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Old 09-07-2003, 03:54 PM   #1
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Registered: Mar 2003
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Hypertherad Kernel 2.5.75 and your /proc/cpuinfo


i still can NOT enable hyperthread despite
enabled hyperthread in bios setup
compiled the kernel 2.5.75 with smp enabled
keyed in acpismp=force at linux loader

here is what i have in the /proc/cpuinfo:
processor : 0
vendor_id : GenuineIntel
cpu family : 15
model : 2
model name : Intel(R) Pentium(R) 4 CPU 2.66GHz
stepping : 7
cpu MHz : 2659.588
cache size : 512 KB
physical id : 0
siblings : 1
fdiv_bug : no
hlt_bug : no
f00f_bug : no
coma_bug : no
fpu : yes
fpu_exception : yes
cpuid level : 2
wp : yes
flags : fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pat pse36 clflush dts acpi mmx fxsr sse sse2 ss ht tm pbe cid
bogomips : 5242.88

and here is partial listing of my /var/log/messages
kernel: found SMP MP-table at 000f4f10
kernel: ACPI: RSDP (v000 IntelR ) @ 0x000f6c50
kernel: ACPI: RSDT (v001 IntelR AWRDACPI 16944.11825) @ 0x3fff3000
kernel: ACPI: FADT (v001 IntelR AWRDACPI 16944.11825) @ 0x3fff3040
kernel: ACPI: MADT (v001 IntelR AWRDACPI 16944.11825) @ 0x3fff7040
kernel: ACPI: DSDT (v001 INTELR AWRDACPI 00000.04096) @ 0x00000000
kernel: ACPI: BIOS passes blacklist
kernel: ACPI: Local APIC address 0xfee00000
kernel: ACPI: LAPIC (acpi_id[0x00] lapic_id[0x00] enabled)
kernel: ACPI: LAPIC (acpi_id[0x01] lapic_id[0x01] disabled)
kernel: ACPI: IOAPIC (id[0x02] address[0xfec00000] global_irq_base[0x0])
kernel: IOAPIC[0]: Assigned apic_id 2
kernel: ACPI: INT_SRC_OVR (bus[0] irq[0x0] global_irq[0x2] polarity[0x0] trigger[0x0])
kernel: ACPI: INT_SRC_OVR (bus[0] irq[0x9] global_irq[0x9] polarity[0x1] trigger[0x3])
kernel: Using ACPI (MADT) for SMP configuration information
kernel: Initializing CPU#0
kernel: Memory: 902940k/917504k available (2915k kernel code, 13784k reserved, 1229k data, 180k init, 0k highmem)
kernel: Dentry cache hash table entries: 131072 (order: 7, 524288 bytes)
kernel: CPU: Trace cache: 12K uops, L1 D cache: 8K
kernel: CPU: L2 cache: 512K

kernel: CPU: Hyper-Threading is disabled

kernel: Intel machine check architecture supported.
kernel: Intel machine check reporting enabled on CPU#0.
kernel: CPU#0: Intel P4/Xeon Extended MCE MSRs (12) available
kernel: CPU#0: Thermal monitoring enabled
kernel: Enabling fast FPU save and restore... done.
kernel: .................................... done.
kernel: PCI: PCI BIOS revision 2.10 entry at 0xfb1b0, last bus=2
kernel: PCI: Using configuration type 1
kernel: ACPI: Subsystem revision 20030619
kernel: ACPI: Interpreter enabled
kernel: Linux agpgart interface v0.100 (c) Dave Jones
kernel: agpgart: Detected an Intel E7205 Chipset.
kernel: agpgart: Maximum main memory to use for agp memory: 816M
kernel: agpgart: AGP aperture is 128M @ 0xe8000000


please note in the above listing there is a line
"kernel: CPU: Hyper-Threading is disabled"

well, how do i get hyperthread working in this machine?

thank you.


ps, is your hypertread really working?
Old 09-16-2003, 06:19 PM   #2
LQ Newbie
Registered: Sep 2003
Location: Winnipeg
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If you hear anything could you please e-mail me
Old 09-16-2003, 09:11 PM   #3
Registered: Jan 2003
Location: Northam, W.A., Australia
Distribution: Gentoo ~x86
Posts: 321

Rep: Reputation: 31
Have you tried a later development kernel? They're up to 2.6.0-test4 last I checked.


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