The following program receives ECHILD for waitpid when it is run with
`strace -f'. WNOHANG and `-f' are required. I'm not sure if it is
kernel or strace problem. kernel 2.2.14, glibc-2.1.2-11,
strace-3.99.1-2, i686.
#include <sys/types.h>
#include <sys/wait.h>
int main()
{
int st;
int pid;
pid=fork();
if(pid==0)
_exit(0);
if(waitpid(pid,&st,WNOHANG)==-1)
perror("waitpid");
return 0;
}
Alexander.
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