keeping Jack from stopping

[oNNogitaar]

Dear all,
how can I keep Jack from stopping by itself?
Thank you! oNNo

[Pablo]

Hi ONNo,

This depends on your jack settings and on your hardware-software configuration. Please give here the info that you think is relevant and we will try to help.

Cheers! Pablo

[oNNogitaar]

Hi Pablo,
okay I have:

Dell latitude D630
AudioFire12 (firewire) interface

I am running:
Ubuntu 10.04 LTS - Lucid Lynx

these are my Jack settings...

starting up Ardour I get this log:

[ERROR]: AudioSetup value for interface is missing data
[ERROR]: AudioSetup value for inputdevice is missing data
[ERROR]: AudioSetup value for outputdevice is missing data

Thanks!

[Pablo]

Hi,

In qjackctl, try

interface: (default)
instead of hw:0

Now, run raboof's script. In a terminal:

sudo apt-get install mercurial
hg clone https://realtimeconfigquickscan.googlecode.com/hg/
cd hg
perl realTimeConfigQuickScan.pl

And paste here the results of the last command (under code tags)

Also paste the contents of:

cat /proc/interrupts

Be patient.

Cheers! Pablo

[oNNogitaar]

Hi, thanks for the help!
I set interface to (default)

run raboof's script. And paste here the results of the last command

Code: Select all

== GUI-enabled checks ==
Checking if you are root... no - good
Checking filesystem 'noatime' parameter... 2.6.32 kernel - good
(relatime is default since 2.6.30)
Checking CPU Governors... CPU 0: 'ondemand' CPU 1: 'ondemand'  - not good
Set CPU Governors to 'performance' with 'cpufreq-set -c <cpunr> -g performance'
See also: http://linuxmusicians.com/viewtopic.php?f=27&t=844
Checking swappiness... 60 - not good
** vm.swappiness is larger than 10
set it with '/sbin/sysctl -w vm.swappiness=10'
See also: http://linuxmusicians.com/viewtopic.php?f=27&t=452&start=30#p8916
Checking for resource-intensive background processes... none found - good
Checking checking sysctl inotify max_user_watches... < 524288 - not good
increase max_user_watches by adding 'fs.inotify.max_user_watches = 524288' to /etc/sysctl.conf and rebooting
For more information, see http://wiki.linuxmusicians.com/doku.php?id=system_configuration#sysctl.conf
Checking access to the high precision event timer... not readable - not good
/dev/hpet found, but not readable.
make /dev/hpet readable by the 'audio' group
For more information, see http://wiki.linuxmusicians.com/doku.php?id=system_configuration#hpet
Checking access to the real-time clock... not readable - not good
/dev/rtc found, but not readable.
make /dev/rtc readable by the 'audio' group
For more information, see http://wiki.linuxmusicians.com/doku.php?id=system_configuration#real-time_clock
Checking whether you're in the 'audio' group... yes - good
Checking for multiple 'audio' groups... no - good
yes - good.
Checking the ability to prioritize processes with chrt... yes - good
== Other checks ==
Finding current kernel config... found /boot/config-2.6.32-25-generic
Checking for Ingo Molnar's Real-Time Preemption... not found.
** Kernel without real-time capabilities found
   For more information, see http://wiki.linuxmusicians.com/doku.php?id=system_configuration#installing_a_real-time_kernel
Checking for high-resolution timers... found - good.
Checking for 1000hz clock... not found.
** Try setting your clock to 1000hz
   For more information, see:
   * http://wiki.linuxmusicians.com/doku.php?id=system_configuration#installing_a_real-time_kernel
   * http://www.rosegardenmusic.com/wiki/frequently_asked_questions#what_does_system_timer_resolution_is_too_low_mean
Checking for High Resolution Timers... found - good.
Checking filesystem types... ok.
not found.
** Warning: no tmpfs partition mounted on /tmp
   For more information, see:
   - http://wiki.linuxmusicians.com/doku.php?id=system_configuration#tmpfs
   - http://lowlatency.linuxaudio.org
** Set $SOUND_CARD_IRQ to the IRQ of your soundcard to enable more checks.
   Find your sound card's IRQ by looking at '/proc/interrupts' and lspci.

