On 05/22/2017 04:10 AM, Xieyingtai wrote: > Hi, > Recently, I got a problem when vm with multiple disks made an > external snapshot using dataplane with the same iothread. Aio context > was acquired in external_snapshot_prepare(), which will be released in > external_snapshot_clean() with all bs snapshots committed together. In > this scene, when the same iothread was configured with multiple disks, > the second bs will hang in aio_poll() waiting IO returned, as the > iothread could not acquired the aio context.
Does this series clean up your issue? https://lists.gnu.org/archive/html/qemu-devel/2017-05/msg04923.html -- Eric Blake, Principal Software Engineer Red Hat, Inc. +1-919-301-3266 Virtualization: qemu.org | libvirt.org
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