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Reply To: Diagnostic query: Unexpected kernel panic on macOS Sequoia 15.1 after waking (1794671132)
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Ethan Carterphotolibraryd and bird (iCloud Drive) hold APFS snapshot references during background indexing, creating metadata contention on wake that manifests as IOPlatformPluginFamily timeouts when the storage tier (NVMe vs. Thunderbolt RAID) reports inconsistent IOService ready states. Run sudo fs_usage -w -f filesys mds_stores during a forced wake (pmset schedule wake "+1 minute") to catch snapshot mount latency spikes >500 ms. Temporarily disable “Optimize Mac Storage” in Photos → iCloud and sudo mdutil -i off / to isolate APFS snapshot enumeration as the bottleneck; if resolved, re-enable and exclude the Thunderbolt volume from Spotlight via mdutil -X /Volumes/ThunderboltVolume.