On Mon, May 21, 2007 at 07:06:47PM +0200, Thomas Mittelstaedt wrote: > Hello, > > We have a large app with a lot of static libraries in it (and I mean a > lot, about 20) and it compiles and links successfully. If I compile it > without optimiztion turned on > (-O2 or some more subtle with -O and others), the program also runs. > With optimizations, though, the program would crash.
While compiler bugs are possible, it is much more likely that it is a program bug. Common causes are uninitialized memory or heap corruption; the effects of this tend to change with optimization.