[libvirt] [bug-report] libvirtd can't be connected by using the master branch with lots of VMs

[Wangpan]

bug address: https://bugzilla.redhat.com/show_bug.cgi?id=1066801
I can reproduce it at master/v1.2.1-maint/v1.1.4-maint/v1.1.3.4 release branches everytime,
but cann't reproduce it at v1.2.1，so I believe this bug is imported by the maintain patches after v1.2.1 release.

Steps to Reproduce:
1.create many VMs(40 in my env) on the host
2.kill -9 `pid of libvirtd`
3.start libvirtd by using service libvirt-bin start

Actual results:
virsh version/list command is hung there without any responses

Expected results:
virsh version/list return the correct things

Additional info:
if there are few VMs(1 vm in my env), the virsh version command is OK

Thanks in advance!

2014-03-07
Wangpan