[Expired for kvm (Ubuntu) because there has been no activity for 60
days.]
** Changed in: kvm (Ubuntu)
Status: Incomplete = Expired
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** Changed in: kvm (Ubuntu)
Assignee: Serge Hallyn (serge-hallyn) = (unassigned)
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https://bugs.launchpad.net/bugs/703811
Title:
kvm guest's cpu usage with virtio
Hm, one thing we've never tried (or at least logged): do you get the
same problem when you use non-virtio network?
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Title:
kvm
** Changed in: kvm (Ubuntu)
Status: Incomplete = In Progress
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Title:
kvm guest's cpu usage with virtio storage driver goes
At this point the only thing Ive not reproduced is software raid. I
simply cannot reproduce this, with or without libvirt, with virtio, with
multiple CPUS and small or large amounts of memory, and with all of the
xml segment above used as the basis for a libvirt VM definition.
** Changed in: kvm
If you would, please provide all details needed to recreate your
software RAID setup, and I'll see if I can reproduce that way.
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I dont have any raids configured at my laptop but had on my production server
and the reason, the reason why i've installed kvm on laptop was that i was
thinking that its raid problem :)
and to reproduce (for me) only i've got to do is fresh ubuntu installation with
kvm.
i dont know, may be its
domain type='kvm'
nametest/name
uuidcefb1457-6927-3fde-d0f1-a94c6c1aecb0/uuid
memory393216/memory
currentMemory393216/currentMemory
vcpu2/vcpu
os
type arch='x86_64' machine='pc-0.12'hvm/type
boot dev='hd'/
/os
features
acpi/
apic/
pae/
/features
clock
Quoting Roman R (703...@bugs.launchpad.net):
Have You tried the virt-manager and do You still need my confs?
Sorry, i was away for a while.
No, sorry, I've not been in an enviroment where I could use the gui.
Please do upload your confs if you can. Otherwise I should be able
to run
Have You tried the virt-manager and do You still need my confs?
Sorry, i was away for a while.
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Title:
kvm guest's cpu usage with
I'm currently trying to reproduce this on a fully uptodate maverick
(no -updates) box. I have 3 lucid vm's up, each of which started as
a server instance and is doing 'apt-get install openoffice.org' to
tax disk (and network). I'm not getting the behavior you are seeing
though.
Each VM has its
I've also tried with 3 VMs each with 30G qcow2 and raw formatted drives,
still with no success in trying to reproduce.
Please give the full kvm command (and, if using libvirt, libvirt.xml
files) for the hosts which cause this problem. Are you using ecryptfs
to back the guest image files?
**
i will provide config files as soon as i get to laptop. meanwhile i'm
usind virt-manager to create kvm guests try it out.
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Title:
well, as problem solving takes so much time, i had to switch to
proxmox, no such problems there. but i still have ubuntu 10.10 with kvm
on my laptop, so if there will be something for testing, let me know i
will be glad to help with this bug.
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Quoting Roman R (703...@bugs.launchpad.net):
anything?
Back-porting the full 0.13.0 to maverick is not going to be allowed.
Finding the patches to cherrypick to fix this is on my to-do list.
The first step will be to re-create it myself reliably. I've not yet
had a chance to do that.
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You
anything?
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Title:
kvm guest's cpu usage with virtio storage driver goes up to 100%
because of flush process
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and same on the laptop. ive removed the edgers repo, added yours,
removed qemu-kvm, isntalled it back and same versions as above are on
the semi-production server.
something is wrong.
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Quoting Roman R (703...@bugs.launchpad.net):
and same on the laptop. ive removed the edgers repo, added yours,
removed qemu-kvm, isntalled it back and same versions as above are on
the semi-production server.
something is wrong.
Right, it's because you have the proposed pocket in your
ok. ill give it a try.
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Title:
kvm guest's cpu usage with virtio storage driver goes up to 100%
because of flush process
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well, didt help much.
still flush process takes up to 46% cpu. i didnt tested much though.. with the
edgers version it was 0-1% all the time.
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The latest upstream version has too many changes to backport to a stable
release, but if we can identify one or a few patches which fix the
problem, we can cherrypick those. In particular, I'm wondering whether
the one below is part of the problem. I'll push a package to a ppa for
you to test
okay, i'll wait to get it tested.
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Title:
kvm guest's cpu usage with virtio storage driver goes up to 100%
because of flush
The package is built at ppa:serge-hallyn/virt. You can browse to
https://launchpad.net/~serge-hallyn/+archive/virt?field.series_filter=maverick
to manually download the qemu-kvm packages, or use add-apt-repository.
Please let us know if it gets any better.
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i'm not able to update my current packages for my 10.10 host using this
ppa repo. apt says no updates avalible.
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Title:
kvm guest's
Quoting Roman R (703...@bugs.launchpad.net):
i'm not able to update my current packages for my 10.10 host using this
ppa repo. apt says no updates avalible.
This might be because you still have the version from the server-edgers
ppa?
You should be able to
apt-get remove qemu-kvm
Thanks for taking the time to report this bug and make Ubuntu better.
I've not sseen this behavior locally using virtio back-ends in Lucid. I
wonder whether the software raid could have something to do with it. Is
there any way you could hook up another disk, without raid, and try to
reproduce?
Thank You for reply.
Actually i was thinking the same about software raid.
I will try kvm on my laptop and see if the problem still exists.
cant try on same server atm, there are some virtual m$ servers, which are in
use.
i will report as soon as i can.
What we could do if it is all about
If the bug is about software RAID, then we'll re-target the Affects line
and try to diagnose. The kernel team may be able to help in that case
as well.
Thanks, looking forward to the results.
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Well, just installed ubuntu 10.10 guest on the 10.10 host on my laptop
and i see the same problem. its fresh install and all i've done just run
apt-get update and apt-get dist-upgrade and the flush-252:0 process
started to use from 12% upto 100% of cpu.
any ideas?
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Quoting Roman R (703...@bugs.launchpad.net):
Well, just installed ubuntu 10.10 guest on the 10.10 host on my laptop
and i see the same problem. its fresh install and all i've done just run
apt-get update and apt-get dist-upgrade and the flush-252:0 process
started to use from 12% upto 100% of
i'll try to test it right a way. Thanks
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https://bugs.launchpad.net/bugs/703811
Title:
kvm guest's cpu usage with virtio storage driver goes up to 100%
because of flush
i still have this problem and cant use any of 10.04 nor 10.10 ubuntu
linux in production. no-one interested?
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Title:
kvm guest's
same history with 10.10 which i'm currently running instead of 10.04.1
LTS
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Title:
kvm guest's cpu usage with virtio storage driver
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