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a10a3ecbac
snd_pcm_writei() is meant to block block until all samples are written, but apparently in some situations it can block for much longer, prehaps even a infinite time, in the case of virtual machine FifoCI runs in. Because it grabed a mutex before blocking, it could also block the Clear() call for an infinite length of time, blocking dolphin's emu thread. snd_pcm_writei() also takes 10-15 seconds if you run dolphin under GDB and can randomly take 5 or so seconds during normal usage. By moving all the pause code to the ALSA thread, Clear() no-longer blocks and everyone keeps their sanity.