* Re: [Bug #11841] plenty of line "ACPI: EC: non-query interrupt received, switching to interrupt mode" in dmesg
[not found] ` <r6ljwccagm.fsf@skye.inf.phy.cam.ac.uk>
@ 2008-10-26 10:29 ` Alan Jenkins
0 siblings, 0 replies; only message in thread
From: Alan Jenkins @ 2008-10-26 10:29 UTC (permalink / raw)
To: Sanjoy Mahajan
Cc: Rafael J. Wysocki, Linux Kernel Mailing List, Francois Valenduc,
linux acpi
Sanjoy Mahajan wrote:
>> The following bug entry is on the current list of known regressions
>> from 2.6.27.
>
>> Bug-Entry : http://bugzilla.kernel.org/show_bug.cgi?id=11841
>> Subject : plenty of line "ACPI: EC: non-query interrupt received, switching to interrupt mode" in dmesg
>
> I see these messages already with 2.6.27.3:
>
> # grep non-query /var/log/dmesg
> [ 0.205977] ACPI: EC: non-query interrupt received, switching to interrupt mode
>
> There are 9 more occurrences in the current ring buffer:
> # dmesg |grep non-query | wc -l
> 9
>
> Each one happens right after waking from S3 sleep, for example:
>
> [70168.288590] CPU1 is up
> [70168.288594] ACPI: Waking up from system sleep state S3
> [70169.624254] ACPI: EC: non-query interrupt received, switching to interrupt mode
>
> The setup is a TP T60 w/ Intel graphics, wireless (i.e. no taint),
> Debian unstable, but with vanilla kernel 2.6.27.3.
>
> -Sanjoy
It's expected that you see that message on both boot and every wakeup from suspend.
If you look at the dmesg Francios' posted, his issue is that there are _floods_ of this message during boot. That's not expected :).
Regards
Alan
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