[CentOS-virt] VMs failing to restart
lhecking at users.sourceforge.net
Wed Mar 26 22:21:18 UTC 2014
> Have you tried other virtual network cards, and/or PV network (netback
> for Xen or virtio for KVM)?
Under CentOS5/Xen, I was always using the default NIC, and I disctinctly
remember I wasn't the only one in my team experiencing this problem.
For CentOS6/kvm, I switched from the default to the e1000 at some point,
but can't remember when. It was definitely working before and after I
switched; so yes, this might have to do with the e1000.
> That would help you isolate whether the problem was in the e1000
> emulation (which I suspect is shared between KVM and Xen) or in the
> host network configuration (which, it sounds like, is non-trivial).
As this is a production system, I'd have to set up a clone and experiment
with different options. I have an identical host machine, so no problem
in that regard, but this will take some time I don't currently have.
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