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* [ kvm-Bugs-3055533 ] guest clock runs 2 times faster than the host clock
@ 2010-08-29 18:45 SourceForge.net
  0 siblings, 0 replies; 6+ messages in thread
From: SourceForge.net @ 2010-08-29 18:45 UTC (permalink / raw)
  To: noreply

Bugs item #3055533, was opened at 2010-08-29 21:07
Message generated for change (Comment added) made by mjtsf
You can respond by visiting: 
https://sourceforge.net/tracker/?func=detail&atid=893831&aid=3055533&group_id=180599

Please note that this message will contain a full copy of the comment thread,
including the initial issue submission, for this request,
not just the latest update.
Category: intel
Group: None
Status: Open
Resolution: None
Priority: 7
Private: No
Submitted By: Bhasker C V (bcv)
Assigned to: Nobody/Anonymous (nobody)
Summary: guest clock runs 2 times faster than the host clock

Initial Comment:
Host: 
 processor: Intel(R) Core(TM)2 Quad CPU           @ 2.66GHz
 OS       : debian squeeze
 Qemu     : qemu-kvm-88 
 Kernel   : Linux bcv 2.6.35.3 #1 SMP PREEMPT Mon Aug 23 17:55:19 BST 2010 x86_64 GNU/Linux
Guest:
 processsor: Intel core2duo smp 2
 OS        : SUSE linux enterprise 10 64bit
 

so running a 64 bit OS on 64 bit debian host.

The clock runs double fast than the host OS. This results in guest gaining time and going ahead the host 


----------------------------------------------------------------------

Comment By: Michael Tokarev (mjtsf)
Date: 2010-08-29 22:45

Message:
Come on, kvm-88 is ancient unsupported development snapshot. It isnt' even
an alpha version.

Please try current code (at least qemu-kvm-0.12.4 as available on
backports.org) and file a new bugreport if the problem is still here.

And if the issue _is_ present in real version, please file a bug in
launchpad.net against qemu project, not here.  This bugtracker is dead.

Thanks.

----------------------------------------------------------------------

Comment By: Bhasker C V (bcv)
Date: 2010-08-29 21:25

Message:
Running a 32 bit OS instead of the 64 bit OS maintains time properly. It is
just that running the 64 bit OS inside this qemu-kvm makes the guest to
gain time.

----------------------------------------------------------------------

You can respond by visiting: 
https://sourceforge.net/tracker/?func=detail&atid=893831&aid=3055533&group_id=180599

^ permalink raw reply	[flat|nested] 6+ messages in thread

* [ kvm-Bugs-3055533 ] guest clock runs 2 times faster than the host clock
@ 2010-08-30 10:03 SourceForge.net
  0 siblings, 0 replies; 6+ messages in thread
From: SourceForge.net @ 2010-08-30 10:03 UTC (permalink / raw)
  To: noreply

Bugs item #3055533, was opened at 2010-08-29 19:07
Message generated for change (Comment added) made by jessorensen
You can respond by visiting: 
https://sourceforge.net/tracker/?func=detail&atid=893831&aid=3055533&group_id=180599

Please note that this message will contain a full copy of the comment thread,
including the initial issue submission, for this request,
not just the latest update.
Category: intel
Group: None
>Status: Closed
>Resolution: Invalid
Priority: 7
Private: No
Submitted By: Bhasker C V (bcv)
Assigned to: Nobody/Anonymous (nobody)
Summary: guest clock runs 2 times faster than the host clock

Initial Comment:
Host: 
 processor: Intel(R) Core(TM)2 Quad CPU           @ 2.66GHz
 OS       : debian squeeze
 Qemu     : qemu-kvm-88 
 Kernel   : Linux bcv 2.6.35.3 #1 SMP PREEMPT Mon Aug 23 17:55:19 BST 2010 x86_64 GNU/Linux
Guest:
 processsor: Intel core2duo smp 2
 OS        : SUSE linux enterprise 10 64bit
 

so running a 64 bit OS on 64 bit debian host.

The clock runs double fast than the host OS. This results in guest gaining time and going ahead the host 


----------------------------------------------------------------------

>Comment By: Jes Sorensen (jessorensen)
Date: 2010-08-30 12:03

Message:
kvm-88 is over a year old as was also reported by mjtsf.

Please check against a recent kvm release and open a new bug in
https://bugs.launchpad.net/qemu/

Closing as invalid. It's pointless reporting bugs against such old
releases.

Jes


----------------------------------------------------------------------

Comment By: Bhasker C V (bcv)
Date: 2010-08-29 22:55

Message:
A quick workaround for this solution would be to use the following in the
kernel command line along with using -clock dynticks

append this
notsc divider=10 clock=pmtmr 
the clock= option may change for various distributions and can be lookedup
from 
http://kb.vmware.com/selfservice/microsites/search.do?language=en_US&cmd=displayKC&externalId=1006427
Albeit this fairly makes the clock not to go haywire and keep counting
fast, there is still a small gain which can be well managed using ntp or
periodic rdate updates


----------------------------------------------------------------------

Comment By: Michael Tokarev (mjtsf)
Date: 2010-08-29 20:45

Message:
Come on, kvm-88 is ancient unsupported development snapshot. It isnt' even
an alpha version.

