Bug 185317

Summary: kernel: Timer ISR/0: Time went backwards
Product: [Fedora] Fedora Reporter: Orion Poplawski <orion>
Component: kernel-xenAssignee: Juan Quintela <quintela>
Status: CLOSED RAWHIDE QA Contact: Brian Brock <bbrock>
Severity: medium Docs Contact:
Priority: medium    
Version: rawhideCC: bstein, wtogami
Target Milestone: ---   
Target Release: ---   
Hardware: All   
OS: Linux   
Whiteboard:
Fixed In Version: Doc Type: Bug Fix
Doc Text:
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Clone Of: Environment:
Last Closed: 2006-03-15 21:37:33 UTC Type: ---
Regression: --- Mount Type: ---
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Verified Versions: Category: ---
oVirt Team: --- RHEL 7.3 requirements from Atomic Host:
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Description Orion Poplawski 2006-03-13 17:46:01 UTC 
Description of problem:

Seeing lots of these:

Mar 13 10:45:38 hammer kernel: Timer ISR/0: Time went backwards: delta=10704325
cpu_delta=-13295675 shadow=1498014236562 off=368468468 processed=1498372000000
cpu_processed=1498396000000
Mar 13 10:45:38 hammer kernel: Timer ISR/0: Time went backwards: delta=713653
cpu_delta=-3286347 shadow=1498014236562 off=378477489 processed=1498392000000
cpu_processed=1498396000000
Mar 13 10:45:45 hammer kernel: Timer ISR/0: Time went backwards: delta=6718011
cpu_delta=-29281989 shadow=1504014291147 off=648427706 processed=1504656000000
cpu_processed=1504692000000
Mar 13 10:45:45 hammer kernel: Timer ISR/0: Time went backwards: delta=714067
cpu_delta=-19285933 shadow=1504014291147 off=658423273 processed=1504672000000
cpu_processed=1504692000000
Mar 13 10:45:45 hammer kernel: Timer ISR/0: Time went backwards: delta=2719206
cpu_delta=-9280794 shadow=1504014291147 off=668428389 processed=1504680000000
cpu_processed=1504692000000
Mar 13 10:45:53 hammer kernel: Timer ISR/0: Time went backwards: delta=10205669
cpu_delta=-1794331 shadow=1513014376517 off=247829870 processed=1513252000000
cpu_processed=1513264000000
Mar 13 10:45:55 hammer kernel: Timer ISR/0: Time went backwards: delta=2984517
cpu_delta=-5015483 shadow=1515014435224 off=128549792 processed=1515140000000
cpu_processed=1515148000000
Mar 13 10:49:17 hammer kernel: Timer ISR/0: Time went backwards: delta=4762455
cpu_delta=-3237545 shadow=1717016980266 off=323782829 processed=1717336000000
cpu_processed=1717344000000


Version-Release number of selected component (if applicable):
2.6.15-1.2041_FC5xen0

also seen with 2038_FC5xen0
Comment 1 Stephen Tweedie 2006-03-15 21:37:33 UTC 
Should be fixed in latest rawhide (1.2054 kernel), please reopen if it recurs.