Fwd:?==?utf-8?q? Re:?==?utf-8?q? QTractor:?==?utf-8?q? QThreads: Not realtime on Linux without root? - Linux-audio-dev

11 Jan 2017

Am Mittwoch, 11. Januar 2017 13:21 CET, Felipe Ferreri Tonello
&lt;eu(a)felipetonello.com&gt; schrieb: 

...
  Hi Ralf,

 On 03/01/17 21:37, Ralf Mattes wrote:

 Am Dienstag, 03. Januar 2017 19:31 CET, Felipe Ferreri Tonello
&lt;eu(a)felipetonello.com&gt; schrieb: 

  If sched_setscheduler() returns -1, check if
errno is set to EPERM. In
 this case the user trying to perform this operation does not have> >>
CAP_SYS_NICE[1] capability, which is *required*.

 [1] http://man7.org/linux/man-pages/man7/capabilities.7.html

 If you want this type of feature, set CAP_SYS_NICE to the group audio
 that you are referring.  
 ??? How can I grant capabilities to a group? I thought capabilites where either given to
 a user (via /etc/security/capability.conf) or to a binary (by means of setcap).  
 AFAIK, pam_cap support users and groups. 
Not according to my local manpages (pam_cap(8)  09/23/2011 and CAPABILITY.CONF(5) --
09/23/2011).
Do you have any y reference for your information?

TIA Ralf Mattes