[linux-audio-user] jackd "zombified - calling shutdown handler"

Hello list, jackd is shutting down (seemingly randomly) with the message "zombified - calling shutdown handler". I am using: ubuntu feisty latest updates with ubuntustudio packages Dell Inspiron 630m laptop, 1g ram, pentium m 1.73 ghz Edirol FA-101 firewire qjackctl 0.2.21-1 jackd 0.102.20 libfreebob 1.0.0-3 kernel 2.6.20-8-lowlatency I added the following to limits.conf for pam stuff (I think) @audio - rtprio 99 @audio - memlock 250000 @audio - nice -10 jack startup command (from qjackctl, I've tried different settings with sporadic results) jackd -R -dfreebob -dhw:0 -r44100 -p512 -n2 -i10 -o10 I'm really lost as to what the problem is (I'm no linux guru) and my settings are only based on copying and pasting from guides around the net. So if anyone can explain why this is happening or where I've gone wrong in my setup I would be very grateful. thanks, grae This is the full output from qjackctl: 19:01:46.132 JACK is starting... 19:01:46.133 /usr/bin/jackd -R -dfreebob -dhw:0 -r44100 -p512 -n2 -i10 -o10 19:01:46.148 JACK was started with PID=11204 (0x2bc4). jackd 0.102.20 Copyright 2001-2005 Paul Davis 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 JACK compiled with System V SHM support. loading driver .. Freebob using Firewire port 0, node -1 19:01:47.282 MIDI connection graph change. libiec61883 warning: Established connection on channel 0. You may need to manually set the channel on the receiving node. libiec61883 warning: Established connection on channel 1. You may need to manually set the channel on the transmitting node. 19:01:47.366 MIDI connection change. 19:01:48.173 Server configuration saved to "/home/grae/.jackdrc". 19:01:48.174 Statistics reset. 19:01:48.176 Client activated. 19:01:48.178 Audio connection change. 19:01:48.184 Audio connection graph change. 19:02:17.758 Audio connection graph change. unknown source port in attempted connection [ZynAddSubFX:out_1] unknown source port in attempted connection [ZynAddSubFX:out_2] unknown source port in attempted connection [jamin:out_L] unknown source port in attempted connection [jamin:out_R] 19:02:17.929 Audio connection change. 19:03:03.193 MIDI connection graph change. 19:03:03.209 MIDI connection graph change. 19:03:03.913 Audio connection graph change. 19:03:03.936 MIDI connection graph change. 19:03:04.017 Audio connection change. 19:03:04.019 MIDI connection change. 19:03:16.170 MIDI connection change. 19:10:58.904 Audio connection graph change. 19:10:59.138 Audio connection graph change. unknown source port in attempted connection [jamin:out_L] unknown source port in attempted connection [jamin:out_R] 19:10:59.288 Audio connection change. 19:11:46.100 Audio connection graph change. 19:47:17.784 MIDI connection graph change. zombified - calling shutdown handler 19:47:17.787 Shutdown notification. 19:47:17.788 Client deactivated. 19:47:17.789 JACK was stopped successfully. 19:47:17.789 Post-shutdown script... 19:47:17.789 killall jackd cannot send request type 7 to server cannot read result for request type 7 from server (Broken pipe) cannot send request type 7 to server cannot read result for request type 7 from server (Broken pipe) jackd: no process killed 19:47:18.660 Post-shutdown script terminated with exit status=256. 00:41:50.303 MIDI connection graph change. 00:41:50.310 MIDI connection graph change.