This bug was fixed in the package linux - 2.6.38-13.52
---
linux (2.6.38-13.52) natty-proposed; urgency=low
[Herton R. Krzesinski]
* Release Tracking Bug
- LP: #887379
[ Konrad Rzeszutek Wilk ]
* SAUCE: x86/paravirt: Partially revert remove lazy mode in interrupts
** Changed in: linux (Ubuntu Natty)
Status: Confirmed = Fix Committed
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Title:
32bit rhel and centos 5.(5|6) hangs on
@nutznboltz: the natty kernel with the fix readded is available in
-proposed now (2.6.38-13.52).
Please test the kernel from -proposed and update this bug with the
results. If the problem is solved, change the tag 'verification-needed-
natty' to 'verification-done-natty'.
If verification is not
How long does this take to show up?
$ curl http://archive.ubuntu.com/ubuntu/pool/main/l/linux/ 2 /dev/null | grep
38-13.52 | egrep -v 'diff|dsc' | sed 's/^.*deb//' | sed 's;/a.*$;;'
linux-doc_2.6.38-13.52_all.deb
linux-libc-dev_2.6.38-13.52_amd64.deb
linux-libc-dev_2.6.38-13.52_i386.deb
I also checked in universe
$ curl http://archive.ubuntu.com/ubuntu/pool/universe/l/linux/ 2
/dev/null | grep 38-12.51 | egrep -v 'diff|dsc' | sed 's/^.*deb//' |
sed 's;/a.*$;;' | grep image.*generic
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Excerpts from nutznboltz's message of Fri Nov 11 16:53:52 UTC 2011:
How long does this take to show up?
$ curl http://archive.ubuntu.com/ubuntu/pool/main/l/linux/ 2 /dev/null |
grep 38-13.52 | egrep -v 'diff|dsc' | sed 's/^.*deb//' | sed 's;/a.*$;;'
linux-doc_2.6.38-13.52_all.deb
@Clint
deb http://archive.ubuntu.com/ubuntu/ natty-proposed main restricted
universe multiverse
$ apt-cache search 6.38-13
linux-backports-modules-cw-2.6.39-2.6.38-13-generic - compat-wireless Linux
modules for version 2.6.38 on x86/x86_64
linux-backports-modules-cw-2.6.39-2.6.38-13-server -
I found a copy on 91.189.92.169
So I added to /etc/hosts this line:
91.189.92.169 archive.ubuntu.com
Now I can install it.
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$ uname -srvi
Linux 2.6.38-13-generic #52-Ubuntu SMP Tue Nov 8 16:53:51 UTC 2011 x86_64
$ sudo virsh dumpxml opsi-1720 | grep cpu
vcpu2/vcpu
$ sudo virsh start opsi-1720
$ ssh root@opsi-1720
root@opsi-1720's password:
Last login: Fri Nov 11 17:30:14 2011
[root@opsi-1720 ~]# lsb_release -a
LSB
** Changed in: linux (Ubuntu Natty)
Status: Confirmed = Fix Committed
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Title:
32bit rhel and centos 5.(5|6) hangs on boot on natty
To
@nutznboltz: the natty kernel with the fix readded is available in
-proposed now (2.6.38-13.52).
Please test the kernel from -proposed and update this bug with the
results. If the problem is solved, change the tag 'verification-needed-
natty' to 'verification-done-natty'.
If verification is not
How long does this take to show up?
$ curl http://archive.ubuntu.com/ubuntu/pool/main/l/linux/ 2 /dev/null | grep
38-13.52 | egrep -v 'diff|dsc' | sed 's/^.*deb//' | sed 's;/a.*$;;'
linux-doc_2.6.38-13.52_all.deb
linux-libc-dev_2.6.38-13.52_amd64.deb
linux-libc-dev_2.6.38-13.52_i386.deb
I also checked in universe
$ curl http://archive.ubuntu.com/ubuntu/pool/universe/l/linux/ 2
/dev/null | grep 38-12.51 | egrep -v 'diff|dsc' | sed 's/^.*deb//' |
sed 's;/a.*$;;' | grep image.*generic
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Excerpts from nutznboltz's message of Fri Nov 11 16:53:52 UTC 2011:
How long does this take to show up?
