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    SubjectRe: 2.6.27-rc4-git1: Reported regressions from 2.6.26
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    > Bug-Entry : http://bugzilla.kernel.org/show_bug.cgi?id=11414
    > Subject : Random crashes with 2.6.27-rc3 on PPC
    > Submitter : Michael Buesch <mb@bu3sch.de>
    > Date : 2008-08-23 14:10 (1 days old)
    > References : http://marc.info/?l=linux-kernel&m=121950076812616&w=4

    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.

    Ben.




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