Re: [Valgrind-users] Valgrind malloc problem

[Nicholas N. <n.n...@gm...>]

On Fri, May 15, 2009 at 6:55 AM,  <Pat...@no...> wrote:
>
>  I am using valgrind 3.4.1 to try to find a memory leak. My
> program has an initial routine which allocates a lot of memory -
> around 1 GB. When I run the program by itself it runs fine, however
> when I run it under valgrind, one of the many malloc calls in
> the initial routine fails.
>
> Does anyone know why this would happen? There is plenty of memory
> on the machine (64 GB).

On my x86-64 machine, which has 4GB of RAM, I tested with a trivial
program and was able to malloc up to 8GB successfully.  A 9GB
allocation failed.  So it's not some limit in Valgrind's malloc
implementation;  I don't know what the problem is.

Nick