[igt-dev] [PATCH i-g-t] lib: Use nr_open not file-max for setting fd rlimit

[Petri Latvala]

On Mon, Apr 08, 2019 at 10:36:02PM +0100, Chris Wilson wrote:
> Petri pointed out that the maximum allowed number of files per process
> is nr_open, not the system cap of file-max.
> 
> Suggested-by: Petri Latvala <petri.latvala at intel.com>
> Signed-off-by: Chris Wilson <chris at chris-wilson.co.uk>
> Cc: Lucas De Marchi <lucas.demarchi at intel.com>
> Cc: Petri Latvala <petri.latvala at intel.com>

Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=110351
Reviewed-by: Petri Latvala <petri.latvala at intel.com>


> ---
>  lib/igt_aux.c | 2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)
> 
> diff --git a/lib/igt_aux.c b/lib/igt_aux.c
> index 266aa8321..02f4defb6 100644
> --- a/lib/igt_aux.c
> +++ b/lib/igt_aux.c
> @@ -1595,7 +1595,7 @@ bool igt_allow_unlimited_files(void)
>  	struct rlimit rlim;
>  	unsigned nofile_rlim = 1024*1024;
>  
> -	FILE *file = fopen("/proc/sys/fs/file-max", "r");
> +	FILE *file = fopen("/proc/sys/fs/nr_open", "r");
>  	if (file) {
>  		igt_assert(fscanf(file, "%u", &nofile_rlim) == 1);
>  		igt_info("System limit for open files is %u\n", nofile_rlim);
> -- 
> 2.20.1
>