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Mountain Lion only boot with cpus=1

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Joined
Jul 13, 2013
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Motherboard
HP DV6 with Mountain Lion 10.8.4
CPU
Core i3 2.13Ghz
Graphics
nVidia G105M 512MB
Mac
Classic Mac
Mobile Phone
  1. iOS
Hi Guys,
I installed mountain lion 10.8.4, and using Intel Core i3 2.13Ghz.
Everything works fine, but I need boot with "cpus=1"and my system runs only with one core.
Could I change it to use all cores?
I tried edit VoodooTSCSync.kext to:
<dict>
<key>IOCPUNumber</key>
<integer>3</integer>
</dict>
And remove cpus=1, but I got panic.

panic(cpu 1 caller 0xffffff80002be4d4):"Local APIC error, ...


HP Notebook DV6 2137
ML 10.8.4
Intel Core i3 2.13Ghz
8 GB of DDR3 memory
nVidia G105M 512MB
500 GB HDD/SSD 7200 RPM
 

RehabMan

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Joined
May 3, 2012
Messages
186,497
Motherboard
Intel DH67BL
CPU
i7-2600K
Graphics
HD 3000
Mac
  1. MacBook Air
Mobile Phone
  1. iOS
Hi Guys,
I installed mountain lion 10.8.4, and using Intel Core i3 2.13Ghz.
Everything works fine, but I need boot with "cpus=1"and my system runs only with one core.
Could I change it to use all cores?
I tried edit VoodooTSCSync.kext to:
<dict>
<key>IOCPUNumber</key>
<integer>3</integer>
</dict>
And remove cpus=1, but I got panic.

panic(cpu 1 caller 0xffffff80002be4d4):"Local APIC error, ...


HP Notebook DV6 2137
ML 10.8.4
Intel Core i3 2.13Ghz
8 GB of DDR3 memory
nVidia G105M 512MB
500 GB HDD/SSD 7200 RPM

My understanding is with these "consumer" HP laptops like the DV series is you need a patched kernel ('lapic' patch).
Either that or use a bootloader that has built-in kernel patching (Chameleon does).
 
Joined
Jul 13, 2013
Messages
6
Motherboard
HP DV6 with Mountain Lion 10.8.4
CPU
Core i3 2.13Ghz
Graphics
nVidia G105M 512MB
Mac
Classic Mac
Mobile Phone
  1. iOS

RehabMan

Moderator
Joined
May 3, 2012
Messages
186,497
Motherboard
Intel DH67BL
CPU
i7-2600K
Graphics
HD 3000
Mac
  1. MacBook Air
Mobile Phone
  1. iOS
Joined
Jul 13, 2013
Messages
6
Motherboard
HP DV6 with Mountain Lion 10.8.4
CPU
Core i3 2.13Ghz
Graphics
nVidia G105M 512MB
Mac
Classic Mac
Mobile Phone
  1. iOS
I guess didn't install it. I'll do and let you know if works.
Thank you so much for your help!
 
Joined
Jul 13, 2013
Messages
6
Motherboard
HP DV6 with Mountain Lion 10.8.4
CPU
Core i3 2.13Ghz
Graphics
nVidia G105M 512MB
Mac
Classic Mac
Mobile Phone
  1. iOS
Thanks RehabMan
I patched with Lapic Kernel Patcher V0.6, and everything is running well
:))
 

RehabMan

Moderator
Joined
May 3, 2012
Messages
186,497
Motherboard
Intel DH67BL
CPU
i7-2600K
Graphics
HD 3000
Mac
  1. MacBook Air
Mobile Phone
  1. iOS
I have the same problem i only boot with cpus=1 can you help me ?
( i am using hp dm4 2050 st intel hd3000 core i5 2.29ghz 6 gb ddr3

See above. You need a kernel patched for Local APIC panic (lapic panic). Or you can use Chameleon's KernelPatcher module (easiest, and survives system updates).

Most HP consumer laptops need this for some reason...
 
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