Please try current code (at least qemu-kvm-0.12.4 as available on
backports.org) and file a new bugreport if the problem is still here.

And if the issue _is_ present in real version, please file a bug in
launchpad.net against qemu project, not here.  This bugtracker is dead.

Thanks.

----------------------------------------------------------------------

Comment By: Bhasker C V (bcv)
Date: 2010-08-29 19:25

Message:
Running a 32 bit OS instead of the 64 bit OS maintains time properly. It is
just that running the 64 bit OS inside this qemu-kvm makes the guest to
gain time.

----------------------------------------------------------------------

You can respond by visiting: 
https://sourceforge.net/tracker/?func=detail&atid=893831&aid=3055533&group_id=180599

^ permalink raw reply	[flat|nested] 6+ messages in thread

* [ kvm-Bugs-3055533 ] guest clock runs 2 times faster than the host clock
@ 2010-08-29 20:55 SourceForge.net
  0 siblings, 0 replies; 6+ messages in thread
From: SourceForge.net @ 2010-08-29 20:55 UTC (permalink / raw)
  To: noreply

Bugs item #3055533, was opened at 2010-08-29 18:07
Message generated for change (Comment added) made by bcv
You can respond by visiting: 
https://sourceforge.net/tracker/?func=detail&atid=893831&aid=3055533&group_id=180599

Please note that this message will contain a full copy of the comment thread,
including the initial issue submission, for this request,
not just the latest update.
Category: intel
Group: None
Status: Open
Resolution: None
Priority: 7
Private: No
Submitted By: Bhasker C V (bcv)
Assigned to: Nobody/Anonymous (nobody)
Summary: guest clock runs 2 times faster than the host clock

Initial Comment:
Host: 
 processor: Intel(R) Core(TM)2 Quad CPU           @ 2.66GHz
 OS       : debian squeeze
 Qemu     : qemu-kvm-88 
 Kernel   : Linux bcv 2.6.35.3 #1 SMP PREEMPT Mon Aug 23 17:55:19 BST 2010 x86_64 GNU/Linux
Guest:
 processsor: Intel core2duo smp 2
 OS        : SUSE linux enterprise 10 64bit
 

so running a 64 bit OS on 64 bit debian host.

The clock runs double fast than the host OS. This results in guest gaining time and going ahead the host 


----------------------------------------------------------------------

>Comment By: Bhasker C V (bcv)
Date: 2010-08-29 21:55

Message:
A quick workaround for this solution would be to use the following in the
kernel command line along with using -clock dynticks

append this
notsc divider=10 clock=pmtmr 
the clock= option may change for various distributions and can be lookedup
from 
http://kb.vmware.com/selfservice/microsites/search.do?language=en_US&cmd=displayKC&externalId=1006427
Albeit this fairly makes the clock not to go haywire and keep counting
fast, there is still a small gain which can be well managed using ntp or
periodic rdate updates


----------------------------------------------------------------------

Comment By: Michael Tokarev (mjtsf)
Date: 2010-08-29 19:45

Message:
Come on, kvm-88 is ancient unsupported development snapshot. It isnt' even
an alpha version.

Please try current code (at least qemu-kvm-0.12.4 as available on
backports.org) and file a new bugreport if the problem is still here.

And if the issue _is_ present in real version, please file a bug in
launchpad.net against qemu project, not here.  This bugtracker is dead.

Thanks.

----------------------------------------------------------------------

Comment By: Bhasker C V (bcv)
Date: 2010-08-29 18:25

Message:
Running a 32 bit OS instead of the 64 bit OS maintains time properly. It is
just that running the 64 bit OS inside this qemu-kvm makes the guest to
gain time.

----------------------------------------------------------------------

You can respond by visiting: 
https://sourceforge.net/tracker/?func=detail&atid=893831&aid=3055533&group_id=180599

^ permalink raw reply	[flat|nested] 6+ messages in thread

* [ kvm-Bugs-3055533 ] guest clock runs 2 times faster than the host clock
@ 2010-08-29 17:25 SourceForge.net
  0 siblings, 0 replies; 6+ messages in thread
From: SourceForge.net @ 2010-08-29 17:25 UTC (permalink / raw)
  To: noreply

Bugs item #3055533, was opened at 2010-08-29 22:37
Message generated for change (Comment added) made by bcv
You can respond by visiting: 
https://sourceforge.net/tracker/?func=detail&atid=893831&aid=3055533&group_id=180599

Please note that this message will contain a full copy of the comment thread,
including the initial issue submission, for this request,
not just the latest update.
Category: intel
Group: None
Status: Open
Resolution: None
Priority: 7
Private: No
Submitted By: Bhasker C V (bcv)
Assigned to: Nobody/Anonymous (nobody)
Summary: guest clock runs 2 times faster than the host clock

Initial Comment:
Host: 
 processor: Intel(R) Core(TM)2 Quad CPU           @ 2.66GHz
 OS       : debian squeeze
 Qemu     : qemu-kvm-88 
 Kernel   : Linux bcv 2.6.35.3 #1 SMP PREEMPT Mon Aug 23 17:55:19 BST 2010 x86_64 GNU/Linux
Guest:
 processsor: Intel core2duo smp 2
 OS        : SUSE linux enterprise 10 64bit
 

so running a 64 bit OS on 64 bit debian host.

