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Bug 230550

Summary: Timer ISR/0: Time went backwards flooding /var/log/messages
Product: [Fedora] Fedora Reporter: Tru Huynh <tru>
Component: kernel-xenAssignee: Xen Maintainance List <xen-maint>
Status: CLOSED WONTFIX QA Contact: Virtualization Bugs <virt-bugs>
Severity: medium Docs Contact:
Priority: medium    
Version: 6CC: bstein, djuran, xen-maint
Target Milestone: ---   
Target Release: ---   
Hardware: x86_64   
OS: Linux   
Fixed In Version: Doc Type: Bug Fix
Doc Text:
Story Points: ---
Clone Of: Environment:
Last Closed: 2008-02-26 23:59:11 UTC Type: ---
Regression: --- Mount Type: ---
Documentation: --- CRM:
Verified Versions: Category: ---
oVirt Team: --- RHEL 7.3 requirements from Atomic Host:
Cloudforms Team: --- Target Upstream Version:

Description Tru Huynh 2007-03-01 14:12:38 UTC
Description of problem:
/var/log/messages filled with "Timer ISR/0: Time went backwards: delta=..."

Version-Release number of selected component (if applicable):

How reproducible:

Steps to Reproduce:
1. install fc6 x86_64 on a Sony VGN-SZ3XP/C Intel core duo2 T7200
2. boot 2.6.19-1.2911.fc6xen
Actual results:

Timer ISR/0: Time went backwards: delta=-58796209 delta_cpu=61203791 shadow=1212
6198740954 off=562735636 processed=12126820000000 cpu_processed=12126700000000
 0: 12126700000000
 1: 12126820000000
printk: 25 messages suppressed.
Timer ISR/0: Time went backwards: delta=-11505215 delta_cpu=28494785 shadow=1213
1323040307 off=825697898 processed=12132160000000 cpu_processed=12132120000000
 0: 12132120000000
 1: 12132160000000

Expected results:
no such errors 

Additional info:
2.6.19-1.2911.fc6 (no xen) works fin on the same machine
VT is disabled by the bios :(

Comment 1 Red Hat Bugzilla 2007-07-25 01:39:10 UTC
change QA contact

Comment 2 Chris Lalancette 2008-02-26 23:59:11 UTC
This report targets FC6, which is now end-of-life.

Please re-test against Fedora 7 or later, and if the issue persists, open a new bug.


Comment 3 Tru Huynh 2008-02-27 11:59:01 UTC
re-opened for fc8 ->