Bug#897685: linux-image-3.16.0-6-amd64: Unable to start multiple KVM instances with libvirt

From	Sedat Dilek <sedat.dilek@credativ.de>
Newsgroups	linux.debian.bugs.dist, linux.debian.kernel
Subject	Bug#897685: linux-image-3.16.0-6-amd64: Unable to start multiple KVM instances with libvirt
Date	2018-05-08 11:00 +0200
Message-ID	<vN6Dv-4YL-1@gated-at.bofh.it> (permalink)
References	<vLFm1-5Sh-5@gated-at.bofh.it>
Organization	linux.* mail to news gateway

Cross-posted to 2 groups.

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Hi,

yesterday, we had maintenance day and wanted to upgrade our Ganeti clusters.

Our Ganeti clusters use KVM and libvirt.
Clusters running with Debian/stretch were not affected whereas clusters running Debian/jessie failed reproducible when starting more than 2 Ganeti instances.

First, we want to confirm this issue with linux-image-3.16.0-6-amd64.

We saw DRBD errors in our logs like...

drbdX: Discarding network configuration (X = Number of Ganeti instance)

As a workaround, we did a downgrade to the previous Debian-kernel release and put it on hold:

root# echo linux-image-3.16.0-5-amd64 hold | dpkg --set-selections
root# echo linux-image-amd64 hold | dpkg --set-selections

root# dpkg --get-selections | grep hold
linux-image-3.16.0-5-amd64                      hold
linux-image-amd64                               hold

Hope this helps.

Thanks,
- Sedat -

[1] https://www.mail-archive.com/debian-bugs-dist@lists.debian.org/msg1602078.html
[2] https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux-stable.git/log/?h=v3.16.56

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Bug#897685: linux-image-3.16.0-6-amd64: Unable to start multiple KVM instances with libvirt Richard Braun <rbraun@sceen.net> - 2018-05-04 11:40 +0200
  Bug#897685: linux-image-3.16.0-6-amd64: Unable to start multiple KVM instances with libvirt Sedat Dilek <sedat.dilek@credativ.de> - 2018-05-08 11:00 +0200

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