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    SubjectRe: SMP + Hyperthreading / Asus PCDL Deluxe / Kernel 2.4.x 2.6.x / Crash/Freeze
    Date
    On Thursday 11 March 2004 06:50, Len Brown wrote:
    > On Wed, 2004-03-10 at 07:27, Richard Browning wrote:
    > > When operating from the
    > > command line it is usual to see a Machine Check Exception error
    > > immediately prior to system failure.
    >
    > details?

    CPU 2: Machine Check Exception: 000...0004
    CPU 3: Machine Check Exception: 000...0004

    Is what I get now. Previously I also got "Kernel Context Corrupt" in addition
    to the above.

    The MCE error can be made to appear when, for example, I'm running a
    configure/compile cycle. I thought it might be a SATA issue so installed
    Mandrake on an IDE drive but I got the same error.

    As an aside, I'm running Gentoo with CFLAGS=-O2 -march=pentium4 -pipe ... I
    was running CFLAGS=-O3 -march=pentium3 -mcpu=pentium4 -mmmx -ssse2 (and so
    on) with no difference whatsoever (probably shouldn't be a surprise bearing
    in mind the kernel is compiled with its own flags).

    I've run MEMTEST with no errors reported. It's a very interesting problem,
    since with SMP only everything works okay. But SMP+Hyperthreading and, sooner
    rather than later, the thing will bomb.

    R
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