help, jackd crashing, don't know why

[wfdudley]

adding ram from 512M to 1024M fixed it.  Thanks!

Bill Dudley

On 4/10/11, Pablo Fernández <pablo.fbus at gmail.com> wrote:
> El 09/04/11 22:47, Andrew escribió:
>> Are you using qtjackctl or launching from a script/command line?
>> Andrew Euell
>> The Sound of IT - High tech solutions for audio problems
>>
>> -----Original Message-----
>> From: wfdudley <wfdudley at gmail.com>
>> Sender: ubuntu-studio-users-bounces at lists.ubuntu.com
>> Date: Sat, 9 Apr 2011 14:18:59
>> To: <ubuntu-studio-users at lists.ubuntu.com>
>> Reply-To: Ubuntu Studio Users Help and Discussion
>> 	<ubuntu-studio-users at lists.ubuntu.com>
>> Subject: help, jackd crashing, don't know why
>>
>> Hi,
>>
>> I upgraded my ubuntu studio box to Lucid Lynx and now jackd is crashing.
>>
>> Here's the log:
>>
>> 09:49:11.871 Patchbay deactivated.
>> 09:49:11.914 Statistics reset.
>> 09:49:12.068 ALSA connection graph change.
>> 09:49:12.427 ALSA connection change.
>> 09:49:21.874 Startup script...
>> 09:49:21.876 artsshell -q terminate
>> sh: artsshell: not found
>> 09:49:22.280 Startup script terminated with exit status=32512.
>> 09:49:22.281 JACK is starting...
>> 09:49:22.283 /usr/bin/jackd -v -dalsa -dhw:0 -r44100 -p1024 -n3
>> jackd 0.118.0
>> Copyright 2001-2009 Paul Davis, Stephane Letz, Jack O'Quinn, Torben
>> Hohn and others.
>> jackd comes with ABSOLUTELY NO WARRANTY
>> This is free software, and you are welcome to redistribute it
>> under certain conditions; see the file COPYING for details
>> Memory locking is unlimited - this is dangerous. You should probably
>> alter the line:
>>      @audio   -  memlock    unlimited
>> in your /etc/limits.conf to read:
>>      @audio   -  memlock    354993
>> 09:49:22.318 JACK was started with PID=4646
>> getting driver descriptor from /usr/lib/jack/jack_dummy.so
>> getting driver descriptor from /usr/lib/jack/jack_alsa.so
>> getting driver descriptor from /usr/lib/jack/jack_firewire.so
>> no message buffer overruns
>> getting driver descriptor from /usr/lib/jack/jack_net.so
>> getting driver descriptor from /usr/lib/jack/jack_oss.so
>> JACK compiled with System V SHM support.
>> server `default' registered
>> registered builtin port type 32 bit float mono audio
>> registered builtin port type 8 bit raw midi
>> clock source = system clock via clock_gettime
>> start poll on 3 fd's
>> loading driver ..
>> apparent rate = 44100
>> creating alsa driver ... hw:0|hw:0|1024|3|44100|0|0|nomon|swmeter|-|32 bit
>> control device hw:0
>> new client: alsa_pcm, id = 1 type 1 @ 0x8fe7df8 fd = -1
>> 09:49:24.722 Could not connect to JACK server as client. - Please
>> check the messages window for more info.
>> server thread back from poll
>> new client: qjackctl, id = 2 type 2 @ 0xb788c000 fd = 13
>> start poll on 4 fd's
>> cannot read event connect result from server (interrupted system call)
>> 09:49:25.155 JACK was stopped successfully.
>> 09:49:25.162 Post-shutdown script...
>> 09:49:25.164 killall jackd
>> 09:49:25.165 Jack has crashed.
>> jackd: no process found
>> 09:49:25.661 Post-shutdown script terminated with exit status=256.
>>
>> The result of uname -a:
>> Linux hdrec 2.6.31-11-rt #154-Ubuntu SMP PREEMPT RT Wed Jun 9 12:28:53
>> UTC 2010 i686 GNU/Linux
>>
>> Current Ubuntu version: Lucid Lynx
>>
>> Is there anything more I should be reporting?
>>
>> Thanks in advance,
>> Bill Dudley
>> avid ubuntu user
>>
>
>
> I think you have little RAM, 512 MB or so?
>
> Check "ls /dev/shm". The problem could have to do with this:
>
> https://bugs.launchpad.net/ubuntu/+source/jack-audio-connection-kit/+bug/491329
>
> (This bug affects many more than 4 people even if they don't know, which
> is the worst case).
>
> See also:
>
> http://www.linuxmusicians.com/viewtopic.php?f=27&t=2790
>
> Cheers! Pablo
>
>
>
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