I've fixed this issue, by changing trap/interrupt/syscall code to not
use frames on the stack as pass by value. gcc 3.3.1 made some aggressive
(but correct) assumptions about the stack, causing problems in
combination with sibling call optimization.

- Frank

-- 
Frank van der Linden                                            fvdl@netbsd.org
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NetBSD. Free, Unix-like OS. > 45 different platforms.    http://www.netbsd.org/