$ curl http://archive.ubuntu.com/ubuntu/pool/main/l/linux/ 2 /dev/null |
grep 38-13.52 | egrep -v 'diff|dsc' | sed 's/^.*deb//' | sed 's;/a.*$;;'
linux-doc_2.6.38-13.52_all.deb
@Clint
deb http://archive.ubuntu.com/ubuntu/ natty-proposed main restricted
universe multiverse
$ apt-cache search 6.38-13
linux-backports-modules-cw-2.6.39-2.6.38-13-generic - compat-wireless Linux
modules for version 2.6.38 on x86/x86_64
linux-backports-modules-cw-2.6.39-2.6.38-13-server -
I found a copy on 91.189.92.169
So I added to /etc/hosts this line:
91.189.92.169 archive.ubuntu.com
Now I can install it.
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Title:
32bit rhel
$ uname -srvi
Linux 2.6.38-13-generic #52-Ubuntu SMP Tue Nov 8 16:53:51 UTC 2011 x86_64
$ sudo virsh dumpxml opsi-1720 | grep cpu
vcpu2/vcpu
$ sudo virsh start opsi-1720
$ ssh root@opsi-1720
root@opsi-1720's password:
Last login: Fri Nov 11 17:30:14 2011
[root@opsi-1720 ~]# lsb_release -a
LSB
** Tags added: patch testcase
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Title:
32bit rhel and centos 5.(5|6) hangs on boot on natty
To manage notifications about this
** Tags added: patch testcase
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Title:
32bit rhel and centos 5.(5|6) hangs on boot on natty
To manage notifications about this bug go to:
The servers which had the large outage incident on Wed Oct 26, 2011 described in
https://bugs.launchpad.net/ubuntu/+source/libvirt/+bug/882579/comments/5
were rebooted last night Wed Nov 2, 2011 off of the patched backport kernel in
Adding link to pending SRU page for convenience
http://people.canonical.com/~ubuntu-archive/pending-sru.html
** Changed in: linux (Ubuntu Natty)
Status: Incomplete = Confirmed
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The servers which had the large outage incident on Wed Oct 26, 2011 described in
https://bugs.launchpad.net/ubuntu/+source/libvirt/+bug/882579/comments/5
were rebooted last night Wed Nov 2, 2011 off of the patched backport kernel in
Adding link to pending SRU page for convenience
http://people.canonical.com/~ubuntu-archive/pending-sru.html
** Changed in: linux (Ubuntu Natty)
Status: Incomplete = Confirmed
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I could not reproduce booting the guest by setting processor affinity to
a single host CPU.
1. Start 32-bit 2-CPU RHEL-5 compatible VM guest and pause on grub screen
2. locked it to host CPU #1
$ sudo taskset -p 0x0001 3127
pid 3127's current affinity mask: 3f
pid 3127's new affinity mask: 1
32-bit 2-CPU RHEL-5 compatible VM guest boots successfully on Natty with the
patch which I installed into a kernel in this PPA:
https://launchpad.net/~nutznboltz/+archive/kvm-clock-fix-for-2.6.38-on-lucid
$ uname -srvm
Linux 2.6.38-12-generic #1~ppa2~natty1-Ubuntu SMP Tue Nov 1 22:41:06 UTC 2011
Opened LP: #885170 to resubmit SRU request.
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Title:
32bit rhel and centos 5.(5|6) hangs on boot on natty
To manage
I could not reproduce booting the guest by setting processor affinity to
a single host CPU.
