I can reliably reproduce this situation, both the problem itself, being
that pulseaudio dies, and the fact that apport does not notice.
The reason for the latter is that pulseaudio is being killed with
SIGKILL(!):
recvmsg(21, {msg_name(0)=NULL,
msg_iov(1)=[{"\0\0\0\30\377\377\377\377\0\0\0\0\0\0\0\0\0\0\0\0", 20}],
msg_controllen=24, {cmsg_len=24, cmsg_level=SOL_SOCKET,
cmsg_type=SCM_CREDENTIALS{pid=14140, uid=1000, gid=1000}}, msg_flags=0}, 0) = 20
ppoll([{fd=4, events=POLLIN}, {fd=21, events=POLLIN}, {fd=10, events=POLLIN},
{fd=7, events=POLLIN}, {fd=23, events=POLLIN}, {fd=30, events=POLLIN}, {fd=34,
events=POLLIN}, {fd=33, events=POLLIN}, {fd=32, events=POLLIN}, {fd=31,
events=POLLIN|POLLERR|POLLHUP}, {fd=31, events=0}, {fd=24, events=POLLIN},
{fd=27, events=POLLIN}, {fd=17, events=POLLIN}, {fd=20, events=POLLIN}, {fd=16,
events=POLLIN|POLLERR|POLLHUP}, {fd=16, events=0}, {fd=15, events=POLLIN},
{fd=14, events=POLLIN}, {fd=8, events=POLLIN}], 20, NULL, NULL, 8) = 1
([{fd=21, revents=POLLIN}])
recvmsg(21, {msg_name(0)=NULL,
msg_iov(1)=[{"L\0\0\0\16L\0\0\0NL\0\0\0\1TK\336\220\203\0\3D\203", 24}],
msg_controllen=24, {cmsg_len=24, cmsg_level=SOL_SOCKET,
cmsg_type=SCM_CREDENTIALS{pid=14140, uid=1000, gid=1000}}, msg_flags=0}, 0) = 24
read(17, "\1\0\0\0\0\0\0\0", 8) = 8
read(17, "\1\0\0\0\0\0\0\0", 8) = 8
read(17, "\1\0\0\0\0\0\0\0", 8) = 8
read(17, "\1\0\0\0\0\0\0\0", 8) = 8
read(17, "\1\0\0\0\0\0\0\0", 8) = 8
read(17, "\1\0\0\0\0\0\0\0", 8) = 8
read(17, "\1\0\0\0\0\0\0\0", 8) = 8
read(17, "\1\0\0\0\0\0\0\0", 8) = 8
read(17, "\1\0\0\0\0\0\0\0", 8) = 8
futex(0x83d66a8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
+++ killed by SIGKILL +++
--
pa_stream_writable_size() failed: Connection terminated errors not caught by
apport
https://bugs.launchpad.net/bugs/532586
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