abrt version: 2.0.0
uid: 500
cmdline: /usr/bin/pulseaudio --start --log-target=syslog
component: pulseaudio
executable: /usr/bin/pulseaudio
kernel: 2.6.38.1-6.fc15.x86_64
crash_function: avcodec_encode_audio
time: 1301460101
architecture: x86_64
reason: Process /usr/bin/pulseaudio was killed by signal 11 (SIGSEGV)
package: pulseaudio-0.9.22-3.fc15
username: nate
rating: 4
os_release: Fedora release 15 (Lovelock)

Text file: event_log, 15211 bytes
Text file: smaps, 142400 bytes
Text file: maps, 31380 bytes
Binary file: coredump, 58118144 bytes
Text file: dsos, 23941 bytes
Text file: backtrace, 21931 bytes

comment
-----
I am trying to output pulseaudio out to my stereo by encoding it into a52 format using the a52 plugin for alsamixer. This is fairly normal as pulseaudio detects that I have the a52 plugin setup and will display the option for 5.1 sound output via the gnome sound preferences. 

This is useful for playing games that support more then 2 channels audio and your using a home theater type system that supports a52 audio over SPDIF. Even the very cheap ones support this.

from dmesg.
[  203.832068] alsa-sink[1988]: segfault at 20 ip 00007fcbcb696243 sp 00007fcbc99d2b80 error 4 in libavcodec.so.52.113.2[7fcbcb384000+525000]

That happens every time I try to enable digital surround sound via sound preferences. Looks like it's a segfault in the a52 plugin itself or something. I don't know for certain.

The normal PCM digital out works, but that's only 2 channels.

$ cat /etc/asound.conf 
#
# Place your global alsa-lib configuration here...
#

@hooks [
	{
		func load
		files [
			"/etc/alsa/pulse-default.conf"
		]
		errors false
	}
]
pcm.a52 {
	@args [CARD]
	@args.CARD {
		type string
	}
	type rate
	slave {
		pcm {
			type a52
			bitrate 448
			#bitrate 640
			channels 6
			card $CARD
		}
	rate 48000 #required somehow, otherwise nothing happens in PulseAudio
	}
}