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Last active May 8, 2023 14:57
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DS1 audio dropout console logs MacBook Pro T2
DS1 audio errors
default 21:07:04.724255-0500 kernel + IOAudioEngine[<private>]::pauseAudioEngine()
default 21:07:04.726351-0500 kernel +-IOAudioEngine[<private>]::setState(0x2. oldState=0x1)
default 21:07:04.726613-0500 kernel + IOAudioStream[<private>]::removeClient(<private>)
error 21:07:04.726641-0500 coreaudiod HALS_IOA1Engine::EndWriting: got an error from the kernel trap, Error: 0xE00002D7
default 21:07:04.726632-0500 kernel +-IOAudioStream[<private>]::safeLogError kErrorLogDumpCounters mStreamErrorCountsUpdated=0
default 21:07:04.726736-0500 Music HALC_ProxyIOContext::IOWorkLoop: skipping cycle due to overload
default 21:07:04.726634-0500 kernel - IOAudioStream[<private>]::removeClient(<private>)
default 21:07:04.726639-0500 kernel +- IOAudioEngine[<private>]::decrementActiveUserClients() - 0 returns 0x0
default 21:07:04.726641-0500 kernel +- IOAudioEngine[<private>]::stopClient(<private>) returns 0x0
default 21:07:04.726645-0500 kernel +- IOAudioEngineUserClient[<private>]::setOnline(0)
default 21:07:04.726655-0500 kernel - IOAudioEngine[<private>]::pauseAudioEngine() returns 0x0
default 21:07:04.726658-0500 kernel + IOAudioEngine[<private>]::resumeAudioEngine()
default 21:07:04.726660-0500 kernel +-IOAudioEngine[<private>]::setState(0x3. oldState=0x2)
default 21:07:04.726665-0500 kernel send commandWakeup on resume for [<private>]
default 21:07:04.726667-0500 kernel - IOAudioEngine[<private>]::resumeAudioEngine() returns 0x0
default 21:07:04.727180-0500 kernel + IOAudioEngineUserClient::externalMethod, selector=0x3, arg0 0x0, arg1 0x0, arg2 0x0 arg3 0x0
default 21:07:04.727184-0500 kernel scalarInputCount=0x0 structureInputSize 0x0, scalarOutputCount 0x0, structureOutputSize 0x0
default 21:07:04.727188-0500 kernel + IOAudioEngineUserClient[<private>]::startClient() - 0
default 21:07:04.727190-0500 kernel audioEngine && !isInactive(). State = 3
default 21:07:04.727190-0500 kernel audioEngine->getState() != kIOAudioEnginePaused
default 21:07:04.727194-0500 kernel +- IOAudioEngineUserClient[<private>]::setOnline(1)
default 21:07:04.727195-0500 kernel !isOnline() setting online
default 21:07:04.727196-0500 kernel + IOAudioEngine[<private>]::startClient(<private>)
default 21:07:04.727199-0500 kernel + IOAudioEngine[<private>]::incrementActiveUserClients() - 0
default 21:07:04.727201-0500 kernel + IOAudioEngine[<private>]::startAudioEngine(state = 3)
default 21:07:04.727202-0500 kernel - IOAudioEngine[<private>]::stopEngineAtPosition(0,0)
default 21:07:04.727205-0500 kernel +- IOAudioEngine[<private>]::resetStatusBuffer()
default 21:07:04.729614-0500 kernel +-IOAudioEngine[<private>]::setState(0x1. oldState=0x3)
default 21:07:04.729624-0500 kernel - IOAudioEngine[<private>]::getTimerInterval()
default 21:07:04.729631-0500 kernel - IOAudioEngine[<private>]::startAudioEngine() returns 0x0
default 21:07:04.729633-0500 kernel - IOAudioEngine[<private>]::incrementActiveUserClients() - 1 returns 0
default 21:07:04.729635-0500 kernel - IOAudioEngine[<private>]::startClient(<private>) returns 0x0
