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    SubjectRe: 2.6.27-rc4-git1: Reported regressions from 2.6.26

    > Bug-Entry :
    > Subject : Random crashes with 2.6.27-rc3 on PPC
    > Submitter : Michael Buesch <>
    > Date : 2008-08-23 14:10 (1 days old)
    > References :

    This appears to be a gcc bug when -fno-omit-stack-pointer is used (which
    we mostly don't need on ppc anyway except that another gcc stupidity makes
    it mandatory for -pg which ftrace needs).

    We're working on a two fold workaround: removing -fno-omit-stack-pointer
    in all the cases where we don't really need it, and for when we do (ie,
    CONFIG_FTRACE becaues of -pg), using -mno-sched-epilog which seems to
    work around it.

    The root cause in gcc hasn't been fully identified yet.


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