If we fail to get the system limit for max_fds we should assume a safe value of 4096. Signed-off-by: Hannes Reinecke <hare@xxxxxxx> --- libmultipath/dict.c | 15 ++++++++++++--- 1 file changed, 12 insertions(+), 3 deletions(-) diff --git a/libmultipath/dict.c b/libmultipath/dict.c index 6a58fa2..4b840de 100644 --- a/libmultipath/dict.c +++ b/libmultipath/dict.c @@ -290,18 +290,27 @@ static int max_fds_handler(vector strvec) { char * buff; - int r = 0; + int r = 0, max_fds; buff = set_value(strvec); if (!buff) return 1; + r = get_sys_max_fds(&max_fds); + if (r) { + /* Assume safe limit */ + max_fds = 4096; + } if (strlen(buff) == 3 && !strcmp(buff, "max")) - r = get_sys_max_fds(&conf->max_fds); + conf->max_fds = max_fds; else conf->max_fds = atoi(buff); + + if (conf->max_fds > max_fds) + conf->max_fds = max_fds; + FREE(buff); return r; @@ -2571,7 +2580,7 @@ snprint_max_fds (char * buff, int len, void * data) return 0; r = get_sys_max_fds(&max_fds); - if (!r && max_fds == conf->max_fds) + if (!r && conf->max_fds >= max_fds) return snprintf(buff, len, "\"max\""); else return snprintf(buff, len, "%d", conf->max_fds); -- 1.7.10.4 -- dm-devel mailing list dm-devel@xxxxxxxxxx https://www.redhat.com/mailman/listinfo/dm-devel