Hi Serge,
Yes, this kernel does fix the problem! Thank you!! I was able to boot
successfully into the kernel with SMP enabled on the systems that
couldn't do this before.
Let me know if there is additional testing I can do to help you get this
into the Lucid stream.
Thanks again for all of
Great, thanks Brian. I'll forward the patch along with SRU
justification to the kernel team.
** Package changed: qemu-kvm (Ubuntu) = linux (Ubuntu)
--
You received this bug notification because you are a member of Ubuntu
Server Team, which is subscribed to qemu-kvm in ubuntu.
** Summary changed:
- KVM SMP Linux Guests Hang
+ KVM SMP Linux Guests Hang on AMD
--
You received this bug notification because you are a member of Ubuntu
Server Team, which is subscribed to qemu-kvm in ubuntu.
https://bugs.launchpad.net/bugs/714335
Title:
KVM SMP Linux Guests Hang on AMD
** Patch added: kernel patch attempting to recreate the two fixes from
upstream
https://bugs.launchpad.net/ubuntu/+source/qemu-kvm/+bug/714335/+attachment/1877692/+files/0001-kvm-cherrypick-three-kvm-fixes.patch
--
You received this bug notification because you are a member of Ubuntu
Server
@Brian,
I've uploaded a kernel .deb which (hopefully correctly) re-implements
the two fixes which looked most likely to address the bug, at linux-
image-2.6.32-29-generic_2.6.32-29.58ubuntu1_amd64.deb.
I've verified that I can at least install that kernel package on a lucid
intel system and
@Serge,
Thanks for the work on these patches. I did look at the PPA and all I
see are the 2.6.38 packages, and since the 2.6.32-29 kernel isn't in the
mainstream repository yet I am unsure of where to get it. Could you
please point me to where I can get this new kernel with the fixes, so I
can
I believe this bug has been affecting me for some time. Just to be
clear on my situation:
* Host system running Ubuntu 10.04 64-bit
* Guest systems running Ubuntu 10.04 64-bit
* Guests freeze a large percentage of time, though not always.
* They always freeze immediately after the Freeing initrd
Unfortunately those commits do not cleanly cherrypick. I'll try to
rewrite them from scratch, time permitting.
--
You received this bug notification because you are a member of Ubuntu
Server Team, which is subscribed to qemu-kvm in ubuntu.
https://bugs.launchpad.net/bugs/714335
Title:
KVM
Hi Brian,
have you had a chance to test with the new kernel?
** Changed in: qemu-kvm (Ubuntu)
Importance: Undecided = Medium
--
You received this bug notification because you are a member of Ubuntu
Server Team, which is subscribed to qemu-kvm in ubuntu.
Hi Serge,
Yes, that PPA kernel does indeed fix it. I used the PPA kernel in the
guest and it made everything work perfectly. So I'm thinking one of
those fixes you mentioned solves the problem.
Note that I am still using the standard Lucid kernel in the host, but I
don't think that's relevant
same bug here,
https://bugs.launchpad.net/ubuntu/+source/qemu-kvm/+bug/669818
i'had marked it as duplicate
--
You received this bug notification because you are a member of Ubuntu
Server Team, which is subscribed to qemu-kvm in ubuntu.
https://bugs.launchpad.net/bugs/714335
Title:
KVM SMP
i had just try linux-image-2.6.38-3-server from natty and it's booting
fine.
--
You received this bug notification because you are a member of Ubuntu
Server Team, which is subscribed to qemu-kvm in ubuntu.
https://bugs.launchpad.net/bugs/714335
Title:
KVM SMP Linux Guests Hang
--
I wonder whether one of:
1d5f066e0b63271b67eac6d3752f8aa96adcbddb: KVM: x86: Fix a possible
backwards warp of kvmclock
28e4639adf0c9f26f6bb56149b7ab547bf33bb95: KVM: x86: Fix kvmclock bug
could fix it.
--
You received this bug notification because you are a member of Ubuntu
Server
Is it possible in your environment to test with the kernel package from
https://launchpad.net/~kernel-ppa/+archive/ppa?
The package is called linux-lts-backport-natty, and should include all
kvm fixes which are currently upstream. If that does not fix it, then
the two commits cited above in
exactly what to add at this point.
--- On Mon, 2/14/11, Serge Hallyn 714...@bugs.launchpad.net wrote:
From: Serge Hallyn 714...@bugs.launchpad.net
Subject: [Bug 714335] Re: KVM SMP Linux Guests Hang
To: brianknoll2...@yahoo.com
Date: Monday, February 14, 2011, 4:24 PM
Is it possible in your
I think you should be able to just:
sudo add-apt-repository ppa:kernel-ppa/ppa
sudo apt-get install linux-lts-backport-natty
I'm waiting for a lucid vm to build so I can test that to make sure.
