ulimit not working properly

i am trying to limit the memory usage of a process using ulimit

ulimit -Sv 100000
ulimit -St 10
fakechroot ./compiledfile

i am running the command in the same terminal (i am using ubuntu 16.04) and the source code of compiled file is

#include<stdio.h>
int main()
{
    while(1)
    {
        malloc(110000000);
        pf("allocated : %d\n",i);
    }
    return 0;
}

the process should get terminated because of memory limit..but it is running till the timelimit end.I don't understand why. I am novice,pardon me if the question is silly..any help or suggestion is appreciated..thanks

mursalin

Posted 2017-06-11T16:50:32.593

Reputation: 1

Not sure, but does fakechroot create a new process? ulimit only affects the current process. You could try running a script with ulimit and your ./compiledfile inside fakechroot – Joe P – 2017-06-11T17:15:21.083

@joe P i have tried without fakechroot ( ./compiledfile ) bt no change – mursalin – 2017-06-11T17:21:55.513

1You should check the return value of malloc. It will return NULL when allocation fails due to memory limit or other reason. – x22 – 2017-06-13T12:09:41.647

ulimit not working properly

No answers