Tentiatively I would say no (makes not sense). The story there is that
for 2.6.35 the code was at a point where save/restore seems to work.
Upstream changed after that to use functionality introduced into the
generic interrupt handling code. But that had the problem of not
reactivating interrupts
Hm, that stack trace looks a bit like that task somehow got starved off
on its way into suspend. There has been regression reports
(unfortunately after testing in proposed) on real hardware which was
tracked to
commit f0cf1db8f15e8f95f5085f191313694cb623a558
Author: Thomas Gleixner
Yep, all the time.
Sure Stefan, give me the kernel and I'll test it.
Cheers.
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Title:
Ubuntu Crashes/Freeze on XenMotion
To manage
Seems I got confused on the kernel versions this morning. The patch I
was suspecting actually was not present in 2.6.32-37.81. The code with
it did not yet get moved into updates. So clearly not the problem here.
That will make it take a bit longer until I may post a kernel to try...
:(
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You
Revert this makes any sense ?
http://patchwork.ozlabs.org/patch/129004/
I saw the kernel source it seems still applied in this release, but I'm
not sure if thats causing the problem.
btw in XS 6.0 works fine, problem only occurs in 5.6
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Hmmm... Now it doesn't crash. But I lose network access and I get a
stack trace
[7744382.224271] eth0: no IPv6 routers present
[7744715.716789] PM: suspend of devices complete after 0.119 msecs
[7744715.716794] suspending xenstore...
[7744715.716825] PM: late suspend of devices complete after
I've just tested 2.6.32-37-generic-pae on Lucid and the problem is
solved.
Please make sure this problem stays solved, It has been a pain having
this problem coming back on almost every update...
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Same problem for Lucid (10.04) in today update: 2.6.32-36-generic
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Title:
Ubuntu Crashes/Freeze on XenMotion
To manage notifications about this
I'm also seeing this with the 2.6.32-35 kernel. When I try to live migrate a
system with that kernel, it hangs in some fashion. Console is black screen.
When I try to ssh in, it responds but cannot finish auth process.
2.6.32-34 had a kernel panic when I migrated.
Installing
This problem returned in 2.6.32-35
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Title:
Ubuntu Crashes/Freeze on XenMotion
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Likely the regression reported in bug #881542. Trying to get it fixed in
the next update.
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Title:
Ubuntu Crashes/Freeze on XenMotion
To manage
This bug was fixed in the package linux - 2.6.35-30.54
---
linux (2.6.35-30.54) maverick-proposed; urgency=low
[ Brad Figg ]
* Release Tracking Bug
- LP: #794114
[ Upstream Kernel Changes ]
* Revert xhci: Fix full speed bInterval encoding.
* Revert USB: xhci - also
The bug got fixed by applying the HowTo in Citrix's website as mentioned at #36
in this thread.
The Lucid kernel 2.6.32-33.66 which released few days ago didn't do any help,
but 2.6.38 solved this.
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Okay, here goes my tests:
2.6.35-28-server #50-Ubuntu SMP Fri Mar 18 18:59:25 UTC 2011 x86_64 GNU/Linux
[2819125.429932] [ cut here ]
[2819125.429943] kernel BUG at
/build/buildd/linux-2.6.35/arch/x86/xen/spinlock.c:344!
[2819125.429950] invalid opcode: [#1] SMP
** Tags added: verification-done-maverick
** Tags removed: verification-needed-maverick
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Ubuntu Crashes/Freeze on XenMotion
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The verification period for this kernel will close soon, and we have not
received verification that the problem is resolved in Maverick. Please
test and post results to this bug or the fix will be reverted from the
release.
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It is probably stretching things a bit, but Davim sort of does a
verification for Maverick kernels in comment #39 as he installed the
kernels that I did provide in comment #37 into a Lucid installation (and
I only provided 2.6.35 kernels).
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** Branch linked: lp:ubuntu/lucid-proposed/linux-mvl-dove
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Note that comment #43 only applies to Lucid and not to maverick. So we
are still awaiting verification that the problem is resolved in Maverick
by the kernel in -proposed.
Thanks
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** Branch linked: lp:ubuntu/maverick-proposed/linux-mvl-dove
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Title:
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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-
maverick' to 'verification-done-maverick'.
If verification is not done by one week from
The kernel released on this fix as a nastier bug tha causes the VMs to
freeze on boot if they're configured with more than 512M of RAM, see
this bug report:
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/790747
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** Branch unlinked: lp:ubuntu/lucid-proposed/linux-ec2
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This bug was fixed in the package linux - 2.6.32-32.62
---
linux (2.6.32-32.62) lucid-proposed; urgency=low
[ Brad Figg ]
* Release Tracking Bug
- LP: #767370
[ Stefan Bader ]
* (config) Disable CONFIG_NET_NS
- LP: #720095
[ Upstream Kernel Changes ]
* Revert
Works for me.
