crash when calling __builtin_return_address

[Ulrich Lauther]

on a AMD Opteron(tm) Processor 252 with gcc compiled for 
x86_64-unknown-linux-gnu my program crashes when __builtin_return_address()
is called. This happens only in 64-bit mode AND optimization switched on.
The documentation says, __builtin_return_address may not work on all
hosts, but it doesn't speak about crash.

Any hints?

-- 
        -lauther

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Ulrich Lauther          ph: +49 89 636 48834 fx: ... 636 42284
Siemens CT SE 6         Internet: Ulrich.Lauther@siemens.com