Unix Programming - excess allocation in heap segment of a process

This is Interesting: Free IT Magazines  
Home > Archive > Unix Programming > April 2007 > excess allocation in heap segment of a process





You are viewing an archived Text-only version of the thread. To view this thread in it's original format and/or if you want to reply to this thread please [click here]

Author excess allocation in heap segment of a process
sam_cit@yahoo.co.in

2007-04-25, 7:19 am

Hi Everyone,

We all know that when the stack segment overflows, we get a error
saying stack overflow and the program terminates. A main() calling
itself recursivley results in this,

What happens when the heap segment overflows? when we keep on
allocating dynamic memory in a loop...

Thanks in advance!!!

Logan Shaw

2007-04-26, 1:18 am

sam_cit@yahoo.co.in wrote:
> We all know that when the stack segment overflows, we get a error
> saying stack overflow and the program terminates. A main() calling
> itself recursivley results in this,
>
> What happens when the heap segment overflows? when we keep on
> allocating dynamic memory in a loop...


Why would you keep on trying to allocate memory when you are
checking the return value from malloc() (or whatever) and it is
telling you there is no more memory left to allocate?

At any rate, I suppose what would happen is that you would end
up wasting a lot of CPU time.

- Logan
Bin Chen

2007-04-26, 1:18 am

On Apr 25, 6:27 pm, sam_...@yahoo.co.in wrote:
> Hi Everyone,
>
> We all know that when the stack segment overflows, we get a error
> saying stack overflow and the program terminates. A main() calling
> itself recursivley results in this,
>
> What happens when the heap segment overflows? when we keep on
> allocating dynamic memory in a loop...
>
> Thanks in advance!!!


I think the correct behavior is malloc() returns NULL.

Sponsored Links






Free braindumps | Software forum | Database administration forum

Copyright 2003 - 2008 webservertalk.com