I've migrated a test VM from and to the pool master a couple of times.
Everything still seems to work like it should.
Hoping to see this in the official kernel soon.
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Well, the kernels supplied are 2.6.35 ones (10.10 Maverick). And the
patch is queued for the next update (after a currently pending one). The
same patch is in the currently pending 2.6.32 (10.04 Lucid) kernel too.
Just the feeling there from some feedback is that there might still be
some (other)
Thanks Stefan I haven't been able to test those kernels yet, I intend to
test them until the end of this week...
I've noticed that the problem does not only occur on xenmotion but also
on suspend/resume.
I will get back to you as soon as I have the chance to test those
kernels.
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Success!!!
I've just tested the kernels provided by Stefan and they solve the
problem :)
The test I made was:
* Installed a new Ubuntu 10.04.2 VM (net install) with two vCPUs
* Tried to migrate the VM to another Xenserver and confirmed it crashed
* Downloaded and installed the generic-pae
Davim, I placed some 2.6.35 kernels that include the proposed patch at
http://people.canonical.com/~smb/lp681083/. If you could try one of
those and let me know the result. So we can decide whether this is an
issue with some setups over all releases or this is a secondary issue
only with Lucid.
I've just tested the 2.6.35-25-generic-pae kernel on one of my VMs that
always crash on xenmotion and the problem is the same :(
Does anyone have a solution for this???
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Seems the patch we added for 2.6.32 (Lucid) is still missing for 2.6.35
(Maverick). I will get it SRUed there as well.
** Also affects: linux (Ubuntu Maverick)
Importance: Undecided
Status: New
** Changed in: linux (Ubuntu Maverick)
Importance: Undecided = Medium
** Changed in:
But the 2.6.32 is not working either...
Before testing the 2.6.35 I was on the 2.6.32-31-generic-pae.
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Title:
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Is there any other information I can add to help determine the
cause/solution of this problem?
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It seems that there are probably two problems involved. On .32 some
people were seeing improvement. But others still see a crash that seemed
to look a bit different. So at least having that fix in .35 as well
sounds reasonable. And maybe there no other problem exists and the
remaining other
There is an article in Citrix knowledge center about this problem. Their
workaround is to install natty's backported kernel, which is based on 2.6.38.
I've tested it on 5.6FP1 with 64bit Lucid guest, and works fine, every
migration completed successfully.
However it would be nice if the official
the Citrix link: http://support.citrix.com/article/CTX129472
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I dont know if its the same bugs or another bug here its the stack trace
on the ocasional failures:
[6368472.738379] Call Trace:
[6368472.738389] [81041abe] ? pick_next_task_fair+0xca/0xd6
[6368472.738395] [812fae40] ? thread_return+0x79/0xe0
[6368472.738401] [8100e160]
Ummm... Disregard that stack trace... I was using the Debian 6... =/
Sorry.
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What do you mean by bugged host?
Hat is the problem with that host?
Reinstalling the host would solve the problem?
I have a pool with 10 hosts and all of my linux VMs (about 20VMs) are running
the same ubuntu kernel (2.6.32-31-generic-pae) and some of them always crash on
migration, some never
Same problem here, most of the times it works but some times it crashes...
I would say it's crashing one out of 5 migrations...
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Title:
Ubuntu
Yea, seems that it continuing but sometimes it works.
First it seems that were crashing only when I migrate to the master.
Then it seems more random BUT for example. If I migrate to the destiny
and that migration failed, all migrations for that same destiny will
fail.
Like in some of my pools I
I installed 2.6.32-32-server on our lucid guests running under xenserver
5.6 fp1 and the migration now works randomly. So there is some progress
because before that it wasn't working at all. When it doesn't work, the
same xenwatch backtrace is shown. SLES 11 SP1 guests migrate
flawlessly...
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2.6.32-32-server #62-Ubuntu SMP Wed Apr 20 22:07:43 UTC 2011 x86_64
GNU/Linux
Working fine !!! Nice.
Gonna try more test, but simple migrations seems to work fine.
Tks
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** Tags added: verification-done-lucid
** Tags removed: verification-needed-lucid
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Installed linux-image-2.6.32-32-server and migrated slave-master-slave
and I didn't see any problems. Seem to work fine now.
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I have no problem moving VMs around but if I suspend one Ubuntu VM it
freezes on resume...
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There is no solution yet I think, maybe in the next kernel release.
