http://bugs.winehq.org/show_bug.cgi?id=32406
--- Comment #1 from Andrew Eikum aeikum@codeweavers.com 2012-12-10 10:19:36 CST --- I've tried 3 runs and it doesn't crash for me, but it looks like a race condition. The IAudioClient is NULL when GetCurrentPadding is called. A log with the channels from http://wiki.winehq.org/Sound might be useful if it doesn't turn into a heisenbug. Otherwise, we probably just need to look closely at how IAC is handled in dsound.