Am 20.11.2017 um 23:25 hat Paolo Bonzini geschrieben: > On 20/11/2017 12:16, Stefan Hajnoczi wrote: > > This raises questions about the ability to cancel sleep: > > > > 1. Does something depend on cancelling sleep? > > block_job_cancel does, but in practice the sleep time is so small > (smaller than SLICE_TIME, which is 100 ms) that we probably don't care.
Just note that this is something that can happen during the final migration phase when the VM is already stopped. In other words, with non-shared storage, these up to 100 ms are added to the migration downtime. Kevin > I agree with Jeff that canceling the sleep by force-entering the > coroutine seemed clever but is probably a very bad idea. > > Paolo
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