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Hi guys,
Is there any possibility to remove support for hotplug cpu's in the
default Sabayon Desktop Kernel configurations?
> grep -r CONFIG_HOTPLUG_CPU ./.config
CONFIG_HOTPLUG_CPU=y
This will make multi CPU interrupts (SMP Affinity) not work the way it
should. Most of the interrupts are being done on CPU0.
> cat /proc/interrupts
CPU0 CPU1 CPU2 CPU3
0: 128 0 0 0 IO-APIC-edge timer
1: 3186 0 0 0 IO-APIC-edge i8042
8: 25 0 0 0 IO-APIC-edge rtc0
9: 932 0 0 0 IO-APIC-fasteoi acpi
12: 137063 0 0 0 IO-APIC-edge i8042
16: 88 0 0 0 IO-APIC-fasteoi
ehci_hcd:usb1
23: 28 0 0 0 IO-APIC-fasteoi
ehci_hcd:usb2
41: 61679 0 0 0 PCI-MSI-edge ahci
42: 1 0 0 0 PCI-MSI-edge
xhci_hcd
43: 0 0 0 0 PCI-MSI-edge
xhci_hcd
44: 0 0 0 0 PCI-MSI-edge
xhci_hcd
45: 0 0 0 0 PCI-MSI-edge
xhci_hcd
46: 0 0 0 0 PCI-MSI-edge
xhci_hcd
47: 14 0 0 0 PCI-MSI-edge mei
48: 616 0 0 0 PCI-MSI-edge
snd_hda_intel
49: 12673 0 0 0 PCI-MSI-edge i915
50: 7459 0 0 0 PCI-MSI-edge eth0
51: 112344 0 0 0 PCI-MSI-edge
fglrx[0]@PCI:1:0:0
NMI: 0 0 0 0 Non-maskable interrupts
LOC: 328986 178957 259553 160788 Local timer interrupts
SPU: 0 0 0 0 Spurious interrupts
PMI: 0 0 0 0 Performance
monitoring interrupts
IWI: 0 0 0 0 IRQ work interrupts
RTR: 3 0 0 0 APIC ICR read retries
RES: 64341 64193 7089 2414 Rescheduling interrupts
CAL: 11685 19169 12544 20025 Function call
interrupts
TLB: 5777 6263 4251 6764 TLB shootdowns
TRM: 0 0 0 0 Thermal event
interrupts
THR: 0 0 0 0 Threshold APIC
interrupts
MCE: 0 0 0 0 Machine check
exceptions
MCP: 6 6 6 6 Machine check polls
ERR: 0
MIS: 0
Kind regards,
Mali Laurent
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