KXStudio handles resume poorly

[Greg M]

Related to https://bugs.launchpad.net/kxstudio/+bug/619014

After resume, jackdbus hogs CPU and jackdbus file grows at a rate of about 5 MBps until kill or shutdown. As of this post, everything is up-to-date.

tail --retry --follow=name -n 100 ~/.log/jack/jackdbus.log
Sun Oct 24 16:35:44 2010: ERROR: ALSA: channel flush for playback failed (File descriptor in bad state)
Sun Oct 24 16:35:44 2010: ERROR: JackAudioDriver::ProcessAsync: read error, skip cycle
Sun Oct 24 16:35:44 2010: ERROR: alsa_driver_xrun_recovery
Sun Oct 24 16:35:44 2010: ERROR: ALSA: channel flush for playback failed (File descriptor in bad state)
Sun Oct 24 16:35:44 2010: ERROR: JackAudioDriver::ProcessAsync: read error, skip cycle
Sun Oct 24 16:35:44 2010: ERROR: alsa_driver_xrun_recovery
Sun Oct 24 16:35:44 2010: ERROR: ALSA: channel flush for playback failed (File descriptor in bad state)
Sun Oct 24 16:35:44 2010: ERROR: JackAudioDriver::ProcessAsync: read error, skip cycle
Sun Oct 24 16:35:44 2010: ERROR: alsa_driver_xrun_recovery
Sun Oct 24 16:35:44 2010: ERROR: ALSA: channel flush for playback failed (File descriptor in bad state)
Sun Oct 24 16:35:44 2010: ERROR: JackAudioDriver::ProcessAsync: read error, skip cycle
Sun Oct 24 16:35:44 2010: ERROR: alsa_driver_xrun_recovery
Sun Oct 24 16:35:44 2010: ERROR: ALSA: channel flush for playback failed (File descriptor in bad state)
Sun Oct 24 16:35:44 2010: ERROR: JackAudioDriver::ProcessAsync: read error, skip cycle
Sun Oct 24 16:35:44 2010: ERROR: alsa_driver_xrun_recovery
Sun Oct 24 16:35:44 2010: ERROR: ALSA: channel flush for playback failed (File descriptor in bad state)
Sun Oct 24 16:35:44 2010: ERROR: JackAudioDriver::ProcessAsync: read error, skip cycle
Sun Oct 24 16:35:44 2010: ERROR: ALSA: channel flush for playback failed (File descriptor in bad state)
Sun Oct 24 16:35:44 2010: ERROR: JackAudioDriver::ProcessAsync: read error, skip cycle
Sun Oct 24 16:35:44 2010: ERROR: alsa_driver_xrun_recovery
Sun Oct 24 16:35:44 2010: ERROR: ALSA: channel flush for playback failed (File descriptor in bad state)
Sun Oct 24 16:35:44 2010: ERROR: JackAudioDriver::ProcessAsync: read error, skip cycle
Sun Oct 24 16:35:44 2010: ERROR: ALSA: channel flush for playback failed (File descriptor in bad state)
Sun Oct 24 16:35:44 2010: ERROR: JackAudioDriver::ProcessAsync: read error, skip cycle
Sun Oct 24 16:35:44 2010: ERROR: alsa_driver_xrun_recovery
Sun Oct 24 16:35:44 2010: ERROR: ALSA: channel flush for playback failed (File descriptor in bad state)
Sun Oct 24 16:35:44 2010: ERROR: JackAudioDriver::ProcessAsync: read error, skip cycle
Sun Oct 24 16:35:44 2010: ERROR: alsa_driver_xrun_recovery
Sun Oct 24 16:35:44 2010: ERROR: ALSA: channel flush for playback failed (File descriptor in bad state)
Sun Oct 24 16:35:44 2010: ERROR: JackAudioDriver::ProcessAsync: read error, skip cycle
Sun Oct 24 16:35:44 2010: ERROR: alsa_driver_xrun_recovery
Sun Oct 24 16:35:44 2010: ERROR: ALSA: channel flush for playback failed (File descriptor in bad state)
Sun Oct 24 16:35:44 2010: ERROR: JackAudioDriver::ProcessAsync: read error, skip cycle
Sun Oct 24 16:35:44 2010: ERROR: alsa_driver_xrun_recovery
Sun Oct 24 16:35:44 2010: ERROR: ALSA: channel flush for playback failed (File descriptor in bad state)
Sun Oct 24 16:35:44 2010: ERROR: JackAudioDriver::ProcessAsync: read error, skip cycle
Sun Oct 24 16:36:22 2010: ------------------
Sun Oct 24 16:36:22 2010: Controller activated. Version 1.9.6 (unknown) built on Wed Dec 31 16:00:00 1969
Sun Oct 24 16:36:22 2010: Loading settings from "/home/matt/.config/jack/conf.xml" using expat_2.0.1 ...
Sun Oct 24 16:36:22 2010: setting engine option "driver" to value "alsa"
Sun Oct 24 16:36:22 2010: driver "alsa" selected
Sun Oct 24 16:36:22 2010: setting engine option "realtime" to value "true"
Sun Oct 24 16:36:22 2010: setting for driver "alsa" found
Sun Oct 24 16:36:22 2010: setting driver option "rate" to value "44100"
Sun Oct 24 16:36:22 2010: setting driver option "nperiods" to value "3"
Sun Oct 24 16:36:22 2010: Listening for D-Bus messages
Sun Oct 24 16:36:24 2010: Starting jack server...
Sun Oct 24 16:36:24 2010: JACK server starting in realtime mode with priority 10
Sun Oct 24 16:36:24 2010: Acquired audio card Audio0
