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This bug has been copied from bug #696337 and has been proposed
to be backported to 6.0 z-stream (EUS).

    Technical note added. If any revisions are required, please edit the "Technical Notes" field
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    New Contents:
During light or no network traffic, the active-backup interface bond using ARP monitoring with validation could go down and return due to an overflow or underflow of system timer interrupt ticks (jiffies). With this update, the jiffies calculation issues problems have been fixed and a bond interface works as expected.

We do not have the evironment needed for testing this bug.
Review the code with kernel-2.6.32-71.29.1.el6 and set SanityOnly.

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/RHSA-2011-0498.html