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E.g. this test fails now on a 6.8.8 upstream kernel > > because of the following difference: > > > > < vmlinux`entry_SYSCALL_64+{ptr} > > --- > > > vmlinux`entry_SYSCALL_64_after_hwframe+{ptr} > > Maybe it would be better to not bother trying to test the full stack trace > > because it is bound to keep changing and we'll keep needing to update the > > test to deal with various kernel versions. After all, we do need to be able > > to pass tests with upstream kernels also. > > Maybe.  Or we just bite the bullet and add more cases as they become > needed.  After all, there is a framework here for being able to add new > cases in the future.  There is the usual tension between simpler tests and > more rigorous testing. Yes, my challenge right now is that I really do not want to try this test on a large variety of kernel versions to ensure that we cover the "most likely cases" of kernels people might be wanting to use (and test) DTrace on. That is a recipe for fa massive headache.