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Description of problem:
If an application forks more than once, the processes beginning with the  seconf
fork and on will not show up in the ps -ef  output. They do show up in the ps
-efm output. Specifying ps -p $pid_num will also display the correct
information. The proc filesystem DOES have the correct information for the
missing processes.

The following program can be used to reprod

Version-Release number of selected component (if applicable):
procps-2.0.7

How reproducible:
Always

Steps to Reproduce:
1. Compile the following program. gcc -o pid_test pid_test.c

#include <stdio.h>
#include <unistd.h>
#include <sys/types.h>


int main()
{
  pid_t pid;

  pid = fork();
  if(pid == 0)
    {
      sleep(10000);
      exit(0);
    }

  printf("Child1 pid == %d\n",pid);

  pid = fork();
  if(pid != 0)
    {
      printf("Child2 pid == %d\n", pid);
    }

  sleep(10000);

  return 0;

}

2. Run the program: ./pid_test

3. ps -ef | grep pid_test





Actual Results:  You will only see listing for two instances of pid_test.

run the following command: ps -efm | grep pid_test
and you will see all three processes.

Expected Results:  all three processes should be listed. The fork call should
not prodice a light-weight process.

Additional info: