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Mountain Lion only boot with cpus=1

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Joined
Jul 13, 2013
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6
Motherboard
HP DV6 with Mountain Lion 10.8.4
CPU
Core i3 2.13Ghz
Graphics
nVidia G105M 512MB
Mac
  1. 0
Classic Mac
  1. 0
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
 
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).
 
I guess didn't install it. I'll do and let you know if works.
Thank you so much for your help!
 
Thanks RehabMan
I patched with Lapic Kernel Patcher V0.6, and everything is running well
:))
 
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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