Dear All
I have a C based application, it runs fine.

I wanted to do memory leak check.

I checked memory leak (using Valgrind 3.10.1 in a Ubuntu 12.04 LTS machine).

Valgrind is really helpful. It helped me to great extent to fix memory
leaks, uninitialized sections etc.


Now I see some leaks (possible leaks) but stack it shows is empty one
something as below.

==28501==
==28501== 5 bytes in 1 blocks are indirectly lost in loss record 32 of 152
==28501==    at 0x402CFC7: malloc (vg_replace_malloc.c:296)
==28501==    by 0x40C48E7: ???
==28501==    by 0x40B7B7F: ???
==28501==    by 0x40E4830: ???
==28501==    by 0x40E4BC7: ???
==28501==    by 0x406FEAF: ???
==28501==    by 0x406C4EF: ???
==28501==    by 0x406AA9E: ???
==28501==    by 0x406489F: ???
==28501==    by 0x40646C9: ???
==28501==    by 0x4A2CE99: start_thread (pthread_create.c:308)
==28501==
==28501== 7 bytes in 1 blocks are indirectly lost in loss record 33 of 152
==28501==    at 0x402CFC7: malloc (vg_replace_malloc.c:296)
==28501==    by 0x40AF985: ???
==28501==    by 0x40AE2A1: ???
==28501==    by 0x40ADB1B: ???
==28501==    by 0x40ADAAC: ???
==28501==    by 0x40C3B24: ???
==28501==    by 0x40BDAE2: ???
==28501==    by 0x40BDFA7: ???
==28501==    by 0x40BE6F2: ???
==28501==    by 0x40BF290: ???
==28501==    by 0x40BF483: ???
==28501==    by 0x40E63C0: ???
==28501==

My query is, why stack trace is empty. In such situations how do I catch
where from problem origins.

Many thanks.

Austin
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