--
You received this bug notification because you are a member of Ubuntu
Server Team, which is
It ended up being apt-get install linux-image-server-backport-natty
after doing an update. But you told me what I needed to get it working.
I'll try it out and let you know how it works. Thanks for all the help!
--
You received this bug notification because you are a member of Ubuntu
Server
Hey there... same issue here, on a 6-core Phenom X6 1055T.
I already have 3 VMs running perfectly that I built with vm-builder, but
a fourth just isn't going to work.
vmbuilder kvm ubuntu --suite maverick --flavour virtual --arch amd64 -o
--libvirt qemu:///system --ip 203.4.172.214 --hostname
My configuration might be a little off-topic, but I'm experiencing a
similar problem so I thought I'd leave a comment here anyway.
I'm using qemu 0.13 on a Debian Squeeze host (kernel 2.6.32-5-amd64)
running on a 64-bit Intel Xeon. The guest is a 64-bit Win 2008 R2. When
I run the VM using
I also want to mention that in my last comment, Launchpad turned the
upstream bug number into a hyperlink and referenced an Ubuntu bug of the
same number; that link is not correct, but I can't edit it because I
don't have access. Please follow the first link in post #11 (the one on
SourceForge)
Okay, I have done some more research and testing and I now think the
following upstream KVM bug is the problem:
http://sourceforge.net/tracker/?func=detailaid=2968899group_id=180599atid=893831
Upstream KVM bug 2968899 describes a bug which causes the SMP guest to
lock up when setting the time.
@Brian
awesome, thanks for finding the upstream bug. I'm afraid I won't be
able to do so today, but I'll look in detail tomorrow and try to devise
a fix.
Thanks again.
--
You received this bug notification because you are a member of Ubuntu
Server Team, which is subscribed to qemu-kvm in
Hi, i have exactly the same problem with my quad opteron 6174 hosts. (no
problem on intel ).
my hosts are running proxmox 1.7 distrib (debian lenny with 2.6.32
kernel backported from squeeze).
my ubuntu guests can boot with 2.6.32-24 kernel in smp mode, but since
2.6.32-25 they are hanging at
Someone else has confirmed the same bug so I am changing the status to
Confirmed.
** Changed in: qemu-kvm (Ubuntu)
Status: Incomplete = Confirmed
--
You received this bug notification because you are a member of Ubuntu
Server Team, which is subscribed to qemu-kvm in ubuntu.
I also want to add that I am not 100% clear where the bug is at this
point. My best guess, based on the information we have available in
this ticket, is that there is an upstream bug in the Linux kernel
itself, with regard to the way it handles AMD64 processors when running
under KVM. If that's
@Alexandre:
I'm not quite following your comment. Is all of your experience on a
Debian host? Are you able to boot a Debian guest with 2.6.33 through
2.6.35 kernel?
--
You received this bug notification because you are a member of Ubuntu
Server Team, which is subscribed to qemu-kvm in ubuntu.
Thank you, Serge. Please let me know how I can help. I am wiling to
test packages and help however I can. Thanks again for looking into
this!
--
You received this bug notification because you are a member of Ubuntu
Server Team, which is subscribed to qemu-kvm in ubuntu.
** Tags added: kvm qemu-kvm virtualization
--
You received this bug notification because you are a member of Ubuntu
Server Team, which is subscribed to qemu-kvm in ubuntu.
https://bugs.launchpad.net/bugs/714335
Title:
KVM SMP Linux Guests Hang
--
Ubuntu-server-bugs mailing list
Thank you for your response. I did try the backported Maverick qemu-kvm
packages from the PPA you mentioned, and they did not help the problem
at all. Actually, they seem to have made it much worse. Now, instead
of SMP VMs failing about 50% of the time on my AMD-based machines, it
fails 100% of
Thanks, Brian. I'm going to play a bit more with the latest current
usptream to see what I can reproduce there. If that fixes it, then
I'll provide a backport to lucid for those running into problems with
AMD. In the more likely event that there are still problems, then we
can at least work
--
You received this bug notification because you are a member of Ubuntu
Server Team, which is subscribed to qemu-kvm in ubuntu.
https://bugs.launchpad.net/bugs/714335
Title:
KVM SMP Linux Guests Hang
--
Ubuntu-server-bugs mailing list
Ubuntu-server-bugs@lists.ubuntu.com
Modify settings or
** Description changed:
Binary package hint: qemu-kvm
SMP Linux guests are hanging under KVM. This does not happen always,
but at least 50% of the time or so.
If I start the guests with -smp 1 or just completely omit the -smp
parameter this doesn't happen.
I can also say
I also want to mention that the guests are fully-updated 64-bit Ubuntu
Lucid Server VMs.
--
You received this bug notification because you are a member of Ubuntu
Server Team, which is subscribed to qemu-kvm in ubuntu.
https://bugs.launchpad.net/bugs/714335
Title:
KVM SMP Linux Guests Hang
--
33 matches
Mail list logo
