Mailinglist Archive: opensuse-bugs (4369 mails)

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https://bugzilla.novell.com/show_bug.cgi?id=204125





------- Comment #4 from jamnt@xxxxxxxxxxxxx  2006-09-13 07:39 MST -------
nope,
I compiled my own kernel, this is core duo. As far as I know this meand that I
have two processors not one with fake/software support (hypertreading). Besides
I have hypertreading disabled as coure duo does not suppot it (this if
supported will "create" four cpus).


I am curious how did you got this impression about hypertreading fcom
/proc/cpuinfo?


To prove that hypertreding is disabled

this is relevant part of the kernel .config:
Processor type and features
#
CONFIG_SMP=y  <------- symetric multiprocessing enabled (Intel core duo T2500)
CONFIG_X86_PC=y
...............
...............
CONFIG_MPENTIUMM=y
...............
...............
CONFIG_X86_GENERIC=y
CONFIG_X86_CMPXCHG=y
CONFIG_X86_XADD=y
CONFIG_X86_L1_CACHE_SHIFT=7
CONFIG_RWSEM_XCHGADD_ALGORITHM=y
CONFIG_GENERIC_CALIBRATE_DELAY=y
CONFIG_X86_WP_WORKS_OK=y
CONFIG_X86_INVLPG=y
CONFIG_X86_BSWAP=y
CONFIG_X86_POPAD_OK=y
CONFIG_X86_CMPXCHG64=y
CONFIG_X86_GOOD_APIC=y
CONFIG_X86_INTEL_USERCOPY=y
CONFIG_X86_USE_PPRO_CHECKSUM=y
CONFIG_X86_TSC=y
CONFIG_HPET_TIMER=y
CONFIG_HPET_EMULATE_RTC=y
CONFIG_NR_CPUS=8
# CONFIG_SCHED_SMT is not set <--------------------- disabled (Hypertreading
scheduler disabled)
CONFIG_SCHED_MC=y
# CONFIG_PREEMPT_NONE is not set
# CONFIG_PREEMPT_VOLUNTARY is not set
CONFIG_PREEMPT=y
CONFIG_PREEMPT_BKL=y
# CONFIG_CLASSIC_RCU is not set
CONFIG_PREEMPT_RCU=y
# CONFIG_RCU_TRACE is not set
CONFIG_X86_LOCAL_APIC=y
CONFIG_X86_IO_APIC=y
CONFIG_X86_MCE=y
# CONFIG_X86_MCE_NONFATAL is not set
CONFIG_X86_MCE_P4THERMAL=y
# CONFIG_TOSHIBA is not set
# CONFIG_I8K is not set
# CONFIG_X86_REBOOTFIXUPS is not set
CONFIG_MICROCODE=m
CONFIG_X86_MSR=m
CONFIG_X86_CPUID=m


unless you have some revelations about core duo, this is dual cpu system
(according to Intel), not single cpu with hypertreading enabled.


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