Also paste the contents of: cat /proc/interrupts

Code: Select all

           CPU0       CPU1       
  0:     239525     226985   IO-APIC-edge      timer
  1:         13        521   IO-APIC-edge      i8042
  4:          1          1   IO-APIC-edge    
  8:          1          0   IO-APIC-edge      rtc0
  9:          0          1   IO-APIC-fasteoi   acpi
 12:        177       1133   IO-APIC-edge      i8042
 14:       9310       8527   IO-APIC-edge      ata_piix
 15:          0          0   IO-APIC-edge      ata_piix
 16:          4          3   IO-APIC-fasteoi   nouveau
 18:      13715       1554   IO-APIC-fasteoi   ata_piix
 19:        393      16805   IO-APIC-fasteoi   ohci1394, yenta
 20:       1107      40779   IO-APIC-fasteoi   ehci_hcd:usb2, uhci_hcd:usb3, uhci_hcd:usb5
 21:        631        298   IO-APIC-fasteoi   uhci_hcd:usb4, uhci_hcd:usb6, HDA Intel
 22:         42         34   IO-APIC-fasteoi   ehci_hcd:usb1, uhci_hcd:usb7
 28:         89      11573   PCI-MSI-edge      eth0
 29:          0          0   PCI-MSI-edge      iwl3945
NMI:          0          0   Non-maskable interrupts
LOC:     259962     108243   Local timer interrupts
SPU:          0          0   Spurious interrupts
PMI:          0          0   Performance monitoring interrupts
PND:          0          0   Performance pending work
RES:      28797       3822   Rescheduling interrupts
CAL:         41         85   Function call interrupts
TLB:        475        408   TLB shootdowns
TRM:          0          0   Thermal event interrupts
THR:          0          0   Threshold APIC interrupts
MCE:          0          0   Machine check exceptions
MCP:          5          5   Machine check polls
ERR:          1
MIS:          0

Be patient

I try, I am just eager to get this working...

Luck & light, oNNo

[Pablo]

OK, there are some things you can improve in your setup. Take it easy, help would be better if it were interactive and forums are bad for interaction. I suggest joining #ubuntustudio channel in #IRC but we can try here aswell. I suggest you install the rt kernel and the rtirq-init script. Do a:

sudo apt-get install linux-rt rtirq-init

And reboot with the rt kernel in the grub menu.

Now, you have to check some things. You are not running the same linux as before. Check that the graphics work well. It is possible that you have to reinstall an additional hardware driver.

If you think that all is more or less OK, run this:

gksudo gedit /etc/default/rtirq

Enter your password and look at that file. You will see a line like this one:

Code: Select all

RTIRQ_NAME_LIST="rtc snd usb ...."

Change it to:

Code: Select all

RTIRQ_NAME_LIST="rtc yenta ohci1394"

Reboot with the rt kernel again. Now, check priorities:

ps -eo rtprio,cmd --sort rtprio| grep -i irq

If all looks fine so far, you can make that the linux rt is your default option in the grub menu. But I will cover that later.

Anyway, please, give more info on your system. Do a:

sudo apt-get install ffado-tools

Check the outputs of:

ffado-diag
ffado-test Discover
ffado-test ListDevices

And again, the quickscan script:

cd hg
perl realTimeConfigQuickScan.pl

More to come...

Cheers! Pablo

[autostatic]

http://linux.autostatic.com/je-systeem-configureren
http://linux.autostatic.com/firewire-gebruiken

[oNNogitaar]

Thank you Pablo & Jeremy
how do I know if I have all jackd, libjack0, qjackctl complete?
You both mention linux-rt so I did:

Code: Select all

sudo apt-get install linux-rt rtirq-init

I selected restart and got:

Ubuntu, met Linux 2.6.32-25-generic
Ubuntu, met Linux 2.6.32-25-generic (herstelmodus)
Ubuntu, met Linux 2.6.32-21-generic
Ubuntu, met Linux 2.6.32-21-generic (herstelmodus)
Ubuntu, met Linux 2.6.31-11-rt
Ubuntu, met Linux 2.6.31-11-rt (herstelmodus)
Memory test (memtest86+)
Memory test (memtest86+, serial console 115200)
Microsoft Windows XP Professional (on /dev/sda1)

And reboot with the rt kernel in the grub menu.

