplicate of bug 810498 ***
https://bugs.launchpad.net/bugs/810498
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.
** This bug has been marked a duplicate of bug 810498
CPU Resource Monitor ignores CPUs when 1 CPU is hotplugged
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Packages, which is subscribed to gnome-system-monitor in Ubuntu.
https://bugs.launchpad.net/bugs/1404990
Title:
system monitor wrong if cpu offline
Status in gnome-system-monitor package in Ubuntu:
New
Bug description:
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.
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