[ kvm-Bugs-2025534 ] gettimeofday goes backward

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Bugs item #2025534, was opened at 2008-07-23 10:45
Message generated for change (Comment added) made by jessorensen
You can respond by visiting: 
https://sourceforge.net/tracker/?func=detail&atid=893831&aid=2025534&group_id=180599

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Category: intel
Group: None
Status: Open
Resolution: None
Priority: 5
Private: No
Submitted By: Rafal Wijata (ravpl)
Assigned to: Nobody/Anonymous (nobody)
Summary: gettimeofday goes backward

Initial Comment:
kvm version: 71
host: rhel51 2.6.18-92.1.6.el5 64bit 16G RAM, 8CPU
guest: rhel51 2.6.18-92.1.6.el5 64bit, 3.5G ram, 2 CPU
guest run as: qemu-system-x86_64 $DEVICES -m $MEM -smp $CPUS -net nic,macaddr=$MAC,model=e1000 -net tap,script=./ifup -nographic -daemonize

in the guest executed two consecutive gettimeofday (boost::ptime in fact), the latter returned time smaller than first
(2008-Jul-22 16:34:15.477000, 2008-Jul-22 16:34:15.470000)

I'm sure no time change was made(like rdate or ntpdate) on neither host or guest. No time-releated options were passed to kernel(host or guest)

Any workaround?

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>Comment By: Jes Sorensen (jessorensen)
Date: 2010-08-19 12:24

Message:
Hi

Trying to catch up on the old bugs.

Do you still experience this problem with a current version of KVM? The
problem should
be resolved in upstream, in particular if you run with kvmclock.

Would you please close this bug if the problem is no longer there?

Thanks,
Jes


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

Comment By: Rafal Wijata (ravpl)
Date: 2008-09-02 15:44

Message:
Logged In: YES 
user_id=996150
Originator: YES

Intel quad-core xeon.

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

Comment By: Joerg Roedel (jroedel)
Date: 2008-09-02 15:36

Message:
Logged In: YES 
user_id=2019182
Originator: NO

Is the host an AMD or an Intel system?

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

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https://sourceforge.net/tracker/?func=detail&atid=893831&aid=2025534&group_id=180599
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