Hello Guys,

When the qemu process becomes hung, virsh will get stuck on the hung guest and can't move forward. It can be reproduced by the following steps:

1. setup a virt guest with qemu-kvm, and start it
2. stop qemu process with following:
kill -STOP `ps aux | grep qemu | grep -v grep | awk '{print $2}'`
3. run the following command:
virsh list

I think we can add a timeout for qemu monitor to resolve this problem: using virCondWaitUntil instead of virCondWait in qemuMonitorSend. What's your opinions?
Thanks!

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