*** This bug is a duplicate of bug 1029430 ***
https://bugs.launchpad.net/bugs/1029430
** This bug has been marked a duplicate of bug 1029430
KVM guests networking issues with no virbr0 and with vhost_net kernel
modules loaded
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It looks like this is related to the discussion of vhost_net, packet
checksumming and DHCP @ http://www.spinics.net/lists/kvm/msg37660.html
and recent changes to libvirt that enable 'vhost=on' by default for KVM
processes (vhost=on does not get set by default on precise)
Using iptables on the host
Finished bisecting over the weekend. It concluded that
7c7c7f01cc5e3e423120a4848a73dd5e4586f2f9 is the first bad commit. The
following is a summary of the bisect against linux-stable:
git bisect start
git bisect good v3.2
git bisect bad v3.3-rc1
2ac9d7aaccbd598b5bd19ac40761b723bb675442 - good
a
** Tags added: rls-q-incoming
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https://bugs.launchpad.net/bugs/1035172
Title:
DHCP broken for Openstack Nova instances since kernel v3.3
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Hi Adam,
Here's some info to perform the kernel bisect.
I was using the upstream linux-stable tree to perform the bisect. To clone
that tree, you can run:
git clone git://git.kernel.org/pub/scm/linux/kernel/git/stable/linux-stable.git
linux-stable
Then cd into linux-stable
I used stable v3.2
** Changed in: linux (Ubuntu)
Assignee: Joseph Salisbury (jsalisbury) => (unassigned)
** Changed in: linux (Ubuntu)
Status: In Progress => Triaged
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I built the next test kernel, which is built up to commit:
16008d641670571ff4cd750b416c7caf2d89f467
This kernel is available from:
http://people.canonical.com/~jsalisbury/lp1035172
Can you test that kernel and report back if it has the bug or not?
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This one is good, too. Thanks Joseph.
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Title:
DHCP broken for Openstack Nova instances since kernel v3.3
To manage notifications about this bug
I built the next test kernel, which is built up to commit:
a429638cac1e5c656818a45aaff78df7b743004e
This kernel is available from:
http://people.canonical.com/~jsalisbury/lp1035172
Can you test that kernel and report back if it has the bug or not?
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That kernel is good and not affected by the bug.
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Title:
DHCP broken for Openstack Nova instances since kernel v3.3
To manage notifications ab
The first test kernel is built up to commit:
2ac9d7aaccbd598b5bd19ac40761b723bb675442
This kernel is available from:
http://people.canonical.com/~jsalisbury/lp1035172
Can you test that kernel and report back if it has the bug or not?
** Changed in: linux (Ubuntu)
Status: Incomplete => In
Hi Adam,
I started a bisect between v3.2 final and v3.3-rc1. I'll post a test
kernel shortly.
** Tags removed: precise
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Title:
DHCP broken for
Hi Joseph-
The same problem exists in v3.3-rc1. Using the mainline 3.2.28 (the
last 3.2.x kernel listed) from the following URL showed no sign of the
bug;
http://kernel.ubuntu.com/~kernel-ppa/mainline/v3.2.28-precise/
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Bug
** Tags removed: needs-bisect
** Tags added: performing-bisect
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Title:
DHCP broken for Openstack Nova instances since kernel v3.3
To manage not
Sorry, the URL for v3.3-rc3 was posted wrong. It should be:
v3.3-rc3 http://kernel.ubuntu.com/~kernel-ppa/mainline/v3.3-rc3-precise/
You can see the only part of the URL that changes is the -rcN piece.
** Changed in: linux (Ubuntu)
Status: Confirmed => Incomplete
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Thanks for the update, Adam.
Since you believe the regression was introduced in v3.3, can you test
the following release candidates? That will allow us to identify a
begin and end version for the bisect:
v3.3-rc1 http://kernel.ubuntu.com/~kernel-ppa/mainline/v3.3-rc1-precise/
v3.3-rc2 http://ker
Joseph, thanks and sorry I've been slow to respond. I'd be happy to
assist with a bisect, in fact I already attempted to do this myself but
I seemed to have hit some problems along the way when selecting proper
starting and endpoints for the bisect, or using the wrong tree. I've
even got a decent
@Adam,
Would it be possible for you to assist with a kernel bisect? I can build
test kernels for you to test. If you can assist, we would first need
to identify the kernel version that introduced this bug. We can then
bisect down to the offending commit.
Would it be possible for you to test th
@Joseph
I'm not sure this bug depends on that firmware error
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Title:
DHCP broken for Openstack Nova instances since kernel v3.3
To manage noti
@Adam,
Do you see the missing firmware error after installing the latest
Quantal kernel, or only with the v3.6-rc1 mainline kernel?
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Title:
DHCP
As the comment above, i've added apport and set bug to confirmed. I've
time until monday to do testing for this. Feel free to ask for more info
to solve this.
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This is the virtual machine boot log
** Attachment added: "vm_log.txt"
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1035172/+attachment/3263556/+files/vm_log.txt
** Tags added: apport-collected
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Same here, i've installed on our servers and i get:
W: Possible missing firmware /lib/firmware/rtl_nic/rtl8106e-1.fw for module
r8169
W: Possible missing firmware /lib/firmware/rtl_nic/rtl8168g-1.fw for module
r8169
but it seems that eth it's still working. So the bug it's still there,
I've att
Joseph- Yes, I've installed both. I was warned of possible missing
firmware at package installation and sure enough at boot:
bnx2: Can't load firmware file "bnx2/bnx2-mips-09-6.2.1b.fw"
I've run into similar issues with quantal kernels in the past, see bug
#1008749
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Did you happen to install both .debs, linux-image and linux-image-extra?
That should be all that is needed.
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Title:
DHCP broken for Openstack Nov
Joseph- I'm unable to get my host in working order for testing using
that kernel as the initrd does not contain the required firmware for my
NIC (bnx2) Is that expected to exist like it has for the other upstream
kernels I've tested, or is there something I must do after installing
the debs to rep
@Adam,
The v3.6-rc1 kernel is now out. Would it be possible for you to test
that kernel?
Also, I can assist you with the bisect and building test kernels if
needed.
Thanks in advance!
[0] http://kernel.ubuntu.com/~kernel-ppa/mainline/v3.6-rc1-quantal/
** Changed in: linux (Ubuntu)
Importa
I can confirm that the same bug happens when you run Openstack
configured in Vlan mode so when the vm interface (eth1) are splitted in
vlans.
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