Red Hat Bugzilla – Bug 489310
[Intel 5.4 FEAT] TSC keeps running in C3+
Last modified: 2015-05-04 21:16:27 EDT
This bug has been copied from bug #474091 and has been proposed
to be backported to 5.3 z-stream (EUS).
incremental patch (474091 comment #40)
RH QA captured the problem when testing the NONSTOP_TSC feature with 32-bit kernel. She found the clock source under sys fs is still HPET on hp-xw8800-01.rhts.bos.redhat.com.
Part of code got neglected from my original back port, because it doesn't appear in the corresponding Upstream commit.
And upstream still use this:
The following incremental patch should be include to enable TSC as clock source by default in 32-bit kernel on Intel NHM and newer processors.
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.
Thanks everyone for all your work on this!
As discussed in today's meeting, fix delivered.
Internal Status set to 'Resolved'
Status set to: Closed by Tech
Interim resolution set to 'Hotfix'
Resolution set to: 'Completed'
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