I selected the 5th and pressed enter.
I got:

mounting non on /dev failed: no such device

And then my normal Ubuntu studio opened.
I guess I did something wrong?

help would be better if it were interactive

So far I am very happy with all the help provided. ...and I am reading "Linux for dummies"

I suggest joining #ubuntustudio channel in #IRC

...eh, how does that work?
Thanks again!! oNNo

[raboof]

I suggest joining #ubuntustudio channel in #IRC

...eh, how does that work?

The 'lm live chat' link above links to #linuxmusicians, but you can also change the channel to more active channels like #ubuntustudio or #opensourcemusicians

[oNNogitaar]

thanks Raboof!

[oNNogitaar]

please, give more info on your system. Do a:

sudo apt-get install ffado-tools

Code: Select all

Pakketlijsten worden ingelezen... Klaar
Boom van vereisten wordt opgebouwd       
De status informatie wordt gelezen... Klaar
ffado-tools is reeds de nieuwste versie.
0 pakketten opgewaardeerd, 0 pakketten nieuw geïnstalleerd, 0 te verwijderen en 2 niet opgewaardeerd.

(ffado-tools is the newest version, nothing installed or removed 2 not updated)

Check the outputs of:
ffado-diag

Code: Select all

FFADO diagnostic utility 0.1
============================
(C) 2008 Pieter Palmers


