Hi Corey,
that is bad news - I literally migrated 10s of thousands of VMs T->B now and
newer hit that so far.
A few questions to get an initial hold on this:
1. is libvirt or the actual guest (qemu) going to 100% CPU?
2. can you provide an libvirt XML of one of the failing guests (to check if
they have anything special)
3. are one or all thready going insane on 100% CPU, maybe check with
$ pidstat -t -p <pid-that-hogs> 5 10
4. If it is at 100% it must spin "somewhere" could you take a look with a few
tools:
strace -f -r -T -p <pid-that-hangs>
If you can install `perf` that would be great as well.
** Changed in: qemu (Ubuntu)
Status: New => Incomplete
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https://bugs.launchpad.net/bugs/1826051
Title:
VMs go to 100% CPU after live migration from Trusty to Bionic
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