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@@ -284,7 +284,7 @@ class NetVMMixin(qubes.events.Emitter):
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'''
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dev_basepath = '/local/domain/%d/device/vif' % self.xid
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- for dev in self.app.vmm.xs.ls('', dev_basepath):
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+ for dev in self.app.vmm.xs.ls('', dev_basepath) or []:
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# check if backend domain is alive
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backend_xid = int(self.app.vmm.xs.read('',
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'{}/{}/backend-id'.format(dev_basepath, dev)))
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