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Question asked by Bowe Neuenschwander on Apr 2, 2015
Latest reply on May 1, 2015 by Bowe Neuenschwander

I am seeing an issue that causes the TCP/IP task to crash with "MQX_UNHANDLED_INTERRUPT".  I have installed the unexpected ISR [_int_install_unexpected_isr()], it is says it is vector 0x03, which is a hard fault.  In looking at the call stack in KDS when the hard fault interrupt occurs, there are numerous (at least 50) _isr_execute() instances (namely on the line that calls the actual interrupt handler, which is after an interrupt enable), with nothing in between them and _int_unexpected_isr() at the top.  Is this the cause of the hard fault, is this a KDS bug, or am I seeing something else?