Reply To: Diagnostic query: Unexpected kernel panic on macOS Sequoia 15.1 after waking (1794658911)

[Alex Tanner]

The IOPlatformPluginFamily panic often masks a kernel collection (KC) symbol mismatch between com.apple.driver.IOPlatformPluginFamily and the XNU scheduler plugins (X86PlatformPlugin/ARMPlatformPlugin) after a delta update. Verify the active Kernel Collection hash integrity with kmutil showloaded --list-only | grep -E "IOPlatformPlugin|Thunderbolt" and cross-reference the uuid against /System/Library/KernelCollections/BootKernelExtensions.kc using kmutil inspect -k /System/Library/KernelCollections/BootKernelExtensions.kc --list. If the KC is dirty or shows a validation: failed status, force a clean rebuild via sudo kmutil install --force --volume / and reset the Secure Boot policy to “Full Security” in Startup Security Utility to purge any stale third-party driver signatures lingering in the AUXKC.

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