Bug#717970: pulseaudio: alsa-sink alsa-sink.c ALSA (POLLINVAL) woke us, but nothing to write (Error in snd_usb_audio)

[pheanex]

Package: pulseaudio
Version: 2.0-6.1
Severity: normal

Extract from syslog:
pulseaudio[4186]: [alsa-sink] alsa-sink.c: ALSA weckte uns auf, um neue Daten
auf das Gerät zu schreiben, doch es gab nichts zum Schreiben!
pulseaudio[4186]: [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[4186]: [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.



-- System Information:
Debian Release: jessie/sid
  APT prefers testing
  APT policy: (500, 'testing')
Architecture: amd64 (x86_64)
Foreign Architectures: i386

Kernel: Linux 3.2.0-4-amd64 (SMP w/8 CPU cores)
Locale: LANG=de_DE.UTF-8, LC_CTYPE=de_DE.UTF-8 (charmap=UTF-8)
Shell: /bin/sh linked to /bin/dash

Versions of packages pulseaudio depends on:
ii  adduser                       3.113+nmu3
ii  consolekit                    0.4.5-3.1
ii  libasound2                    1.0.27.1-2
ii  libasound2-plugins            1.0.27-2
ii  libc6                         2.17-7
ii  libcap2                       1:2.22-1.2
ii  libdbus-1-3                   1.6.12-1
ii  libfftw3-3                    3.3.3-5
ii  libgcc1                       1:4.8.1-2
ii  libice6                       2:1.0.8-2
ii  libltdl7                      2.4.2-1.3
ii  liborc-0.4-0                  1:0.4.17-2
ii  libpulse0                     2.0-6.1
ii  libsamplerate0                0.1.8-5
ii  libsm6                        2:1.2.1-2
ii  libsndfile1                   1.0.25-7
ii  libspeexdsp1                  1.2~rc1-7
ii  libstdc++6                    4.8.1-2
ii  libsystemd-daemon0            44-12
ii  libsystemd-login0             44-12
ii  libtdb1                       1.2.10-2
ii  libudev0                      175-7.2
ii  libwebrtc-audio-processing-0  0.1-2
ii  libx11-6                      2:1.6.0-1
ii  libx11-xcb1                   2:1.6.0-1
ii  libxcb1                       1.9.1-3
ii  libxtst6                      2:1.2.1-1+deb7u1
ii  lsb-base                      4.1+Debian12
ii  udev                          175-7.2

Versions of packages pulseaudio recommends:
ii  gstreamer0.10-pulseaudio  0.10.31-3+nmu1
ii  pulseaudio-module-x11     2.0-6.1
ii  rtkit                     0.10-2

Versions of packages pulseaudio suggests:
pn  paman             <none>
pn  paprefs           <none>
ii  pavucontrol       1.0-1
pn  pavumeter         <none>
ii  pulseaudio-utils  2.0-6.1

-- Configuration Files:
/etc/pulse/daemon.conf changed:
; daemonize = no
; fail = yes
; allow-module-loading = yes
; allow-exit = yes
; use-pid-file = yes
; system-instance = no
; local-server-type = user
; enable-shm = yes
; shm-size-bytes = 0 # setting this 0 will use the system-default, usually 64 MiB
; lock-memory = no
; cpu-limit = no
; high-priority = yes
; nice-level = -11
; realtime-scheduling = yes
; realtime-priority = 5
; exit-idle-time = 20
; scache-idle-time = 20
; dl-search-path = (depends on architecture)
; load-default-script-file = yes
; default-script-file = /etc/pulse/default.pa
; log-target = auto
; log-level = notice
; log-meta = no
; log-time = no
; log-backtrace = 0
; resample-method = speex-float-3
; enable-remixing = yes
; enable-lfe-remixing = no
; flat-volumes = yes
; rlimit-fsize = -1
; rlimit-data = -1
; rlimit-stack = -1
; rlimit-core = -1
; rlimit-as = -1
; rlimit-rss = -1
; rlimit-nproc = -1
; rlimit-nofile = 256
; rlimit-memlock = -1
; rlimit-locks = -1
; rlimit-sigpending = -1
; rlimit-msgqueue = -1
; rlimit-nice = 31
; rlimit-rtprio = 9
; rlimit-rttime = 1000000
; default-sample-format = s16le
default-sample-rate = 44100
alternate-sample-rate = 44100
;alternate-sample-rate = 48000
; default-sample-channels = 2
; default-channel-map = front-left,front-right
; default-fragments = 4
; default-fragment-size-msec = 25
; enable-deferred-volume = yes
; deferred-volume-safety-margin-usec = 8000
; deferred-volume-extra-delay-usec = 0


-- no debconf information