Re: Multi-threading and glitchless audio
Re: Multi-threading and glitchless audio
- Subject: Re: Multi-threading and glitchless audio
- From: Kurt Revis <email@hidden>
- Date: Thu, 27 Feb 2003 16:06:56 -0800
On Thursday, February 27, 2003, at 02:22 PM, Lionel Woog wrote:
Thread priority 63 using the mach set_priority call on the thread.
Note that you probably don't need to go anywhere near that high of a
priority. (Especially if you have timesharing turned off.) Try turning
it down and see how low you can go.
But I did have the weirdest thing happen yesterday. Kernel panic after
kernel panic whenever I accessed mach semaphores. The panic.log just
said
w_queue deadlock and some mumbo jumbo.
I did not think I should be able to do this from user space. It went
the
same way it came. I have no clue what happened, everything works now.
If
anyone at Apple wants to look into it, I have my panic.log handy.
If you get a kernel panic, file a bug. There is *never* any question
about this. Of course it's better to have a reproducible test case,
but any information is better than none.
http://developer.apple.com/bugreporter/index.html
For what it's worth, I've never gotten a panic using Mach semaphores,
but I haven't exercised them very hard.
--
Kurt Revis
email@hidden
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