On 2013-05-12 18:52, Kashyap Chamarthy wrote:
[ 217.938034] Uhhuh. NMI received for unknown reason 30 on CPU 0.
[ 217.938034] Do you have a strange power saving mode enabled?
.[ 222.523373] Uhhuh. NMI received for unknown reason 20 on CPU 0.
[ 222.524073] Do you
On Mon, May 13, 2013 at 08:31:33AM +0200, Jan Kiszka wrote:
On 2013-05-12 18:52, Kashyap Chamarthy wrote:
[ 217.938034] Uhhuh. NMI received for unknown reason 30 on CPU 0.
[ 217.938034] Do you have a strange power saving mode enabled?
.[ 222.523373] Uhhuh.
with: v3.9-11789-ge0fd9af] Stack trace when L2 guest
is rebooted.
On Mon, May 13, 2013 at 08:31:33AM +0200, Jan Kiszka wrote:
On 2013-05-12 18:52, Kashyap Chamarthy wrote:
[ 217.938034] Uhhuh. NMI received for unknown reason 30 on CPU
0.
[ 217.938034] Do
...@vger.kernel.org
Subject: Re: [nVMX with: v3.9-11789-ge0fd9af] Stack trace when L2 guest
is rebooted.
On Mon, May 13, 2013 at 08:31:33AM +0200, Jan Kiszka wrote:
On 2013-05-12 18:52, Kashyap Chamarthy wrote:
[ 217.938034] Uhhuh. NMI received for unknown reason 30
Chamarthy; Abel Gordon; Nakajima, Jun;
kvm@vger.kernel.org; kvm-ow...@vger.kernel.org
Subject: Re: [nVMX with: v3.9-11789-ge0fd9af] Stack trace when L2 guest
is rebooted.
On Mon, May 13, 2013 at 08:31:33AM +0200, Jan Kiszka wrote:
On 2013-05-12 18:52, Kashyap Chamarthy wrote
On Fri, May 10, 2013 at 10:40:22AM -0700, Nakajima, Jun wrote:
On Fri, May 10, 2013 at 9:33 AM, Jan Kiszka jan.kis...@siemens.com wrote:
On 2013-05-10 17:39, Kashyap Chamarthy wrote:
On Fri, May 10, 2013 at 8:54 PM, Jan Kiszka jan.kis...@siemens.com wrote:
On 2013-05-10 17:12, Jan Kiszka
I tried to reproduce such a problem, and I found L2 (Linux) hangs in
SeaBIOS, after line iPXE (http://ipxe.org) It happens with or
w/o VMCS shadowing (and even without my virtual EPT patches). I didn't
realize this problem until I updated the L1 kernel to the latest (e.g.
3.9.0) from
On Sun, May 12, 2013 at 06:00:38PM +0530, Kashyap Chamarthy wrote:
I tried to reproduce such a problem, and I found L2 (Linux) hangs in
SeaBIOS, after line iPXE (http://ipxe.org) It happens with or
w/o VMCS shadowing (and even without my virtual EPT patches). I didn't
realize this
On Sun, May 12, 2013 at 6:08 PM, Gleb Natapov g...@redhat.com wrote:
On Sun, May 12, 2013 at 06:00:38PM +0530, Kashyap Chamarthy wrote:
I tried to reproduce such a problem, and I found L2 (Linux) hangs in
SeaBIOS, after line iPXE (http://ipxe.org) It happens with or
w/o VMCS
Kashyap Chamarthy kashyap...@gmail.com wrote on 12/05/2013 03:42:33 PM:
Again, sorry :(. I was just about to reply that this was physical host.
I'm testing by disabling VMCS Shadowing per Jan Kiszka's suggestion,
and retrying. But I doubt that's the reason my L2 is seg-faulting. If
it
On Sun, May 12, 2013 at 6:29 PM, Abel Gordon ab...@il.ibm.com wrote:
Kashyap Chamarthy kashyap...@gmail.com wrote on 12/05/2013 03:42:33 PM:
Again, sorry :(. I was just about to reply that this was physical host.
I'm testing by disabling VMCS Shadowing per Jan Kiszka's suggestion,
and
So, from the above info shadow-vmcs is ruled-out. I'm trying to
investigate further, will post details if I have new findings.
Update:
-
I just tried to create L2 w/ Fedora-19 TC4 compose of 11MAY2013, I
contibuously see the below fragment (F18/F19, whatever the L2 guest
is):
[ 217.938034] Uhhuh. NMI received for unknown reason 30 on CPU 0.
[ 217.938034] Do you have a strange power saving mode enabled?
.[ 222.523373] Uhhuh. NMI received for unknown reason 20 on CPU 0.
[ 222.524073] Do you have a strange power saving mode enabled?
[
Kashyap Chamarthy kashyap...@gmail.com wrote on 12/05/2013 04:06:40 PM:
Note shadow vmcs is disabled unless you have a processor
that supports this feature. Do you ?!
Yes, I noted this in my previous email. I'm using Intel Haswell.
Here's the info from MSR bits on the machine(From
On Sun, May 12, 2013 at 04:48:28PM +0300, Abel Gordon wrote:
Kashyap Chamarthy kashyap...@gmail.com wrote on 12/05/2013 04:06:40 PM:
Note shadow vmcs is disabled unless you have a processor
that supports this feature. Do you ?!
