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[Qemu-devel] [Bug 599958] Re: Timedrift problems with Win7: hpet missing
From: |
Launchpad Bug Tracker |
Subject: |
[Qemu-devel] [Bug 599958] Re: Timedrift problems with Win7: hpet missing time drift fixups |
Date: |
Wed, 24 Jul 2019 04:17:37 -0000 |
[Expired for QEMU because there has been no activity for 60 days.]
** Changed in: qemu
Status: Incomplete => Expired
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https://bugs.launchpad.net/bugs/599958
Title:
Timedrift problems with Win7: hpet missing time drift fixups
Status in QEMU:
Expired
Bug description:
We've been finding timedrift issues witth Win7 under qemu-kvm on our
daily testing
kvm.qemu-kvm-git.smp2.Win7.64.timedrift.with_load FAIL 1 Time
drift too large after rest period: 38.63%
kvm.qemu-kvm-git.smp2.Win7.64.timedrift.with_reboot FAIL 1 Time
drift too large at iteration 1: 17.77 seconds
kvm.qemu-kvm-git.smp2.Win7.64.timedrift.with_migration FAIL 1
Time drift too large at iteration 2: 3.08 seconds
Steps to reproduce:
timedrift.with_load
1) Log into a guest.
2) Take a time reading from the guest and host.
3) Run load on the guest and host.
4) Take a second time reading.
5) Stop the load and rest for a while.
6) Take a third time reading.
7) If the drift immediately after load is higher than a user-
specified value (in %), fail.
If the drift after the rest period is higher than a user-specified value,
fail.
timedrift.with_migration
1) Log into a guest.
2) Take a time reading from the guest and host.
3) Migrate the guest.
4) Take a second time reading.
5) If the drift (in seconds) is higher than a user specified value, fail.
timedrift.with_reboot
1) Log into a guest.
2) Take a time reading from the guest and host.
3) Reboot the guest.
4) Take a second time reading.
5) If the drift (in seconds) is higher than a user specified value, fail.
This bug is to register those issues and keep an eye on them.
Attached, some logs from the autotest tests executed on the guest
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