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Troubleshooting Kernel Panic in macOS Sonoma to Fix “Unable to Satisfy Mandatory Allocation” System Crash Error

The guide offers steps to fix the “Unable to satisfy mandatory allocation” kernel panic issue in macOS Sonoma.

If your Mac has ever abruptly restarted and displayed an ominous message stating that it happened due to a problem, you’ve encountered what’s known as a kernel panic. These unexpected system crashes can be quite unsettling, especially when your computer boots up with an error message that doesn’t provide much clarity for the average user.

In the latest macOS Sonoma, users have reported a particular kernel panic issue: “Unable to satisfy mandatory allocation.” This error is accompanied by a lengthy log filled with technical codes that might seem like gibberish to most. Some users face this problem regularly, often occurring during idle moments, while others experience it at random times while actively using their Mac.

Troubleshooting Kernel Panic in macOS Sonoma to Fix "Unable to Satisfy Mandatory Allocation" System Crash Error

So, what exactly is going on here? The error message, which appears in the log, may look something like this:

panic(cpu 0 caller 0xfffffe0017d2b6d0): "skr.umd.upipe:577:IDSClientChannelNexusOS": skr 0x0xfffffe2d38c34200 sg 0x0xfffffe2d396ce168 (idx 2) unable to satisfy mandatory allocation

At this point, you might be wondering what causes these kernel panics. In many cases, damaged or incompatible hardware, including external devices connected to your Mac, can be the culprits. Some users have already attempted to resolve the issue by disconnecting all external devices, but the problem persists.

If you find yourself in a similar predicament and are eager to resolve the “Unable to satisfy mandatory allocation” kernel panic issue in macOS Sonoma, you’re in the right place. This guide will walk you through the necessary steps to address the problem and get your Mac running smoothly again. So, let’s get started with the solution.

Resolving Kernel Panic Issue in Sonoma: Dealing with “Unable to Satisfy Mandatory Allocation”

If you’re encountering the “Unable to satisfy mandatory allocation” kernel panic issue on your Mac running Sonoma, the culprits for this problem are Safari and iPhone widgets. The solution is straightforward: you need to either remove or disable these widgets. Here’s a step-by-step guide to help you do it:

  1. Open Safari.
  2. Click on “Safari” in the top menu bar.
  3. Select “Settings.”
  4. In the Safari settings, go to the “Extensions” tab.
  5. Uncheck all the extensions listed there. Uncheck all the extensions listed there.
  6. Navigate to “System Settings.”
  7. Select “Desktop & Dock.”
  8. Within “Desktop & Dock,” locate the “Widgets” section.
  9. Turn off the option that says “Use iPhone widgets.” Turn off the option that says "Use iPhone widgets."

By following these simple steps, you can eliminate the factors contributing to the “Unable to satisfy mandatory allocation” kernel panic issue in Sonoma. This quick solution should help you get your Mac back on track and running smoothly.


In conclusion, by following the steps outlined in this guide, you should be able to resolve the “Unable to satisfy mandatory allocation” kernel panic issue in macOS Sonoma. If you have any questions or need further assistance with the steps provided, please don’t hesitate to ask. Feel free to leave your queries in the comments, and we’ll respond with a solution as soon as possible. Your Mac should be back to normal in no time.

Disclaimer: The information provided in this guide is for general informational purposes only. While we strive to offer accurate and up-to-date guidance, we do not make any warranties or representations of any kind regarding the accuracy, completeness, reliability, or suitability of the information for your particular situation. Any action you take based on the information presented here is at your own discretion and risk. We are not liable for any losses or damages arising from the use of this information. For precise advice or solutions tailored to your specific circumstances, it is advisable to consult with a qualified professional or seek assistance from the relevant device or software manufacturer.

Alex Lim is a certified IT Technical Support Architect with over 15 years of experience in designing, implementing, and troubleshooting complex IT systems and networks. He has worked for leading IT companies, such as Microsoft, IBM, and Cisco, providing technical support and solutions to clients across various industries and sectors. Alex has a bachelor’s degree in computer science from the National University of Singapore and a master’s degree in information security from the Massachusetts Institute of Technology. He is also the author of several best-selling books on IT technical support, such as The IT Technical Support Handbook and Troubleshooting IT Systems and Networks. Alex lives in Bandar, Johore, Malaysia with his wife and two chilrdren. You can reach him at [email protected] or follow him on Website | Twitter | Facebook

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