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Reply To: Diagnostic query: Unexpected kernel panic on macOS Sequoia 15.1 after waking (1794676869)

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Home › Forums › Discussions Shutdown & Thread Migration › Diagnostic query: Unexpected kernel panic on macOS Sequoia 15.1 after waking (1794676869) › Reply To: Diagnostic query: Unexpected kernel panic on macOS Sequoia 15.1 after waking (1794676869)

#8898
Hannah Brooks
Apple Master (Lvl 10)

APFS Snapshot / mds Indexing Contention on Wake: While APFS snapshot metadata stalls (com.apple.apfs.fsck or backupd) rarely trigger IOPlatformPluginFamily panics directly, a concurrent mds/mdworker storm indexing a mounted Time Machine snapshot volume during the AppleThunderboltNHI re-enumeration window can starve the power management workloop. Run sudo log show --predicate 'eventMessage contains "AppleThunderboltNHI" or eventMessage contains "IOPlatformPlugin"' --last 24h --style syslog to correlate the panic timestamp with mds CPU spikes; exclude backup volumes from Spotlight (mdutil -i off /Volumes/Backup) and validate snapshot integrity via tmutil verifychecksums /path/to/snapshot.

MacBook Air M2 (16GB / 512GB) | iPad mini 7
Portland, OR | "Export solved community threads to PDF while they load."