Although I have tried this kernel which does allow xen motion(like posted
above):
http://kernel.ubuntu.com/~kernel-ppa/mainline/v2.6.33.5-lucid/linux-image-2.6.33-02063305-generic_2.6.33-02063305_amd64.deb
It works well
I have the same problem. Anyone got the solution?
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No news?
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I've done a test with Debian 6.0 and it works fine (no crash/lost network
connection) on vmotion with XenServer 5.6 FP1.
Debian included this patch in their last kernel:
[ Ian Campbell ]
* xen: blkback: fix potential leak of kernel thread. (CVE-2010-3699)
Their prior last kernel linux-2.6
Is there any news on this?
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Apparently we got hit by confusion. Usually Xen in Lucid means the ec2 topic
branch. But in this case this is the generic kernel. Actually the patch has no
effect when applied to the ec2 topic branch as the file does exist but is
completely ignored in that build.
So at the moment it was only
** Tags added: regression-update
** Tags removed: regression-proposed
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** Branch linked: lp:ubuntu/lucid-proposed/linux-ec2
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** Tags added: verification-needed-lucid
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** Changed in: linux (Ubuntu Lucid)
Status: In Progress = Fix Committed
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Hi Luiz,
I have two different pools with two different processors
1) amd
when i migrate A - B and B is the master of the pool the console (and the vm)
freeze;
when i migrate B - A and B is the master all works fine (with the patch);
when i migrate B - C and all are members all works fine (with
** Changed in: linux (Ubuntu)
Status: Incomplete = Triaged
** Tags added: regression-proposed
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Title:
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For Natty the fix mentioned is included with 2.6.37 final:
commit 6903591f314b8947d0e362bda7715e90eb9df75e
Author: Ian Campbell ian.campb...@citrix.com
Date: Mon Nov 1 16:30:09 2010 +
Now it needs to be backported to our ec2 topic branch for Lucid.
xen: events: do not unmask event
Hi Muriel,
Which processor are you using ?
It seems that the kernel doesnt crash, but still freezes at least for
me.
Unable to get console output or IO problem causing the process hang
warning.
But the wierd thing is that when I migrate to hostA - hostB = console freeze.
HostB - hostA = IO
SRU Justification:
Impact: With the current ec2 kernels the kernel oops described in
comment #3 is experienced as a result of enabling interrupts on the pv
spinlock event channel.
Fix: The following patch is taken from upstream and is included in
2.6.37. It has been reported to successfully
This patch works for me, is derived from this thread
http://xen.1045712.n5.nabble.com/PATCH-xen-events-do-not-unmask-polled-
ipis-on-restore-td3241695.html
** Patch added: events.c.patch
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/681083/+attachment/1797845/+files/events.c.patch
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Hi all,
this is my experience with this bug.
Ubuntu server 10.04, x86_64, kernel from standard repo:
2.6.32.27 doesn't work
2.6.32.26 doesn't work
2.6.32.25 work unstable ( sometimes yes, often not)
2.6.32.24 and earlier works.
The problem is also present in mainline kernels:
2.6.32-0206321505
Problem still happening in the XenServer 5.6 FP1 Beta
** Tags removed: kj-triage needs-kernel-logs
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Testing the latest version (natty) I get:
xenfs: not registering filesystem on non-xen platform
So I cant do a migration between hosts to test this.
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Hi Luiz,
Please be sure to confirm this issue exists with the latest development release
of Ubuntu. ISO CD images are available from
http://cdimage.ubuntu.com/daily/current/ . If the issue remains, please run
the following command from a Terminal (Applications-Accessories-Terminal).
It
Testing the PPA's kernel, before http://kernel.ubuntu.com/~kernel-
ppa/mainline/v2.6.32.16.5-lucid/ it works well, after this release
2.6.32.16.5 the problem appears.
** Tags removed: needs-upstream-testing
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You
Updated to the new kernel release 2.6.32-26-generic
[1285568.771462] [ cut here ]
[1285568.771473] kernel BUG at
/build/buildd/linux-2.6.32/arch/x86/xen/spinlock.c:343!
[1285568.771486] invalid opcode: [#1] SMP
[1285568.771500] last sysfs file: /sys/power/pm_trace
Using 2.6.32-26-server, I think is the same problem, but got in swapper
process, anyways here goes:
[1286941.792445] [ cut here ]
[1286941.792454] kernel BUG at
/build/buildd/linux-2.6.32/arch/x86/xen/spinlock.c:343!
[1286941.792462] invalid opcode: [#1] SMP
Testing the PPA's kernel, before http://kernel.ubuntu.com/~kernel-
ppa/mainline/v2.6.32.16.5-lucid/ it works well, after this release
2.6.32.16.5 the problem appears.
Looking at the changes, this one seems to be related, changing the disk
and network, both symptoms that I'm getting:
xen:
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