UMDH Logs (Memory Leak on Windows)

Question

Hi,

I am using UMDH tool to analyze the memory leaks of my application.

The top leaks observed by UMDH logs are as follows:

• 237856226 ( 241016812 - 3160586) 3704833 allocs BackTraceE9

• 3685198 ( 3704833 - 19635) BackTraceE9 allocations
  ntdll!RtlIpv4StringToAddressExW+00011866
  ntdll!RtlSubAuthorityCountSid+00000019
  MSVCR80!malloc+0000007A

• 207093760 ( 207355904 - 262144) 791 allocs BackTrace6EB

• 790 ( 791 - 1) BackTrace6EB allocations
  ntdll!RtlIpv4StringToAddressExW+00011866
  ntdll!RtlSubAuthorityCountSid+00000019
  php5ts!zend_register_internal_class_ex+000001A5

I have built my application in debug mode and specified the PDB files in the _NT_SYMBOL_PATH. But I am still unable to see the stack trace from my application. For example in the above log "MSVCR80!malloc+0000007A" malloc is being called , but no idea from which part of my application.

What extra configuration is required so that debug symbols will be visible in the UMDH logs?

Thanks,

Answer 1

This is a terrible oversight on Microsoft's part. Here are the details. You are basically out of luck with this version of Microsoft's CRT library.