On Sun, Oct 09, 2011 at 07:42:28PM -0700, K. Y. Srinivasan wrote:

Invoke cn_netlink_send() in a work context as opposed being called
in the context of  channel callback. On entry into the channel callback
code the channel inbound spin lock is held and deferring to a work
context avoids having to invoke cn_netlink_send() while holding
the inbound lock. As part of this adjustment, also increase the
timeout value for waiting for the user level component of KVP.

As told a few times you really need to move away from the connector
before sumitting the KVP support.  What about tackling that instead of
band aiding it?