[Xen-devel] a ton of kernel issues

[Tim Evers <it@xxxxxxxxxx>]

Hi folks,

please forgive me if I'm not 100% right on this list but I'm going mad
about the current xen development as far as the pv_ops kernel are
involved. I've been using Xen since 3.0 in various productive setups
without any serious problems for years now.

And now, since the support for the "patched" distro-kernel like debian 5
run out I'm trying to setup a working xen+pv_ops kernel with regard to
cpu and ram hotplug and live migration. Nothing special I thought but
hell I'm totally lost: After testing two month now dozens of
combinations I was not able to find a single kernel / xen combination
which supports the abovementioned features. Some crash after hotplug on
a migrated domu, some crash right at the migration and some crash right
at the start if vcpu_avail > vcpus.

I've tested

xen-4.0
xen-4.1

debian 6 32 and 64 bit (2.6.32-x kernel)
ubuntu lucid 32 and 64 bit kernels including karmic, natty and even
oneric backports

I've put some questions on the users mailinglist, wrote bug reports but
today after two month work on this I'm as stuck as one can get.

Is it possible that there is not a single working xen+pv_ops setup out
there which matches my needs? I can't believe it.

I appreciate _any_ hint!

Regards

Tim

http://lists.xen.org/archives/html/xen-users/2011-11/msg00553.html
http://lists.xen.org/archives/html/xen-users/2011-11/msg00523.html
http://lists.xen.org/archives/html/xen-users/2011-11/msg00295.html
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/893177

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