kernel_task always using above 100% CPU!

[MattMcHackit83]

I'm 99% sure now that the problem is to do with my ACPI files and I suspect it's a bug in the battery methods. I briefly tried swapping out fakeSMC for VirtualSMC and its related drivers and kexts, but got the same results (have now swapped back). Unfortunately, I'm not really knowledgable enough to figure this out on my own. Would anyone else be willing to have a look, please? The problem reporting files above are still current. Many thanks!

 

[MattMcHackit83]

I'm completely stumped. Is there any chance you could take a look when you get chance please @RehabMan? Thank you!

 

[RehabMan]

I'm completely stumped. Is there any chance you could take a look when you get chance please @RehabMan? Thank you!

Your kextcache output proves kexts are not installed correctly.
All kexts you need must be installed to the system volume.
Read post #2 of the Clover guide for details:

[Guide] Booting the OS X installer on LAPTOPS with Clover

Overview One of the first challenges you'll face in installing OS X to your laptop will involve getting the OS X installer to boot from USB. This guide is for those wishing to use Clover (and in fact the only bootloader supported here). Both installing using Clover UEFI and Clover legacy are...

www.tonymacx86.com

Didn't check anything else.

 

[MattMcHackit83]

Your kextcache output proves kexts are not installed correctly.
All kexts you need must be installed to the system volume.
Read post #2 of the Clover guide for details:

[Guide] Booting the OS X installer on LAPTOPS with Clover

Overview One of the first challenges you'll face in installing OS X to your laptop will involve getting the OS X installer to boot from USB. This guide is for those wishing to use Clover (and in fact the only bootloader supported here). Both installing using Clover UEFI and Clover legacy are...

www.tonymacx86.com

Didn't check anything else.

Kexts should now be properly installed. Updated PR files attached. Could you take another look, please @RehabMan ?

 

[Feartech]

Kexts should now be properly installed. Updated PR files attached. Could you take another look, please @RehabMan ?

your ACPI/Patched folder seems wrong

i don't think you need all those in there

you only need to patch to make things work

best to recheck this:

[Guide] Patching LAPTOP DSDT/SSDTs

Overview In order to make many OS X features work well on a laptop, you will always need a properly patched DSDT (and maybe some of the SSDTs). The purpose of this guide is to provide a foundation for proper patching of your OEM DSDT/SSDTs. Advanced users may wish to implement hotpatching via...

www.tonymacx86.com

 

[MattMcHackit83]

your ACPI/Patched folder seems wrong

i don't think you need all those in there

you only need to patch to make things work

best to recheck this:

[Guide] Patching LAPTOP DSDT/SSDTs

Overview In order to make many OS X features work well on a laptop, you will always need a properly patched DSDT (and maybe some of the SSDTs). The purpose of this guide is to provide a foundation for proper patching of your OEM DSDT/SSDTs. Advanced users may wish to implement hotpatching via...

www.tonymacx86.com

Thanks, but I'm not sure which SSDTs can be removed. I tried early (see post #4) and it only made things much worse. Any suggestions?

 

[MattMcHackit83]

your ACPI/Patched folder seems wrong

i don't think you need all those in there

you only need to patch to make things work

best to recheck this:

[Guide] Patching LAPTOP DSDT/SSDTs

Overview In order to make many OS X features work well on a laptop, you will always need a properly patched DSDT (and maybe some of the SSDTs). The purpose of this guide is to provide a foundation for proper patching of your OEM DSDT/SSDTs. Advanced users may wish to implement hotpatching via...

www.tonymacx86.com

Determined that the SSDT required for proper AC adapter detection is SSDT-x2_0-Cpu0Ist.aml and removed all unnecessary ACPI files. No change to kernel_task/CPU usage issues. Updated PR files attached. Would appreciate any contributions, please! @RehabMan

 

[RehabMan]

Determined that the SSDT required for proper AC adapter detection is SSDT-x2_0-Cpu0Ist.aml and removed all unnecessary ACPI files. No change to kernel_task/CPU usage issues. Updated PR files attached. Would appreciate any contributions, please! @RehabMan

See ACPI patching guide:

[Guide] Patching LAPTOP DSDT/SSDTs

Overview In order to make many OS X features work well on a laptop, you will always need a properly patched DSDT (and maybe some of the SSDTs). The purpose of this guide is to provide a foundation for proper patching of your OEM DSDT/SSDTs. Advanced users may wish to implement hotpatching via...

www.tonymacx86.com

 

[MattMcHackit83]

See ACPI patching guide:

[Guide] Patching LAPTOP DSDT/SSDTs

Overview In order to make many OS X features work well on a laptop, you will always need a properly patched DSDT (and maybe some of the SSDTs). The purpose of this guide is to provide a foundation for proper patching of your OEM DSDT/SSDTs. Advanced users may wish to implement hotpatching via...

www.tonymacx86.com

I re-read your guide and have been able to get proper AC adapter detection without retaining SSDT-x2_0-Cpu0Ist.aml, however the CPU usage/kernel_task issue remains. The behaviour still only occurs if ACPIBatteryManager.kext is loaded (currently using the latest debugging version of the kext). Updated PR files attached.

 

[RehabMan]

I re-read your guide and have been able to get proper AC adapter detection without retaining SSDT-x2_0-Cpu0Ist.aml, however the CPU usage/kernel_task issue remains. The behaviour still only occurs if ACPIBatteryManager.kext is loaded (currently using the latest debugging version of the kext). Updated PR files attached.

If you think ACPIBatteryManager.kext is causing some issue (a hang internally with it?), you will need to add some debugging code to it in order to find the problem.