topic Re: memory leak bug in Linux in Intel® Integrated Performance Primitives

memory leak bug in Linux

ramirose1 — Sun, 13 Mar 2005 18:40:54 GMT

Hello,
I suspect there is a memory leak bug in
Intel IPP libraries in Linux.

What I did is:

Download ipp41 evaluation for linux.
Download and build the g729 samples for linux.

Ran the sample with a very known memory checker (valgrind) like thus:

valgrind ./g729iencoder --leak-check=yes --show-reachable=yes in.snd decoded.out

==8732== ERROR SUMMARY: 0 errors from 0 contexts (suppressed: 4 from 1)
==8732== malloc/free: in use at exit: 5065 bytes in 12 blocks.
==8732== malloc/free: 20 allocs, 8 frees, 40752 bytes allocated.

What seems to me is that 2065 bytes were not freed ,
and it seems that there is some bug as something is not freed inside Intel IPP library. (It could be also
that something is not freed in Intel g729 sample code ,but this seems less likely to me).

Note that is says that there were 20 allocs but only 8 frees !

I want to emphasize that I did not change a thing in
Intel g729 samples and build the using the script
supplied with them (build.sh).

This prevents me from using the Intel IPP for
an IVR server which runs in heavy loads , performing
many calls to g729 encode, because after a time
(depending on the load) we're out of memory and the systems hangs.

Regards,
Rami

Re: memory leak bug in Linux

Vladimir_Dudnik — Fri, 18 Mar 2005 06:27:12 GMT

Hi Rami,

thanks for informing us about issue. Could you please tell which platform do you use? Is it IA32, EM64T, IA64 or PCA?

Regards,

Vladimir

Re: memory leak bug in Linux

ramirose — Fri, 18 Mar 2005 23:51:40 GMT

Hello,
1) The platform I use is IA32.

2) Since this issue was urgent,I issued a BUG REPORT
in intel premium support; However,if anyone knows abut this
memory leak problem I will appreciate sharing the info
with us. Up till now, the problem of memory leakage is not solved
as I understand.

Regards,
Rami

Re: memory leak bug in Linux

rafael_alapont — Tue, 12 Jul 2005 22:55:13 GMT

Hello,

does anyone know if this memory leak problem has been solved?

Where can I get the patch?

Thank you

Rafael