[mythtv-users] Realtime Priority; limits.conf with pam-0.78 on gentoo
Nick Rosier
nick.rosier at gmail.com
Tue Jan 10 23:42:55 UTC 2006
On 1/11/06, Rickard Borgmäster <doktorn at sub.nu> wrote:
> Hello,
>
> I looked at MythTV setup docs to see about the "new" way of giving
> frontend realtime priority, instead of running it SUID:
>
> http://www.mythtv.org/docs/mythtv-HOWTO-5.html#ss5.4
>
> I've done exactly as stated, but I get this errors that indicate that
> something is wrong:
>
> Jan 11 00:00:01 htpc pam_limits[7390]: unknown limit item 'rt_priority'
> Jan 11 00:00:01 htpc pam_limits[7390]: unknown limit item 'nice'
> Jan 11 00:00:01 htpc pam_limits[7392]: unknown limit item 'rt_priority'
> Jan 11 00:00:01 htpc pam_limits[7392]: unknown limit item 'nice'
>
> Kernel is 2.6.15 om amd64 so it shouldn't be too old.
>
> This is my limits.conf, in which you can see that the neither the
> rt_priority nor the nice item keyword is stated.
>
> # cat /etc/security/limits.conf
> # /etc/security/limits.conf
> #
> #Each line describes a limit for a user in the form:
> #
> #<domain> <type> <item> <value>
> #
> #Where:
> #<domain> can be:
> # - an user name
> # - a group name, with @group syntax
> # - the wildcard *, for default entry
> # - the wildcard %, can be also used with %group syntax,
> # for maxlogin limit
> #
> #<type> can have the two values:
> # - "soft" for enforcing the soft limits
> # - "hard" for enforcing hard limits
> #
> #<item> can be one of the following:
> # - core - limits the core file size (KB)
> # - data - max data size (KB)
> # - fsize - maximum filesize (KB)
> # - memlock - max locked-in-memory address space (KB)
> # - nofile - max number of open files
> # - rss - max resident set size (KB)
> # - stack - max stack size (KB)
> # - cpu - max CPU time (MIN)
> # - nproc - max number of processes
> # - as - address space limit
> # - maxlogins - max number of logins for this user
> # - priority - the priority to run user process with
> # - locks - max number of file locks the user can hold
> #
> #<domain> <type> <item> <value>
> #
>
> #* soft core 0
> #* hard rss 10000
> #@student hard nproc 20
> #@faculty soft nproc 20
> #@faculty hard nproc 50
> #ftp hard nproc 0
> #@student - maxlogins 4
>
> # MythTV Realtime fixes
> * - rt_priority 0
> * - nice 0
> @audio - rt_priority 50
> @audio - nice 0
>
> # End of file
>
> Am I missing something here? BTW, I'm on MythTV-svn built yesterday.
AFAIK you need at least pam-0.78-r4 or -r5 which are not in portage;
just search in the forums or on google for the ebuilds. And from the
documentation the option should be rtprio.
N.
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