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How can I use Valgrind to determine the source of "still-available" memory leak?


By : Walker LIU
Date : October 17 2020, 06:10 AM
wish help you to fix your issue I have a program I wrote whose memory footprint grows over time. It eventually consumes all of the available system memory and then crashes the system. , Use the options
code :
   --leak-check=full --show-leak-kinds=all


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Why doesn't valgrind detect a memory leak in my "test" program?


By : Ian Franco
Date : March 29 2020, 07:55 AM
this will help The entire test code is contained in main.cpp as follows: , The reason this happened is that the call to:
code :
valgrind --leak-check=yes test
valgrind --leak-check=yes ./test

Valgrind does not report memory leak on "delete array"


By : kirankumar
Date : March 29 2020, 07:55 AM
seems to work fine using delete without [] causes memory leak.
No, it causes Undefined Behavior.

suppression "dl-hack3-cond-1" in memory leak detection using valgrind


By : hary hary
Date : March 29 2020, 07:55 AM
it helps some times I am using valgrind to detect memory leaks. the output from valgrind is generated by command , That suppression certainly exists for me in my default.supp:
code :
$ grep dl-hack $(locate default.supp | grep /usr)
   dl-hack3-cond-0
   dl-hack3-cond-1
   dl-hack3-cond-2
   dl-hack3-cond-3
   dl-hack3-cond-4
   dl-hack4-64bit-addr-1
   dl-hack4-64bit-addr-2
   dl-hack4-64bit-addr-3
   dl-hack5-32bit-addr-1
   dl-hack5-32bit-addr-3
   dl-hack5-32bit-addr-4

Memory leak when using "X11/Xutil.h" library to read pixels (with valgrind output)


By : Sen
Date : March 29 2020, 07:55 AM
wish helps you I am trying to get a pixel from the screen using the X11/Xutil library, but, according to valgrind, there seems to be a memory leak in the code: , Use XDestroyImage(image) instead of XFree(image)

Valgrind has reported "memory leak" when I compiled my program with "-pg" enabled?


By : Jaysp656
Date : March 29 2020, 07:55 AM
this will help Valgrind FAQ:
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