this bug annoys me a lot. i've got these pa_stream_writable_size()
failed freezes very often, from 30 seconds to 10 minutes, but it comes
back over and over again. I can't listen normally to music anymore. it
happens in exaile and rhythmbox too. youtube also loses sound, but
there's no pulse error window.

i created the valgrind log with
G_SLICE=always-malloc G_DEBUG=gc-friendly valgrind -v --tool=memcheck 
--leak-check=full --num-callers=40 --log-file=valgrind.log pulseaudio -vvvv

and pulseverbose log with
LANG=C pulseaudio -vvvv > ~/pulseverbose.log 2>&1

massif didn't give any output for me (maybe i did it wrong, couldn't find much 
info) i tried it with
valgrind --tool=massif --depth=5  --alloc-fn=g_malloc --alloc-fn=g_realloc 
--alloc-fn=g_try_malloc --alloc-fn=g_malloc0 --alloc-fn=g_mem_chunk_alloc 
pulseaudio

i attach lspci -vvnn too
Daniel, please reply if you still need something for this to be confirmed

** Attachment added: "valgrind.log"
   http://launchpadlibrarian.net/44066982/valgrind.log

-- 
pa_stream_writable_size() failed: Connection terminated errors not caught by 
apport
https://bugs.launchpad.net/bugs/532586
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