[Xen-bugs] [Bug 140] New: Time stops advancing.

[brazilnut@xxxxxxxxxx]

http://bugzilla.xensource.com/cgi-bin/bugzilla/show_bug.cgi?id=140

           Summary: Time stops advancing.
           Product: Xen
           Version: unstable
          Platform: x86
        OS/Version: Linux-2.6
            Status: NEW
          Severity: normal
          Priority: P2
         Component: Guest-OS
        AssignedTo: xen-bugs@xxxxxxxxxxxxxxxxxxx
        ReportedBy: brazilnut@xxxxxxxxxx
                CC: hohnbaum@xxxxxxxxxx


After running for many hours, my system time seems to have stopped.  This is 
Dom0 only, I have not started xenctld, xenstored, xend, or anything else. 
Time has not gone forwards for over 14 hours now.  This is an IBM summit 
system.  (Not using cyclone, just default tsc). 
 
Wed Aug  3 18:29:44 PDT 2005 
donf@elm3b73:~> date 
Wed Aug  3 18:29:46 PDT 2005 
donf@elm3b73:~> sleep 120 
date 
5 minutes has past... 
^C 
donf@elm3b73:~> sleep 5 
^C 
donf@elm3b73:~> date 
Wed Aug  3 18:29:44 PDT 2005 
donf@elm3b73:~> date; date ; date 
Wed Aug  3 18:29:46 PDT 2005 
Wed Aug  3 18:29:44 PDT 2005 
Wed Aug  3 18:29:46 PDT 2005 
donf@elm3b73:~> date;date;date;date;date;date 
Wed Aug  3 18:29:44 PDT 2005 
Wed Aug  3 18:29:46 PDT 2005 
Wed Aug  3 18:29:44 PDT 2005 
Wed Aug  3 18:29:46 PDT 2005 
Wed Aug  3 18:29:44 PDT 2005 
Wed Aug  3 18:29:46 PDT 2005 
donf@elm3b73:~/aug/xen-unstable.hg> hg tip 
changeset:   6005:60c4cd9ebaa16a6fcac05275e5e21056794339ad 
tag:         tip 
user:        kaf24@xxxxxxxxxxxxxxxxxxxx 
date:        Wed Aug  3 09:11:32 2005 
summary:     Move more drivers to bind_evtchn_to_irqhandler() interface. 
 
There are also a lot of messages in the log like: 
Timer ISR/4: Time went backwards: delta=-237195763 cpu_delta=6752804237 
shadow=30692209923056 off=702881181 processed=30693150000000 
cpu_processed=30686160000000 
 0: 30693150000000 
 1: 30686230000000 
 2: 30686160000000 
 3: 30686980000000 
 4: 30686160000000 
 5: 30690470000000 
 6: 30692530000000 
 7: 30692530000000



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