Daan De Meyer
c88753db45
There's a race condition where the EXIT_STATUS= message we send just before shutting down the VM doesn't arrive on the host, presumably because the VM is shut down before the kernel has had a chance to forward the message to the host. Since there's no obvious way to wait until the message has been flushed to the host, let's send the message before we execute the final sync() instead of after executing the final sync(). In my testing, this seems to either guarantee the message is sent or introduces sufficient delay that the kernel always has time to flush its socket buffers to the host.
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