Qwt liveplot crash

Hi all,
I'm trying to use Qwt to plot accelerometer data @800Hz.
The application work, but it randomly crashes with error `double free or corruption (out)` while allocating data.

I use this code to update the plot:

Code:

---

void DataPlot::updateData( DataType type, QVector<double> ts, QVector<double> data, bool replot)
{    
    mData[type].mCurve->setSamples( ts, data );
 
    if(replot)
        this->replot();
}

---

Where `ts` is the X axis, `data` is the Y axis and `mCurve` is a `QwtPlotCurve` curve.

Any idea or suggestion?

Thank you
Walter

Can you provide the full call stack of the moment of the crash ?

I think you have memory bugs in your program and they are not related to Qwt. Be careful when sharing memory (QVectors ?) between threads. A QVector object can be sent from one thread to another via signals but it isn't thread safe if you use the same instance of it between threads.