=== CHECK ===
 Base system...
  kernel version............ 2.6.31-11-rt
FIXME: implement test for RT kernel
   RT patched............... False
  old 1394 stack present.... True
  old 1394 stack loaded..... True
  old 1394 stack active..... True
  new 1394 stack present.... True
  new 1394 stack loaded..... False
  new 1394 stack active..... False
  /dev/raw1394 node present. True
  /dev/raw1394 permissions.. True
 Prerequisites (dynamic at run-time)...
   gcc................ gcc (Ubuntu 4.4.3-4ubuntu5) 4.4.3
   g++................ sh: g++: not found
   PyQt............... sh: pyuic: not found
   jackd.............. jackd version 0.118.0 tmpdir /dev/shm protocol 24
     path............. /usr/bin/jackd
     flags............ Package jack was not found in the pkg-config search path.
Perhaps you should add the directory containing `jack.pc'
to the PKG_CONFIG_PATH environment variable
No package 'jack' found
   libraw1394......... Package libraw1394 was not found in the pkg-config search path.
Perhaps you should add the directory containing `libraw1394.pc'
to the PKG_CONFIG_PATH environment variable
No package 'libraw1394' found
     flags............ Package libraw1394 was not found in the pkg-config search path.
Perhaps you should add the directory containing `libraw1394.pc'
to the PKG_CONFIG_PATH environment variable
No package 'libraw1394' found
   libavc1394......... Package libavc1394 was not found in the pkg-config search path.
Perhaps you should add the directory containing `libavc1394.pc'
to the PKG_CONFIG_PATH environment variable
No package 'libavc1394' found
     flags............ Package libavc1394 was not found in the pkg-config search path.
Perhaps you should add the directory containing `libavc1394.pc'
to the PKG_CONFIG_PATH environment variable
No package 'libavc1394' found
   libiec61883........ Package libiec61883 was not found in the pkg-config search path.
Perhaps you should add the directory containing `libiec61883.pc'
to the PKG_CONFIG_PATH environment variable
No package 'libiec61883' found
     flags............ Package libiec61883 was not found in the pkg-config search path.
Perhaps you should add the directory containing `libiec61883.pc'
to the PKG_CONFIG_PATH environment variable
No package 'libiec61883' found
   libxml++-2.6....... Package libxml++-2.6 was not found in the pkg-config search path.
Perhaps you should add the directory containing `libxml++-2.6.pc'
to the PKG_CONFIG_PATH environment variable
No package 'libxml++-2.6' found
     flags............ Package libxml++-2.6 was not found in the pkg-config search path.
Perhaps you should add the directory containing `libxml++-2.6.pc'
to the PKG_CONFIG_PATH environment variable
No package 'libxml++-2.6' found
   dbus-1............. Package dbus-1 was not found in the pkg-config search path.
Perhaps you should add the directory containing `dbus-1.pc'
to the PKG_CONFIG_PATH environment variable
No package 'dbus-1' found
     flags............ Package dbus-1 was not found in the pkg-config search path.
Perhaps you should add the directory containing `dbus-1.pc'
to the PKG_CONFIG_PATH environment variable
No package 'dbus-1' found
 Prerequisites (static at compile-time)...
   gcc................ gcc (Ubuntu 4.4.3-4ubuntu5) 4.4.3
   g++................ g++ (Ubuntu 4.4.3-4ubuntu5) 4.4.3
   PyQt............... sh: pyuic: not found
   jackd.............. sh: jackd: not found
     path............. 
     flags............ Package jack was not found in the pkg-config search path.
   libraw1394......... 2.0.4
     flags............  -lraw1394  
   libavc1394......... Package libavc1394 was not found in the pkg-config search path.
     flags............ Package libavc1394 was not found in the pkg-config search path.
   libiec61883........ 1.2.0
     flags............  -liec61883 -lraw1394  
   libxml++-2.6....... 2.26.1
     flags............ -pthread -I/usr/include/libxml++-2.6 -I/usr/lib/libxml++-2.6/include -I/usr/include/libxml2 -I/usr/include/glibmm-2.4 -I/usr/lib/glibmm-2.4/include -I/usr/include/sigc++-2.0 -I/usr/lib/sigc++-2.0/include -I/usr/include/glib-2.0 -I/usr/lib/glib-2.0/include  -pthread -lxml++-2.6 -lxml2 -lglibmm-2.4 -lgobject-2.0 -lsigc-2.0 -lgthread-2.0 -lrt -lglib-2.0  
   dbus-1............. 1.2.16
     flags............ -I/usr/include/dbus-1.0 -I/usr/lib/dbus-1.0/include  -L/lib -ldbus-1 -lpthread -lrt  
 Hardware...
   Host controllers:
03:01.4 FireWire (IEEE 1394) [0c00]: O2 Micro, Inc. Firewire (IEEE 1394) [1217:00f7] (rev 02) (prog-if 10)
	Subsystem: Dell Device [1028:01f9]
	Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV+ VGASnoop- ParErr- Stepping- SERR+ FastB2B- DisINTx-
	Status: Cap+ 66MHz- UDF- FastB2B- ParErr- DEVSEL=medium >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx+
	Latency: 64, Cache Line Size: 64 bytes
	Interrupt: pin A routed to IRQ 19
	Region 0: Memory at f1dff000 (32-bit, non-prefetchable) [size=4K]
	Region 1: Memory at f1dfe800 (32-bit, non-prefetchable) [size=2K]
	Capabilities: <access denied>
	Kernel driver in use: ohci1394
	Kernel modules: firewire-ohci, ohci1394

   CPU info:
processor	: 0
vendor_id	: GenuineIntel
cpu family	: 6
model		: 15
model name	: Intel(R) Core(TM)2 Duo CPU     T7700  @ 2.40GHz
stepping	: 10
cpu MHz		: 1200.000
cache size	: 4096 KB
physical id	: 0
siblings	: 2
core id		: 0
cpu cores	: 2
apicid		: 0
initial apicid	: 0
fdiv_bug	: no
hlt_bug		: no
f00f_bug	: no
coma_bug	: no
fpu		: yes
fpu_exception	: yes
cpuid level	: 10
wp		: yes
flags		: fpu vme de pse tsc msr pae mce cx8 apic mtrr pge mca cmov pat pse36 clflush dts acpi mmx fxsr sse sse2 ss ht tm pbe nx lm constant_tsc arch_perfmon pebs bts aperfmperf pni dtes64 monitor ds_cpl vmx est tm2 ssse3 cx16 xtpr pdcm lahf_lm ida tpr_shadow vnmi flexpriority
bogomips	: 4788.53
clflush size	: 64
power management:

