Re: Interpreting valgrind info

Hi,

Valgrind is only going to hlpe if you can run your program without crashing. If that's the case, run it on root.exe, not root (yes, also on Linux).

You can run valgrind --tool=massif to see where the memory goes. I recommend to use massif-visualizer (use Google to find ts current location) to analyze its report.

Cheers, Axel.

On 06/01/2012 09:52 AM, Harinder Singh Bawa wrote:
> Hello,
>
> I am running Root code!
> I am getting memory leakage problem in my code which runs for sometime and then crash with the following error:
>
> *********************************************
> Error: Symbol #include is not defined in current scope (tmpfile):1:
> Error: Symbol exception is not defined in current scope (tmpfile):1:
> Syntax Error: #include <exception> (tmpfile):1:
> Error: Symbol G__exception is not defined in current scope (tmpfile):1:
> Error: type G__exception not defined FILE:(tmpfile) LINE:1
> (Long64_t)0
> ***** Interpreter error recovered *****
>
> **************************************************
>
>
> I was suggested to run valgrind and below is the result: Can anybody suggest how to interpret valgrind. What is this suggesting towards!!!
>
>
>
> Val grind info:
> ====================
> --3044 <tel:3044>-- REDIR: 0x6f01c00 (operator delete(void*)) redirected to 0x4c701af (operator delete(void*))
> ==3044 <tel:3044>==
> ==3044 <tel:3044>== HEAP SUMMARY:
> ==3044 <tel:3044>== in use at exit: 88 bytes in 1 blocks
>
>
> ==3044 <tel:3044>== total heap usage: 3 allocs, 2 frees, 276 bytes allocated
> ==3044 <tel:3044>==
> ==3044 <tel:3044>== Searching for pointers to 1 not-freed blocks
>
>
>
> ==3044 <tel:3044>== Checked 201,536 bytes
> ==3044 <tel:3044>==
> ==3044 <tel:3044>== 88 bytes in 1 blocks are still reachable in loss record 1 of 1
>
>
> ==3044 <tel:3044>== at 0x4C70D2D: operator new[](unsigned int) (vg_replace_malloc.c:258)
> ==3044 <tel:3044>== by 0x8049FBA: main (in /nfs/t3nfs/share/atlas/
>
> ATLASLocalRootBase/x86_64/root/5.28.00-slc5-gcc4.3-i686/bin/root)
> ==3044 <tel:3044>==
> ==3044 <tel:3044>== LEAK SUMMARY:
> ==3044 <tel:3044>== definitely lost: 0 bytes in 0 blocks
> ==3044 <tel:3044>== indirectly lost: 0 bytes in 0 blocks
> ==3044 <tel:3044>== possibly lost: 0 bytes in 0 blocks
> ==3044 <tel:3044>== still reachable: 88 bytes in 1 blocks
> ==3044 <tel:3044>== suppressed: 0 bytes in 0 blocks
> ==3044 <tel:3044>==
> ==3044 <tel:3044>== ERROR SUMMARY: 0 errors from 0 contexts (suppressed:
> 30 from 9)
> --3044 <tel:3044>--
> --3044 <tel:3044>-- used_suppression: 30 dl-hack3
> ==3044 <tel:3044>==
> ==3044 <tel:3044>== ERROR SUMMARY: 0 errors from 0 contexts (suppressed:
> 30 from 9)
>
> *******************************************************************************************************
>
>
> Harinder
>
>
Received on Fri Jun 01 2012 - 10:11:41 CEST