Ronnie Sahlberg 5532325042 Test-tool: call iscsi_service on MP devices once every second so we respond to NOP ...

The test tool is simplistic and uses the synchronous API. In this API
we will only poll() the socket and process events during the lifetime of any
iscsi_*_sync() calls.

A problem with this approach arises with multipath tests. When iscsi-test-cu
is used with multiple devices we will first open a session for each
multipath leg, but then as most tests are only using the first device we end
up with creating secondary sessions we don't do any iscsi_*_sync() calls on
for very long times. If a target is set up to send NOPs on these
secondary paths it will not get any responses and eventually tear down the
connection.

To avoid this, try to make sure we service any secondary paths we have
created by calling iscsi_service(POLLIN|POLLOUT) every few seconds
to make sure we do service and respond to any NOPs.

Signed-off-by: Ronnie Sahlberg <ronniesahlberg@gmail.com>

2015-12-15 21:55:03 -08:00

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