1. Start 32-bit 2-CPU RHEL-5 compatible VM guest and pause on grub screen
2. locked it to host CPU #1
$ sudo taskset -p 0x0001 3127
pid 3127's current affinity mask: 3f
pid 3127's new affinity mask: 1
32-bit 2-CPU RHEL-5 compatible VM guest boots successfully on Natty with the
patch which I installed into a kernel in this PPA:
https://launchpad.net/~nutznboltz/+archive/kvm-clock-fix-for-2.6.38-on-lucid
$ uname -srvm
Linux 2.6.38-12-generic #1~ppa2~natty1-Ubuntu SMP Tue Nov 1 22:41:06 UTC 2011
Opened LP: #885170 to resubmit SRU request.
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Title:
32bit rhel and centos 5.(5|6) hangs on boot on natty
To manage notifications about this bug
The same VM host describe in comment #38 is now running
2.6.38-12.51.1~ppa1~lucid1 and the 32-bit RHEL-compatible VM guest does
not hang while using 2 CPUs anymore.
The VM host is also running two Ubuntu 10.04 and one Ubuntu 11.04 VM
guests OK as well.
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On Wed Nov 2, 2011 the two VM hosts described in
https://bugs.launchpad.net/ubuntu/+source/libvirt/+bug/882579/comments/5
are going to be rebooted with linux 2.6.38-12.51.1~ppa1~lucid1
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Since I promised to test on Natty too:
VM host details:
AMD Phenom(tm) II X6 1100T Processor
$ lsb_release -sd
Ubuntu 11.04
$ uname -srvm
Linux 2.6.38-12-generic #51-Ubuntu SMP Wed Sep 28 14:27:32 UTC 2011 x86_64
$ dpkg -l | egrep 'qemu|libvirt|bios'
ii libvirt-bin 0.8.8-1ubuntu6.5
linux_2.6.38-12.51.1~ppa1~natty1 (2.6.38-12 for Natty plus the patch this
ticket is dealing with) has been uploaded to:
https://launchpad.net/~nutznboltz/+archive/kvm-clock-fix-for-2.6.38-on-lucid
When it compiles I'll repeat my test described in Comment #41 with the
patch.
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In comment #2
https://bugs.launchpad.net/ubuntu/+source/qemu-kvm/+bug/795717/comments/2
gdahlman's observation:
{{ As an update I can boot when the guest is restricted to a single cpu ... }}
I think means that on the VM host if /usr/bin/kvm is forced to run on
only one CPU via setting its
The same VM host describe in comment #38 is now running
2.6.38-12.51.1~ppa1~lucid1 and the 32-bit RHEL-compatible VM guest does
not hang while using 2 CPUs anymore.
The VM host is also running two Ubuntu 10.04 and one Ubuntu 11.04 VM
guests OK as well.
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On Wed Nov 2, 2011 the two VM hosts described in
https://bugs.launchpad.net/ubuntu/+source/libvirt/+bug/882579/comments/5
are going to be rebooted with linux 2.6.38-12.51.1~ppa1~lucid1
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Since I promised to test on Natty too:
VM host details:
AMD Phenom(tm) II X6 1100T Processor
$ lsb_release -sd
Ubuntu 11.04
$ uname -srvm
Linux 2.6.38-12-generic #51-Ubuntu SMP Wed Sep 28 14:27:32 UTC 2011 x86_64
$ dpkg -l | egrep 'qemu|libvirt|bios'
ii libvirt-bin 0.8.8-1ubuntu6.5
linux_2.6.38-12.51.1~ppa1~natty1 (2.6.38-12 for Natty plus the patch this
ticket is dealing with) has been uploaded to:
https://launchpad.net/~nutznboltz/+archive/kvm-clock-fix-for-2.6.38-on-lucid
When it compiles I'll repeat my test described in Comment #41 with the
patch.
--
You received
In comment #2
https://bugs.launchpad.net/ubuntu/+source/qemu-kvm/+bug/795717/comments/2
gdahlman's observation:
{{ As an update I can boot when the guest is restricted to a single cpu ... }}
I think means that on the VM host if /usr/bin/kvm is forced to run on
only one CPU via setting its
If you loock at comment #32 and comment #27, the patch got reverted in
natty because there was no one verifying the change. It also gives a
link that should tell how to get it reconsidered to go into natty. If
that is done, it will be in the lts backport automatically.
