Re: cdrecord warning

[JFahnenmueller@t-online.de (Joachim Fahnenmueller)]

On Thu, Jun 03, 2004 at 06:59:52PM +0100, Pigeon wrote:
> On Wed, Jun 02, 2004 at 05:48:06PM +0200, Joachim Fahnenmueller wrote:
> > Hi everybody,
> > 
> > when I try to burn a CD as a normal user, I often get this warning:
> > 
> > cdrecord.mmap: Operation not permitted. WARNING: Cannot set RR-scheduler
> > cdrecord.mmap: Permission denied. WARNING: Cannot set priority using
> > setpriority().
> > cdrecord.mmap: WARNING: This causes a high risk for buffer underruns.
> > 
> > version: Cdrecord 2.01a16 (i686-pc-linux-gnu)
> > kernel: 2.4.18
> > 
> > Why, and what can I do?
> 
> setpriority() needs root privileges to "lower" (ie. make "more
> important") a process's priority.
> 
> # chmod u+s /usr/bin/cdrecord.mmap

Right, but I had done that before:

joachim@debian:~$ ls -l /usr/bin/cdrecord*
-rwxr-xr-x    1 root     root          142 2003-07-08 19:08 /usr/bin/cdrecord
-rwsr-xr--    1 root     cdrom      310060 2003-07-08 19:08
/usr/bin/cdrecord.mmap
-rwsr-xr--    1 root     cdrom      310476 2003-07-08 19:08
/usr/bin/cdrecord.shm

> 
> -- 
> Pigeon
> 
> Be kind to pigeons
> Get my GPG key here: http://pgp.mit.edu:11371/pks/lookup?op=get&search=0x21C61F7F


Regards
-- 
Joachim Fahnenmüller

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