Re: [ 11.333737] is this a ghost?

From: Justin P. Mattock
Date: Tue Nov 18 2008 - 11:29:57 EST


On Tue, 2008-11-18 at 11:15 +0000, Alan Jenkins wrote:
> On 11/18/08, Justin P. Mattock <justinmattock@xxxxxxxxx> wrote:
> > in dmesg I see:
> > [ 11.333737]
> > but nothing else.
> > ---------------(cut)-----------------
> > [ 11.247147] Monitor-Mwait will be used to enter C-1 state
> > [ 11.247151] Monitor-Mwait will be used to enter C-2 state
> > [ 11.247154] Monitor-Mwait will be used to enter C-3 state
> > [ 11.247671] ACPI: CPU0 (power states: C1[C1] C2[C2] C3[C3])
> > [ 11.247996] processor ACPI_CPU:00: registered as cooling_device0
> > [ 11.248008] ACPI: Processor [CPU0] (supports 8 throttling states)
> > [ 11.306465] ACPI: SSDT 3FEB8F10, 0087 (r1 APPLE Cpu1Ist 3000
> > INTL 20050309)<7>power_supply ADP1: No power supply yet
>
> Look at this last line. The "<7>" is a priority marker. Normally it
> marks the start of a line, and should be hidden. So you seem to be
> missing a line break just after "20050309)"...
>
> > [ 11.306831] power_supply ADP1: power_supply_changed
> > [ 11.306839] ACPI: AC Adapter [ADP1] (on-line)
> > [ 11.333737] <------------what's with this!!!
>
> ...which seems to be delayed and reappears here?
>
> > [ 11.342937] power_supply ADP1: power_supply_changed_work
> > [ 11.351901] power_supply ADP1: power_supply_update_gen_leds 1
> > [ 11.351916] ACPI: SSDT 3FEB7F10, 0085 (r1 APPLE Cpu1Cst 3000
> > INTL 20050309)
>
> > if you need to see the full dmesg I can attach..
> > I've seen this happen on a random.
>
> I guess you have a multicore processor (or some other sort of SMP), right?
>
> I think kernel messages are not completely synchronized by design, for
> reliability reasons. (e.g. to make sure critical error messages /
> backtraces can get through on a dying system).


Cool.
makes good sense to me,
As long as it's not something that shouldn't be there,
or something that's broken. As for this happening again
looking at dmesg nothing, all synchronized.
Seems to randomly show itself.

regards;

--
Justin P. Mattock <justinmattock@xxxxxxxxx>

--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/