The clock runs double fast than the host OS. This results in guest gaining time and going ahead the host 


----------------------------------------------------------------------

>Comment By: Bhasker C V (bcv)
Date: 2010-08-29 22:55

Message:
Running a 32 bit OS instead of the 64 bit OS maintains time properly. It is
just that running the 64 bit OS inside this qemu-kvm makes the guest to
gain time.

----------------------------------------------------------------------

You can respond by visiting: 
https://sourceforge.net/tracker/?func=detail&atid=893831&aid=3055533&group_id=180599

^ permalink raw reply	[flat|nested] 6+ messages in thread

* [ kvm-Bugs-3055533 ] guest clock runs 2 times faster than the host clock
@ 2010-08-29 17:08 SourceForge.net
  0 siblings, 0 replies; 6+ messages in thread
From: SourceForge.net @ 2010-08-29 17:08 UTC (permalink / raw)
  To: noreply

Bugs item #3055533, was opened at 2010-08-29 22:37
Message generated for change (Settings changed) made by bcv
You can respond by visiting: 
https://sourceforge.net/tracker/?func=detail&atid=893831&aid=3055533&group_id=180599

Please note that this message will contain a full copy of the comment thread,
including the initial issue submission, for this request,
not just the latest update.
Category: intel
Group: None
Status: Open
Resolution: None
>Priority: 7
Private: No
Submitted By: Bhasker C V (bcv)
Assigned to: Nobody/Anonymous (nobody)
Summary: guest clock runs 2 times faster than the host clock

Initial Comment:
Host: 
 processor: Intel(R) Core(TM)2 Quad CPU           @ 2.66GHz
 OS       : debian squeeze
 Qemu     : qemu-kvm-88 
 Kernel   : Linux bcv 2.6.35.3 #1 SMP PREEMPT Mon Aug 23 17:55:19 BST 2010 x86_64 GNU/Linux
Guest:
 processsor: Intel core2duo smp 2
 OS        : SUSE linux enterprise 10 64bit
 

so running a 64 bit OS on 64 bit debian host.

The clock runs double fast than the host OS. This results in guest gaining time and going ahead the host 


----------------------------------------------------------------------

You can respond by visiting: 
https://sourceforge.net/tracker/?func=detail&atid=893831&aid=3055533&group_id=180599

^ permalink raw reply	[flat|nested] 6+ messages in thread

* [ kvm-Bugs-3055533 ] guest clock runs 2 times faster than the host clock
@ 2010-08-29 17:07 SourceForge.net
  0 siblings, 0 replies; 6+ messages in thread
From: SourceForge.net @ 2010-08-29 17:07 UTC (permalink / raw)
  To: noreply

Bugs item #3055533, was opened at 2010-08-29 22:37
Message generated for change (Tracker Item Submitted) made by bcv
You can respond by visiting: 
https://sourceforge.net/tracker/?func=detail&atid=893831&aid=3055533&group_id=180599

Please note that this message will contain a full copy of the comment thread,
including the initial issue submission, for this request,
not just the latest update.
Category: intel
Group: None
Status: Open
Resolution: None
Priority: 5
Private: No
Submitted By: Bhasker C V (bcv)
Assigned to: Nobody/Anonymous (nobody)
Summary: guest clock runs 2 times faster than the host clock

Initial Comment:
Host: 
 processor: Intel(R) Core(TM)2 Quad CPU           @ 2.66GHz
 OS       : debian squeeze
 Qemu     : qemu-kvm-88 
 Kernel   : Linux bcv 2.6.35.3 #1 SMP PREEMPT Mon Aug 23 17:55:19 BST 2010 x86_64 GNU/Linux
Guest:
 processsor: Intel core2duo smp 2
 OS        : SUSE linux enterprise 10 64bit
 

so running a 64 bit OS on 64 bit debian host.

The clock runs double fast than the host OS. This results in guest gaining time and going ahead the host 


----------------------------------------------------------------------

You can respond by visiting: 
https://sourceforge.net/tracker/?func=detail&atid=893831&aid=3055533&group_id=180599

^ permalink raw reply	[flat|nested] 6+ messages in thread

end of thread, other threads:[~2010-08-30 10:03 UTC | newest]

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