Comment 4 for bug 412224

Just got this one with pulseaudio 1:0.9.17-0ubuntu1:

(gdb) bt
#0 pa_mcalign_csize (m=Cannot access memory at address 0xb7ebd090
) at pulsecore/mcalign.c:209
#1 0x0039106e in sink_input_process_msg (o=Cannot access memory at address 0xb7ebd088
)
    at pulsecore/protocol-native.c:1352
#2 0x009bc21e in pa_asyncmsgq_dispatch (object=0x0, code=Cannot access memory at address 0xb7ebd0f8
)
    at pulsecore/asyncmsgq.c:324
#3 0x009e0a5b in asyncmsgq_read_work (i=Cannot access memory at address 0xb7ebd120
) at pulsecore/rtpoll.c:554
#4 0x009e1b53 in pa_rtpoll_run (p=Cannot access memory at address 0xb7ebd1b0
) at pulsecore/rtpoll.c:236
#5 0x003b7045 in thread_func (userdata=Cannot access memory at address 0xb7ebd238
) at modules/alsa/alsa-sink.c:1430
#6 0x0014bad2 in internal_thread_func (userdata=Cannot access memory at address 0xb7ebd300
)
    at pulsecore/thread-posix.c:72
#7 0x00dd9680 in start_thread () from /lib/libpthread.so.0
#8 0x00bb5b6e in clone () from /lib/libc.so.6