--
You received this bug
This patch has yet to be put in lucid-proposed 2.6.38 backport package:
linux-lts-backport-natty
I found this out while working on LP: #882579
I added the missing patch to linux-lts-backport-natty-2.6.38-12.51~lucid1
and uploaded the resulting linux-lts-backport-natty-2.6.38-12.51.1~ppa1~lucid1
@Stefan I'm in a good position to test as soon as the PPA completes
building. I've had all sorts of issues relating to this and a number of
systems to try it on.
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I build a 32-bit RHEL 5 compatible Qemu/KVM guest, really Scientific
Linux 5.7. The guest was built from SL.57.090911.DVD.i386.disc1.iso
plus today's updates.
The guest runs fine with 1 CPU defined and hangs trying to boot with 2
CPUs defined so I can reproduce this 100% with the following VM
If you loock at comment #32 and comment #27, the patch got reverted in
natty because there was no one verifying the change. It also gives a
link that should tell how to get it reconsidered to go into natty. If
that is done, it will be in the lts backport automatically.
--
You received this bug
This patch has yet to be put in lucid-proposed 2.6.38 backport package:
linux-lts-backport-natty
I found this out while working on LP: #882579
I added the missing patch to linux-lts-backport-natty-2.6.38-12.51~lucid1
and uploaded the resulting linux-lts-backport-natty-2.6.38-12.51.1~ppa1~lucid1
@Stefan I'm in a good position to test as soon as the PPA completes
building. I've had all sorts of issues relating to this and a number of
systems to try it on.
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I build a 32-bit RHEL 5 compatible Qemu/KVM guest, really Scientific
Linux 5.7. The guest was built from SL.57.090911.DVD.i386.disc1.iso
plus today's updates.
The guest runs fine with 1 CPU defined and hangs trying to boot with 2
CPUs defined so I can reproduce this 100% with the following VM
Sorry after installing Serge's test kernel I did not have the time to
test the proposed version but his did fix the issue.
Unfortunately it appears that the Ubuntu kernel in 11.04 also has this
issue.
if (tsc_delta 0)
mark_tsc_unstable(KVM discovered
Please ignore #33... apparently I forgot how to run uname
The host had reverted to an older kernel on the upgrade to 11.10
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Sorry after installing Serge's test kernel I did not have the time to
test the proposed version but his did fix the issue.
Unfortunately it appears that the Ubuntu kernel in 11.04 also has this
issue.
if (tsc_delta 0)
mark_tsc_unstable(KVM discovered
Please ignore #33... apparently I forgot how to run uname
The host had reverted to an older kernel on the upgrade to 11.10
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Title:
32bit rhel
@Thilo, it seems that the discussion was about whether there should be a
better fix but there does not seem to be any confirmation about any real
problems found with either version. As of today only the patch as it was
queued has made it upstream. So this would be the change that would go
into
@Thilo, it seems that the discussion was about whether there should be a
better fix but there does not seem to be any confirmation about any real
problems found with either version. As of today only the patch as it was
queued has made it upstream. So this would be the change that would go
into
I'm a bit confused, maybe someone can clarify this.
At https://lkml.org/lkml/2011/3/25/54 it is mentioned that there still
exists a underlying bug with kvmclock. I assume that this is not fixed
in 2.6.38-11.50. Is it fixed in newer kernels? I assume that older
kernels (like the one in lucid) are
@Stefan,
given comment #27, shouldn't the status of this bug for natty be
'incomplete'?
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Title:
32bit rhel and centos 5.(5|6)
I'm a bit confused, maybe someone can clarify this.
