I've been getting this on several recent kernel revisions. Is it interesting? If so, I'm happy to help diagnose it. If not, can the message be killed or severely ratelimited? I'm getting so much of this that it tends to overflow the log ring. [ 287.344991] ehci-pci 0000:00:1d.0: power state changed by ACPI to D0 [ 287.445433] ehci-pci 0000:00:1d.0: setting latency timer to 64 [ 287.446255] ehci-pci 0000:00:1a.0: power state changed by ACPI to D0 [ 287.456094] ehci-pci 0000:00:1d.0: power state changed by ACPI to D3cold [ 287.547205] ehci-pci 0000:00:1a.0: setting latency timer to 64 [ 287.557890] ehci-pci 0000:00:1a.0: power state changed by ACPI to D3cold [ 290.126910] ehci-pci 0000:00:1d.0: power state changed by ACPI to D0 [ 290.227958] ehci-pci 0000:00:1d.0: setting latency timer to 64 [ 290.228416] ehci-pci 0000:00:1a.0: power state changed by ACPI to D0 [ 290.238749] ehci-pci 0000:00:1d.0: power state changed by ACPI to D3cold [ 290.328904] ehci-pci 0000:00:1a.0: setting latency timer to 64 [ 290.339565] ehci-pci 0000:00:1a.0: power state changed by ACPI to D3cold [ 292.214834] ehci-pci 0000:00:1d.0: power state changed by ACPI to D0 [ 292.315458] ehci-pci 0000:00:1d.0: setting latency timer to 64 [ 292.315908] ehci-pci 0000:00:1a.0: power state changed by ACPI to D0 [ 292.326262] ehci-pci 0000:00:1d.0: power state changed by ACPI to D3cold [ 292.416487] ehci-pci 0000:00:1a.0: setting latency timer to 64 [ 292.431075] ehci-pci 0000:00:1a.0: power state changed by ACPI to D3cold [ 295.458048] ehci-pci 0000:00:1d.0: power state changed by ACPI to D0 [ 295.558613] ehci-pci 0000:00:1d.0: setting latency timer to 64 -- To unsubscribe from this list: send the line "unsubscribe linux-usb" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html