On 1/21/07, <b class="gmail_sendername">Lemmih</b> &lt;<a href="mailto:lemmih@gmail.com">lemmih@gmail.com</a>&gt; wrote:<div><span class="gmail_quote"></span><blockquote class="gmail_quote" style="border-left: 1px solid rgb(204, 204, 204); margin: 0pt 0pt 0pt 0.8ex; padding-left: 1ex;">
<br>Do you have a smaller test case? I couldn&#39;t reproduce the error after<br>I pulled out the MacOS stuff.</blockquote><div><br>No, I don&#39;t have a smaller test case yet. I&#39;m trying to reproduce the same environment as the CoreAudio IO proc using a real-time scheduled pthread. Which is what I understand CoreAudio is doing. I&#39;m starting to think the problem could be:
<br>- Interference with the alarm signal haskell uses to schedule. There is a bug filed in GHC&#39;s trac system, so I presume it&#39;s still true, but I haven&#39;t located the code in GHC that sets this up.<br>- The haskell code is too slow. If a coreaudio IO proc takes too long the system will still call the callback but essentially silence all output. Which is what is consistent with what I observed, but doesn&#39;t explain why code after the poke* call is not occuring.
<br><br></div></div>-- <br>-Corey O&#39;Connor