At https://lkml.org/lkml/2011/3/25/54 it is mentioned that there still
exists a underlying bug with kvmclock. I assume that this is not fixed
in 2.6.38-11.50. Is it fixed in newer kernels? I assume that older
kernels (like the one in lucid) are
@Stefan,
given comment #27, shouldn't the status of this bug for natty be
'incomplete'?
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Title:
32bit rhel and centos 5.(5|6) hangs on boot on
This bug was fixed in the package linux - 2.6.38-11.50
---
linux (2.6.38-11.50) natty-proposed; urgency=low
[Herton R. Krzesinski]
* Release Tracking Bug
- LP: #848246
[ Upstream Kernel Changes ]
* Revert eCryptfs: Handle failed metadata read in lookup
* Revert KVM:
Note that the automatic statement of released is misleading. This
patch has been reverted as it was not verified and the kernel without
the change is now released.
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This bug was fixed in the package linux - 2.6.38-11.50
---
linux (2.6.38-11.50) natty-proposed; urgency=low
[Herton R. Krzesinski]
* Release Tracking Bug
- LP: #848246
[ Upstream Kernel Changes ]
* Revert eCryptfs: Handle failed metadata read in lookup
* Revert KVM:
Note that the automatic statement of released is misleading. This
patch has been reverted as it was not verified and the kernel without
the change is now released.
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Verification that this bug is fixed has not been completed by the deadline for
the current
stable kernel release cycle. The change was reverted and this bug is being set
to
incomplete.
In order to have this fix considered for reapplication to the kernel, please
follow the
process documented
Verification that this bug is fixed has not been completed by the deadline for
the current
stable kernel release cycle. The change was reverted and this bug is being set
to
incomplete.
In order to have this fix considered for reapplication to the kernel, please
follow the
process documented
Greg, could you check with the proposed kernel, too? Process requires it
and I don't have the setup ready. Would also help to ensure that the new
kernel brings no other problem. :) Thanks.
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** Branch linked: lp:ubuntu/lucid-proposed/linux-lts-backport-natty
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Title:
32bit rhel and centos 5.(5|6) hangs on boot on
Greg, could you check with the proposed kernel, too? Process requires it
and I don't have the setup ready. Would also help to ensure that the new
kernel brings no other problem. :) Thanks.
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** Branch linked: lp:ubuntu/lucid-proposed/linux-lts-backport-natty
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Title:
32bit rhel and centos 5.(5|6) hangs on boot on natty
To manage
This bug is awaiting verification that the kernel in -proposed solves
the problem. Please test the kernel and update this bug with the
results. If the problem is solved, change the tag 'verification-needed-
natty' to 'verification-done-natty'.
If verification is not done by one week from today,
This bug is awaiting verification that the kernel in -proposed solves
the problem. Please test the kernel and update this bug with the
results. If the problem is solved, change the tag 'verification-needed-
natty' to 'verification-done-natty'.
If verification is not done by one week from today,
** Changed in: linux (Ubuntu Natty)
Status: In Progress = Fix Committed
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Title:
32bit rhel and centos 5.(5|6) hangs on
** Changed in: linux (Ubuntu Natty)
Status: In Progress = Fix Committed
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Title:
32bit rhel and centos 5.(5|6) hangs on boot on natty
To
Thanks very much for finding the fix!
Marked the bug as affecting kernel. This patch is not yet in the
oneiric kernel.
** Also affects: linux (Ubuntu)
Importance: Undecided
Status: New
** Changed in: qemu-kvm (Ubuntu)
Status: Incomplete = Invalid
** Changed in: linux (Ubuntu)
As far as I can see the patch
commit 1aa8ceef0312a6aae7dd863a120a55f1637b361d
Author: Nikola Ciprich extmaill...@linuxbox.cz
Date: Wed Mar 9 23:36:51 2011 +0100
KVM: fix kvmclock regression due to missing clock update
commit 387b9f97750444728962b236987fbe8ee8cc4f8c moved
For Oneiric, this should be fixed already.
