This bug also affects the Lexicon Omega USB audio interface on Precise with linux-generic-lts-raring 3.8.0.27.27. This happens during ordinary mp3 playback with pulseaudio/alsa.

kernel: [ 1139.189653] usb 1-1.3.3.1: new full-speed USB device number 16 using ehci-pci
kernel: [ 1139.332530] usb 1-1.3.3.1: New USB device found, idVendor=1210, idProduct=0002
kernel: [ 1139.332552] usb 1-1.3.3.1: New USB device strings: Mfr=1, Product=2, SerialNumber=7
kernel: [ 1139.332556] usb 1-1.3.3.1: Product: Lexicon Omega
kernel: [ 1139.332559] usb 1-1.3.3.1: Manufacturer: Lexicon
kernel: [ 1139.332561] usb 1-1.3.3.1: SerialNumber: Lex1.00
kernel: [ 1139.346377] 16:1:1: cannot get freq at ep 0x1
kernel: [ 1139.350325] 16:1:2: cannot get freq at ep 0x1
kernel: [ 1139.355423] 16:2:1: cannot get freq at ep 0x83
kernel: [ 1139.359895] 16:2:2: cannot get freq at ep 0x83
kernel: [ 1139.375996] 16:4:1: cannot get freq at ep 0x2
kernel: [ 1139.380042] 16:4:2: cannot get freq at ep 0x2
kernel: [ 1139.384874] 16:5:1: cannot get freq at ep 0x85
kernel: [ 1139.389146] 16:5:2: cannot get freq at ep 0x85
kernel: [ 1139.407356] 16:9:1: cannot get freq at ep 0x1
kernel: [ 1139.411508] 16:9:2: cannot get freq at ep 0x1
kernel: [ 1139.416279] 16:10:1: cannot get freq at ep 0x83
kernel: [ 1139.420440] 16:10:2: cannot get freq at ep 0x83
mtp-probe: checking bus 1, device 16: "/sys/devices/pci0000:00/0000:00:1a.0/usb1/1-1/1-1.3/1-1.3.3/1-1.3.3.1"
mtp-probe: bus: 1, device: 16 was not an MTP device
AptDaemon: INFO: Quitting due to inactivity
AptDaemon: INFO: Quitting was requested
kernel: [ 1940.846601] 16:1:1: cannot get freq at ep 0x1
kernel: [ 1940.850312] 16:1:1: cannot get freq at ep 0x1
kernel: [ 1957.006708] delay: estimated 266, actual 1
kernel: [ 1966.935031] delay: estimated 353, actual 1
kernel: [ 1966.941558] delay: estimated 90, actual 1
kernel: [ 2001.866327] delay: estimated 353, actual 0
kernel: [ 2066.780996] cannot submit urb (err = -18)
kernel: [ 2066.781004] delay: estimated 354, actual 1
kernel: [ 2066.781028] cannot submit urb (err = -18)
kernel: [ 2066.781032] delay: estimated 353, actual 0
kernel: [ 2066.781037] cannot submit urb (err = -18)


On linux-generic-lts-quantal 3.5.0.23.35 to 3.5.0.37.43 the log is different, because of the different source code:

kernel: [ 1471.409908] delay: estimated 353, actual 0
kernel: [ 1501.400538] delay: estimated 353, actual 0
kernel: [ 1501.406980] delay: estimated 89, actual 0
kernel: [ 1541.283393] delay: estimated 353, actual 1
kernel: [ 1551.324519] delay: estimated 354, actual 1
kernel: [ 1551.324555] delay: estimated 354, actual 1
kernel: [ 1553.385436] delay: estimated 309, actual 1
pulseaudio[2456]: [alsa-sink] alsa-sink.c: ALSA weckte uns auf, um neue Daten auf das Gerät zu schreiben, doch es gab nichts zum Schreiben!
pulseaudio[2456]: [alsa-sink] alsa-sink.c: Dies ist höchstwahrscheinlich ein Fehler im ALSA-Treiber 'snd_usb_audio'. Bitte melden Sie diesen Fehler den ALSA-Entwicklern.
pulseaudio[2456]: [alsa-sink] alsa-sink.c: Wir wurden durch das POLLOUT-Set geweckt, allerdings lieferte ein anschliessender snd_pcm_avail() den Wert 0 oder einen anderen Wert < min_avail.
kernel: [ 1556.317540] delay: estimated 354, actual 1
kernel: [ 1616.167610] delay: estimated 353, actual 0
kernel: [ 1616.167648] delay: estimated 353, actual 0
kernel: [ 1666.134230] delay: estimated 353, actual 0
kernel: [ 1666.134260] delay: estimated 353, actual 0
kernel: [ 1706.002670] delay: estimated 309, actual 0
kernel: [ 1815.890321] delay: estimated 353, actual 0
kernel: [ 1815.890352] delay: estimated 353, actual 0
kernel: [ 1825.852961] delay: estimated 354, actual 1
kernel: [ 1825.857742] delay: estimated 134, actual 1
kernel: [ 1860.784020] delay: estimated 353, actual 0
kernel: [ 1860.789536] delay: estimated 133, actual 1
kernel: [ 1915.698368] delay: estimated 353, actual 0
kernel: [ 1915.702865] delay: estimated 177, actual 0
kernel: [ 1930.661158] delay: estimated 354, actual 1
kernel: [ 1970.596085] delay: estimated 353, actual 1
kernel: [ 1970.600242] delay: estimated 178, actual 1
kernel: [ 2055.406143] delay: estimated 265, actual 0
kernel: [ 2070.423229] delay: estimated 354, actual 1
kernel: [ 2070.428242] delay: estimated 133, actual 0
kernel: [ 2075.423583] delay: estimated 353, actual 0
kernel: [ 2075.427571] delay: estimated 177, actual 0
kernel: [ 2140.252079] delay: estimated 309, actual 0
kernel: [ 2170.200254] delay: estimated 265, actual 0
kernel: [ 2250.130594] delay: estimated 354, actual 1
kernel: [ 2250.130630] delay: estimated 353, actual 0
kernel: [ 2300.023917] delay: estimated 353, actual 0
kernel: [ 2300.029443] delay: estimated 133, actual 0
kernel: [ 2379.836703] delay: estimated 353, actual 1
kernel: [ 2454.777987] delay: estimated 354, actual 1
kernel: [ 2454.778675] delay: estimated 354, actual 1
kernel: [ 2459.698513] delay: estimated 354, actual 1
kernel: [ 2634.468629] delay: estimated 353, actual 1
kernel: [ 2634.468934] delay: estimated 354, actual 1
kernel: [ 2659.370856] delay: estimated 354, actual 1
kernel: [ 2659.370891] delay: estimated 354, actual 1
kernel: [ 2664.355469] delay: estimated 310, actual 1
kernel: [ 2664.433932] cannot submit urb (err = -27)
kernel: [ 2664.433965] delay: estimated 354, actual 1
kernel: [ 2664.433976] cannot submit urb (err = -27)
kernel: [ 2664.434003] delay: estimated 353, actual 0
kernel: [ 2664.434027] cannot submit urb (err = -27)