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Description of problem:
s390x /proc/cpuinfo returns wrong number of processors therefor after registration there is wrong number of processors in Satellite Hardware information.

Version-Release number of selected component (if applicable):
rhn-client-tools-1.0.0-38.el6.noarch

How reproducible:
Always

Steps to Reproduce:
1. Log into s390x machine that has more than 1 processor
2. cat /proc/cpuinfo
3. ls -d  /sys/devices/system/cpu/cpu[0-9] | grep -c cpu[[:digit:]]
4. rhn_register into Satellite and check System > Hardware
  
Actual results:
Numbers differ

Expected results:
Same numbers

Additional info:
RHEL5 /proc/cpuinfo shows proper information.
Explanation for this bug is in bug 621041 comment 18.

After discussion with dhorak short clarification.

There is cpuplugd daemon that automaticaly adds/removes cpus based on load and /proc/cpuinfo shows number of cpus defined in that moment. Regarding the fact that this bug is not an issue in RHEL5 - maybe this daemon is not activated by default or it depends on kernel.

Strategy of using /sys/devices/cpu for getting total number of cpus should be the valid on.

Fixed in spacewalk.git in commits:
823888291bdc6f9cd4d843d18bd7ea88241fac89
3ecd060daf6b53baf63122c80c1d52fdbcba6c38

Cherry picked to satellite.git as commits:
ba1b95e5540c39b2aeacfdb4f0a42e6de97e1453
dd8f84ad7fb07be944f5796abaf134806d3d4413

Verified in rhn-client-tools-1.0.0-56.el6 - Hardware tab now shows correct number.

An advisory has been issued which should help the problem
described in this bug report. This report is therefore being
closed with a resolution of ERRATA. For more information
on therefore solution and/or where to find the updated files,
please follow the link below. You may reopen this bug report
if the solution does not work for you.

http://rhn.redhat.com/errata/RHBA-2011-0565.html