Comment 3 for bug 502992

This mostly affects games using the libopenal1 library, and is likely to occur either:
1) When the sound initialises. or -
2) When the sound deinitialises.

But will likely affect any other application that uses Pulse Audio's threaded mainloop library.

Attached is a strace of running Alien Arena 7.33

Note the bottom:

open("/dev/urandom", O_RDONLY|O_NOCTTY|O_LARGEFILE) = 7
read(7, "\351f \257", 4) = 4
close(7) = 0
open("/dev/shm/pulse-shm-2938136297", O_RDWR|O_CREAT|O_EXCL|O_NOFOLLOW|O_CLOEXEC, 0400) = 7
ftruncate64(7, 67108904) = 0
mmap2(NULL, 67112960, PROT_READ|PROT_WRITE, MAP_SHARED, 7, 0) = 0xb36e6000
close(7) = 0
futex(0xdf7c124, FUTEX_WAIT_PRIVATE, 1, NULL <unfinished ...>