corrupted double-linked list on free()

Question

I successfully run my code in small data but when i tried large scaled data, it gives me

"corrupted double-linked list:"

In small data, if I delete free() functions, error is disappeared and code works, but in large data whether i put free or not, code gives this error.

Creation of malloc and using free in my code as follows,

int **msgcount = malloc(partnum*sizeof(int*));
for(i=0; i<partnum; i++)
    msgcount[i] = malloc( partnum*sizeof(int));

...lots of code

for(i=0;i<partnum;i++)
{
   free(msgcount[i]);
}

"...lots of code" has the key of your problem – Ing. Gerardo Sánchez Mar 15 '16 at 18:11 — Ing. Gerardo Sánchez, Mar 15 '16 at 18:11

score 1 · Accepted Answer · answered Mar 15 '16 at 19:10

1

This message comes from glibc and means that you faced a memory corruption or you doubly freed the same pointer. Try to run under valgrind and find where's the corruption occurred.

answered Mar 15 '16 at 19:10

ivaigult

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corrupted double-linked list on free()

1 Answers1