Epics time goes crazy if I run softIoc with Epics base 3.14.12 (with all official patches) in a
virtual machine.
I use following configuration:
Hypervisor: kvm
Architecture: x86_64
Guest: Windows XP (32-bit)
All works fine if I use a single core VM.
But if I use two or more CPU cores Epics time does several funny actions.
* I also get events with a new value but previous time stamp.
* Timestamps are wrong and in the future.
* I get the message: "currentTime::getCurrentTime(): 7623636.000000sec time discontinuity detected".
I've logged a test variable, which increments value every second.
-------------------------------------------------------------------------
record(ai, "demoHost:aiExample")
{
field(DESC, "Analog input")
field(INP, "demoHost:calcExample.VAL NPP NNS")
field(EGU, "Counts")
field(HOPR, "10")
field(LOPR, "0")
field(HIHI, "8")
field(HIGH, "6")
field(LOW, "4")
field(LOLO, "2")
field(HHSV, "MAJOR")
field(HSV, "MINOR")
field(LSV, "MINOR")
field(LLSV, "MAJOR")
}
record(calc, "demoHost:calcExample")
{
field(DESC, "Counter")
field(SCAN, "1 second")
field(FLNK, "demoHost:aiExample")
field(CALC, "(A<B)?(A+C):D")
field(INPA, "demoHost:calcExample.VAL NPP NNS")
field(INPB, "9")
field(INPC, "1")
field(INPD, "0")
field(EGU, "Counts")
field(HOPR, "10")
field(LOPR, "0")
field(HIHI, "8")
field(HIGH, "6")
field(LOW, "4")
field(LOLO, "2")
field(HHSV, "MAJOR")
field(HSV, "MINOR")
field(LSV, "MINOR")
field(LLSV, "MAJOR")
}
-------------------------------------------------------------------------
This is the log of "camonitor.exe":
###################################
One second = 1 minute?!!!
=========================
...
demoHost:aiExample 2011-02-02 11:04:02.893304 5
demoHost:aiExample 2011-02-02 11:04:55.757528 6 HIGH MINOR
demoHost:aiExample 2011-02-02 11:05:35.900993 7 HIGH MINOR
demoHost:aiExample 2011-02-02 11:05:44.292108 8 HIHI MAJOR
demoHost:aiExample 2011-02-02 11:06:10.091333 9 HIHI MAJOR
demoHost:aiExample 2011-02-02 11:07:11.216996 0 LOLO MAJOR
demoHost:aiExample 2011-02-02 11:08:16.242185 1 LOLO MAJOR
demoHost:aiExample 2011-02-02 11:09:00.773516 2 LOLO MAJOR
demoHost:aiExample 2011-02-02 11:09:43.136728 3 LOW MINOR
demoHost:aiExample 2011-02-02 11:10:25.476922 4 LOW MINOR
demoHost:aiExample 2011-02-02 11:11:32.704872 5
...
Allways the same time stamp?!!!
===============================
...
demoHost:aiExample 2011-02-02 12:58:24.858648 5
demoHost:aiExample 2011-02-02 12:58:24.858648 6 HIGH MINOR
demoHost:aiExample 2011-02-02 12:58:24.858648 7 HIGH MINOR
demoHost:aiExample 2011-02-02 12:58:24.858648 8 HIHI MAJOR
demoHost:aiExample 2011-02-02 12:58:24.858648 9 HIHI MAJOR
demoHost:aiExample 2011-02-02 12:58:24.858648 0 LOLO MAJOR
demoHost:aiExample 2011-02-02 12:58:24.858648 1 LOLO MAJOR
demoHost:aiExample 2011-02-02 12:58:24.858648 2 LOLO MAJOR
demoHost:aiExample 2011-02-02 12:58:24.858648 3 LOW MINOR
demoHost:aiExample 2011-02-02 12:58:24.858648 4 LOW MINOR
demoHost:aiExample 2011-02-02 12:58:24.858648 5
demoHost:aiExample 2011-02-02 12:58:24.858648 6 HIGH MINOR
demoHost:aiExample 2011-02-02 12:58:24.858648 7 HIGH MINOR
demoHost:aiExample 2011-02-02 12:58:24.858648 8 HIHI MAJOR
demoHost:aiExample 2011-02-02 12:58:24.858648 9 HIHI MAJOR
demoHost:aiExample 2011-02-02 12:58:24.858648 0 LOLO MAJOR
demoHost:aiExample 2011-02-02 12:58:24.858648 1 LOLO MAJOR
demoHost:aiExample 2011-02-02 12:58:24.858648 2 LOLO MAJOR
demoHost:aiExample 2011-02-02 12:58:24.858648 3 LOW MINOR
demoHost:aiExample 2011-02-02 12:58:24.858648 4 LOW MINOR
demoHost:aiExample 2011-02-02 12:58:24.858648 5
...
The error message
=================
...
demoHost:aiExample 2011-02-02 13:09:15.978653 0 LOLO MAJOR
demoHost:aiExample 2011-02-02 13:09:15.978653 1 LOLO MAJOR
demoHost:aiExample 2011-02-02 13:09:15.978653 2 LOLO MAJOR
currentTime::getCurrentTime(): 7623636.000000 sec time discontinuity detected
currentTime::getCurrentTime(): 250144975.000000 sec time discontinuity detected
demoHost:aiExample 2011-02-02 13:09:15.978653 3 LOW MINOR
currentTime::getCurrentTime(): 249700665.000000 sec time discontinuity detected
demoHost:aiExample 2011-02-02 13:09:15.978653 4 LOW MINOR
demoHost:aiExample 2011-02-02 13:09:15.978653 5
demoHost:aiExample 2011-02-02 13:09:15.978653 6 HIGH MINOR
currentTime::getCurrentTime(): 241047173.000000 sec time discontinuity detected
...
-------------------------------------------------------------------------
Any idea?
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Hahn-Meitner-Platz 1, 14109 Berlin
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Sitz der Gesellschaft: Berlin Handelsregister: AG Charlottenburg, 89 HRB 5583
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mail0.bessy.de 02/02/11 at Helmholtz-Zentrum Berlin GmbH.
begin:vcard
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adr:;;Albert-Einstein-Str.15;Berlin;Berlin;12489;Deutschland
email;internet:[email protected]
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Mitglied der Hermann von Helmholtz-Gemeinschaft Deutscher Forschungszentr=
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