On Mon, Feb 11, 2008 at 10:32:46AM -0500, Frank Ch. Eigler wrote:
quoted text
> Andi Kleen <andi@firstfloor.org> writes:
> 
> > [...]  The kgdb code in git-x86#mm is right now is totally broken of
> > course because the CFI annotations in assembler code are gone now,
> > but they are needed for gdb use.  [...]
> 
> This loss of CFI data is unfortunate for other potential consumers
> too, such as systemtap, which intends to supplement its current stack
> backtracing heuristics with CFI data.

They seem to have reverted these patches now, so that problem 
is gone.

Yes there are a couple of other consumers of CFI too, like crash
or the out of tree (but not dead) in kernel unwinder.

-Andi
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