processor	: 1
vendor_id	: GenuineIntel
cpu family	: 6
model		: 15
model name	: Intel(R) Core(TM)2 Duo CPU     T7700  @ 2.40GHz
stepping	: 10
cpu MHz		: 800.000
cache size	: 4096 KB
physical id	: 0
siblings	: 2
core id		: 1
cpu cores	: 2
apicid		: 1
initial apicid	: 1
fdiv_bug	: no
hlt_bug		: no
f00f_bug	: no
coma_bug	: no
fpu		: yes
fpu_exception	: yes
cpuid level	: 10
wp		: yes
flags		: fpu vme de pse tsc msr pae mce cx8 apic mtrr pge mca cmov pat pse36 clflush dts acpi mmx fxsr sse sse2 ss ht tm pbe nx lm constant_tsc arch_perfmon pebs bts aperfmperf pni dtes64 monitor ds_cpl vmx est tm2 ssse3 cx16 xtpr pdcm lahf_lm ida tpr_shadow vnmi flexpriority
bogomips	: 4787.75
clflush size	: 64
power management:

 Configuration...
  IRQ information
Hardware Interrupts:
--------------------
 IRQ    0: PID:  None, count:         [148, 148], Sched None (priority None), drivers: ['timer']
 IRQ    1: PID:  None, count:             [3, 3], Sched None (priority None), drivers: ['i8042']
 IRQ    4: PID:  None, count:             [1, 1], Sched None (priority None), drivers: ['']
 IRQ    8: PID:  None, count:             [0, 0], Sched None (priority None), drivers: ['rtc0']
 IRQ    9: PID:  None, count:             [0, 0], Sched None (priority None), drivers: ['acpi']
 IRQ   12: PID:  None, count:           [60, 60], Sched None (priority None), drivers: ['i8042']
 IRQ   14: PID:  None, count:     [66468, 66468], Sched None (priority None), drivers: ['ata_piix']
 IRQ   15: PID:  None, count:             [0, 0], Sched None (priority None), drivers: ['ata_piix']
 IRQ   18: PID:  None, count:     [22197, 22197], Sched None (priority None), drivers: ['ata_piix']
 IRQ   19: PID:  None, count:           [50, 50], Sched None (priority None), drivers: ['ohci1394', 'yenta']
 IRQ   20: PID:  None, count:       [9763, 9763], Sched None (priority None), drivers: ['ehci_hcd:usb2', 'uhci_hcd:usb3', 'uhci_hcd:usb5']
 IRQ   21: PID:  None, count:         [309, 309], Sched None (priority None), drivers: ['uhci_hcd:usb4', 'uhci_hcd:usb6', 'HDA Intel']
 IRQ   22: PID:  None, count:           [41, 41], Sched None (priority None), drivers: ['ehci_hcd:usb1', 'uhci_hcd:usb7']
 IRQ   28: PID:  None, count:           [32, 32], Sched None (priority None), drivers: ['eth0']
 IRQ   29: PID:  None, count:             [0, 0], Sched None (priority None), drivers: ['iwl3945']

Software Interrupts:
--------------------


=== REPORT ===
FireWire kernel drivers:
[PASS] Kernel modules present and correctly loaded.
[PASS] /dev/raw1394 node present and accessible.

ffado-test Discover

Code: Select all

-----------------------------------------------
FFADO test and diagnostic utility
Part of the FFADO project -- www.ffado.org
Version: 2.0.0
(C) 2008, Daniel Wagner, Pieter Palmers
This program comes with ABSOLUTELY NO WARRANTY.
-----------------------------------------------

