topic Segmentation Fault from ippsFIRMRInitAlloc_32fc in Intel® Integrated Performance Primitives

Segmentation Fault from ippsFIRMRInitAlloc_32fc

kristinmj — Tue, 08 Mar 2011 15:46:15 GMT

When using the ippsFIRMRInitAlloc_32fc function I have found that for large interpolation, decimation and filter length values the function results in a segmentation fault. It seems to me that if there are size limitations, the function should fail more gracefully. I'm wondering if anybody else has encountered this problem or if, perhaps, I'm calling the function wrong or failing to perform certain necessary checks.

The following code snippit reliably fails every time I run it:

//*****************************************************************
#include
#include
#include

using namespace std;

int main() {

// It will also fail for other values of taps_len and for other
// interpolation/decimation values.

int L = 24009;
int M = 22795;

int taps_len = 435123;

int upPhase = 0;
int downPhase = 0;

Ipp32fc* pTaps = new Ipp32fc[taps_len];

Ipp32fc* pDlyLine = NULL;

IppStatus status = ippStsNoErr;

IppsFIRState_32fc* pState;

status = ippsFIRMRInitAlloc_32fc(&pState, pTaps, taps_len, L, upPhase, M, downPhase, pDlyLine);

if(status != ippStsNoErr) cout << "IPP STATUS ERROR!\\n" << flush;

delete[] pTaps;

}
//*************************************************************************

Any comments or suggestions are much appreciated.

Cheers,
-Kristin

Segmentation Fault from ippsFIRMRInitAlloc_32fc

Gennady_F_Intel — Tue, 08 Mar 2011 18:11:11 GMT

Kristin,

there are no size limitations with this function.I checked your code with version 6.1 u5, win32.

ippsFIRMRInitAlloc_32fc returns ippStsNoErr.

Can you give us more details (OS, architecture, IPP version) for reproducning the problem?

--Gennady

Segmentation Fault from ippsFIRMRInitAlloc_32fc

kristinmj — Tue, 08 Mar 2011 19:22:52 GMT

Gennady,

Thank you for your reply. We are running on Red Hat Linux

Some specifics:

The problem occurs for:
Intel Compiler Suite 12.0.2
IPP 7.0
Kernel: 2.6.18-128.el5PAE

We are able to run the code successfully for:
Intel Compiler Suite 11.1.073
IPP 6.1.6.063 (l_ipp_ia32_p_6.1.6.063)
Kernel: 2.6.18-1.2801.mastodonPAE

-Kristin

Segmentation Fault from ippsFIRMRInitAlloc_32fc

Gennady_F_Intel — Thu, 10 Mar 2011 11:07:55 GMT

Kristin,

Thanks for the update. I reproduced the segmentation.This issue has been submitted to our internal development tracking database for further investigation, we will inform you once a new update becomes available.Here is a bug tracking number for your reference: 200207720.

I will back to you as soon as any update from the owner of the code.

--Gennady

Segmentation Fault from ippsFIRMRInitAlloc_32fc

Gennady_F_Intel — Wed, 07 Sep 2011 05:32:01 GMT

Kristin,

please check the problem with the latest versin of IPP 7.0 update 5 which is now available and let us know the results.

--Gennady

Segmentation Fault from ippsFIRMRInitAlloc_32fc

kristinmj — Wed, 07 Sep 2011 18:15:52 GMT

Gennady,
I installed the updates, ran my test code and the problem is corrected.
Thank you for your help.
-Kristin