** Also affects: linux (Ubuntu Natty)
Importance: Undecided
Status: New
** Also affects: qemu-kvm (Ubuntu Natty)
Importance: Undecided
Status: New
** Changed in: qemu-kvm (Ubuntu Natty)
Status: New = Invalid
** Changed in:
To proceed with getting this into Natty I created test kernels at
http://people.canonical.com/~smb/lp795717/
If somebody can confirm that using those works, then we can proceed with
getting the fix SRUed.
** Changed in: linux (Ubuntu Natty)
Importance: Undecided = Medium
** Changed in:
Thanks Stefan,
I have confirmed that the following kernels work.
linux-image-2.6.38-11-server_2.6.38-11.48+lp795717v1_amd64.deb
linux-image-2.6.38-11-generic_2.6.38-11.48+lp795717v1_amd64.deb
They were installed on three machines
Dell PowerEdge R710 with 96GB ram and 2 * Xeon X5680
Dell
** Description changed:
+ SRU Justification:
+
+ Impact: An upstream change in the kvm code in 2.6.37 causes regressions
+ running 32bit guest under 11.04 (Natty) KVM.
+
+ Fix: Cherry-picking a single upstream patch (which went into 2.6.39)
+ fixes the issue.
+
+ Testcase: Booting 32bit rhel
Thanks Greg. I have gone ahead and submitted the patch for SRU.
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Title:
32bit rhel and centos 5.(5|6) hangs on boot on natty
Thanks very much for finding the fix!
Marked the bug as affecting kernel. This patch is not yet in the
oneiric kernel.
** Also affects: linux (Ubuntu)
Importance: Undecided
Status: New
** Changed in: qemu-kvm (Ubuntu)
Status: Incomplete = Invalid
** Changed in: linux (Ubuntu)
As far as I can see the patch
commit 1aa8ceef0312a6aae7dd863a120a55f1637b361d
Author: Nikola Ciprich extmaill...@linuxbox.cz
Date: Wed Mar 9 23:36:51 2011 +0100
KVM: fix kvmclock regression due to missing clock update
commit 387b9f97750444728962b236987fbe8ee8cc4f8c moved
For Oneiric, this should be fixed already.
** Also affects: linux (Ubuntu Natty)
Importance: Undecided
Status: New
** Also affects: qemu-kvm (Ubuntu Natty)
Importance: Undecided
Status: New
** Changed in: qemu-kvm (Ubuntu Natty)
Status: New = Invalid
** Changed in:
To proceed with getting this into Natty I created test kernels at
http://people.canonical.com/~smb/lp795717/
If somebody can confirm that using those works, then we can proceed with
getting the fix SRUed.
** Changed in: linux (Ubuntu Natty)
Importance: Undecided = Medium
** Changed in:
Thanks Stefan,
I have confirmed that the following kernels work.
linux-image-2.6.38-11-server_2.6.38-11.48+lp795717v1_amd64.deb
linux-image-2.6.38-11-generic_2.6.38-11.48+lp795717v1_amd64.deb
They were installed on three machines
Dell PowerEdge R710 with 96GB ram and 2 * Xeon X5680
Dell
** Description changed:
+ SRU Justification:
+
+ Impact: An upstream change in the kvm code in 2.6.37 causes regressions
+ running 32bit guest under 11.04 (Natty) KVM.
+
+ Fix: Cherry-picking a single upstream patch (which went into 2.6.39)
+ fixes the issue.
+
+ Testcase: Booting 32bit rhel
Thanks Greg. I have gone ahead and submitted the patch for SRU.
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https://bugs.launchpad.net/bugs/795717
Title:
32bit rhel and centos 5.(5|6) hangs on boot on natty
To manage
I did set clocksource=acpi_pm and it will boot,
The regression is in the Ubuntu kernel, it works fine on fc12 and 10.10
but 11.04 will not let them boot
It would seem really odd that the kvm-clock paravirt clock source in the
current kernel would be the prime suspect IMHO.