Yes, I noted this in my previous email. I'm using
On Sun, May 12, 2013 at 07:01:43PM +0530, Kashyap Chamarthy wrote:
So, from the above info shadow-vmcs is ruled-out. I'm trying to
investigate further, will post details if I have new findings.
Update:
-
I just tried to create L2 w/ Fedora-19 TC4 compose of 11MAY2013, I
Yep, shadow-vmcs enabled :)
:) Good to clarify.
Just for reference, here's the detailed procedure I noted while
testing it on Haswell --
https://raw.github.com/kashyapc/nvmx-haswell/master/SETUP-nVMX.rst
Also note you can disable
shadow-vmcs using the kvm-intel kernel module
[ 217.938034] Uhhuh. NMI received for unknown reason 30 on CPU 0.
[ 217.938034] Do you have a strange power saving mode enabled?
.[ 222.523373] Uhhuh. NMI received for unknown reason 20 on CPU 0.
[ 222.524073] Do you have a strange power saving mode enabled?
[
Side note: While testing nVMX, I was hitting a libvirt bug, and filed this one:
-- https://bugzilla.redhat.com/show_bug.cgi?id=961665 -- [virsh]
Attempt to force destroy a guest fails due to 'unknown' reason, leaves
a defunct qemu process
which I was told is possibly a Kernel/KVM bug.
Any
Heya,
This is on Intel Haswell.
First, some version info:
L0, L1 -- both of them have same versions of kernel, qemu:
=
$ rpm -q kernel --changelog | head -2
* Thu May 09 2013 Josh Boyer - 3.10.0-0.rc0.git23.1
- Linux v3.9-11789-ge0fd9af
=
=
$ uname -r ; rpm -q qemu-kvm
On Fri, May 10, 2013 at 8:03 PM, Kashyap Chamarthy kashyap...@gmail.com wrote:
Also,
I'm able to reproduce this consistently: When I create an L2 guest:
--
[.]
[ 463.655031] Dazed and confused, but trying to continue
[ 463.975563] Uhhuh. NMI received for unknown reason
On 2013-05-10 15:00, Kashyap Chamarthy wrote:
Heya,
This is on Intel Haswell.
First, some version info:
L0, L1 -- both of them have same versions of kernel, qemu:
=
$ rpm -q kernel --changelog | head -2
* Thu May 09 2013 Josh Boyer - 3.10.0-0.rc0.git23.1
- Linux
On 2013-05-10 17:12, Jan Kiszka wrote:
On 2013-05-10 15:00, Kashyap Chamarthy wrote:
Heya,
This is on Intel Haswell.
First, some version info:
L0, L1 -- both of them have same versions of kernel, qemu:
=
$ rpm -q kernel --changelog | head -2
* Thu May 09 2013 Josh Boyer -
On Fri, May 10, 2013 at 8:54 PM, Jan Kiszka jan.kis...@siemens.com wrote:
On 2013-05-10 17:12, Jan Kiszka wrote:
On 2013-05-10 15:00, Kashyap Chamarthy wrote:
Heya,
This is on Intel Haswell.
First, some version info:
L0, L1 -- both of them have same versions of kernel, qemu:
[3] Libvirt XMLs I used (for reference) --
https://github.com/kashyapc/nvmx-haswell/tree/master/tests/libvirt-xmls-for-l1-l2
Oops, forgot to add, here we go --
https://github.com/kashyapc/nvmx-haswell/tree/master/tests/libvirt-xmls-for-l1-l2
/kashyap
--
To unsubscribe from this list: send the
On 2013-05-10 17:39, Kashyap Chamarthy wrote:
On Fri, May 10, 2013 at 8:54 PM, Jan Kiszka jan.kis...@siemens.com wrote:
On 2013-05-10 17:12, Jan Kiszka wrote:
On 2013-05-10 15:00, Kashyap Chamarthy wrote:
Heya,
This is on Intel Haswell.
First, some version info:
L0, L1 -- both of them
On Fri, May 10, 2013 at 9:33 AM, Jan Kiszka jan.kis...@siemens.com wrote:
On 2013-05-10 17:39, Kashyap Chamarthy wrote:
On Fri, May 10, 2013 at 8:54 PM, Jan Kiszka jan.kis...@siemens.com wrote:
On 2013-05-10 17:12, Jan Kiszka wrote:
On 2013-05-10 15:00, Kashyap Chamarthy wrote:
Heya,
This
On 2013-05-10 19:40, Nakajima, Jun wrote:
On Fri, May 10, 2013 at 9:33 AM, Jan Kiszka jan.kis...@siemens.com wrote:
On 2013-05-10 17:39, Kashyap Chamarthy wrote:
On Fri, May 10, 2013 at 8:54 PM, Jan Kiszka jan.kis...@siemens.com wrote:
On 2013-05-10 17:12, Jan Kiszka wrote:
On 2013-05-10
We know after you tried. I don't have access to a Haswell box, so we
better exclude this beforehand.
Fair enough. I'll try that too, and let you know.
You get that backtrace in L1, correct?
Yes.
If you have any further tracing pointers, I could do some debugging.
Thanks, I may come
On Fri, May 10, 2013 at 11:39 PM, Jan Kiszka jan.kis...@siemens.com wrote:
On 2013-05-10 19:40, Nakajima, Jun wrote:
On Fri, May 10, 2013 at 9:33 AM, Jan Kiszka jan.kis...@siemens.com wrote:
On 2013-05-10 17:39, Kashyap Chamarthy wrote:
On Fri, May 10, 2013 at 8:54 PM, Jan Kiszka
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