Re: Re: Kernel is using a lot of CPU

In reply to: Eugene Grosbein : "Re: Kernel is using a lot of CPU"
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From: Nikos Vassiliadis <nvass_at_gmx.com>
Date: Mon, 30 Jan 2023 17:22:30 UTC

> Sent: Monday, January 30, 2023 at 3:47 PM
> From: "Eugene Grosbein" <eugen@grosbein.net>
> To: "Nikos Vassiliadis" <nvass@gmx.com>
> Cc: "Mike Karels" <mike@karels.net>, freebsd-stable@freebsd.org
> Subject: Re: Kernel is using a lot of CPU
> 
> 30.01.2023 21:27, Nikos Vassiliadis wrote:
> 
> > 12.4 autoloaded acpi_wmi with dubious results:
> > 
> > Autoloading module: acpi_wmi
> > acpi_wmi0: <ACPI-WMI mapping> on acpi0
> > acpi_wmi0: cannot find EC device
> > device_attach: acpi_wmi0 attach returned 6
> > acpi_wmi0: <ACPI-WMI mapping> on acpi0
> > acpi_wmi0: cannot find EC device
> > device_attach: acpi_wmi0 attach returned 6
> > 
> > 12.2 did not autoload it.
> 
> You may blacklist the module in /etc/rc.conf to disable autoloading, if you wish:
> 
> devmatch_blacklist="acpi_wmi.ko"
> 

Yes, I removed the module and rebooted. The mysterious load is gone but sadly I am not sure that the module was to blame because after loading it again the load did not re-appear. I leave it blacklisted for the time being...

Thanks,
Nikos