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malloc fails beyond 125MB in a C program

  • 1.  malloc fails beyond 125MB in a C program

    Posted Thu February 09, 2023 09:44 AM

    Hi,

    This is a very basic question. I wrote a basic C program that malloc()s an array and accesses elements from it. And then free()s all the elements.

    However, malloc() call fails if the allocation request is over 125MB.

    I have set "unlimited" to all the parameters related to memory allocation (e.g., stack size, heap size) under the "ulimit" command. But it does not solve the problem.

    I'm running the C program on a Power9 VM. The same program runs absolutely fine on a Linux-based system.

    If somebody could help me with this, that'll be great. Thanks.



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    Muhammad Laghari
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