message: Fix possible FPE in debug output, reset chi2 to zero in case it became nan before, and make sure fNDF is nonzero when aborting (even if it is zero) to avoid division by zero in code which actually changes nothing but is still executed leading to FPE...
diff: @@ -57,7 +57,12 @@ GPUd() void AliHLTTPCGMTrackParam::Fit
  float ex1i = 0;
  if (PropagateTrack(PolinomialFieldBz, x[ihit], y[ihit], z[ihit], alpha[ihit], rowType[ihit], param, N, Alpha, maxSinPhi, UseMeanPt, first, par, t0, dL, ex1i, trDzDs2))
  {
  - if (first) for (int i = 0;i < 15;i++) fC[i] = 0;
  + if (first)
  + {
  + for (int i = 0;i < 15;i++) fC[i] = 0;
  + fChi2 = 0.;
  + fNDF = 1;
  + }
  break;
  }
  if (first == 0)
  