Ubuntu
linux package

10.04 LTS Server install Hyper-v Network issue with Multiple assigned virtual cores

Bug #720190 reported by Evan Swendsen
6
This bug affects 1 person
Affects Status Importance Assigned to Milestone
linux (Ubuntu)
Expired
Undecided
Unassigned

Bug Description

Fixed in 2.6.35

Fresh VM installed in hyper-v server using ubuntu 10.04 LTS server cd. Using Legacy network adapter in hyper-v. When using a single core assigned to the guest it works perfectly. I do the same process with more than one core and the network stops functioning properly.
Exact behavior is that ubuntu boots and network comes alive for approximately 10 seconds then it dies. VM stays running but network drops out.
Putting the VM back to single core network functions fine.
performed all apt-get updates within the release does not affect the behavior.
do-release-upgrade to 10.10 solves the problem, but i would like to know how to fix this while staying in 10.04 LTS

Anyone?

See original description
Fabio Marconi (fabiomarconi)
affects: ubuntu → linux (Ubuntu)
Fabio Marconi (fabiomarconi)
tags: added: lucid
description: updated
Revision history for this message
Evan Swendsen (evan-ywn) wrote :

I tried one more thing. If i use the linux-image-virtual kernel by selecting it VIA F4 at the initial install, this problem is gone. This specifically affects using the linux-image-server kernel in hyper-v

Revision history for this message
Jeremy Foshee (jeremyfoshee) wrote :

Hi Evan,

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 will automatically gather and attach updated debug information to this report.

apport-collect -p linux 720190

Also, if you could test the latest upstream kernel available that would be great. It will allow additional upstream developers to examine the issue. Refer to https://wiki.ubuntu.com/KernelMainlineBuilds . Once you've tested the upstream kernel, please remove the 'needs-upstream-testing' tag. This can be done by clicking on the yellow pencil icon next to the tag located at the bottom of the bug description and deleting the 'needs-upstream-testing' text. Please let us know your results.

Thanks in advance.

    [This is an automated message. Apologies if it has reached you inappropriately; please just reply to this message indicating so.]

tags: added: needs-kernel-logs
tags: added: needs-upstream-testing
tags: added: kj-triage
Changed in linux (Ubuntu):
status: New → Incomplete
Revision history for this message
Travis W Kiel (twkiel) wrote :

The minimal virtual install is working because it does not install the 'irqbalance' package. This problem happens on both 10.04 and 10.10. Install it however you want (normal install, or regular minimal; which looks just like normal to me but minimal virtual doesnt have LIC support), then uninstall 'irqbalance'. Your problem should be solved. Hopefully somebody can find a workaround so irqbalance can be installed again.

Revision history for this message
Launchpad Janitor (janitor) wrote :

[Expired for linux (Ubuntu) because there has been no activity for 60 days.]

Changed in linux (Ubuntu):
status: Incomplete → Expired
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