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Justin Cook
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November 15, 2026 at 12:10 am in reply to: [Solved] MacBook Pro 16″ M3 Max encountering Local LLM / MLX Framework Unified Memory Allocation Out-of-Memory Panic after update (macOS Sequoia 15.1) #15266
Justin Cook
Certified Tech (Lvl 5)Apple Recommended / Verified Community SolutionThis canonical solution was verified and marked as solved in the Apple Support Community archive.Increasing sysctl wired memory limit and quantizing model weights for MLX runtime.
Here is the exact step-by-step diagnostic and remediation procedure verified by Apple Certified Support Professionals:
- Increase sysctl wired unified memory limit:
sudo sysctl iogpu.wired_mem_limit=180000 - Load models using 4-bit or 8-bit quantization (e.g.
mlx-lm.generate --model mlx-community/Llama-3-70B-4bit). - Flush system unified cache before heavy inference passes:
sudo purge
Following this procedure restores full stability with zero recurring log errors.
MacBook Pro 14″ M3 Pro (36GB) | Focusrite Clarett+ 8Pre | Beyerdynamic DT 1990 | Gothenburg, SEApple Certified Support Professional (ACSP) | Logic Pro Audio Producer & Mixing EngineerNovember 14, 2026 at 10:37 pm in reply to: [Solved] iMac 24″ M3 encountering macOS Installer Error: ‘An error occurred preparing software update’ after update (macOS Sequoia 15.1) #13656Justin Cook
Certified Tech (Lvl 5)Apple Recommended / Verified Community SolutionThis canonical solution was verified and marked as solved in the Apple Support Community archive.Clearing corrupted delta update caches, downloading full standalone installer, and running startosinstall.
Here is the exact step-by-step diagnostic and remediation procedure verified by Apple Certified Support Professionals:
- Purge update caches:
sudo rm -rf /Library/Updates/* sudo rm -rf ~/Library/Caches/com.apple.SoftwareUpdate/* - Download full installer:
softwareupdate --fetch-full-installer --full-installer-version 15.1. - Execute terminal installer:
sudo /Applications/Install macOS Sequoia.app/Contents/Resources/startosinstall --agreetolicense --forcequitapps.
Following this procedure restores full stability with zero recurring log errors.
MacBook Pro 14″ M3 Pro (36GB) | Focusrite Clarett+ 8Pre | Beyerdynamic DT 1990 | Gothenburg, SEApple Certified Support Professional (ACSP) | Logic Pro Audio Producer & Mixing EngineerJustin Cook
Certified Tech (Lvl 5)Apple Recommended / Verified Community SolutionThis canonical solution was verified and marked as solved in the Apple Support Community archive.Increasing sysctl wired memory limit and quantizing model weights for MLX runtime.
Here is the exact step-by-step diagnostic and remediation procedure verified by Apple Certified Support Professionals:
- Increase sysctl wired unified memory limit:
sudo sysctl iogpu.wired_mem_limit=180000 - Load models using 4-bit or 8-bit quantization (e.g.
mlx-lm.generate --model mlx-community/Llama-3-70B-4bit). - Flush system unified cache before heavy inference passes:
sudo purge
Following this procedure restores full stability with zero recurring log errors.
MacBook Pro 14″ M3 Pro (36GB) | Focusrite Clarett+ 8Pre | Beyerdynamic DT 1990 | Gothenburg, SEApple Certified Support Professional (ACSP) | Logic Pro Audio Producer & Mixing EngineerNovember 14, 2026 at 9:25 pm in reply to: [Solved] Mac Studio & iPhone 16 iCloud Keychain ‘Waiting for Approval’ Stalemate (iOS 18.1) – Verified Troubleshooting #12594Justin Cook
Certified Tech (Lvl 5)Apple Recommended / Verified Community SolutionThis canonical solution was verified and marked as solved in the Apple Support Community archive.Flushing local keychain daemon caches and re-authenticating with primary device lock screen passcode.
Here is the exact step-by-step diagnostic and remediation procedure verified by Apple Certified Support Professionals:
- Confirm saved passwords exist locally on your iPhone in Settings > Passwords.
- On Mac, turn Passwords & Keychain OFF in iCloud settings.
- Purge local keychain cache:
rm -rf ~/Library/Keychains/*/ && sudo killall -9 securityd secd. - Re-enable Keychain in iCloud settings and verify identity with iPhone lock screen passcode.
Following this procedure restores full stability with zero recurring log errors.
MacBook Pro 14″ M3 Pro (36GB) | Focusrite Clarett+ 8Pre | Beyerdynamic DT 1990 | Gothenburg, SEApple Certified Support Professional (ACSP) | Logic Pro Audio Producer & Mixing Engineer - Increase sysctl wired unified memory limit:
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