Comment 8 for bug 1882521

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Lee Yarwood (lyarwood) wrote : Re: Failing device detachments on Focal

So I'm even more convinced this is a host resource (I'd assume vCPU?) issue as I can reproduce this consistently on a 20.04 virtual machine with the same resources as our CI instances when running `$ tox -e full` in tempest, `$ tox -e full-serial` doesn't reproduce the issue at all. I'm going to try limiting things with --concurrency and try a slightly larger guest to see if that helps.