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由 Michal Privoznik 提交于
Since we switched from direct host migration scheme to the one, where we connect to the destination and then just pass a FD to a qemu, we have uncovered a qemu bug. Qemu expects migration FD to block. However, we are passing a nonblocking one which results in cryptic error messages like: qemu: warning: error while loading state section id 2 load of migration failed The bug is already known to Qemu folks, but we should workaround already released Qemus. Patch has been originally proposed by Stefan Hajnoczi <stefanha@gmail.com>
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