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Advanced Communications Controller B.03.32.00 Release Notes
Patches and Fixes for this Version
Defect/Fix: While doing QIP API047 test, in an erroneous ZTERM PT command (ZPORT
configuration), the returned status was incorrectly reported. E.g., ZPORT status 11 is
reported as “Invalid subchannel number” (which is the status for terminal
configuration request). ZPORT status 11 should be “Mode/baud rate incompatibility”.
zterm uses an incorrect request code in calling x25stat().
•
JAGad21615
Symptoms: System panics with Spinlock Deadlock when running reliability tests.
Defect/Fix: When the system was running out of memory, it would cause nli2zcom to drop
a data packet and issue a reset request on the VC. This particular test caused many resets
and reset confirms to be issued during heavy data transfer loads. The nli2zcom driver
showed that a reset request (or response) was being sent to the DAM at the same time
that an inbound event was arriving from the DAM on the same card. The DAM held the
IFT lock and passed the event to the nli2zcom driver which found the N2Z lock already
held. The N2Z driver locked its spinlock and passed a request to the DAM which found the
IFT lock already held. Thus a classic spinlock deadlock occurred.
The fix is to have the nli2zcom driver drop its lock when issuing a request to the DAM
and then reacquire its lock upon return from the DAM. This was done for both the
outbound Reset Request and Reset Response functions.
•
JAGad24633
Symptoms: zconfig PORTSC enable/disable subchannel has insufficient validation.
Defect/Fix: The zconfig PORTSC for enabling/disabling subchannels did not check for
valid card type and valid subchannel numbers.
The zconfig call to 2-port and 8-port cards returns ok as long as the port number is in
range. The zconfig call to 4-port card accepts all subchannel numbers, including 40.
The LDM should reject the subchannel configuration (for 2,8-port cards) and the illegal
subchannel number for 4-port card with ZCOM error: ZESUBCH (-49, Illegal
subchannel number). All the above problems have been corrected.
•
JAGad31008
Symptoms: MPU activity field in the zmntr mx command shows incorrect value.
Defect/Fix: The zmntr utility can be used to check the status of an ACC MUX. The
command zmntr mx also shows the utilization of the processor on the ACC MUX. With the
development of the TRAU/GPRS protocol, the customer runs some tests, especially load
tests. But the MPU activity with the use of the TRAU/GPRS protocol stays always at 0%.
12
Chapter 1
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