On Monday, 25 of August 2008, Benjamin Herrenschmidt wrote: > > > 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@xxxxxxxxx> > > 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. Thanks Ben. I've already dropped it from the list of recent regressions. Rafael -- To unsubscribe from this list: send the line "unsubscribe kernel-testers" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
