Bug 611232 - -rtc cmdline changes
Summary: -rtc cmdline changes
Status: CLOSED NOTABUG
Alias: None
Product: Red Hat Enterprise Linux 6
Classification: Red Hat
Component: libvirt (Show other bugs)
(Show other bugs)
Version: 6.0
Hardware: All Linux
low
medium
Target Milestone: rc
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Assignee: Daniel Veillard
QA Contact: Virtualization Bugs
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Depends On:
Blocks:
TreeView+ depends on / blocked
 
Reported: 2010-07-04 11:53 UTC by Dor Laor
Modified: 2013-01-09 21:19 UTC (History)
5 users (show)

Fixed In Version:
Doc Type: Bug Fix
Doc Text:
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Last Closed: 2010-07-05 10:31:38 UTC
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oVirt Team: ---
RHEL 7.3 requirements from Atomic Host:
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Description Dor Laor 2010-07-04 11:53:57 UTC
Description of problem:

Libvirt should pass this cmdline:
'-rtc base=utc,clock=host,driftfix=slew'
instead of only -etc base=utc.

Libvirt should also abundant the old -rtc-td-hack

Comment 1 Daniel Berrange 2010-07-05 10:31:38 UTC
Libvirt won't hardcode time keeping options, but it will pass whatever command line is configured for the guest. To get that particular set of options you need to configure

  <clock offset='utc'>
    <timer name='rtc' tickpolicy='catchup' track='wall'/>
  </clock>


For compatibility with old QEMU, libvirt will use -rtc-td-hack if it is present, but -rtc is not present.


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