default 21:07:04.729635-0500 kernel engine started
default 21:07:04.729636-0500 kernel bufferSet <private>
default 21:07:04.729639-0500 kernel output clientBuffer <private>
default 21:07:04.729640-0500 kernel + IOAudioStream[<private>]::addClient(<private>)
default 21:07:04.729643-0500 kernel - IOAudioStream[<private>]::addClient(<private>) returns 0x0
default 21:07:04.729644-0500 kernel - IOAudioEngineUserClient[<private>]::startClient() - 1 returns 0x0
default 21:07:04.729646-0500 kernel - IOAudioEngineUserClient::externalMethod returns 0x0
error 21:07:04.737695-0500 coreaudiod HALS_IOA1Engine::EndWriting: got an error from the kernel trap, Error: 0xE00002D7
default 21:07:04.737837-0500 Music HALC_ProxyIOContext::IOWorkLoop: skipping cycle due to overload
error 21:07:04.748869-0500 coreaudiod HALS_IOA1Engine::EndWriting: got an error from the kernel trap, Error: 0xE00002D7
default 21:07:04.749006-0500 Music HALC_ProxyIOContext::IOWorkLoop: skipping cycle due to overload
error 21:07:04.760000-0500 coreaudiod HALS_IOA1Engine::EndWriting: got an error from the kernel trap, Error: 0xE00002D7
default 21:07:04.760150-0500 Music HALC_ProxyIOContext::IOWorkLoop: skipping cycle due to overload
error 21:07:04.771111-0500 coreaudiod HALS_IOA1Engine::EndWriting: got an error from the kernel trap, Error: 0xE00002D7
default 21:07:04.771250-0500 Music HALC_ProxyIOContext::IOWorkLoop: skipping cycle due to overload
error 21:07:04.782196-0500 coreaudiod HALS_IOA1Engine::EndWriting: got an error from the kernel trap, Error: 0xE00002D7
default 21:07:04.782330-0500 Music HALC_ProxyIOContext::IOWorkLoop: skipping cycle due to overload
error 21:07:04.793312-0500 coreaudiod HALS_IOA1Engine::EndWriting: got an error from the kernel trap, Error: 0xE00002D7
default 21:07:04.793406-0500 Music HALC_ProxyIOContext::IOWorkLoop: skipping cycle due to overload
error 21:07:04.804387-0500 coreaudiod HALS_IOA1Engine::EndWriting: got an error from the kernel trap, Error: 0xE00002D7
default 21:07:04.804531-0500 Music HALC_ProxyIOContext::IOWorkLoop: skipping cycle due to overload
error 21:07:04.815470-0500 coreaudiod HALS_IOA1Engine::EndWriting: got an error from the kernel trap, Error: 0xE00002D7
default 21:07:04.815604-0500 Music HALC_ProxyIOContext::IOWorkLoop: skipping cycle due to overload
error 21:07:04.826555-0500 coreaudiod HALS_IOA1Engine::EndWriting: got an error from the kernel trap, Error: 0xE00002D7
default 21:07:04.826692-0500 Music HALC_ProxyIOContext::IOWorkLoop: skipping cycle due to overload
error 21:07:04.837635-0500 coreaudiod HALS_IOA1Engine::EndWriting: got an error from the kernel trap, Error: 0xE00002D7
default 21:07:04.837758-0500 Music HALC_ProxyIOContext::IOWorkLoop: skipping cycle due to overload
error 21:07:04.848721-0500 coreaudiod HALS_IOA1Engine::EndWriting: got an error from the kernel trap, Error: 0xE00002D7
default 21:07:04.848855-0500 Music HALC_ProxyIOContext::IOWorkLoop: skipping cycle due to overload
default 21:07:04.857903-0500 kernel USB Sound assertion (Resetting engine due to error returned in Read Handler) in /AppleInternal/BuildRoot/Library/Caches/com.apple.xbs/Sources/AppleUSBAudio/AppleUSBAudio-401.4/KEXT/AppleUSBAudioDevice.cpp at line 6644
