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    SubjectRe: ftrace introduces instability into kernel 2.6.27(-rc2,-rc3)


    On Mon, 18 Aug 2008, Scott Wood wrote:

    > Steven Rostedt wrote:
    > > What syntax to do that with?
    > >
    > > lwz %1,0(%U2)
    > > stu %3, 0(%X2)
    > >
    > > I'm new to those. (and the above does not compile)
    >
    > lwz%U2%X2 %1, %2
    > stw%U2%X2 %3, %2

    Thanks, that's new to me.

    >
    > > > Why stwu with an offset of zero,
    > >
    > > How else to do it? stwu %3, (%2) does not compile for me.
    >
    > stw %3, 0(%2)
    >
    > The "u" tells it to write the effective address back to %2 -- but with an
    > offset of zero, the effective address is unchanged.

    Ah! Right!

    /me should open up his PowerPC ref books again :-p

    -- Steve



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