topic Segment violation ipp_zlib in Intel® Integrated Performance Primitives

Segment violation ipp_zlib

alexey_stetsenko — Wed, 17 Nov 2010 14:24:38 GMT

Hi, we are using ipp_zlib (IPP 6.1 build 137.53) for our project to read/write the PNG images. Sometimes it produces Segment violation (SIGSEGV) exception by read image at the point ipp_zlib->inflate on PC with 6 CPUs (Intel Xeon CPU X5650 @2.67GHz). It could be good reproduce if more than one thread (at least 4 Threads) simultaneous try to read image. Is somebody knows this issue?

Segment violation ipp_zlib

Gennady_F_Intel — Wed, 17 Nov 2010 15:35:41 GMT

Alexey, this is an unknow issue for ipp_zlib.

Could you give us the example?

--Gennady

Segment violation ipp_zlib

alexey_stetsenko — Wed, 17 Nov 2010 16:09:21 GMT

Gennady, yes, the attached zip-file contains test.bat file. If you need source i can also upload it. Thank you in advance.

Strange, i could not upload zip file..., now it's Ok. In Test folder is test_ipp_zLib.zip file.

Segment violation ipp_zlib

Ying_S_Intel — Wed, 17 Nov 2010 16:45:28 GMT

Alexey,

Have you tried the latest version Intel IPP 7.0 and see if this issue is still reproducible?

If you have valid product license, you can go to Intel Registration Center at https://registrationcenter.intel.com to find the latest package, or try the evaluation version at Intel Evaluation Center at http://software.intel.com/en-us/articles/intel-software-evaluation-center/

Thanks,

Ying

Segment violation ipp_zlib

alexey_stetsenko — Wed, 17 Nov 2010 17:15:20 GMT

Ying,

we have only license for IPP 5 and 6 versions. I will ask our manager to buy a new one.

With old IPP 5.2 version our software is stable.

Segment violation ipp_zlib

Gennady_F_Intel — Thu, 18 Nov 2010 04:28:50 GMT

Alexey,

I see no file attached into this thread.

Could you please look at this topic "How to attach file to Forum post".

--Gennady

Segment violation ipp_zlib

alexey_stetsenko — Thu, 18 Nov 2010 07:42:09 GMT

Gennady,

Now it should be Ok.

----------------

maybe it will be useful:

0:013> gh
(244.fd0): Access violation - code c0000005 (first chance)
First chance exceptions are reported before any exception handling.
This exception may be expected and handled.
eax=00000001 ebx=00000000 ecx=00000254 edx=0000001f esi=01274fff edi=011cd5b2
eip=009dd897 esp=0139fc7c ebp=011f4f00 iopl=0 nv up ei ng nz na pe cy
cs=001b ss=0023 ds=0023 es=0023 fs=003b gs=0000 efl=00010287
*** ERROR: Symbol file could not be found. Defaulted to export symbols for C:\Program Files\MIPS\Ipp-6.1\ippdcp8-6.1.dll -
ippdcp8_6_1!ippsVLCEncodeOne_16s1u+0x35cb:
009dd897 0f6e0e movd mm1,dword ptr [esi] ds:0023:01274fff=????????
0:004> kp
ChildEBP RetAddr
WARNING: Stack unwind information not available. Following frames may be wrong.
0139fcd8 009cfacf ippdcp8_6_1!ippsVLCEncodeOne_16s1u+0x35cb
0139fe5c 10002d26 ippdcp8_6_1!ippsInflate_8u+0xad3
0139feb8 1001531e ImagePNG_6_1!png_read_row(struct png_struct_def * png_ptr = , unsigned char * row = , unsigned char * dsp_row =.......

Segment violation ipp_zlib

alexey_stetsenko — Mon, 22 Nov 2010 08:02:00 GMT

Gennady,

Do you have any news about this issue?

Segment violation ipp_zlib

Gennady_F_Intel — Tue, 23 Nov 2010 10:11:20 GMT

Alexey,

Actually, it seems to us we need more details from you.

We tried to check on problem on our side and all works fine with the latest IPP 6.1 update 5 and 6.

How long the test should works?

on my side,

the test was working for 20 minutes on my local Core2Duo and nothing happened...

Could you please elaborate more about the System and CPU you are working on?

May I ask you to incorporateippsGetLibVersion function into this test and provide the output of this function?

--Gennady

Segment violation ipp_zlib

alexey_stetsenko — Tue, 23 Nov 2010 11:35:08 GMT

Gennady,
It can be happened after 10 Seconds. On my PC with CPU Intel Core i7 4 cores, I could not reproduce it, but our software will be running on target PC with 6 or more CPUs. The test, which has this exception, was reproduced on the Intel Xeon CPU X5650 @ 2.67GHz with 6 cores OS: Winows XP ProfessionalSP 3, and I saw also it on PC with 8 cores.

ippsGetLibVersion:
Name:ippsp8-6.1.dll+

Version:6.1.137.844
Build Date:Jan 23 2010
Version:6.1 build 137.53
Target CPU:p8

Segment violation ipp_zlib

Gennady_F_Intel — Tue, 23 Nov 2010 12:27:30 GMT

ok, thanks for the update. We will check and back to you asap.

--Gennady

Segment violation ipp_zlib

alexey_stetsenko — Tue, 23 Nov 2010 13:41:02 GMT

i was able to reproduce it on my PC in Virtual Mode, pleasesee attached image. In Src.zip is TestIppZLibCon project. Strangely, it still works without exception in original OS!

Segment violation ipp_zlib

Vladimir_Dudnik — Tue, 23 Nov 2010 17:49:52 GMT

As I see you still use IPP 6.1. Is there any chance for you to try the latest version, which is IPP 7.0? There were some bug fixes in data compression samples and functions

Regards,
Vladimir

Segment violation ipp_zlib

alexey_stetsenko — Wed, 24 Nov 2010 10:35:23 GMT

Vladimir,

For IPP 7.0 result is same, please see attachment.

Segment violation ipp_zlib

Gennady_F_Intel — Fri, 26 Nov 2010 12:28:10 GMT

Hi Alexey

Thanks for your problem you raised.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: DPD200199464.

Regards, Gennady

Segment violation ipp_zlib

Gennady_F_Intel — Thu, 10 Feb 2011 13:21:58 GMT

Hi Alexey,

IPP 7.0 Update 2 is available now,the issue should be fixed in the vesion. please refer to bleow information to get more information

Version 7.0.2 of the Intel Integrated Performance Primitives (Intel IPP) library is now available. The library is available as astand-alone productor as a component inIntel Parallel Studio 2011,Intel Parallel Studio XE 2011,Intel C++ Studio XE 2011,Intel Composer XE 2011, andIntel C++ Composer XE 2011. Please visit theIntel Software Evaluation Centerto download evaluation versions of these and other Intel software products.

What's New in 7.0.2

Additional optimizations for the256-bit Intel AVXSIMD instruction set.
FurtherIntel Atom Processor optimizationshave been incorporated.
Data compression gains of ~2x via a redesign of the "Inflate for Fixed Huffman" algorithm.
Cryptography improvements include 1.4x faster "sign verify" and a 2x faster ippsMontForm() function.
The ipp_zlib library is now based on the zlib 1.2.5 distribution.
Review a complete listof changes, bug fixes and new features on-line.

--Gennady

Segment violation ipp_zlib

alexey_stetsenko — Fri, 11 Feb 2011 00:37:48 GMT

Hi Gennady,

Thank you for the update.

Best regards,

Alexey.