08443292144: Warning (efc_avc_cmd.cpp)[  90] deserialize: Deserialization failed
08443292407: Error (fireworks_device.cpp)[ 216] doEfcOverAVC: EfcOverAVCCmd command failed
08443292440: Error (fireworks_device.cpp)[ 737] readFlash: Flash read failed for block 0x00008000 (64 quadlets)
08443292456: Error (fireworks_session_block.cpp)[ 129] loadFromDevice: Flash read failed
08443292484: Error (fireworks_device.cpp)[ 426] loadSession: Could not load session block
08443292496: Warning (fireworks_device.cpp)[ 366] buildMixer: Could not load session
08443800533: Warning (efc_avc_cmd.cpp)[  90] deserialize: Deserialization failed
08443800674: Error (fireworks_device.cpp)[ 216] doEfcOverAVC: EfcOverAVCCmd command failed
08443800720: Error (fireworks_device.cpp)[ 623] getClock: Could not get clock info
no message buffer overruns

ffado-test ListDevices

Code: Select all

FFADO test and diagnostic utility
Part of the FFADO project -- www.ffado.org
Version: 2.0.0
(C) 2008, Daniel Wagner, Pieter Palmers
This program comes with ABSOLUTELY NO WARRANTY.
-----------------------------------------------

=== 1394 PORT 0 ===
  Node id  GUID                  VendorId     ModelId   Vendor - Model
   0       0x474fc0001a192070  0x00474FC0  0x00000000   Linux - ohci1394  - 
   1       0x001486016bf52dca  0x00001486  0x0000AF12   Echo Digital Audio - AudioFire12
no message buffer overruns

And again, the quickscan script:
cd hg

perl realTimeConfigQuickScan.pl

Code: Select all

== GUI-enabled checks ==
Checking if you are root... no - good
Checking filesystem 'noatime' parameter... 2.6.31 kernel - good
(relatime is default since 2.6.30)
Checking CPU Governors... CPU 0: 'ondemand' CPU 1: 'ondemand'  - not good
Set CPU Governors to 'performance' with 'cpufreq-set -c <cpunr> -g performance'
See also: http://linuxmusicians.com/viewtopic.php?f=27&t=844
Checking swappiness... 60 - not good
** vm.swappiness is larger than 10
set it with '/sbin/sysctl -w vm.swappiness=10'
See also: http://linuxmusicians.com/viewtopic.php?f=27&t=452&start=30#p8916
Checking for resource-intensive background processes... none found - good
Checking checking sysctl inotify max_user_watches... < 524288 - not good
increase max_user_watches by adding 'fs.inotify.max_user_watches = 524288' to /etc/sysctl.conf and rebooting
For more information, see http://wiki.linuxmusicians.com/doku.php?id=system_configuration#sysctl.conf
Checking access to the high precision event timer... not readable - not good
/dev/hpet found, but not readable.
make /dev/hpet readable by the 'audio' group
For more information, see http://wiki.linuxmusicians.com/doku.php?id=system_configuration#hpet
Checking access to the real-time clock... not readable - not good
/dev/rtc found, but not readable.
make /dev/rtc readable by the 'audio' group
For more information, see http://wiki.linuxmusicians.com/doku.php?id=system_configuration#real-time_clock
Checking whether you're in the 'audio' group... yes - good
Checking for multiple 'audio' groups... no - good
yes - good.
Checking the ability to prioritize processes with chrt... yes - good
== Other checks ==
Finding current kernel config... found /boot/config-2.6.31-11-rt
Checking for Ingo Molnar's Real-Time Preemption... found - good.
Checking for high-resolution timers... found - good.
Checking for 1000hz clock... found - good.
Checking for High Resolution Timers... found - good.
Checking filesystem types... ok.
not found.
** Warning: no tmpfs partition mounted on /tmp
   For more information, see:
   - http://wiki.linuxmusicians.com/doku.php?id=system_configuration#tmpfs
   - http://lowlatency.linuxaudio.org
** Set $SOUND_CARD_IRQ to the IRQ of your soundcard to enable more checks.
   Find your sound card's IRQ by looking at '/proc/interrupts' and lspci.

Thanks for the help! I have no clue what I am doing...

