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Reply To: Diagnostic query: Unexpected kernel panic on macOS Sequoia 15.1 after waking (1794718826)

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Home › Forums › Discussions Shutdown & Thread Migration › Diagnostic query: Unexpected kernel panic on macOS Sequoia 15.1 after waking (1794718826) › Reply To: Diagnostic query: Unexpected kernel panic on macOS Sequoia 15.1 after waking (1794718826)

#20022
Owen Parker
Apple Master (Lvl 10)

If the panic correlates with a specific dock port, check log show --predicate 'subsystem == "com.apple.iokit.IOThunderboltFamily"' --last 1h | grep -i "liquid|corrosion|overtemp"; the NHI controller exposes a dedicated ADC channel for port thermals/liquid detection that can falsely assert kIOThunderboltPortStatusFault during wake if the dock’s PD controller leaks VBUS onto CC lines. Verify the dock’s E-Marker cable integrity with ioreg -r -c AppleThunderboltNHI | grep -i "port.*status"—a 0x8000 bitmask indicates a hardware fault condition suppressing the wake vector. If present, isolate by testing a passive TBT3 cable (no active retimer) to rule out the dock’s retimer firmware.

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