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Re: dyld returns 2 when loading AppleHDAHALPlugIn
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Re: dyld returns 2 when loading AppleHDAHALPlugIn


  • Subject: Re: dyld returns 2 when loading AppleHDAHALPlugIn
  • From: Jeff Moore <email@hidden>
  • Date: Thu, 13 Jul 2006 14:43:02 -0700

The log message means that, for whatever reason, the plug-in that the built-in hardware uses with the HAL isn't getting loaded. It could be because it isn't fat (end users have a myriad of ways to thin what gets installed, usually in a vain attempt to save disk space), but it could just as easily be because of disk corruption.

At any rate, my guess is that the log message has nothing to do with anything this user is experiencing. The failure to load the plug-in is not fatal. Further, failure to load the plug-in for the built-in hardware has no impact on the MotU hardware.

So presuming your user has a uncorrupted system installed, I think you are chasing a red herring with this log message. What you need to do is look at the "crashes and buggy audio behavior" and try to explain what each of them is about. From there, you can start to see if they are all the same crash, or a cluster of related crashes, or just random. That should help you determine the commonality and lead you to the source.

On Jul 13, 2006, at 1:21 PM, Christopher Ashworth wrote:

I have a user on an Intel machine that is connected to a MOTU 828kii. He is on OS 10.4.7 and is using the most recent Universal drivers, v1.4.1.

He is experiencing some crashes and buggy audio behavior that appear to be related to the being connected to the MOTU device (they have so far always disappeared when disconnecting from the MOTU).

In his console log, during startup, he gets:

2006-07-13 14:16:42.446 QLab[341] CFLog (21): dyld returns 2 when trying to load /System/Library/Extensions/AppleHDA.kext/Contents/ PlugIns/AppleHDAHALPlugIn.bundle/Contents/MacOS/AppleHDAHALPlugIn

repeated several times.

What does this mean? (I haven't been able to find a definitive description of this error code anywhere, just vague discussions of it possibly meaning that the code is not Universal--which seems weird, coming from an Apple bundle....)



FWIW, later there are some errors logged to the console from my code concerning a kAudioUnitErr_InvalidPropertyValue error occurring in the following call:

// Set the output device of _outDeviceUnit.
err = AudioUnitSetProperty( _outDeviceUnit,
			    kAudioOutputUnitProperty_CurrentDevice,
			    kAudioUnitScope_Global,
			    0,
			    &deviceID,
			    sizeof(deviceID));

Which I assume is connected, although my assumptions have bitten me on this list before.

Any insight on this?


--

Jeff Moore
Core Audio
Apple


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 >dyld returns 2 when loading AppleHDAHALPlugIn (From: Christopher Ashworth <email@hidden>)

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