Unix Programming - Heap memory allocation (over 2x MB ) failure issue

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Author

Heap memory allocation (over 2x MB ) failure issue

itsolution@gmail.com

2007-12-30, 8:07 am

I got an issue with a network device running BSD(6.x)
That device has enough memory(over 512MB).
But, in a process, I tried to allocate a heap memory to be used for
memory pool.
But, malloc(1024 * 20000) is ok but malloc(1024 * 25000 or above)
always fails.
Looks like due to ulimit issue or similar limit ... right?
How do I find whether some limit is set in this BSD?

To work around this unexpected limitation, I try to use global static
memory instead of heap memory.
So, when implementing a memory pool of having 30MB or so,
using global static memory instead of using heap is the better
way ?

thanks

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