Comment 11 for bug 221038

I can confirm this bug. I have changed the value in /etc/pulse/daemon.conf to:
default-sample-channels = 6
I am playing stereo flac files with xmms2. When I pause the playback, pulseaudio crashes after a few seconds. This behavior is reproducible.

$ pulseaudio
ALSA lib control.c:909:(snd_ctl_open_noupdate) Invalid CTL surround51:1
ALSA lib setup.c:96:(snd_sctl_install) Cannot lock ctl elem
W: alsa-util.c: Device hw:1 doesn't support 6 channels, changed to 2.
Soft CPU time limit exhausted, terminating.

$ cat /proc/asound/cards
 0 [HDMI ]: HDA-Intel - HDA ATI HDMI
                      HDA ATI HDMI at 0xe0310000 irq 17
 1 [Audigy2 ]: Audigy2 - Audigy 4 [SB0610]
                      Audigy 4 [SB0610] (rev.0, serial:0x10211102) at 0x1000, irq 21