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    SubjectHyper Threading slowdown
    Hi!

    I notice Hyper Threading slowdown and kernel hangs while boot on:
    2.6.14.2
    2.6.15_rc6 with & without this patch:
    http://www.kernel.org/git/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commitdiff_plain;h=1e483969930a82e16767884449f3a121a817ef00;hp=4c0335526c95d90a1d958e0059f40a5745fc7c5d
    2.6.15
    (tested on two (similar) servers).

    All details available here: http://bugs.gentoo.org/show_bug.cgi?id=115781

    Below is my /proc/cpuinfo (without SMP) from these two servers.
    If you need more details - email me (I'm not subscribed to this maillist).

    ---server1---
    processor : 0
    vendor_id : GenuineIntel
    cpu family : 15
    model : 4
    model name : Intel(R) Pentium(R) 4 CPU 3.00GHz
    stepping : 3
    cpu MHz : 3000.477
    cache size : 2048 KB
    fdiv_bug : no
    hlt_bug : no
    f00f_bug : no
    coma_bug : no
    fpu : yes
    fpu_exception : yes
    cpuid level : 5
    wp : yes
    flags : fpu vme de pse tsc msr pae mce cx8 apic mtrr pge mca cmov pat pse36 clflush dts acpi mmx fxsr sse sse2 ss ht tm pbe nx lm pni monitor ds_cpl est cid cx16 xtpr
    bogomips : 6008.95

    ---server2---
    processor : 0
    vendor_id : GenuineIntel
    cpu family : 15
    model : 3
    model name : Intel(R) Pentium(R) 4 CPU 3.00GHz
    stepping : 4
    cpu MHz : 2993.283
    cache size : 1024 KB
    physical id : 0
    siblings : 2
    core id : 0
    cpu cores : 1
    fdiv_bug : no
    hlt_bug : no
    f00f_bug : no
    coma_bug : no
    fpu : yes
    fpu_exception : yes
    cpuid level : 5
    wp : yes
    flags : fpu vme de pse tsc msr pae mce cx8 apic mtrr pge mca cmov pat pse36 clflush dts acpi mmx fxsr sse sse2 ss ht tm pbe pni monitor ds_cpl cid xtpr
    bogomips : 5993.49

    --
    WBR, Alex.
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