lkml.org 
[lkml]   [2008]   [Aug]   [24]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
    /
    SubjectRe: 2.6.27-rc4-git1: Reported regressions from 2.6.26
    From
    Date

    > 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.




    \
     
     \ /
      Last update: 2008-08-25 02:51    [W:4.823 / U:0.740 seconds]
    ©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site