error 21:07:04.859740-0500 coreaudiod HALS_IOA1Engine::EndWriting: got an error from the kernel trap, Error: 0xE00002D7
default 21:07:04.859838-0500 Music HALC_ProxyIOContext::IOWorkLoop: skipping cycle due to overload
error 21:07:04.870801-0500 coreaudiod HALS_IOA1Engine::EndWriting: got an error from the kernel trap, Error: 0xE00002D7
default 21:07:04.870923-0500 Music HALC_ProxyIOContext::IOWorkLoop: skipping cycle due to overload
error 21:07:04.881825-0500 coreaudiod HALS_IOA1Engine::EndWriting: got an error from the kernel trap, Error: 0xE00002D7
default 21:07:04.881922-0500 Music HALC_ProxyIOContext::IOWorkLoop: skipping cycle due to overload
error 21:07:04.892878-0500 coreaudiod HALS_IOA1Engine::EndWriting: got an error from the kernel trap, Error: 0xE00002D7
default 21:07:04.892973-0500 Music HALC_ProxyIOContext::IOWorkLoop: skipping cycle due to overload
error 21:07:04.903826-0500 coreaudiod HALS_IOA1Engine::EndWriting: got an error from the kernel trap, Error: 0xE00002D7
default 21:07:04.903923-0500 Music HALC_ProxyIOContext::IOWorkLoop: skipping cycle due to overload
error 21:07:04.914894-0500 coreaudiod HALS_IOA1Engine::EndWriting: got an error from the kernel trap, Error: 0xE00002D7
default 21:07:04.914988-0500 Music HALC_ProxyIOContext::IOWorkLoop: skipping cycle due to overload
error 21:07:04.925899-0500 coreaudiod HALS_IOA1Engine::EndWriting: got an error from the kernel trap, Error: 0xE00002D7
default 21:07:04.925997-0500 Music HALC_ProxyIOContext::IOWorkLoop: skipping cycle due to overload
error 21:07:04.936943-0500 coreaudiod HALS_IOA1Engine::EndWriting: got an error from the kernel trap, Error: 0xE00002D7
default 21:07:04.937040-0500 Music HALC_ProxyIOContext::IOWorkLoop: skipping cycle due to overload
error 21:07:04.947897-0500 coreaudiod HALS_IOA1Engine::EndWriting: got an error from the kernel trap, Error: 0xE00002D7
default 21:07:04.947993-0500 Music HALC_ProxyIOContext::IOWorkLoop: skipping cycle due to overload
error 21:07:04.958960-0500 coreaudiod HALS_IOA1Engine::EndWriting: got an error from the kernel trap, Error: 0xE00002D7
default 21:07:04.959053-0500 Music HALC_ProxyIOContext::IOWorkLoop: skipping cycle due to overload
error 21:07:04.969897-0500 coreaudiod HALS_IOA1Engine::EndWriting: got an error from the kernel trap, Error: 0xE00002D7
default 21:07:04.970052-0500 Music HALC_ProxyIOContext::IOWorkLoop: skipping cycle due to overload
error 21:07:04.980957-0500 coreaudiod HALS_IOA1Engine::EndWriting: got an error from the kernel trap, Error: 0xE00002D7
default 21:07:04.981053-0500 Music HALC_ProxyIOContext::IOWorkLoop: skipping cycle due to overload
error 21:07:04.991899-0500 coreaudiod HALS_IOA1Engine::EndWriting: got an error from the kernel trap, Error: 0xE00002D7
default 21:07:04.991995-0500 Music HALC_ProxyIOContext::IOWorkLoop: skipping cycle due to overload
error 21:07:05.002888-0500 coreaudiod HALS_IOA1Engine::EndWriting: got an error from the kernel trap, Error: 0xE00002D7
default 21:07:05.002979-0500 Music HALC_ProxyIOContext::IOWorkLoop: skipping cycle due to overload
error 21:07:05.013778-0500 coreaudiod HALS_IOA1Engine::EndWriting: got an error from the kernel trap, Error: 0xE00002D7
default 21:07:05.013839-0500 Music HALC_ProxyIOContext::IOWorkLoop: skipping cycle due to overload
