Mq-qwrite error – Dell PowerVault 51F (8P Fibre Channel Switch) User Manual

Page 145

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Error Messages

A-7

MQ-QWRITE Error

The software includes several message queues that are used for inter-task communi-
cation. Each queue holds a maximum of 64 messages. Under normal operations, a
task sends a message to another task on a queue, and occupies a slot in the queue.
After the message is received, its slot in the queue is open for another message.

If the receiving task does not run for a period of time, and the sender task sends more
than 64 messages to the same queue before the first message is processed by the
receiving task, the queue overflows and the message is discarded. This event causes
the

MQ-QWRITE

error to be printed on the display, as well as on the Telnet window, if

open. The error is also stored in the error log which can be viewed with the errShow
command.

NOTE: The error log is cleared upon reboot.

There may be several reasons for this error. In some cases, the system may recover
without human intervention, however in most cases it will not. In some cases, the
error can even indicate a task crash.

These problems can be diagnosed by technical support provided enough information
is collected to allow a detailed analysis of the specific case.

The MQ-QWRITE error message is shown in Figure A-2 (the front panel displays an
abridged version of the message).

TASKSPAWN (0)

A task could not be
created.

Issue the traceShow command.
Contact customer support.

TIMEUSECNT (0)

A timer was not
released after
expiration.

Issue the traceShow command.
Contact customer support.

ZOMTIMKILL (0)

An attempt was
made to kill a timer
that was in ‘zombie’
state.

Issue the traceShow command.
Contact customer support.

ZOMTIMSET (0)

An attempt was
made to set a timer
that was in ‘zombie’
state.

Issue the traceShow command.
Contact customer support.

Table A-2. Panic Errors (continued)

Error

Severity

Explanation

Action

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