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[Assaf Muller <amuller@xxxxxxxxxx>]

Public bug reported:

neutron/agent/linux/ovs_lib:ofctl_arg_supported executes an ovs-ofctl
command and catches the general Exception, concluding that the feature
is not supported. However, unexpected exceptions may be raised,
swallowed and never logged. So, for example, if an OVS agent starts up
and arp_responder is True, then the capabilities test for it may fail in
an unexpected way. The result is that arp_responder will not be
supported, the agent will start and the exception will not be printed,
masking a potential bug.

** Affects: neutron
     Importance: Undecided
     Assignee: Assaf Muller (amuller)
         Status: New

** Changed in: neutron
     Assignee: (unassigned) => Assaf Muller (amuller)

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https://bugs.launchpad.net/bugs/1323718

Title:
  OVS capabilities test failure masks exception

Status in OpenStack Neutron (virtual network service):
  New

Bug description:
  neutron/agent/linux/ovs_lib:ofctl_arg_supported executes an ovs-ofctl
  command and catches the general Exception, concluding that the feature
  is not supported. However, unexpected exceptions may be raised,
  swallowed and never logged. So, for example, if an OVS agent starts up
  and arp_responder is True, then the capabilities test for it may fail
  in an unexpected way. The result is that arp_responder will not be
  supported, the agent will start and the exception will not be printed,
  masking a potential bug.

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