[pulseaudio-tickets] [PulseAudio] #175: Simultaneous output freezes clients if removed mid-use

[PulseAudio]

#175: Simultaneous output freezes clients if removed mid-use
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  Reporter:  coling  |       Owner:  lennart
      Type:  defect  |      Status:  new    
  Priority:  normal  |   Milestone:         
 Component:  daemon  |    Severity:  normal 
Resolution:          |    Keywords:         
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Comment (by pcwalden):

 This same fault happened to me when I plugged in a USB sound device, then
 switched to the combined sink using padevchooser. The pa server crashed,
 but the client did not freeze. Here is the message log:


 {{{
 Aug 20 13:16:58 walden5 kernel: usb 1-1: USB disconnect, address 2
 Aug 20 13:17:07 walden5 kernel: usb 1-1: new full speed USB device using
 uhci_hcd and address 3
 Aug 20 13:17:07 walden5 kernel: usb 1-1: device descriptor read/64, error
 -71
 Aug 20 13:17:08 walden5 kernel: usb 1-1: configuration #1 chosen from 1
 choice
 Aug 20 13:17:08 walden5 kernel: input: Philips UAC3553B as
 /devices/pci0000:00/0000:00:07.2/usb1/1-1/1-1:1.2/input/input10
 Aug 20 13:17:09 walden5 kernel: input,hidraw0: USB HID v1.00 Device
 [Philips UAC3553B] on usb-0000:00:07.2-1
 Aug 20 13:17:09 walden5 kernel: usb 1-1: New USB device found,
 idVendor=0471, idProduct=0110
 Aug 20 13:17:09 walden5 kernel: usb 1-1: New USB device strings: Mfr=1,
 Product=2, SerialNumber=0
 Aug 20 13:17:09 walden5 kernel: usb 1-1: Product: UAC3553B
 Aug 20 13:17:09 walden5 kernel: usb 1-1: Manufacturer: Philips
 Aug 20 13:17:09 walden5 kernel: ALSA sound/usb/usbaudio.c:2798: 3:1:1: add
 audio endpoint 0x1
 Aug 20 13:17:09 walden5 kernel: ALSA sound/usb/usbaudio.c:1306: current
 rate 0 is different from the runtime rate 48000
 Aug 20 13:17:09 walden5 kernel: ALSA sound/usb/usbaudio.c:2798: 3:1:2: add
 audio endpoint 0x1
 Aug 20 13:17:09 walden5 kernel: ALSA sound/usb/usbaudio.c:1306: current
 rate 0 is different from the runtime rate 48000
 Aug 20 13:17:09 walden5 kernel: ALSA sound/usb/usbmixer.c:988: [1] FU [PCM
 Playback Switch] ch = 1, val = 0/1/1
 Aug 20 13:17:10 walden5 kernel: ALSA sound/usb/usbmixer.c:405: cannot set
 ctl value: req = 0x4, wValue = 0x201, wIndex = 0x100, type = 4, data =
 0x8/0x0
 Aug 20 13:17:10 walden5 kernel: ALSA sound/usb/usbmixer.c:988: [1] FU [PCM
 Playback Volume] ch = 2, val = -10496/0/16
 Aug 20 13:17:10 walden5 kernel: ALSA sound/usb/usbmixer.c:405: cannot set
 ctl value: req = 0x4, wValue = 0x300, wIndex = 0x100, type = 2, data =
 0x1/0x0
 Aug 20 13:17:10 walden5 kernel: ALSA sound/usb/usbmixer.c:988: [1] FU
 [Tone Control - Bass] ch = 1, val = -48/48/2
 Aug 20 13:17:10 walden5 kernel: ALSA sound/usb/usbmixer.c:405: cannot set
 ctl value: req = 0x4, wValue = 0x500, wIndex = 0x100, type = 2, data =
 0x1/0x0
 Aug 20 13:17:11 walden5 kernel: ALSA sound/usb/usbmixer.c:988: [1] FU
 [Tone Control - Treble] ch = 1, val = -48/48/2
 Aug 20 13:17:11 walden5 kernel: ALSA sound/usb/usbmixer.c:988: [1] FU
 [Auto Gain Control] ch = 1, val = 0/1/1
 Aug 20 13:17:11 walden5 kernel: ALSA sound/usb/usbmixer.c:988: [1] FU
 [Bass Boost] ch = 1, val = 0/1/1
 Aug 20 13:17:11 walden5 kernel: usbcore: registered new interface driver
 snd-usb-audio
 Aug 20 13:17:12 walden5 kernel: ALSA sound/usb/usbaudio.c:1353: setting
 usb interface 1:2
 Aug 20 13:17:12 walden5 kernel: ALSA sound/usb/usbaudio.c:1306: current
 rate 0 is different from the runtime rate 44100
 Aug 20 13:21:50 walden5 kernel: ALSA sound/usb/usbaudio.c:1353: setting
 usb interface 1:2
 Aug 20 13:21:51 walden5 kernel: ALSA sound/usb/usbaudio.c:1306: current
 rate 0 is different from the runtime rate 44100
 Aug 20 13:21:51 walden5 pulseaudio[2695]: module-combine.c: Assertion
 '!op->outq_rtpoll_item' failed at modules/module-combine.c:584, function
 sink_process_msg(). Aborting.


 }}}

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Ticket URL: <http://www.pulseaudio.org/ticket/175#comment:3>
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