[Pablo]

Hi again,

I selected restart and got:

Ubuntu, met Linux 2.6.32-25-generic
Ubuntu, met Linux 2.6.32-25-generic (herstelmodus)
Ubuntu, met Linux 2.6.32-21-generic
Ubuntu, met Linux 2.6.32-21-generic (herstelmodus)
Ubuntu, met Linux 2.6.31-11-rt
Ubuntu, met Linux 2.6.31-11-rt (herstelmodus)
Memory test (memtest86+)
Memory test (memtest86+, serial console 115200)
Microsoft Windows XP Professional (on /dev/sda1)

I selected the 5th and pressed enter.

Well done.

mounting non on /dev failed: no such device

Harmless warning

And then my normal Ubuntu studio opened.

You "only" changed the brain and the heart, not the skin nor the clothes.

I guess I did something wrong?

No. You did it fine.

I guess you made the change in /etc/default/rtirq but you forgot to give the output of:

ps -eo rtprio,cmd --sort rtprio| grep -i irq

Cheers! Pablo

[autostatic]

mounting non on /dev failed: no such device

https://bugs.launchpad.net/ubuntu/+sour ... bug/599396

[oNNogitaar]

Hallo again,

run this:
gksudo gedit /etc/default/rtirq
...and look at that file. Change it to:

Code: Select all

RTIRQ_NAME_LIST="rtc yenta ohci1394"

Reboot with the rt kernel again.
Now, check priorities:
ps -eo rtprio,cmd --sort rtprio| grep -i irq

Code: Select all

     - grep --color=auto -i irq
    49 [sirq-high/0]
    49 [sirq-timer/0]
    49 [sirq-net-tx/0]
    49 [sirq-net-rx/0]
    49 [sirq-block/0]
    49 [sirq-tasklet/0]
    49 [sirq-sched/0]
    49 [sirq-hrtimer/0]
    49 [sirq-rcu/0]
    49 [sirq-high/1]
    49 [sirq-timer/1]
    49 [sirq-net-tx/1]
    49 [sirq-net-rx/1]
    49 [sirq-block/1]
    49 [sirq-tasklet/1]
    49 [sirq-sched/1]
    49 [sirq-hrtimer/1]
    49 [sirq-rcu/1]
    50 [irq/9-acpi]
    50 [irq/14-ata_piix]
    50 [irq/15-ata_piix]
    50 [irq/18-ata_piix]
    50 [irq/22-ehci_hcd]
    50 [irq/20-ehci_hcd]
    50 [irq/20-uhci_hcd]
    50 [irq/21-uhci_hcd]
    50 [irq/20-uhci_hcd]
    50 [irq/21-uhci_hcd]
    50 [irq/22-uhci_hcd]
    50 [irq/12-i8042]
    50 [irq/1-i8042]
    50 [irq/28-eth0]
    50 [irq/29-iwl3945]
    50 [irq/21-HDA Inte]
    80 [irq/19-ohci1394]
    85 [irq/19-yenta]
    90 [irq/8-rtc0]

https://bugs.launchpad.net/ubuntu/+sour ... bug/599396

...thanks! so it is nothing I could/should fix, right?

You "only" changed the brain and the heart, not the skin nor the clothes.

is it yet time to remove some older brains and hearts?

you can make that the linux rt is your default option in the grub menu. But I will cover that later.

okay...

http://linux.autostatic.com/je-systeem-configureren
http://linux.autostatic.com/firewire-gebruiken

...reading

[autostatic]

...thanks! so it is nothing I could/should fix, right?

Yup. It's a bit of a bogus warning anyway. The Lucid Lynx real-time kernel doesn't have support for devtmpfs (a filesystem for temporary stuff), only for the older and maybe a bit slower tmpfs. I think it's hardcoded somewhere in some package (probably the mountall package) but since I moved to a 2.6.33 real-time kernel I lost interest in getting rid of that warning.

...reading

Ok, for Lucid the situation is a bit different since you don't have to edit /etc/modules and you don't need to add an extra udev rule. Ubuntu Studio Controls does that for you now (System - Administration - Ubuntu Studio Controls). Personally I still prefer to modify these things manually though. Hmmm, now that I read it all again, udev rules you create yourself should never go in /lib/udev/rules.d but in /etc/udev/rules.d...