Hi all, There is a divide by 0 problem in 4bitle. In LinkEstimatorP.nc, the function updateNeighborEntryIdx() calls updateNeighborTableEst() if rcvCnt + failCnt >= BLQ_PKT_WINDOW. This means that updateNeighborTableEst() can be called if rcvCnt = 0. Well, if this is the first call and we missed the first BLQ_PKT_WINDOW packets i.e. failCnt = BLQ_PKT_WINDOW, remember that inQuality is initialized to 0, then the calculations in updateNeighborTableEst() will reveal inQuality = 0, which will lead to divide by 0 problem when computeETX() is called.
Regards Islam Hegazy
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