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Hi, We are encountering a problem of race conditions for
getting VNC port when VM start up. In a very powerful hypervisor, if we try to start up
more than 1 VM concurrently, then there might be some VMs failed to start up due
to VNC port confilict. We searched libvirt bugs and found that some one
report the problem and we have give a fix, but the fix can not resolve the
problem. http://osdir.com/ml/libvir-list/2010-05/msg00530.htmlhttps://build.opensuse.org/package/view_file?file=vnc-race-3.patch&package=libvirt&project=Virtualization:openSUSE11.3The bitmap test-and-set operation is not atomic, so that there still is a time-window in which a VNC port could be reserved for two caller. Your help is highly appreciated!Thanks,
Guangya Liu |
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