Sun Oct 24 16:36:24 2010: creating alsa driver ... hw:0|hw:0|1024|3|44100|0|0|nomon|swmeter|-|32bit
Sun Oct 24 16:36:24 2010: Using ALSA driver HDA-Intel running on card 0 - HDA Intel at 0x50320000 irq 22
Sun Oct 24 16:36:24 2010: configuring for 44100Hz, period = 1024 frames (23.2 ms), buffer = 3 periods
Sun Oct 24 16:36:24 2010: ALSA: final selected sample format for capture: 32bit integer little-endian
Sun Oct 24 16:36:24 2010: ALSA: use 3 periods for capture
Sun Oct 24 16:36:24 2010: ALSA: final selected sample format for playback: 32bit integer little-endian
Sun Oct 24 16:36:24 2010: ALSA: use 3 periods for playback
Sun Oct 24 16:36:24 2010: graph reorder: new port 'system:capture_1'
Sun Oct 24 16:36:24 2010: New client 'system' with PID 0
Sun Oct 24 16:36:24 2010: graph reorder: new port 'system:capture_2'
Sun Oct 24 16:36:24 2010: graph reorder: new port 'system:playback_1'
Sun Oct 24 16:36:24 2010: graph reorder: new port 'system:playback_2'
Sun Oct 24 16:36:24 2010: graph reorder: new port 'system:playback_3'
Sun Oct 24 16:36:24 2010: graph reorder: new port 'system:playback_4'
Sun Oct 24 16:36:24 2010: graph reorder: new port 'system:playback_5'
Sun Oct 24 16:36:24 2010: graph reorder: new port 'system:playback_6'
Sun Oct 24 16:36:24 2010: New client 'PulseAudio JACK Sink' with PID 1501
Sun Oct 24 16:36:24 2010: Connecting 'PulseAudio JACK Sink:front-left' to 'system:playback_1'
Sun Oct 24 16:36:24 2010: Connecting 'PulseAudio JACK Sink:front-right' to 'system:playback_2'
Sun Oct 24 16:36:24 2010: Connecting 'PulseAudio JACK Sink:rear-left' to 'system:playback_3'
Sun Oct 24 16:36:24 2010: Connecting 'PulseAudio JACK Sink:rear-right' to 'system:playback_4'
Sun Oct 24 16:36:24 2010: Connecting 'PulseAudio JACK Sink:front-center' to 'system:playback_5'
Sun Oct 24 16:36:24 2010: Connecting 'PulseAudio JACK Sink:lfe' to 'system:playback_6'
Sun Oct 24 16:36:24 2010: New client 'PulseAudio JACK Source' with PID 1501
Sun Oct 24 16:36:24 2010: Connecting 'system:capture_1' to 'PulseAudio JACK Source:front-left'
Sun Oct 24 16:36:24 2010: Connecting 'system:capture_2' to 'PulseAudio JACK Source:front-right'
Sun Oct 24 16:36:26 2010: ERROR: JackEngine::XRun: client = PulseAudio JACK Sink was not run: state = 1
Sun Oct 24 16:36:26 2010: ERROR: JackAudioDriver::ProcessAsync Process error
Sun Oct 24 16:36:26 2010: ERROR: JackPosixMutex::Unlock res = 1
Sun Oct 24 16:36:26 2010: ERROR: JackPosixMutex::Unlock res = 1
Sun Oct 24 16:36:26 2010: ERROR: JackEngine::XRun: client = PulseAudio JACK Sink was not run: state = 1
Sun Oct 24 16:36:26 2010: ERROR: JackAudioDriver::ProcessAsync Process error
Sun Oct 24 16:36:26 2010: ERROR: JackAudioDriver::ProcessAsync Process error
Sun Oct 24 16:36:26 2010: ERROR: JackEngine::XRun: client = PulseAudio JACK Sink was not run: state = 1
Sun Oct 24 16:36:26 2010: ERROR: JackAudioDriver::ProcessAsync Process error
Sun Oct 24 16:36:26 2010: ERROR: JackPosixMutex::Unlock res = 1
Sun Oct 24 16:36:26 2010: ERROR: JackEngine::XRun: client = PulseAudio JACK Sink was not run: state = 1
Sun Oct 24 16:36:26 2010: ERROR: JackAudioDriver::ProcessAsync Process error
Sun Oct 24 16:36:26 2010: ERROR: JackPosixMutex::Unlock res = 1
Sun Oct 24 16:36:33 2010: ERROR: JackEngine::XRun: client = PulseAudio JACK Sink was not run: state = 1
Sun Oct 24 16:36:33 2010: ERROR: JackAudioDriver::ProcessAsync Process error
Sun Oct 24 16:36:33 2010: ERROR: JackPosixMutex::Unlock res = 1
Sun Oct 24 16:36:33 2010: ERROR: JackPosixMutex::Unlock res = 1
Sun Oct 24 16:36:33 2010: ERROR: JackEngine::XRun: client = PulseAudio JACK Sink was not run: state = 1
Sun Oct 24 16:36:33 2010: ERROR: JackAudioDriver::ProcessAsync Process error
Sun Oct 24 16:36:33 2010: ERROR: alsa_driver_xrun_recovery
Sun Oct 24 16:36:33 2010: ERROR: JackPosixMutex::Unlock res = 1
Sun Oct 24 16:36:33 2010: ERROR: JackAudioDriver::ProcessAsync: read error, skip cycle
Sun Oct 24 16:36:35 2010: ERROR: alsa_driver_xrun_recovery
Sun Oct 24 16:36:35 2010: ERROR: JackPosixMutex::Unlock res = 1
Sun Oct 24 16:36:35 2010: ERROR: JackAudioDriver::ProcessAsync: read error, skip cycle

[falkTX (Old) (falk-t-j)]

fixed in KXStudio by backporting the git commit that fixes this issue (and also the dummy-driver fix)