Re: Problems running latencytest: "error setting freq 1024"

[Frank Barknecht <fbar@footils.org>]

Hallo,
Paul Davis hat gesagt: // Paul Davis wrote:

> >$ measure -p ./out/x11.png -o ./out/x11.out -c 0 -f 1024 -n 2 -t 2
> >I get this error message: "error setting freq 1024"
> 
> probably a permissions problem. try it as root.

This is while runng at root. (Sorry for the "$" I typed that one by
hand). 

A tip from Tim Goetze to do: 

 # echo 2048 > /proc/sys/dev/rtc/max-user-freq
(^ sic!)

didn't help either yet. I did a strace on the measure run now, which
showed something equally strange (to my eyes): 

mlockall(MCL_CURRENT|MCL_FUTURE)        = 0
sched_get_priority_max(0x1)             = 99
sched_setscheduler(0, 0x1, 0xbfffe254)  = 0
open("/dev/midi0", O_RDWR)              = 3
ioctl(3, 0x40047401, 0x400)             = -1 ENOTTY (Inappropriate ioctl for device)
write(2, "error setting freq 1024\n", 24) = 24
exit_group(1)                           = ?

I'm still puzzled. Why "/dev/midi0"?

ciao
-- 
 Frank Barknecht                               _ ______footils.org__


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