At least this specific problem should be no issue anymore. The patches
went into 2.6.32-32.62. Unfortunately the were missing the magic to
automatically cause the bug report to be closed. Doing that now
manually.
** Changed in: linux (Ubuntu Lucid)
Status: Fix Committed = Fix Released
--
FYI, +1 on this even when using the patched kernels:
Host system AMD Ubuntu 10.04 2.6.32-34-server
Guest system Ubuntu 10.04, have tried several kernels, including:
2.6.38-11-server (From backport as per above)
2.6.32-34-server
2.6.32-33-server
2.6.32-29-generic (From Deb package above)
Update to above - I've just installed a fresh 10.04 guest, tried
2.6.32.33-server and 2.6.32.34-server, no problem running the guest with
smp greater than 1. Must be something else I've installed.
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** Tags added: testcase
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https://bugs.launchpad.net/bugs/714335
Title:
KVM SMP Linux Guests Hang on AMD
To manage notifications about this bug go to:
Noticed that this had been committed already and would be in one of the
next proposed. An attempt to submit to stable upstream was made but does
not seem to get anywhere, despite of some ok in review.
** Changed in: linux (Ubuntu Lucid)
Status: In Progress = Fix Committed
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I would assume that, since the requested patches are upstream already in
the 2.6.37 timeframe, this problem is fixed already in Natty.
** Changed in: linux (Ubuntu)
Status: Confirmed = Fix Released
** Changed in: linux (Ubuntu Lucid)
Status: Triaged = In Progress
** Changed in:
** Also affects: linux (Ubuntu Lucid)
Importance: Undecided
Status: New
** Changed in: linux (Ubuntu Lucid)
Importance: Undecided = Medium
** Changed in: linux (Ubuntu Lucid)
Status: New = Triaged
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(Note that an updated and split-up version of the patch in comment #27
is in the hands of the kernel team.)
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https://bugs.launchpad.net/bugs/714335
Title:
KVM SMP Linux Guests Hang on
Thanks, Brian. This fix is awaiting review from the kernel team, so
should not yet be even in -generic. After review it will go into all
the flavours.
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I have tested this on the latest -server kernel and the problem is
indeed NOT fixed. It looks like the patch only made it into the
-generic kernel. It does work in the -generic kernel, but since only
the -generic kernel was patched, anyone using -server will still
experience this issue.
To
I am concerned that this patch possibly didn't make it into the -server
kernel (or possibly the -virtual kernel), only the -generic kernel:
-rw-r--r-- 1 root root 4052960 2011-02-28 18:37 vmlinuz-2.6.32-29-generic
-rw-r--r-- 1 root root 4110656 2011-02-11 16:52 vmlinuz-2.6.32-29-server
I think
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)
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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)
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** Description changed:
Binary package hint: qemu-kvm
+ =
+ SRU Justification
+ 1. impact: KVM smp guests hang on AMD
+ 2. how was the bug addressed: Two upstream commits (plus a third auxiliary)
were re-implemented on lucid's kernel.
+ 3. patch: see
** Summary changed:
- KVM SMP Linux Guests Hang
+ KVM SMP Linux Guests Hang on AMD
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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
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@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
** Summary changed:
- KVM SMP Linux Guests Hang
+ KVM SMP Linux Guests Hang on AMD
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https://bugs.launchpad.net/bugs/714335
Title:
KVM SMP Linux Guests Hang on AMD
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ubuntu-bugs
** 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
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Bugs,
@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
@Brian,
jinkeys, sorry, I don't know what I was thinking. The kernel is at
http://people.canonical.com/~serge/linux-
image-2.6.32-29-generic_2.6.32-29.58ubuntu1_amd64.deb
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