Re: 2.6.31.4: WARNING: at arch/x86/kernel/hpet.c:390 hpet_next_event+0x70/0x80()

Dave Jones
2009-11-11T19:50:16Z

On Sun, Nov 08, 2009 at 09:35:33AM -0500, Justin Piszcz wrote:
> Motherboard: Intel DP55KG
> BIOS: 3878P (latest as of 11/08/09)
>
> When CPUFREQ is compiled in the kernel:
>
> [ 3.377946] [<ffffffff81043180>] ? hpet_next_event+0x70/0x80
> [ 3.377947] [<ffffffff81043180>] ? hpet_next_event+0x70/0x80
> [ 3.377950] [<ffffffff810564d4>] ? warn_slowpath_common+0x74/0xd0
> [ 3.377952] [<ffffffff81043180>] ? hpet_next_event+0x70/0x80
> [ 3.377954] [<ffffffff81076fd6>] ? tick_dev_program_event+0x36/0xb0
> [ 3.377956] [<ffffffff810769b9>] ? tick_broadcast_oneshot_control+0x119/0x120
> [ 3.377957] [<ffffffff8107617d>] ? tick_notify+0x22d/0x420
> [ 3.377960] [<ffffffff8106f737>] ? notifier_call_chain+0x37/0x70
> [ 3.377961] [<ffffffff81075a6b>] ? clockevents_notify+0x2b/0x90
> [ 3.377964] [<ffffffff812438a8>] ? acpi_idle_enter_bm+0x15f/0x2d3
> [ 3.377966] [<ffffffff8124373e>] ? acpi_idle_enter_c1+0xf1/0xfc
> [ 3.377969] [<ffffffff812e84ea>] ? cpuidle_idle_call+0xba/0x120
> [ 3.377972] [<ffffffff8102b830>] ? cpu_idle+0x60/0xa0
> [ 3.377975] ---[ end trace 222f8db6d7ba1b9b ]---

This also happens if cpufreq is a module ?
There's no cpufreq code in that trace, so I'm puzzled.

> [ 3.883303] cpufreq-core: trying to register driver acpi-cpufreq
> [ 3.883305] cpufreq-core: adding CPU 0
> [ 3.883348] cpufreq-core: initialization failed
> [ 3.883349] cpufreq-core: adding CPU 1
> [ 3.883390] cpufreq-core: initialization failed
> [ 3.883391] cpufreq-core: adding CPU 2
> [ 3.883432] cpufreq-core: initialization failed
> [ 3.883433] cpufreq-core: adding CPU 3
> [ 3.883473] cpufreq-core: initialization failed
> [ 3.883474] cpufreq-core: adding CPU 4
> [ 3.883515] cpufreq-core: initialization failed
> [ 3.883516] cpufreq-core: adding CPU 5
> [ 3.883556] cpufreq-core: initialization failed
> [ 3.883557] cpufreq-core: adding CPU 6
> [ 3.883598] cpufreq-core: initialization failed
> [ 3.883599] cpufreq-core: adding CPU 7
> [ 3.883639] cpufreq-core: initialization failed
> [ 3.883640] cpufreq-core: no CPU initialized for driver acpi-cpufreq

Does acpi-cpufreq work when built as a module ?
If it does, seeing the differences in output from booting with cpufreq.debug=7
might yield some clues.

Dave