Hi Sam!
Will's patch included below (or anything similar that adds the ability
to tweak realtime settings) is quite central to many multimedia
applications. For one of my packages, it determines the default
configuration I intend to ship with etch. So could you please comment
whether you think this feature will be available in time for etch?
Thanks,
Daniel.
On Wed, Sep 28, 2005 at 08:58:13PM -0400, Will Dyson wrote:
> diff -ru pam-0.79/Linux-PAM/modules/pam_limits/pam_limits.c
> pam-0.79.rtlimit/Linux-PAM/modules/pam_limits/pam_limits.c
> --- pam-0.79/Linux-PAM/modules/pam_limits/pam_limits.c 2005-09-27
> 21:11:36.000000000 -0400
> +++ pam-0.79.rtlimit/Linux-PAM/modules/pam_limits/pam_limits.c
> 2005-09-28 20:43:01.000000000 -0400
> @@ -327,6 +327,14 @@
> else if (strcmp(lim_item, "msgqueue") == 0)
> limit_item = RLIMIT_MSGQUEUE;
> #endif
> +#ifdef RLIMIT_RTPRIO
> + else if (strcmp(lim_item, "rt_prio") == 0)
> + limit_item = RLIMIT_RTPRIO;
> +#endif
> +#ifdef RLIMIT_NICE
> + else if (strcmp(lim_item, "nice") == 0)
> + limit_item = RLIMIT_NICE;
> +#endif
> else if (strcmp(lim_item, "maxlogins") == 0) {
> limit_item = LIMIT_LOGIN;
> pl->flag_numsyslogins = 0;
> @@ -399,6 +407,15 @@
> #endif
> limit_value *= 1024;
> break;
> +#ifdef RLIMIT_NICE
> + case RLIMIT_NICE:
> + if (limit_value > 19)
> + limit_value = 19;
> + if (limit_value < -20)
> + limit_value = -20;
> + limit_value = 19 - limit_value;
> + break;
> +#endif
> }
>
> if ( (limit_item != LIMIT_LOGIN)
> diff -ru pam-0.79/Linux-PAM/modules/pam_limits/README
> pam-0.79.rtlimit/Linux-PAM/modules/pam_limits/README
> --- pam-0.79/Linux-PAM/modules/pam_limits/README 2005-01-10
> 05:09:51.000000000 -0500
> +++ pam-0.79.rtlimit/Linux-PAM/modules/pam_limits/README 2005-09-27
> 22:15:01.000000000 -0400
> @@ -42,6 +42,9 @@
> - sigpending - max number of pending signals (Linux 2.6 and higher)
> - msgqueue - max memory used by POSIX message queues (bytes)
> (Linux 2.6 and higher)
> + - nice - max nice priority allowed to raise to. (Linux 2.6.12 and
> higher)
> + - rtprio - max realtime priority allowed for non-priviledged processes
> + (Linux 2.6.12 and higher)
>
> Note, if you specify a type of '-' but neglect to supply the item and
> value fields then the module will never enforce any limits on the
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