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You received this
I think I found the kernel bug that causes this, but I can not find a
good link that is not spam mail list aggregation site.
The subject is KVM: fix kvmclock regression due to missing clock
update and it appears there is a fix in 2.6.39
I will try to find hardware to test this on.
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You
I have verified that by downloading and upgrading to the following
kernel the issue is resolved, the issue still exists with 2.6.38-10
http://kernel.ubuntu.com/~kernel-ppa/mainline/v2.6.39-rc4-natty/
I successfully booted from CD on RHEL 5.4 and Centos 5.5 on CD and
installed with no issue with
Here is the fix for the current natty kernel source, it appears to be a
typo with a closing bracket one line too high.
** Patch added: Patch to fix issue with 32 bit KVM hosts
https://bugs.launchpad.net/ubuntu/+source/qemu-kvm/+bug/795717/+attachment/2265304/+files/x86.c.diff
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You
I did set clocksource=acpi_pm and it will boot,
The regression is in the Ubuntu kernel, it works fine on fc12 and 10.10
but 11.04 will not let them boot
It would seem really odd that the kvm-clock paravirt clock source in the
current kernel would be the prime suspect IMHO.
--
You received this
I think I found the kernel bug that causes this, but I can not find a
good link that is not spam mail list aggregation site.
The subject is KVM: fix kvmclock regression due to missing clock
update and it appears there is a fix in 2.6.39
I will try to find hardware to test this on.
--
You
I have verified that by downloading and upgrading to the following
kernel the issue is resolved, the issue still exists with 2.6.38-10
http://kernel.ubuntu.com/~kernel-ppa/mainline/v2.6.39-rc4-natty/
I successfully booted from CD on RHEL 5.4 and Centos 5.5 on CD and
installed with no issue with
Here is the fix for the current natty kernel source, it appears to be a
typo with a closing bracket one line too high.
** Patch added: Patch to fix issue with 32 bit KVM hosts
https://bugs.launchpad.net/ubuntu/+source/qemu-kvm/+bug/795717/+attachment/2265304/+files/x86.c.diff
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You
If I boot from the ISO CentOS-5.5-i386-bin-DVD.iso from the CentOS
FTP, the instance will hang at the same point as booting the instance
from the virtual disk. It is solved by disabling SMP (using just 1 CPU).
This is my KVM commandline:
kvm -daemonize -enable-kvm -smp 8 -smp 8,cores=4 -m 2048
After some testing, I have found a possible cause. The instance with SMP
and CentOS i386 seems to boot fine when using a different clocksource.
You can test this by booting the CD/DVD image with: linux
clocksource=acpi_pm
I have tested the KVM clocksource and the acpi_pm clocksource several
If I boot from the ISO CentOS-5.5-i386-bin-DVD.iso from the CentOS
FTP, the instance will hang at the same point as booting the instance
from the virtual disk. It is solved by disabling SMP (using just 1 CPU).
This is my KVM commandline:
kvm -daemonize -enable-kvm -smp 8 -smp 8,cores=4 -m 2048
After some testing, I have found a possible cause. The instance with SMP
and CentOS i386 seems to boot fine when using a different clocksource.
You can test this by booting the CD/DVD image with: linux
clocksource=acpi_pm
I have tested the KVM clocksource and the acpi_pm clocksource several
I'm having identical behavior - with more than one vcpu, I can't get a
32 bit CentOS system to boot. 64bit seems fine.
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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/795717
Title:
@Adam,
can you reproduce this booting from an iso? If so, can you give us the
exact kvm command line (or libvirt .xml) and the url of the iso image
you used?
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Server Team, which is subscribed to qemu-kvm in Ubuntu.
I'm having identical behavior - with more than one vcpu, I can't get a
32 bit CentOS system to boot. 64bit seems fine.
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You received this bug notification because you are a member of Ubuntu
Bugs, which is subscribed to Ubuntu.
https://bugs.launchpad.net/bugs/795717
Title:
32bit rhel and
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