OR using EOL release, and no response for years.
** No longer affects: linux (Ubuntu)
** Package changed: linux (Fedora) => linux (Ubuntu)
** Changed in: linux (Ubuntu)
Importance: Medium => Undecided
** Changed in: linux (Ubuntu)
Remote watch: Red Hat Bugzilla #652210 => None
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Sergey Svishchev, this bug was reported a while ago and there hasn't
been any activity in it recently. We were wondering if this is still an
issue? If so, could you please test for this with the latest development
release of Ubuntu? ISO images are available from
I wonder what the current state is...
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Title:
Cannot use SR-IOV feature of Intel 82576 network card
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@Sergey Svishchev (svs)
Seems I should have read your comments more closely.
I just noticed the part about blacklisting the igbvf module, so it won't
attach to VF devices.
I will test that on 12.04 soon.
My PPA:
https://launchpad.net/~nutznboltz/+archive/kvm-libvirt-lts
did get updated to
Works!
1. install 12.04 LTS (no PPA's or other modifications)
2. configure igb via
/etc/modprobe.d/igb.conf contains:
options igb max_vfs=7
/etc/modprobe.d/blacklist-igbvf.conf
blacklist igbvf
3. put those configuration files in the initrd
sudo update-initramfs -k all -t -u
4. reboot
5.
I'm seeing not enough MMIO resources for SR-IOV when I use max_vfs=7
on:
$ uname -srvm
Linux 3.2.0-8-generic #15-Ubuntu SMP Wed Jan 11 13:57:44 UTC 2012 x86_64
$ lsb_release -ds
Ubuntu precise (development branch)
$ lspci -nn | grep Eth
03:00.0 Ethernet controller [0200]: Intel Corporation
There is a possibility that a necessary patch (based on a statement by
Linus) was vetoed by Bjorn Helgaas bjorn.helgaas@hp@ com
Start of thread:
http://marc.info/?l=linux-kernelm=128392923724817w=2
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The OP has redhat-bugs #652210 as the Red Hat bug but that is wrong.
That one was closed with Status: CLOSED NOTABUG
This one is much more interesting:
https://bugzilla.redhat.com/show_bug.cgi?id=523341
I think the story is:
1. BIOS doesn't know about SR-IOV Virtual Functions so it does not
** Changed in: linux (Ubuntu)
Status: Incomplete = Confirmed
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Title:
Cannot use SR-IOV feature of Intel 82576 network card
To manage
** Also affects: linux (Fedora) via
https://bugzilla.redhat.com/show_bug.cgi?id=652210
Importance: Unknown
Status: Unknown
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Title:
Recent QEMU (0.14) fixes 'kvm_run' problem. Discussion:
http://comments.gmane.org/gmane.comp.emulators.kvm.devel/56521
Userspace relied on something that was not guarantied by the kernel (access to
read only page forwarded to userspace as MMOI).
...
I just submitted a set of patches that
For the time being, I've worked around this problem by patching Natty's
kernel with pci=override patch --
https://patchwork.kernel.org/patch/237341/
Why this is necessary:
https://bugzilla.redhat.com/show_bug.cgi?id=652210#c8
(a) the BIOS is not reserving enough space in the PCI bridge
SR-IOV is not yet working for me, though. I've had to:
- [on host] blacklist the igbvf module, so it won't attach to VF devices
- [on host] install QEMU-KVM and libvirt from ppa:nutznboltz/kvm-
libvirt-lts (else QEMU fails with 'get_real_device:
/sys/bus/pci/devices/:05:10.0/vendor:
** Attachment added: version.log
https://bugs.launchpad.net/bugs/790201/+attachment/2147763/+files/version.log
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Title:
Cannot use SR-IOV
** Attachment added: lspci-vnvn.log
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/790201/+attachment/2147764/+files/lspci-vnvn.log
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