well signals are a way the os can notify process of some event.. they can
be ignored, or caught, either by a signal handler you write or the default
os one (which is generalyl to kill the process)..
sigalrm is like an alarm clock.. you set it with a time and when that has
expired your proc gets a sigalrm and the approp. handler gets called..
i dont know in your specific cause.. i didnt look closely at your log, but
its not out of the ordinary for a programmer to use sigalarm.. i wouldnt
be worried about it.
aaron
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