Re: [PATCH 4/5] selftests/resctrl: Kill the child process before exiting the parent process if an exception occurs

[Reinette Chatre]

Hi Shaopeng,

On 9/13/2022 6:51 PM, Shaopeng Tan wrote:

...

> @@ -218,11 +219,11 @@ int cat_perf_miss_val(int cpu_no, int n, char *cache_type)
>  			}
>  		}
>  		close(pipefd[0]);
> -		kill(bm_pid, SIGKILL);
>  	}
>  
> -	if (bm_pid)
> -		umount_resctrlfs();
> +out:
> +	kill(bm_pid, SIGKILL);
> +	umount_resctrlfs();
>  

>From what I can tell both parent and child will now run this code. So
both will attempt to unmount resctrl fs and the child will attempt
to kill PID 0?

Reinette