[CRIU] [PATCH 12/17] restore: set PR_SET_DUMPABLE to have access to proc files

Pavel Emelyanov xemul at parallels.com
Thu Nov 6 03:45:38 PST 2014


On 10/31/2014 01:14 PM, Andrey Vagin wrote:
> It is cleared when a process is forked in a new userns.
> 
> Signed-off-by: Andrey Vagin <avagin at openvz.org>
> ---
>  cr-restore.c | 5 +++++
>  1 file changed, 5 insertions(+)
> 
> diff --git a/cr-restore.c b/cr-restore.c
> index cdd5dce..e68a906 100644
> --- a/cr-restore.c
> +++ b/cr-restore.c
> @@ -1370,6 +1370,11 @@ static int init_userns_creads()
>  		return -1;
>  	}

Plz, add a comment here describing (in details) why we need this here.

> +	if (prctl(PR_SET_DUMPABLE, 1, 0)) {
> +		pr_perror("Unable to set PR_SET_DUMPABLE");
> +		exit(1);
> +	}
> +
>  	return 0;
>  }
>  
> 



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