I m facing problem with this code . When I execute this program it forks 2 process A zombie syslog-ng process on the forked ID syslog-ng on the next pid but without while loop every thing is working properly TIA niraj #include<iostream> #include<unistd.h> using namespace std; int main() { int cpid; cpid=fork(); if(cpid==0) { if(execv( "/usr/local/sbin/syslog-ng" ,NULL)==-1) { cout<<"hello"<<endl; } cout<<"ok"<<endl; } while(1) { ; } return 0; } ~ ~