I think this bug may be closed.
I posted it to xen devel list and get answer:
"It's really an unsupported configuration. If you want to limit dom0 vcpus
then dom0_max_vcpus= on Xen command line is the correct way."
http://lists.xensource.com/archives/html/xen-devel/2011-08/msg00665.html
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Konsta
Yes, under native it does not happen.
2011/8/10 Ian Campbell
> Did you confirm that this doesn't also happen under native? On first
> glance it looks more like an issue with a specific driver than a Xen
> issue.
>
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Konstantin
http://docs.ganeti.org/ganeti/2.2/html/install.html
"For optimum performance when running both CPU and I/O intensive instances,
it’s also recommended that the dom0 is restricted to one CPU only, for
example by booting with the kernel parameter nosmp."
Also this benchmarking advises disable smp
htt
Ok, I fixed it for me, adding rootdelay=5 in the kernel parameters.
2011/3/3 Don Armstrong :
> This bug has nothing to do with bdo, and honestly, I'm not sure if
> it's actually a big deal at all, either... the initrd should load the
> remaining raid devices after the kernel boots.
--
Konstant
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