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由 Eric Blake 提交于
https://bugzilla.redhat.com/show_bug.cgi?id=888426 The code for doing a block-copy was supposed to track the destination file in drive->mirror, but was set up to do all mallocs prior to starting the copy so that OOM wouldn't leave things partially started. However, the wrong variable was being written; later in the code we silently did 'disk->mirror = mirror' which was still NULL, and thus leaking memory and leaving libvirt to think that the mirror job was never started, which prevented a pivot operation after a copy. Problem introduced in commit 35c7701c. * src/qemu/qemu_driver.c (qemuDomainBlockCopy): Initialize correct variable.
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