ippiFilter_32f_C1R - when used in static lib causes crash

We seeing consistent crash due to invalid memory access when using ippiFilter_32f_C1R, linking as static lib when called from multiple threads.

Pointers:

- Project is static linking IPP 7.0 library.
- ippiFilter_32f_C1R is used for sharpening images.
- there can be 100-5000 or more images, which are streamed and this method is called from multiple thread to sharpen each image individually.
- ippStaticInit is called at start.
- ippGetNumThreads returns 8, as i have 8 Core CPU. this is even happening for other cores configuration higher or lower.
- ROI provided - takes care of boundary assumption which IPP filter function needs.
-

Observation
- There is spike in kmp_launc_worker threads, waiting for instruction.
- multiple calls (serial or threaded) into ippiFilter_32f_C1R are resulting into more number of IPP threads getting created waiting, and at random point results in crash inside IPP.
- Diabling parallization fixes this issue - ippSetNumThreads(1).

is my issue something to do with Avoiding Nested Parallelization.
http://nf.nci.org.au/facilities/software/intel-ct/12.0.4.191/Documentati...

Image are 16bit per pixel monochrome images, so call sequence is like.

int imageSize =  m_Width* m_Height;

    Ipp32f *pSrc = new Ipp32f[imageSize];
    Ipp32f *pDst = new Ipp32f[imageSize];

    16bitData2IppImage(PixelData,  pSrc);

    const int kernelWidth = m_kernel->Width();
    const int kernelHeight = m_kernel->Height();

    const int kernelHalfWidth = kernelWidth/2;
    const int kernelHalfHeight = kernelHeight/2;

    int srcStep = format->m_Width*sizeof(Ipp32f);
    int dstStep = format->m_Width*sizeof(Ipp32f);

    IppiSize dstRoiSize =  {format->m_Width - 2*kernelHalfWidth, format->m_Height - 2*kernelHalfHeight};
    IppiSize kernelSize = {kernelWidth, kernelHeight};

    IppiPoint anchor = {kernelHalfWidth, kernelHalfHeight};
    int firstPixGap = format->m_Width*kernelHalfHeight + kernelHalfWidth;

    Ipp32f* pKernel = new Ipp32f[kernelWidth*kernelHeight];

    Matrix2IppKernel(m_kernel, pKernel); //function to copy internal matrix value to IPP float matrix.

    IppStatus stat = ippiFilter_32f_C1R(pSrc + firstPixGap, srcStep,
                                           pDst + firstPixGap, dstStep, dstRoiSize,
                                           pKernel, kernelSize, anchor);
    ASSERT(stat == ippStsNoErr);

    IppImage216bitData(data, pDst);