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From: | Paolo Bonzini |
Subject: | Re: [Qemu-devel] [PATCH v9 06/10] replay: fix save/load vm for non-empty queue |
Date: | Thu, 4 May 2017 13:52:13 +0200 |
User-agent: | Mozilla/5.0 (X11; Linux x86_64; rv:45.0) Gecko/20100101 Thunderbird/45.8.0 |
On 04/05/2017 13:13, Pavel Dovgalyuk wrote: >>> This patch does not allows saving/loading vmstate when >>> replay events queue is not empty. There is no reliable >>> way to save events queue, because it describes internal >>> coroutine state. Therefore saving and loading operations >>> should be deferred to another record/replay step. >> >> Can it actually be non-empty after bdrv_drain_all? > > drain/flush cannot succeed, because started requests are > prisoned in the replay events queue. But that would apply to loading only. Saving should still be always possible. Paolo
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