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2012 Jan 09
0
KVM VM crash under I/O load (e1000 and virtio)
..., but I guess I don't understand why it's causing the problem in the
first place.
The same thing also happens when using the virtio block driver under heavy
load. Unfortunately this is forcing me to fall back to the default NIC
drivers, which are very slow (~120Mbit/s VM<->VM vs ~460Mbit/s with virtio).
We're using vanilla kernel 2.6.32, with the following KVM-related packages:
kmod-kvm-83-239.el5.centos
kvm-qemu-img-83-239.el5.centos
kvm-83-239.el5.centos
libvirt-0.8.2-22.el5
Here is an example config (you can see where I commented out the model
lines, because t...