AppleAVBAudio assertion information

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Created 3d

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Hi,

I'm currently developping an AVB hardware device, and I'm currently stuck because because the apple AVB stack is throwing me errors without much informations. Is there any way to have more information about these assertions and why they are happening ?

Furtermore is there any documentation on theAppleAVBAudio module ? It would be very handy

Here are the logs shown in the console:


Filtering the log data using "process == "coreaudiod""
Timestamp                       Thread     Type        Activity             PID    TTL  
2025-12-05 15:44:27.087043+0100 0x15ae74   Default     0x0                  12965  0    coreaudiod: (AppleAVBAudio) Assert: <private> (value 0x0 0), <private> file: <private>, line: 1533
2025-12-05 15:44:27.087545+0100 0x15ae74   Default     0x0                  12965  0    coreaudiod: (AppleAVBAudio) Assert: <private> (value 0x0 0), <private> file: <private>, line: 1533
2025-12-05 15:44:27.088043+0100 0x15ae74   Default     0x0                  12965  0    coreaudiod: (AppleAVBAudio) Assert: <private> (value 0x0 0), <private> file: <private>, line: 1533
2025-12-05 15:44:27.088546+0100 0x15ae74   Default     0x0                  12965  0    coreaudiod: (AppleAVBAudio) Assert: <private> (value 0x0 0), <private> file: <private>, line: 1533
2025-12-05 15:44:27.089043+0100 0x15ae74   Default     0x0                  12965  0    coreaudiod: (AppleAVBAudio) Assert: <private> (value 0x0 0), <private> file: <private>, line: 1533
2025-12-05 15:44:27.089545+0100 0x15ae74   Default     0x0                  12965  0    coreaudiod: (AppleAVBAudio) Assert: <private> (value 0x0 0), <private> file: <private>, line: 1533
2025-12-05 15:44:27.090043+0100 0x15ae74   Default     0x0                  12965  0    coreaudiod: (AppleAVBAudio) Assert: <private> (value 0x0 0), <private> file: <private>, line: 1533
2025-12-05 15:44:27.090545+0100 0x15ae74   Default     0x0                  12965  0    coreaudiod: (AppleAVBAudio) Assert: <private> (value 0x0 0), <private> file: <private>, line: 1533
2025-12-05 15:44:27.091043+0100 0x15ae74   Default     0x0                  12965  0    coreaudiod: (AppleAVBAudio) Assert: <private> (value 0x0 0), <private> file: <private>, line: 1533
2025-12-05 15:44:27.091545+0100 0x15ae74   Default     0x0                  12965  0    coreaudiod: (AppleAVBAudio) Assert: <private> (value 0x0 0), <private> file: <private>, line: 1533
2025-12-05 15:44:27.092044+0100 0x15ae74   Default     0x0                  12965  0    coreaudiod: (AppleAVBAudio) Assert: <private> (value 0x0 0), <private> file: <private>, line: 1533
2025-12-05 15:44:27.092544+0100 0x15ae74   Default     0x0                  12965  0    coreaudiod: (AppleAVBAudio) Assert: <private> (value 0x0 0), <private> file: <private>, line: 1533
2025-12-05 15:44:27.093044+0100 0x15ae74   Default     0x0                  12965  0    coreaudiod: (AppleAVBAudio) Assert: <private> (value 0x0 0), <private> file: <private>, line: 1533
2025-12-05 15:44:27.093552+0100 0x15ae74   Default     0x0                  12965  0    coreaudiod: (AppleAVBAudio) Assert: <private> (value 0x0 0), <private> file: <private>, line: 1533
2025-12-05 15:44:27.094050+0100 0x15ae74   Default     0x0                  12965  0    coreaudiod: (AppleAVBAudio) Assert: <private> (value 0x0 0), <private> file: <private>, line: 1533
2025-12-05 15:44:27.094543+0100 0x15ae74   Default     0x0                  12965  0    coreaudiod: (AppleAVBAudio) Assert: <private> (value 0x0 0), <private> file: <private>, line: 1533

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Answer 1

DTS Engineer OP

Apple

2d

I can’t really help with the AVB side of this, so I’m hoping someone else will chime in on that front. However, I have insight into the logging.

The assert you’re hitting shows a bunch of <private> values because:

The log point indicates that the data is private.
Our system don’t record private data by default.

Presuming that you’re on the Mac, you can configure the system to record that data. See Recording Private Data in the System Log.

If this works and you’re able to unmask all those <private> values, please post the results here and I’ll take another look.

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Quinn “The Eskimo!” @ Developer Technical Support @ Apple
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