(gdb) bt
#0  0xf73b7355 in _xcb_out_flush_to (c=0xe7dbf6f0, request=1) at /usr/src/debug/x11-libs/libxcb-1.13/libxcb-1.13/src/xcb_out.c:472
#1  0xf73b89c4 in wait_for_reply (c=c@entry=0xe7dbf6f0, request=<optimized out>, e=0x0) at /usr/src/debug/x11-libs/libxcb-1.13/libxcb-1.13/src/xcb_in.c:479
#2  0xf73b8a53 in xcb_wait_for_reply (c=0xe7dbf6f0, request=1, e=0x0) at /usr/src/debug/x11-libs/libxcb-1.13/libxcb-1.13/src/xcb_in.c:532
#3  0xf73bf4b0 in xcb_intern_atom_reply (c=0xe7dbf6f0, cookie=..., e=0x0) at xproto.c:3268
#4  0xe77bf36a in pa_x11_get_prop (xcb=0xe7dbf6f0, screen=0, name=0xe77c577c "PULSE_SERVER", p=0xef1fbd30 "", l=1024)
    at /usr/src/debug/media-sound/pulseaudio-11.1-r1/pulseaudio-11.1/src/pulsecore/x11prop.c:112
#5  0xe77becb2 in pa_client_conf_from_x11 (c=0xe7dcb3d0) at /usr/src/debug/media-sound/pulseaudio-11.1-r1/pulseaudio-11.1/src/pulse/client-conf-x11.c:62
#6  0xe777cb29 in pa_client_conf_load (c=0xe7dcb3d0, load_from_x11=true, load_from_env=true) at /usr/src/debug/media-sound/pulseaudio-11.1-r1/pulseaudio-11.1/src/pulse/client-conf.c:160
#7  0xe7f58964 in pa_context_new_with_proplist (mainloop=0xe7dd64b0, name=0xef1fc300 "Civ5XP", p=0x0) at /usr/src/debug/media-sound/pulseaudio-11.1-r1/pulseaudio-11.1/src/pulse/context.c:171
#8  0xe7f58ace in pa_context_new (mainloop=0xe7dd64b0, name=0xef1fc300 "Civ5XP") at /usr/src/debug/media-sound/pulseaudio-11.1-r1/pulseaudio-11.1/src/pulse/context.c:103
#9  0xf7815f48 in ?? () from ./libopenal.so.1
#10 0xf78164ab in ?? () from ./libopenal.so.1
#11 0xf7818e06 in ?? () from ./libopenal.so.1
#12 0xf77ee0a3 in alcOpenDevice () from ./libopenal.so.1
#13 0x09126f34 in YUV12 ()
#14 0x091264a2 in YUV12 ()
#15 0x09113bee in check_for_pending_io ()
#16 0x09114188 in BinkOpen ()
#17 0x085f7553 in ASL::PlayBinkMovieGL(char const*, float, unsigned int, unsigned int, bool*) ()
#18 0x0884c26c in PlayMovieState::Begin() ()
#19 0x086e0fc3 in Civ5App::PlayOpeningMovie() ()
#20 0x086e1c46 in Civ5App::Init(char const*) ()
#21 0x0865b3ed in WinMain ()
#22 0x085f5487 in ?? ()
#23 0x085d8e3e in ThreadHANDLE::ThreadProc(void*) ()
#24 0xf7b726ef in start_thread (arg=<optimized out>) at pthread_create.c:465
#25 0xf79ba746 in clone () at ../sysdeps/unix/sysv/linux/i386/clone.S:108