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Description of problem:
peekfd utility from psmisc package doesn't work on ppc64 architecture. It's generate endless output when run without file descriptor argument. It doesn't generate any output when run with fd argument.

Version-Release number of selected component (if applicable):
psmisc-22.6-15.el6

How reproducible:
always, using scenario bellow

Steps to Reproduce:
1. get PID of bash (for example)
2. run peekfd <PID>
  
Actual results:
Endless output is generated.

Expected results:
Output is generated only when something is typed or print within bash process.

Created attachment 475566 [details]
proposed patch

PowerPC peekfd was written to support 32-bit registers only.
Proposed patch fixes this issue.

This request was evaluated by Red Hat Product Management for
inclusion in the current release of Red Hat Enterprise Linux.
Because the affected component is not scheduled to be updated
in the current release, Red Hat is unfortunately unable to
address this request at this time. Red Hat invites you to
ask your support representative to propose this request, if
appropriate and relevant, in the next release of Red Hat
Enterprise Linux. If you would like it considered as an
exception in the current release, please ask your support
representative.

Since the problem described in this bug report should be
resolved in a recent advisory, it has been closed with a
resolution of ERRATA.

For information on the advisory, and where to find the updated
files, follow the link below.

If the solution does not work for you, open a new bug report.

https://rhn.redhat.com/errata/RHBA-2017-0771.html