error 21:07:05.024802-0500 coreaudiod HALS_IOA1Engine::EndWriting: got an error from the kernel trap, Error: 0xE00002D7
default 21:07:05.024919-0500 Music HALC_ProxyIOContext::IOWorkLoop: skipping cycle due to overload
error 21:07:05.035830-0500 coreaudiod HALS_IOA1Engine::EndWriting: got an error from the kernel trap, Error: 0xE00002D7
default 21:07:05.035926-0500 Music HALC_ProxyIOContext::IOWorkLoop: skipping cycle due to overload
error 21:07:05.046879-0500 coreaudiod HALS_IOA1Engine::EndWriting: got an error from the kernel trap, Error: 0xE00002D7
default 21:07:05.046976-0500 Music HALC_ProxyIOContext::IOWorkLoop: skipping cycle due to overload
error 21:07:05.057818-0500 coreaudiod HALS_IOA1Engine::EndWriting: got an error from the kernel trap, Error: 0xE00002D7
default 21:07:05.057914-0500 Music HALC_ProxyIOContext::IOWorkLoop: skipping cycle due to overload
error 21:07:05.068897-0500 coreaudiod HALS_IOA1Engine::EndWriting: got an error from the kernel trap, Error: 0xE00002D7
default 21:07:05.068995-0500 Music HALC_ProxyIOContext::IOWorkLoop: skipping cycle due to overload
error 21:07:05.079910-0500 coreaudiod HALS_IOA1Engine::EndWriting: got an error from the kernel trap, Error: 0xE00002D7
default 21:07:05.080013-0500 Music HALC_ProxyIOContext::IOWorkLoop: skipping cycle due to overload
error 21:07:05.090908-0500 coreaudiod HALS_IOA1Engine::EndWriting: got an error from the kernel trap, Error: 0xE00002D7
default 21:07:05.091003-0500 Music HALC_ProxyIOContext::IOWorkLoop: skipping cycle due to overload
default 21:07:05.102746-0500 coreaudiod Audio IO Overload inputs: '<private>' outputs: '<private>' cause: 'Unknown' prewarming: no recovering: no
default 21:07:05.102926-0500 coreaudiod CAReportingClient.mm:508 message {
HostApplicationDisplayID = "com.apple.Music";
cause = Unknown;
deadline = 2615019;
"input_device_source_list" = Unknown;
"input_device_transport_list" = USB;
"input_device_uid_list" = "AppleUSBAudioEngine:Denon DJ:DS1:000:1,2";
"io_buffer_size" = 512;
"io_cycle" = 1;
"is_prewarming" = 0;
"is_recovering" = 0;
"issue_type" = overload;
lateness = "-535";
"output_device_source_list" = Unknown;
"output_device_transport_list" = USB;
"output_device_uid_list" = "AppleUSBAudioEngine:Denon DJ:DS1:000:1,2";
}: (null)
@nickmacavoy
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I've sent a bunch of feedback within Feedback Assistance to help Apple remedy this – logs, ktraces, from many different instances and situations. I received a response from a person at Apple in February 2023 and sent them back some additional information.

I recommend you all submit New Feedback within Feedback Assistant to help push this along. Make sure that you include a ktrace while the stutters/drop-outs are happening as it'll give them as much information as possible to work with from the outset.

  1. Check if the problem still occurs. If so:
  2. Start a .ktrace capture file in Terminal.app before plugging in the device: sudo ktrace artrace -- -c
  3. Plug in the device.
  4. Try to reproduce the problem.
  5. Press control+C to stop the capture.
  6. Attach the .ktrace file to the feedback report. Thanks!

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