On 07/21/2011 09:18 AM, Avi Kivity wrote:
On 07/21/2011 02:55 PM, Jan Kiszka wrote:
>>
> CPU hotplug for Linux suppose to be easy (with allow_hotplug patch
> applied). But we have two bugs currently. One is that ACPI interrupt
I bet we have multiple bugs for quite a while now, which accelerated bit
rotting even further.
kvm-autotest to the rescue!
Lucas, do we have a cpu hotplug test in kvm-autotest?
Hey Avi, I just read the thread, and let me tell you guys, I have worked
on a cpu_set test, that was supposed to test CPU hotplug. I have created
the entire test, however, I could never ever get the test to pass due to
the fact that the infrastructure on qemu is broken. I have revisited the
test late 2010, and I've verified that although cpu_set does not crash
qemu anymore, the guest OS has no idea whatsoever that a new CPU was
added. I remember that one of the problems we had was lack of
functionality in Seabios...
I can gladly get back to it and get it commited (I was reluctant in
getting it upstream because I never ever got a successful test result),
but I can put it into shape and get it commited.
Cheers,
Lucas
If so, I promise to add it to my autotest run once it is fixed, to
prevent the spread of the disease.
btw, Anthony, are you running kvm-autotest these days? with qemu-kvm
diverging less and less from qemu.git these days, it's becoming less
effective to run it downstream.
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