I'm using xen4 .when I create a VM ,the xend.log hava the warning.<br />
<br />
#tail /var/log/xen/xend.log<br />
[2014-08-20 09:46:07 2528] DEBUG (DevController:628) hotplugStatusCallback /local/domain/0/backend/vbd/27/51744/hotplug-status.<br />
[2014-08-20 09:46:07 2528] DEBUG (DevController:628) hotplugStatusCallback /local/domain/0/backend/vbd/27/51744/hotplug-status.<br />
[2014-08-20 09:46:07 2528] DEBUG (DevController:642) hotplugStatusCallback 1.<br />
[2014-08-20 09:46:07 2528] DEBUG (DevController:139) Waiting for devices irq.<br />
[2014-08-20 09:46:07 2528] DEBUG (DevController:139) Waiting for devices vfb.<br />
[2014-08-20 09:46:07 2528] DEBUG (DevController:139) Waiting for devices pci.<br />
[2014-08-20 09:46:07 2528] DEBUG (DevController:139) Waiting for devices vusb.<br />
[2014-08-20 09:46:07 2528] DEBUG (DevController:139) Waiting for devices vtpm.<br />
[2014-08-20 09:46:07 2528] INFO (XendDomain:1225) Domain iozone008 (27) unpaused.<br />
[2014-08-20 09:46:07 2528] WARNING (XendDomainInfo:581) Could not unpause blktap disk: ('unpause', '-p22335', '-m0') failed (5632 )
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