My Macbook Air M4 suddenly restart - panic(cpu 3 caller 0xfffffe004a9b9ec4)

This is the first time it restarts like this. Pls letme know what I should do? tysm!



The detailed message

panic(cpu 3 caller 0xfffffe004a9b9ec4): AOP crash of unknown type 0x209 - nested DATA ABORT @ 0x010a36d4 pc=0x000000000101c5dc Exception class=0x3c (Unknown), IL=1, iss=0x5500 far=0x0000000390c00604 - main(4) -

user handlers:

MacBook Air 13″, macOS 15.6

Posted on Nov 1, 2025 8:41 AM

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Question marked as Top-ranking reply

Posted on Nov 1, 2025 9:20 AM

  • If this is a one time event, it is not worth the effort to troubleshoot as you won't know if anything you have done was the cause/resolution of the problem. It is really only necessary to investigate when it happens frequently or you can determine a specific event when the crash occurs.
  • Is it happening during sleep?
  • Do you have external devices connected, such as HD or third party mouse?
  • Does it happen while in Safe Mode?
  • Hardware diagnostics can be performed by you, but only marginally successful in finding a cause to a random crash.

Use Apple Diagnostics to test your Mac - Apple Support


The AOP (Always On Processor) crash has been seen when a timing issue occurs between a USB device and your computer that is usually associated when computer is sleeping or wakes up from sleep to communicate with the device. It may be possible to link it to a specific USB device, where you could look further to see if a driver needs updating or adjust your sleep settings found under both the Lock Screen and Battery panels of System Settings. All this is difficult to troubleshoot with just a single crash.


I haven't seen the AOP crash related to a specific process running on startup from a software install, but there are types of software that are known to cause crashes due to a conflict with the OS. These are the Cleaners, such as CleanMyMac, Antivirus, and some VPN or Endpoint Security programs. The best way to see what is running on startup that could be causing a conflict is by posting the free EtreCheck report using the Additional Text option when posting. The report contains no personal information and also has a little more information about recent crashes.

How to use the Add Text Feature When Post… - Apple Community

1 reply
Question marked as Top-ranking reply

Nov 1, 2025 9:20 AM in response to vmhuong

  • If this is a one time event, it is not worth the effort to troubleshoot as you won't know if anything you have done was the cause/resolution of the problem. It is really only necessary to investigate when it happens frequently or you can determine a specific event when the crash occurs.
  • Is it happening during sleep?
  • Do you have external devices connected, such as HD or third party mouse?
  • Does it happen while in Safe Mode?
  • Hardware diagnostics can be performed by you, but only marginally successful in finding a cause to a random crash.

Use Apple Diagnostics to test your Mac - Apple Support


The AOP (Always On Processor) crash has been seen when a timing issue occurs between a USB device and your computer that is usually associated when computer is sleeping or wakes up from sleep to communicate with the device. It may be possible to link it to a specific USB device, where you could look further to see if a driver needs updating or adjust your sleep settings found under both the Lock Screen and Battery panels of System Settings. All this is difficult to troubleshoot with just a single crash.


I haven't seen the AOP crash related to a specific process running on startup from a software install, but there are types of software that are known to cause crashes due to a conflict with the OS. These are the Cleaners, such as CleanMyMac, Antivirus, and some VPN or Endpoint Security programs. The best way to see what is running on startup that could be causing a conflict is by posting the free EtreCheck report using the Additional Text option when posting. The report contains no personal information and also has a little more information about recent crashes.

How to use the Add Text Feature When Post… - Apple Community

My Macbook Air M4 suddenly restart - panic(cpu 3 caller 0xfffffe004a9b9ec4)

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