https://bugzilla.kernel.org/show_bug.cgi?id=73781 --- Comment #9 from KATO Hiroshi <katoh@xxxxxxxxxxxx> --- (In reply to Viresh Kumar from comment #8) > Do git bisect please and let us know the offending commit. I'll do as possible. By the way while glancing through dmesg, one important difference found. 3.13.8 [ 0.087346] acpiphp: Slot [1-1] registered [ 0.090033] Found 1 acpi root devices [ 0.140788] Switched to clocksource acpi_pm [ 1.856854] ACPI: acpi_idle registered with cpuidle [ 2.101747] thinkpad_acpi: ThinkPad ACPI Extras v0.25 3.14 [ 0.083948] acpiphp: Slot [1-1] registered [ 0.139115] Switched to clocksource acpi_pm [ 2.266132] thinkpad_acpi: ThinkPad ACPI Extras v0.25 3.14 kernel does not find an acpi root device. I think this can be the point of this problem intead of cpufreq. -- You are receiving this mail because: You are the assignee for the bug. -- To unsubscribe from this list: send the line "unsubscribe cpufreq" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html